<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  11.3.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 4/30/2026 9:04:21 PM-->
<!--Modified on: 4/30/2026 9:04:21 PM-->
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="dei_IcfrAuditorAttestationFlag" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_IcfrAuditorAttestationFlag" xlink:to="dei_IcfrAuditorAttestationFlag_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xml:lang="en-US">ICFR Auditor Attestation Flag</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="dei_DocumentFinStmtErrorCorrectionFlag_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAccountingStandard" xlink:label="dei_DocumentAccountingStandard" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAccountingStandard" xlink:to="dei_DocumentAccountingStandard_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAccountingStandard_lbl" xml:lang="en-US">Document Accounting Standard</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName" xlink:label="dei_AuditorName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorName" xlink:to="dei_AuditorName_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditorName_lbl" xml:lang="en-US">Auditor Name</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId" xlink:label="dei_AuditorFirmId" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorFirmId" xlink:to="dei_AuditorFirmId_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditorFirmId_lbl" xml:lang="en-US">Auditor Firm ID</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation" xlink:label="dei_AuditorLocation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorLocation" xlink:to="dei_AuditorLocation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditorLocation_lbl" xml:lang="en-US">Auditor Location</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_StatementOfFinancialPositionAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Consolidated statement of financial position</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Statement of financial position</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAbstract" xlink:label="ifrs-full_AssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAbstract" xlink:to="ifrs-full_AssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsAbstract_lbl" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AssetsAbstract_lbl" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssetsAbstract" xlink:label="ifrs-full_CurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssetsAbstract" xlink:to="ifrs-full_CurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl" xml:lang="en-US">Current assets [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl" xml:lang="en-US">Current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_CashAndCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents (Note 6)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalent at the end of the year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents at the beginning of the year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Total cash and cash equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US">Trade and other current receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US">Total current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Inventories" xlink:label="ifrs-full_Inventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Inventories" xlink:to="ifrs-full_Inventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Inventories_lbl" xml:lang="en-US">Current inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Inventories_lbl" xml:lang="en-US">Inventories, net</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Inventories_lbl" xml:lang="en-US">Inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentFinancialAssets" xlink:label="ifrs-full_OtherCurrentFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentFinancialAssets" xlink:to="ifrs-full_OtherCurrentFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentFinancialAssets_lbl" xml:lang="en-US">Other current financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentFinancialAssets_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentFinancialAssets_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxAssetsCurrent" xlink:label="ifrs-full_CurrentTaxAssetsCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxAssetsCurrent" xlink:to="ifrs-full_CurrentTaxAssetsCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_lbl" xml:lang="en-US">Current tax assets, current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_lbl" xml:lang="en-US">Current tax assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_lbl" xml:lang="en-US">Current tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentNonfinancialAssets" xlink:label="ifrs-full_OtherCurrentNonfinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentNonfinancialAssets" xlink:to="ifrs-full_OtherCurrentNonfinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentNonfinancialAssets_lbl" xml:lang="en-US">Other current non-financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentNonfinancialAssets_lbl" xml:lang="en-US">Other assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherCurrentNonfinancialAssets_lbl" xml:lang="en-US">Total current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssets" xlink:label="ifrs-full_CurrentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US">Current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US">Total current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US">Current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsAbstract" xlink:label="ifrs-full_NoncurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsAbstract" xlink:to="ifrs-full_NoncurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssetsAbstract_lbl" xml:lang="en-US">Non-current assets [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentAssetsAbstract_lbl" xml:lang="en-US">Non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivables" xlink:label="ifrs-full_NoncurrentReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentReceivables" xlink:to="ifrs-full_NoncurrentReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentReceivables_lbl" xml:lang="en-US">Trade and other non-current receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentReceivables_lbl" xml:lang="en-US">Total non-current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentReceivables_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentFinancialAssets" xlink:to="ifrs-full_OtherNoncurrentFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xml:lang="en-US">Other non-current financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xml:lang="en-US">Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:to="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Investments in subsidiaries, joint ventures and associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Total investments in subsidiaries, joint ventures and associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Investment in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="ifrs-full_PropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipment" xlink:to="ifrs-full_PropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl" xml:lang="en-US">Property, plant and equipment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl" xml:lang="en-US">Ending Balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl" xml:lang="en-US">Beginning Balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources" xlink:label="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources" xlink:to="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Assets arising from exploration for and evaluation of mineral resources</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Ending Balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Beginning Balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AssetsArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssets" xlink:label="ifrs-full_RightofuseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RightofuseAssets" xlink:to="ifrs-full_RightofuseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RightofuseAssets_lbl" xml:lang="en-US">Right-of-use assets 1</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_RightofuseAssets_lbl" xml:lang="en-US">Balance at the end</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_RightofuseAssets_lbl" xml:lang="en-US">Balance at the beginning</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RightofuseAssets_lbl" xml:lang="en-US">Right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Ending balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Beginning balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxAssetsNoncurrent" xlink:label="ifrs-full_CurrentTaxAssetsNoncurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxAssetsNoncurrent" xlink:to="ifrs-full_CurrentTaxAssetsNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxAssetsNoncurrent_lbl" xml:lang="en-US">Current tax assets, non-current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxAssetsNoncurrent_lbl" xml:lang="en-US">Non-current tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Goodwill" xlink:label="ifrs-full_Goodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Goodwill" xlink:to="ifrs-full_Goodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Goodwill_lbl" xml:lang="en-US">Goodwill.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Goodwill_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentNonfinancialAssets" xlink:label="ifrs-full_OtherNoncurrentNonfinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentNonfinancialAssets" xlink:to="ifrs-full_OtherNoncurrentNonfinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentNonfinancialAssets_lbl" xml:lang="en-US">Other non-current non-financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentNonfinancialAssets_lbl" xml:lang="en-US">Other assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherNoncurrentNonfinancialAssets_lbl" xml:lang="en-US">Total non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssets" xlink:label="ifrs-full_NoncurrentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US">Long-Lived Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US">Total non-current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US">Non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets" xlink:label="ifrs-full_Assets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_Assets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US">Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US">Total assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US">Total assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesAbstract" xlink:label="ifrs-full_LiabilitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesAbstract" xlink:to="ifrs-full_LiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesAbstract_lbl" xml:lang="en-US">Liabilities [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LiabilitiesAbstract_lbl" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilitiesAbstract" xlink:label="ifrs-full_CurrentLiabilitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilitiesAbstract" xlink:to="ifrs-full_CurrentLiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Current liabilities [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:to="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" xml:lang="en-US">Current borrowings and current portion of non-current borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US">Trade and other current payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US">Total trade and other current payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentProvisionsForEmployeeBenefits" xlink:label="ifrs-full_CurrentProvisionsForEmployeeBenefits" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentProvisionsForEmployeeBenefits" xlink:to="ifrs-full_CurrentProvisionsForEmployeeBenefits_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Current provisions for employee benefits</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Provisions for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:to="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" xml:lang="en-US">Current tax liabilities, current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" xml:lang="en-US">Current tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AccruedNonCurrentLiabilitiesAndProvisions" xlink:label="ec_AccruedNonCurrentLiabilitiesAndProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AccruedNonCurrentLiabilitiesAndProvisions" xlink:to="ec_AccruedNonCurrentLiabilitiesAndProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AccruedNonCurrentLiabilitiesAndProvisions_lbl" xml:lang="en-US">Represent the accrued non current liabilities and provisions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AccruedNonCurrentLiabilitiesAndProvisions_lbl" xml:lang="en-US">Accrued Non Current Liabilities And Provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AccruedNonCurrentLiabilitiesAndProvisions_lbl" xml:lang="en-US">Accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentLiabilities" xlink:label="ifrs-full_OtherCurrentLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentLiabilities" xlink:to="ifrs-full_OtherCurrentLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentLiabilities_lbl" xml:lang="en-US">Other current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentLiabilities_lbl" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilities" xlink:label="ifrs-full_CurrentLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US">Current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US">Total current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US">Current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilitiesAbstract" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Non-current liabilities [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Non-current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:label="ifrs-full_LongtermBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowings" xlink:to="ifrs-full_LongtermBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US">Non-current portion of non-current borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US">Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentProvisionsForEmployeeBenefits" xlink:label="ifrs-full_NoncurrentProvisionsForEmployeeBenefits" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentProvisionsForEmployeeBenefits" xlink:to="ifrs-full_NoncurrentProvisionsForEmployeeBenefits_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Non-current provisions for employee benefits</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Non-current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Provisions for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesNoncurrent" xlink:label="ifrs-full_CurrentTaxLiabilitiesNoncurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxLiabilitiesNoncurrent" xlink:to="ifrs-full_CurrentTaxLiabilitiesNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxLiabilitiesNoncurrent_lbl" xml:lang="en-US">Current tax liabilities, non-current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxLiabilitiesNoncurrent_lbl" xml:lang="en-US">Non-current tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Provisions" xlink:label="ifrs-full_Provisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Provisions" xlink:to="ifrs-full_Provisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Provisions_lbl" xml:lang="en-US">Provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Provisions_lbl" xml:lang="en-US">Accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentLiabilities" xlink:label="ifrs-full_OtherNoncurrentLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentLiabilities" xlink:to="ifrs-full_OtherNoncurrentLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentLiabilities_lbl" xml:lang="en-US">Other non-current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherNoncurrentLiabilities_lbl" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="ifrs-full_NoncurrentLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US">Non-current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US">Total non-current liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US">Non-current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities" xlink:label="ifrs-full_Liabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_Liabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Liabilities_lbl" xml:lang="en-US">Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Liabilities_lbl" xml:lang="en-US">Total liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Liabilities_lbl" xml:lang="en-US">Total liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Liabilities_lbl" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAbstract" xlink:label="ifrs-full_EquityAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_EquityAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAbstract_lbl" xml:lang="en-US">Equity [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAbstract_lbl" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapital" xlink:label="ifrs-full_IssuedCapital" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssuedCapital_lbl" xml:lang="en-US">Issued capital</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IssuedCapital_lbl" xml:lang="en-US">Subscribed and paid in capital</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionalPaidinCapital" xlink:label="ifrs-full_AdditionalPaidinCapital" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionalPaidinCapital" xlink:to="ifrs-full_AdditionalPaidinCapital_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionalPaidinCapital_lbl" xml:lang="en-US">Additional Paid in Capital</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionalPaidinCapital_lbl" xml:lang="en-US">Additional paid in capital</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherReserves" xlink:to="ifrs-full_OtherReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherReserves_lbl" xml:lang="en-US">Other reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherReserves_lbl" xml:lang="en-US">Reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherReserves_lbl" xml:lang="en-US">Equity reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:to="ifrs-full_AccumulatedOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncome_lbl" xml:lang="en-US">Accumulated other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncome_lbl" xml:lang="en-US">Accumulated other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarnings" xlink:label="ifrs-full_RetainedEarnings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarnings" xlink:to="ifrs-full_RetainedEarnings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetainedEarnings_lbl" xml:lang="en-US">Retained earnings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RetainedEarnings_lbl" xml:lang="en-US">Retained earnings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="ifrs-full_EquityAttributableToOwnersOfParent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent_lbl" xml:lang="en-US">Equity attributable to owners of parent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent_lbl" xml:lang="en-US">Equity attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterests" xlink:label="ifrs-full_NoncontrollingInterests" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncontrollingInterests" xlink:to="ifrs-full_NoncontrollingInterests_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncontrollingInterests_lbl" xml:lang="en-US">Non-controlling interests</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncontrollingInterests_lbl" xml:lang="en-US">Non controlling interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Net equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Equity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Total equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Equity (Note 24)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilities" xlink:label="ifrs-full_EquityAndLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAndLiabilities" xlink:to="ifrs-full_EquityAndLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAndLiabilities_lbl" xml:lang="en-US">Equity and liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_EquityAndLiabilities_lbl" xml:lang="en-US">Total liabilities and equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeStatementAbstract" xlink:label="ifrs-full_IncomeStatementAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_IncomeStatementAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeStatementAbstract_lbl" xml:lang="en-US">Consolidated statement of profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncomeStatementAbstract_lbl" xml:lang="en-US">Statement of profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="ifrs-full_Revenue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Revenue" xlink:to="ifrs-full_Revenue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Revenue_lbl" xml:lang="en-US">Revenue</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Revenue_lbl" xml:lang="en-US">Sales</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Revenue_lbl" xml:lang="en-US">Sales revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfSales" xlink:label="ifrs-full_CostOfSales" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CostOfSales" xlink:to="ifrs-full_CostOfSales_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US">Cost of sales.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US">Cost of sales</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US">Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US">Cost of sales</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit" xlink:label="ifrs-full_GrossProfit" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossProfit" xlink:to="ifrs-full_GrossProfit_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossProfit_lbl" xml:lang="en-US">Gross Profit</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossProfit_lbl" xml:lang="en-US">Gross profit</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_GrossProfit_lbl" xml:lang="en-US">Gross profit</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdministrativeExpense" xlink:label="ifrs-full_AdministrativeExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdministrativeExpense" xlink:to="ifrs-full_AdministrativeExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdministrativeExpense_lbl" xml:lang="en-US">Administrative expenses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_AdministrativeExpense_lbl" xml:lang="en-US">Administrative expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdministrativeExpense_lbl" xml:lang="en-US">Administrative expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingExpense" xlink:label="ifrs-full_OperatingExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OperatingExpense" xlink:to="ifrs-full_OperatingExpense_lbl" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OperatingExpense_lbl" xml:lang="en-US">Operations and project expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9" xlink:label="ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9_lbl" xml:lang="en-US">Impairment (loss) reversal of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense" xlink:label="ifrs-full_OtherOperatingIncomeExpense" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherOperatingIncomeExpense_lbl" xml:lang="en-US">Other operating income (expense)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherOperatingIncomeExpense_lbl" xml:lang="en-US">Other operating (expense) income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherOperatingIncomeExpense_lbl" xml:lang="en-US">Other operating income (expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ifrs-full_ProfitLossFromOperatingActivities" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US">Profit (loss) from operating activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US">Operating income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US">Operating income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceIncomeCostAbstractAbstract" xlink:label="ec_FinanceIncomeCostAbstractAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceIncomeCostAbstractAbstract" xlink:to="ec_FinanceIncomeCostAbstractAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceIncomeCostAbstractAbstract_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceIncomeCostAbstractAbstract_lbl" xml:lang="en-US">Finance income cost abstract [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FinanceIncomeCostAbstractAbstract_lbl" xml:lang="en-US">Financial results</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceIncome" xlink:label="ifrs-full_FinanceIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceIncome" xlink:to="ifrs-full_FinanceIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US">Finance income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US">Financial income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US">Finance income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US">Finance income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceCosts" xlink:label="ifrs-full_FinanceCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceCosts" xlink:to="ifrs-full_FinanceCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US">Finance costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US">Finance expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US">Financial cost registered to projects</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US">Financial expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Foreign exchange gain (loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Foreign exchange gain (loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Foreign exchange (loss) gain</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceIncomeCost" xlink:label="ifrs-full_FinanceIncomeCost" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceIncomeCost_lbl" xml:lang="en-US">Finance income (cost)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinanceIncomeCost_lbl" xml:lang="en-US">Financial results</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceIncomeCost_lbl" xml:lang="en-US">Total financial result</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinanceIncomeCost_lbl" xml:lang="en-US">Financial (expenses) income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Share of profit of associates and joint ventures</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Share of profits of associates and joint ventures of the respective taxable year of Colombia companies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Share of profits of associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ifrs-full_ProfitLossBeforeTax" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Profit before income tax expense of Colombia Group companies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Profit before income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Profit before income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Profit before income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Tax expense (income), continuing operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Net income tax of Colombia Group companies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Income tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Income tax expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Profit (loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Financial year results</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Net profit for the year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Net profit for the year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Net profit</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToAbstract" xlink:label="ifrs-full_ProfitLossAttributableToAbstract" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToAbstract_lbl" xml:lang="en-US">Profit (loss), attributable to [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossAttributableToAbstract_lbl" xml:lang="en-US">Net profit (loss) for the year attributable to:</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossAttributableToAbstract_lbl" xml:lang="en-US">Net profit for the year attributable to:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US">Profit (loss), attributable to owners of parent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US">Owners of parent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US">Profit attributable to Ecopetrol's ordinary shareholders</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US">Profit (loss), attributable to non-controlling interests</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US">Non-controlling interest</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US">Non-controlling interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="ifrs-full_BasicEarningsLossPerShare" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US">Basic earnings (loss) per share</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US">Basic earnings per share (Colombian pesos per share)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US">Basic ordinary shares earnings per share (Colombian pesos)</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DilutedEarningsLossPerShare_lbl" xml:lang="en-US">Diluted earnings per share (Colombian pesos per share)</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:label="ifrs-full_StatementOfComprehensiveIncomeAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="ifrs-full_StatementOfComprehensiveIncomeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Consolidated statement of comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAbstract" xlink:label="ifrs-full_OtherComprehensiveIncomeAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="ifrs-full_OtherComprehensiveIncomeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Other comprehensive income [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Other comprehensive income:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US">Other comprehensive income that may be reclassified to profit or loss in subsequent periods -net of taxes:</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnrealizedGainLossOnHedgesAbstract" xlink:label="ec_UnrealizedGainLossOnHedgesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnrealizedGainLossOnHedgesAbstract" xlink:to="ec_UnrealizedGainLossOnHedgesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UnrealizedGainLossOnHedgesAbstract_lbl" xml:lang="en-US">no definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnrealizedGainLossOnHedgesAbstract_lbl" xml:lang="en-US">Unrealized gain loss on hedges [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_UnrealizedGainLossOnHedgesAbstract_lbl" xml:lang="en-US">Unrealized (loss) gain on hedges:</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US">Gains (losses) on cash flow hedges, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US">Cash flow hedge for future exports</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:label="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:to="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax_lbl" xml:lang="en-US">Gains (losses) on hedges of net investments in foreign operations, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax" xlink:label="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax" xlink:to="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax_lbl" xml:lang="en-US">The gains (losses) recognised in other comprehensive income on cash flow hedges of derivative instruments, net of tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax_lbl" xml:lang="en-US">Gains losses on hedges of derivative instruments net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GainsLossesOnHedgesOfDerivativeInstrumentsNetOfTax_lbl" xml:lang="en-US">Cash flow hedge with derivative instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xlink:label="ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax" xlink:to="ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Financial instruments measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_lbl" xml:lang="en-US">Gains (losses) on exchange differences on translation, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Valuation of financial instruments at fair value, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US">Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US">Other comprehensive income that will not to be reclassified to profit or loss in subsequent periods (net of taxes):</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Actuarial gains</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Actuarial valuation gains (losses), After tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Actuarial gain (loss)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments_lbl" xml:lang="en-US">Other comprehensive income, net of tax, gains (losses) on hedging instruments that hedge investments in equity instruments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments_lbl" xml:lang="en-US">Equity financial instruments measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Other comprehensive income that will not be reclassified to profit or loss, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Other comprehensive income that will not to be reclassified to profit or loss in subsequent periods -net of taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncome" xlink:to="ifrs-full_OtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncome_lbl" xml:lang="en-US">Total comprehensive income for the year, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncome_lbl" xml:lang="en-US">Other comprehensive income for the year, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherComprehensiveIncome_lbl" xml:lang="en-US">Other comprehensive results</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ifrs-full_ComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComprehensiveIncome" xlink:to="ifrs-full_ComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncome_lbl" xml:lang="en-US">Comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ComprehensiveIncome_lbl" xml:lang="en-US">Total comprehensive income for the year, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToAbstract_lbl" xml:lang="en-US">Comprehensive income attributable to [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToAbstract_lbl" xml:lang="en-US">Total comprehensive income for the year attributable to:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_lbl" xml:lang="en-US">Comprehensive income, attributable to owners of parent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_lbl" xml:lang="en-US">Owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_lbl" xml:lang="en-US">Comprehensive income, attributable to non-controlling interests</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_lbl" xml:lang="en-US">Non-controlling interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:label="ifrs-full_StatementOfChangesInEquityAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="ifrs-full_StatementOfChangesInEquityAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityAbstract_lbl" xml:lang="en-US">Consolidated statement of changes in equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="ifrs-full_StatementOfChangesInEquityTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityTable" xlink:to="ifrs-full_StatementOfChangesInEquityTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityTable_lbl" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="ifrs-full_ComponentsOfEquityAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfEquityAxis" xlink:to="ifrs-full_ComponentsOfEquityAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfEquityAxis_lbl" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="ifrs-full_ComponentsOfEquityDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_ComponentsOfEquityDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfEquityDomain_lbl" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:label="ifrs-full_IssuedCapitalMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapitalMember" xlink:to="ifrs-full_IssuedCapitalMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssuedCapitalMember_lbl" xml:lang="en-US">Issued Capital [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IssuedCapitalMember_lbl" xml:lang="en-US">Subscribed and paid-in capital</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionalPaidinCapitalMember" xlink:label="ifrs-full_AdditionalPaidinCapitalMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionalPaidinCapitalMember" xlink:to="ifrs-full_AdditionalPaidinCapitalMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionalPaidinCapitalMember_lbl" xml:lang="en-US">Additional paid-in capital [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionalPaidinCapitalMember_lbl" xml:lang="en-US">Additional paid-in capital</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReservesMember" xlink:label="ifrs-full_OtherReservesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherReservesMember" xlink:to="ifrs-full_OtherReservesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherReservesMember_lbl" xml:lang="en-US">Other Reserves [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherReservesMember_lbl" xml:lang="en-US">Reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncomeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:to="ifrs-full_AccumulatedOtherComprehensiveIncomeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncomeMember_lbl" xml:lang="en-US">Other [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AccumulatedOtherComprehensiveIncomeMember_lbl" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember" xlink:label="ifrs-full_RetainedEarningsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarningsMember" xlink:to="ifrs-full_RetainedEarningsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetainedEarningsMember_lbl" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RetainedEarningsMember_lbl" xml:lang="en-US">Retained earnings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" xml:lang="en-US">Equity Attributable To Owners Of Parent [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:label="ifrs-full_NoncontrollingInterestsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncontrollingInterestsMember" xlink:to="ifrs-full_NoncontrollingInterestsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncontrollingInterestsMember_lbl" xml:lang="en-US">Non controlling Interests [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncontrollingInterestsMember_lbl" xml:lang="en-US">Non-controlling interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CumulativeEffectAtDateOfInitialApplicationAxis" xlink:label="ifrs-full_CumulativeEffectAtDateOfInitialApplicationAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CumulativeEffectAtDateOfInitialApplicationAxis" xlink:to="ifrs-full_CumulativeEffectAtDateOfInitialApplicationAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CumulativeEffectAtDateOfInitialApplicationAxis_lbl" xml:lang="en-US">Cumulative effect at date of initial application [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OpeningBalanceBeforeAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" xlink:label="ifrs-full_OpeningBalanceBeforeAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OpeningBalanceBeforeAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" xlink:to="ifrs-full_OpeningBalanceBeforeAdjustmentCumulativeEffectAtDateOfInitialApplicationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OpeningBalanceBeforeAdjustmentCumulativeEffectAtDateOfInitialApplicationMember_lbl" xml:lang="en-US">Opening balance before adjustment, cumulative effect at date of initial application [member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsCumulativeEffectAtDateOfInitialApplicationMember" xlink:label="ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsCumulativeEffectAtDateOfInitialApplicationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsCumulativeEffectAtDateOfInitialApplicationMember" xlink:to="ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsCumulativeEffectAtDateOfInitialApplicationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsCumulativeEffectAtDateOfInitialApplicationMember_lbl" xml:lang="en-US">Adoption of new standards</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OpeningBalanceAfterAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" xlink:label="ifrs-full_OpeningBalanceAfterAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OpeningBalanceAfterAdjustmentCumulativeEffectAtDateOfInitialApplicationMember" xlink:to="ifrs-full_OpeningBalanceAfterAdjustmentCumulativeEffectAtDateOfInitialApplicationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OpeningBalanceAfterAdjustmentCumulativeEffectAtDateOfInitialApplicationMember_lbl" xml:lang="en-US">After adoption of new standards IFRS</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_StatementOfChangesInEquityLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems_lbl" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems_lbl" xml:lang="en-US">Consolidated statement of changes in equity</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughReleaseOfReserveEquity" xlink:label="ec_IncreaseDecreaseThroughReleaseOfReserveEquity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughReleaseOfReserveEquity" xlink:to="ec_IncreaseDecreaseThroughReleaseOfReserveEquity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughReleaseOfReserveEquity_lbl" xml:lang="en-US">The increase (decrease) in equity resulting from the release of reserve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughReleaseOfReserveEquity_lbl" xml:lang="en-US">Increase (Decrease) Through Release of Reserve, Equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughReleaseOfReserveEquity_lbl" xml:lang="en-US">Release of reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests" xlink:to="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_lbl" xml:lang="en-US">Dividends recognised as distributions to non-controlling interests</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_lbl" xml:lang="en-US">Dividends declared</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders" xlink:label="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders" xlink:to="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders_lbl" xml:lang="en-US">The amount of increase (decrease) through equity restitution to minority shareholders.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders_lbl" xml:lang="en-US">Increase (Decrease) Through Equity Restitution to Minority Shareholders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_IncreaseDecreaseThroughEquityRestitutionToMinorityShareholders_lbl" xml:lang="en-US">Equity restitution to minority shareholders</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughEquityRestitution" xlink:label="ec_IncreaseDecreaseThroughEquityRestitution" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughEquityRestitution" xlink:to="ec_IncreaseDecreaseThroughEquityRestitution_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughEquityRestitution_lbl" xml:lang="en-US">The amount of increase (decrease) through equity restitution.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughEquityRestitution_lbl" xml:lang="en-US">Increase (Decrease) Through Equity Restitution</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughEquityRestitution_lbl" xml:lang="en-US">Equity restitution</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:label="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:to="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_lbl" xml:lang="en-US">Increase (decrease) through acquisition of subsidiary, equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_lbl" xml:lang="en-US">Acquisition of subsidiaries</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_lbl" xml:lang="en-US">Business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughLegal" xlink:label="ec_IncreaseDecreaseThroughLegal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughLegal" xlink:to="ec_IncreaseDecreaseThroughLegal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughLegal_lbl" xml:lang="en-US">The increase (decrease) in equity resulting from the appropriation of legal.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughLegal_lbl" xml:lang="en-US">Increase Decrease Through Legal</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughLegal_lbl" xml:lang="en-US">Appropriation of reserves, Legal</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve" xlink:label="ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve" xlink:to="ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve_lbl" xml:lang="en-US">Increase (decrease) through transfer to statutory reserve, equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransferToStatutoryReserve_lbl" xml:lang="en-US">Appropriation of reserves ,Fiscal and statutory</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughOccasional" xlink:label="ec_IncreaseDecreaseThroughOccasional" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughOccasional" xlink:to="ec_IncreaseDecreaseThroughOccasional_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughOccasional_lbl" xml:lang="en-US">The increase (decrease) in equity resulting from the appropriation of occasional.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughOccasional_lbl" xml:lang="en-US">Increase Decrease Through Occasional</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughOccasional_lbl" xml:lang="en-US">Appropriation of reserves , Occasional</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughOtherReserves" xlink:label="ec_IncreaseDecreaseThroughOtherReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughOtherReserves" xlink:to="ec_IncreaseDecreaseThroughOtherReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughOtherReserves_lbl" xml:lang="en-US">The increase (decrease) in equity resulting from the appropriation of other reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughOtherReserves_lbl" xml:lang="en-US">Increase Decrease Through Other Reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughOtherReserves_lbl" xml:lang="en-US">Appropriation of reserves, Other reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectivenessAbstract" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnHedgeIneffectivenessAbstract" xlink:to="ifrs-full_GainLossOnHedgeIneffectivenessAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessAbstract_lbl" xml:lang="en-US">Gain (loss) on hedge ineffectiveness [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessAbstract_lbl" xml:lang="en-US">(Loss) gain on hedging instruments:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract" xlink:label="ifrs-full_StatementOfCashFlowsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_StatementOfCashFlowsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Consolidated statement of cash flows</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Cash flow from operating activities:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl" xml:lang="en-US">Adjustments to reconcile the net profit to net cash provided by operating activities:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xml:lang="en-US">Adjustments for income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xml:lang="en-US">Income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:label="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:to="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_lbl" xml:lang="en-US">Adjustments for depreciation and amortisation expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_lbl" xml:lang="en-US">Depreciation, depletion, and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:to="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Adjustments for unrealised foreign exchange losses (gains)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Foreign exchange gain</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Foreign exchange gain</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForFinanceCosts" xlink:label="ifrs-full_AdjustmentsForFinanceCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFinanceCosts" xlink:to="ifrs-full_AdjustmentsForFinanceCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl" xml:lang="en-US">Adjustments for finance costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl" xml:lang="en-US">Finance cost of loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts" xlink:label="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts" xlink:to="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts_lbl" xml:lang="en-US">Represents the amount of financial cost of post-employment benefits and abandonment costs.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts_lbl" xml:lang="en-US">Financial cost of post-employment benefits and abandonment costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FinancialCostOfPostemploymentBenefitsAndAbandonmentCosts_lbl" xml:lang="en-US">Finance cost of post-employment benefits and abandonment costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Cash flows from (used in) exploration for and evaluation of mineral resources, classified as operating activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInExplorationForAndEvaluationOfMineralResourcesClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Write off exploratory assets and dry wells</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:to="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_lbl" xml:lang="en-US">Adjustments for losses (gains) on disposal of non-current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_lbl" xml:lang="en-US">(Gain) loss on disposal of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:label="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:to="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Adjustments for gain (loss) on acquisition of investments in subsidiaries, joint ventures and associates to reconcile profit (loss) to net cash flow from (used in) operating activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Adjustments for gain loss on Acquisition of investments in subsidiaries, joint ventures and associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Profit on business combinations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdjustmentsForGainLossOnAcquisitionOfInvestmentsInSubsidiariesJointVenturesAndAssociates_lbl" xml:lang="en-US">Adjustments for gain (loss) on acquisition of investments in subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields" xlink:label="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields" xlink:to="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields_lbl" xml:lang="en-US">Adjustments for impairment losses (reversal of impairment losses) on oil fields recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields_lbl" xml:lang="en-US">Adjustments For Impairment Losses (Reversal of Impairment Losses) of Oil Fields</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesOfOilFields_lbl" xml:lang="en-US">Profit on reversal of fields</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Impairment (recovery) loss of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_lbl" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_lbl" xml:lang="en-US">Impairment loss of current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:to="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" xml:lang="en-US">Adjustments for fair value losses (gains)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" xml:lang="en-US">Gain on fair value adjustment of financial assets and interest</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GainLossOnHedgingTransactionsWithDerivatives" xlink:label="ec_GainLossOnHedgingTransactionsWithDerivatives" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GainLossOnHedgingTransactionsWithDerivatives" xlink:to="ec_GainLossOnHedgingTransactionsWithDerivatives_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GainLossOnHedgingTransactionsWithDerivatives_lbl" xml:lang="en-US">The amount of gain (loss) on hedging transactions with derivatives.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GainLossOnHedgingTransactionsWithDerivatives_lbl" xml:lang="en-US">Gain (Loss) On Hedging Transactions With Derivatives</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_GainLossOnHedgingTransactionsWithDerivatives_lbl" xml:lang="en-US">(Gain) loss on hedging transactions with derivatives</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale" xlink:label="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale" xlink:to="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale_lbl" xml:lang="en-US">Adjustments for gain (loss) on disposals of assets held for sale to reconcile profit (loss) to net cash flow from (used in) operating activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale_lbl" xml:lang="en-US">Adjustments for gain loss on disposals, assets held for sale</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_AdjustmentsForGainLossOnDisposalsAssetsHeldForSale_lbl" xml:lang="en-US">Loss on the sale of assets held for sale</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectiveness" xlink:label="ifrs-full_GainLossOnHedgeIneffectiveness" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnHedgeIneffectiveness" xlink:to="ifrs-full_GainLossOnHedgeIneffectiveness_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnHedgeIneffectiveness_lbl" xml:lang="en-US">Gain (loss) on hedge ineffectiveness</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainLossOnHedgeIneffectiveness_lbl" xml:lang="en-US">Hedge ineffectiveness</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForRealisedForeignExchangeLossesGains" xlink:label="ec_AdjustmentsForRealisedForeignExchangeLossesGains" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForRealisedForeignExchangeLossesGains" xlink:to="ec_AdjustmentsForRealisedForeignExchangeLossesGains_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForRealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Adjustments for realised foreign exchange losses (gains) to reconcile profit (loss) to net cash flow from (used in) operating activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForRealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Adjustments for realised foreign exchange losses gains</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AdjustmentsForRealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Realized (gain) loss on foreign exchange cash flow hedges</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvisionsAndContingenciesInOperatingActivities" xlink:label="ec_ProvisionsAndContingenciesInOperatingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvisionsAndContingenciesInOperatingActivities" xlink:to="ec_ProvisionsAndContingenciesInOperatingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvisionsAndContingenciesInOperatingActivities_lbl" xml:lang="en-US">This represents provisions and contingencies adjustment to operating activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvisionsAndContingenciesInOperatingActivities_lbl" xml:lang="en-US">Provisions and Contingencies in Operating Activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvisionsAndContingenciesInOperatingActivities_lbl" xml:lang="en-US">Movements in provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract" xlink:label="ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract" xlink:to="ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US">Net changes in operating assets and liabilities [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NetChangesInOperatingAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US">Net change in operational assets and liabilities:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl" xml:lang="en-US">Adjustments for decrease (increase) in trade and other receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" xml:lang="en-US">Adjustments for decrease (increase) in inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" xml:lang="en-US">Inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:to="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_lbl" xml:lang="en-US">Adjustments for increase (decrease) in trade accounts payable</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" xlink:to="ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables_lbl" xml:lang="en-US">Adjustments for increase (decrease) in other operating payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables_lbl" xml:lang="en-US">Tax assets and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:to="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_lbl" xml:lang="en-US">Adjustments for increase (decrease) in employee benefit liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_lbl" xml:lang="en-US">Provisions for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInProvisionsAndContingencies" xlink:label="ec_IncreaseDecreaseInProvisionsAndContingencies" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInProvisionsAndContingencies" xlink:to="ec_IncreaseDecreaseInProvisionsAndContingencies_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInProvisionsAndContingencies_lbl" xml:lang="en-US">This represents provisions and contingencies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInProvisionsAndContingencies_lbl" xml:lang="en-US">Increase (Decrease) in Provisions and Contingencies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseInProvisionsAndContingencies_lbl" xml:lang="en-US">Provisions and contingencies</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities" xlink:label="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities" xlink:to="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities_lbl" xml:lang="en-US">Adjustments for decrease (increase) in other assets (liabilities) to reconcile profit (loss) to net cash flow from (used in) operating activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities_lbl" xml:lang="en-US">Adjustments for decrease increase in other assets and liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AdjustmentsForDecreaseIncreaseInOtherAssetsAndLiabilities_lbl" xml:lang="en-US">Other assets and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Income taxes paid (refund), classified as operating activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Income tax paid</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">Cash flow from investing activities:</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod" xlink:label="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod" xlink:to="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Amount of proceeds from investment in joint ventures.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Proceeds from investments accounted for using equity method</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProceedsFromInvestmentsAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Investment in joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:label="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:to="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Acquisition of subsidiaries, net of cash acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Net cash paid</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired" xlink:to="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xml:lang="en-US">The aggregate cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xml:lang="en-US">Ifrs Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xml:lang="en-US">Consideration paid in business combination, net of cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PaymentsToAcquireProductiveAssetsInBusinessCombination" xlink:label="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination" xlink:to="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination_lbl" xml:lang="en-US">The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination_lbl" xml:lang="en-US">Payments to Acquire Productive Assets in Business Combination</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination_lbl" xml:lang="en-US">Consideration paid for the acquisition of assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PaymentsToAcquireProductiveAssetsInBusinessCombination_lbl" xml:lang="en-US">Consideration paid for the acquisition of assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Investment in property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfExplorationAndEvaluationAssets" xlink:label="ifrs-full_PurchaseOfExplorationAndEvaluationAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfExplorationAndEvaluationAssets" xlink:to="ifrs-full_PurchaseOfExplorationAndEvaluationAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfExplorationAndEvaluationAssets_lbl" xml:lang="en-US">Purchase of exploration and evaluation assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PurchaseOfExplorationAndEvaluationAssets_lbl" xml:lang="en-US">Investment in natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Purchase of intangible assets, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Acquisitions of intangibles</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets" xlink:label="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets" xlink:to="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets_lbl" xml:lang="en-US">The cash inflow or (outflow) from sale or purchase of other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets_lbl" xml:lang="en-US">Proceeds From payment for sale or purchase of other financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ProceedsFromPaymentForSaleOrPurchaseOfOtherFinancialAssets_lbl" xml:lang="en-US">Proceeds from sales of other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Interest received, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Interests received</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:label="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:to="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Dividends received, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Dividends received</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:to="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xml:lang="en-US">Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xml:lang="en-US">Proceeds from sales of assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US">Net cash used in investment activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Cash flow from financing activities:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Proceeds from borrowings, classified as financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Proceeds from loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Repayments of borrowings, classified as financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Repayment of loans and borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Repayment of loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="ifrs-full_InterestPaidClassifiedAsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Interest paid, classified as financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Interest payments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Interest payments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashOutflowForLeases" xlink:label="ifrs-full_CashOutflowForLeases" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashOutflowForLeases" xlink:to="ifrs-full_CashOutflowForLeases_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashOutflowForLeases_lbl" xml:lang="en-US">Cash outflow for leases</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_CashOutflowForLeases_lbl" xml:lang="en-US">Lease payments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RestitutionOfCapitalToMinorityShareholders" xlink:label="ec_RestitutionOfCapitalToMinorityShareholders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RestitutionOfCapitalToMinorityShareholders" xlink:to="ec_RestitutionOfCapitalToMinorityShareholders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RestitutionOfCapitalToMinorityShareholders_lbl" xml:lang="en-US">The amount of restitution of capital to minority shareholders.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RestitutionOfCapitalToMinorityShareholders_lbl" xml:lang="en-US">Restitution of Capital to Minority Shareholders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_RestitutionOfCapitalToMinorityShareholders_lbl" xml:lang="en-US">Payment of restitution of equity to minority shareholders</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:to="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Dividends paid, classified as financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Dividends paid</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Dividends paid</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US">Net cash used in financing activities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl" xml:lang="en-US">Exchange difference in cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl" xml:lang="en-US">Increase (decrease) in cash and cash equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl" xml:lang="en-US">Net increase (decrease) in cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfReportingEntityAbstract" xlink:label="ec_DisclosureOfReportingEntityAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfReportingEntityAbstract" xlink:to="ec_DisclosureOfReportingEntityAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfReportingEntityAbstract_lbl" xml:lang="en-US">Reporting entity</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfReportingEntityTextBlock" xlink:label="ec_DisclosureOfReportingEntityTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfReportingEntityTextBlock" xlink:to="ec_DisclosureOfReportingEntityTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfReportingEntityTextBlock_lbl" xml:lang="en-US">The disclosure of the entity's business and share holdings structure.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfReportingEntityTextBlock_lbl" xml:lang="en-US">Disclosure of reporting entity [text block] [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfReportingEntityTextBlock_lbl" xml:lang="en-US">Reporting entity</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfBasisOfPresentationAbstract" xlink:label="ec_DisclosureOfBasisOfPresentationAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfBasisOfPresentationAbstract" xlink:to="ec_DisclosureOfBasisOfPresentationAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfBasisOfPresentationAbstract_lbl" xml:lang="en-US">Basis for preparation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" xlink:label="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" xlink:to="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_lbl" xml:lang="en-US">Reclassifications</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_lbl" xml:lang="en-US">Basis for preparation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfSignificantEstimatesAndAccountingJudgmentsAbstract" xlink:label="ec_DisclosureOfSignificantEstimatesAndAccountingJudgmentsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfSignificantEstimatesAndAccountingJudgmentsAbstract" xlink:to="ec_DisclosureOfSignificantEstimatesAndAccountingJudgmentsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfSignificantEstimatesAndAccountingJudgmentsAbstract_lbl" xml:lang="en-US">Material accounting judgments and estimates</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:label="ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_lbl" xml:lang="en-US">Disclosure of accounting judgements and estimates [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_lbl" xml:lang="en-US">Material accounting judgments and estimates</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccountingPoliciesAbstract" xlink:label="ec_DisclosureOfAccountingPoliciesAbstract" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccountingPoliciesAbstract_lbl" xml:lang="en-US">Accounting policies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl" xml:lang="en-US">Disclosure of material accounting policy information [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl" xml:lang="en-US">Accounting policies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract_lbl" xml:lang="en-US">New standards and regulatory changes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_lbl" xml:lang="en-US">Disclosure of expected impact of initial application of new standards or interpretations [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_lbl" xml:lang="en-US">New standards and regulatory changes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsAbstract" xlink:label="ifrs-full_CashAndCashEquivalentsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="ifrs-full_CashAndCashEquivalentsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashAndCashEquivalentsAbstract_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" xlink:label="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" xlink:to="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_lbl" xml:lang="en-US">Disclosure of cash and cash equivalents [text block].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherReceivablesAbstract" xlink:label="ifrs-full_TradeAndOtherReceivablesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherReceivablesAbstract" xlink:to="ifrs-full_TradeAndOtherReceivablesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherReceivablesAbstract_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:label="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:to="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_lbl" xml:lang="en-US">Disclosure of trade and other receivables [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInventoriesNetAbstract" xlink:label="ec_DisclosureOfInventoriesNetAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInventoriesNetAbstract" xlink:to="ec_DisclosureOfInventoriesNetAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInventoriesNetAbstract_lbl" xml:lang="en-US">Inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="ifrs-full_DisclosureOfInventoriesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory_lbl" xml:lang="en-US">Disclosure of inventories [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory_lbl" xml:lang="en-US">Inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:label="ifrs-full_DisclosureOfFinancialAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsAbstract" xlink:to="ifrs-full_DisclosureOfFinancialAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsAbstract_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfFinancialAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfFinancialAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of financial assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFinancialAssetsExplanatory_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfTaxesAbstract" xlink:label="ec_DisclosureOfTaxesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfTaxesAbstract" xlink:to="ec_DisclosureOfTaxesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfTaxesAbstract_lbl" xml:lang="en-US">Taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:to="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl" xml:lang="en-US">Disclosure of income tax [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl" xml:lang="en-US">Taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfOtherAssetsAbstract" xlink:label="ec_DisclosureOfOtherAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfOtherAssetsAbstract" xlink:to="ec_DisclosureOfOtherAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfOtherAssetsAbstract_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of other assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsAbstract" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsAbstract_lbl" xml:lang="en-US">Business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Disclosure of business combinations [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesAbstract" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesAbstract" xlink:to="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesAbstract_lbl" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:label="ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:to="ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_lbl" xml:lang="en-US">Disclosure of investments accounted for using equity method [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_lbl" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:label="ifrs-full_PropertyPlantAndEquipmentAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:to="ifrs-full_PropertyPlantAndEquipmentAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfNaturalAndEnvironmentalResourcesAbstract" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfNaturalAndEnvironmentalResourcesAbstract" xlink:to="ec_DisclosureOfNaturalAndEnvironmentalResourcesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesAbstract_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock" xlink:to="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">The entire disclosure for natural and environmental resources.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">Disclosure of natural and environmental resources explanatory [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract" xlink:to="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsAbstract_lbl" xml:lang="en-US">Right-of-use assets and lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory_lbl" xml:lang="en-US">Right-of-use assets and lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsAbstract" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsAbstract_lbl" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of intangible assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsExplanatory_lbl" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfImpairmentOfNoncurrentAssetsAbstract" xlink:label="ec_DisclosureOfImpairmentOfNoncurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfImpairmentOfNoncurrentAssetsAbstract" xlink:to="ec_DisclosureOfImpairmentOfNoncurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfImpairmentOfNoncurrentAssetsAbstract_lbl" xml:lang="en-US">Impairment of long-term assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of impairment of assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_lbl" xml:lang="en-US">Impairment of long-term assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfGoodwillAbstract" xlink:label="ec_DisclosureOfGoodwillAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfGoodwillAbstract" xlink:to="ec_DisclosureOfGoodwillAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfGoodwillAbstract_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory" xlink:label="ifrs-full_DisclosureOfGoodwillExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfGoodwillExplanatory" xlink:to="ifrs-full_DisclosureOfGoodwillExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfGoodwillExplanatory_lbl" xml:lang="en-US">Disclosure of goodwill [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfGoodwillExplanatory_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfLoansAndBorrowingsAbstract" xlink:label="ec_DisclosureOfLoansAndBorrowingsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfLoansAndBorrowingsAbstract" xlink:to="ec_DisclosureOfLoansAndBorrowingsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfLoansAndBorrowingsAbstract_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xml:lang="en-US">Disclosure of borrowings [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesAbstract" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesAbstract" xlink:to="ifrs-full_TradeAndOtherPayablesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:to="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" xml:lang="en-US">Disclosure of trade and other payables [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:to="ifrs-full_DisclosureOfDefinedBenefitPlansAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansAbstract_lbl" xml:lang="en-US">Provisions for employees' benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:label="ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:to="ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_lbl" xml:lang="en-US">Disclosure of employee benefits [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_lbl" xml:lang="en-US">Provisions for employees' benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccruedLiabilitiesAndProvisionsAbstract" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccruedLiabilitiesAndProvisionsAbstract" xlink:to="ec_DisclosureOfAccruedLiabilitiesAndProvisionsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsAbstract_lbl" xml:lang="en-US">Accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:label="ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_lbl" xml:lang="en-US">Disclosure of accrued expenses and other liabilities [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_lbl" xml:lang="en-US">Accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfEquityAbstract" xlink:label="ec_DisclosureOfEquityAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfEquityAbstract" xlink:to="ec_DisclosureOfEquityAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfEquityAbstract_lbl" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:to="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" xml:lang="en-US">Disclosure of share capital, reserves and other equity interest [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueAbstract" xlink:label="ifrs-full_RevenueAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueAbstract" xlink:to="ifrs-full_RevenueAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueAbstract_lbl" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRevenueExplanatory" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRevenueExplanatory" xlink:to="ifrs-full_DisclosureOfRevenueExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory_lbl" xml:lang="en-US">Disclosure of revenue [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory_lbl" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfCostOfSalesBeforeImpairmentOfNoncurrentAssetsAbstract" xlink:label="ec_DisclosureOfCostOfSalesBeforeImpairmentOfNoncurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfCostOfSalesBeforeImpairmentOfNoncurrentAssetsAbstract" xlink:to="ec_DisclosureOfCostOfSalesBeforeImpairmentOfNoncurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfCostOfSalesBeforeImpairmentOfNoncurrentAssetsAbstract_lbl" xml:lang="en-US">Cost of sales</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCostOfSalesExplanatory" xlink:label="ifrs-full_DisclosureOfCostOfSalesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCostOfSalesExplanatory" xlink:to="ifrs-full_DisclosureOfCostOfSalesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCostOfSalesExplanatory_lbl" xml:lang="en-US">Disclosure of cost of sales [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfCostOfSalesExplanatory_lbl" xml:lang="en-US">Cost of sales</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:label="ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:to="ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract_lbl" xml:lang="en-US">Administrative, operative, and project expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" xlink:label="ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_lbl" xml:lang="en-US">Disclosure of general and administrative expense [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_lbl" xml:lang="en-US">Administrative, operative, and project expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfOtherOperatingIncomeAndExpensesNetAbstract" xlink:label="ec_DisclosureOfOtherOperatingIncomeAndExpensesNetAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfOtherOperatingIncomeAndExpensesNetAbstract" xlink:to="ec_DisclosureOfOtherOperatingIncomeAndExpensesNetAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfOtherOperatingIncomeAndExpensesNetAbstract_lbl" xml:lang="en-US">Other operating income (expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:label="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_lbl" xml:lang="en-US">Disclosure of other operating income (expense) [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_lbl" xml:lang="en-US">Other operating income (expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfFinancialResultNetAbstract" xlink:label="ec_DisclosureOfFinancialResultNetAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfFinancialResultNetAbstract" xlink:to="ec_DisclosureOfFinancialResultNetAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfFinancialResultNetAbstract_lbl" xml:lang="en-US">Financial result</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl" xml:lang="en-US">Disclosure of finance income (cost) [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl" xml:lang="en-US">Financial result</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfFinancialRiskManagementAbstract" xlink:label="ec_DisclosureOfFinancialRiskManagementAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfFinancialRiskManagementAbstract" xlink:to="ec_DisclosureOfFinancialRiskManagementAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfFinancialRiskManagementAbstract_lbl" xml:lang="en-US">Risk management</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:to="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" xml:lang="en-US">Disclosure of financial risk management [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" xml:lang="en-US">Risk management</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract_lbl" xml:lang="en-US">Related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl" xml:lang="en-US">Disclosure of related party [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl" xml:lang="en-US">Related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointOperationsAbstract" xlink:label="ifrs-full_DisclosureOfJointOperationsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfJointOperationsAbstract" xlink:to="ifrs-full_DisclosureOfJointOperationsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointOperationsAbstract_lbl" xml:lang="en-US">Joint operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointOperationsExplanatory" xlink:label="ifrs-full_DisclosureOfJointOperationsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfJointOperationsExplanatory" xlink:to="ifrs-full_DisclosureOfJointOperationsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointOperationsExplanatory_lbl" xml:lang="en-US">Disclosure of joint operations [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfJointOperationsExplanatory_lbl" xml:lang="en-US">Joint operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="ifrs-full_DisclosureOfOperatingSegmentsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsAbstract_lbl" xml:lang="en-US">Business segment information</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:label="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:to="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_lbl" xml:lang="en-US">Disclosure of entity's operating segments [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_lbl" xml:lang="en-US">Business segment information</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:to="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract_lbl" xml:lang="en-US">Subsequent and relevant events</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:to="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_lbl" xml:lang="en-US">Disclosure of events after reporting period [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_lbl" xml:lang="en-US">Subsequent and relevant events</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract" xlink:to="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesAbstract_lbl" xml:lang="en-US">Exhibit 1 - Consolidated subsidiaries, associates, and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock" xlink:to="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">The entire disclosure for interests in subsidiaries, associates and joint ventures.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">Disclosure Of Interests In Subsidiaries, Associates And Joint Ventures [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">Exhibit 1 - Consolidated subsidiaries, associates, and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract" xlink:label="ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract" xlink:to="ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfSubsidiariesAssociatesAndJointVenturesAbstract_lbl" xml:lang="en-US">Exhibit 2 - Consolidated subsidiaries, associates, and joint ventures in Interconexion Electrica SA ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock" xlink:to="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock_lbl" xml:lang="en-US">The entire disclosure for interests in subsidiaries, associates and joint ventures Interconexin Elctrica S.A. ESP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock_lbl" xml:lang="en-US">Disclosure Of Interests In Subsidiaries Associates And Joint Ventures Interconexin ElctricaS.a. Esp Text Block</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfInterestsInSubsidiariesAssociatesAndJointVenturesInterconexinElctricaS.a.EspTextBlock_lbl" xml:lang="en-US">Exhibit 2 - Consolidated subsidiaries, associates, and joint ventures in Interconexion Electrica SA ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract" xlink:label="ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract" xlink:to="ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract_lbl" xml:lang="en-US">Disclosure of conditions of the most significant loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfConditionsOfTheMostSignificantLoansAbstract_lbl" xml:lang="en-US">Exhibit 3 - Conditions of the most significant debt</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfSignificantLoansTextBlock" xlink:label="ec_DisclosureOfSignificantLoansTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfSignificantLoansTextBlock" xlink:to="ec_DisclosureOfSignificantLoansTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfSignificantLoansTextBlock_lbl" xml:lang="en-US">Disclosure of significant loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfSignificantLoansTextBlock_lbl" xml:lang="en-US">Disclosure of significant loans [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfSignificantLoansTextBlock_lbl" xml:lang="en-US">Exhibit 3 - Conditions of the most significant debt</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfServiceConcessionArrangementsAbstract" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfServiceConcessionArrangementsAbstract" xlink:to="ifrs-full_DisclosureOfServiceConcessionArrangementsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsAbstract_lbl" xml:lang="en-US">Exhibit 4. Quantitative information of concession services contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory" xlink:to="ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory_lbl" xml:lang="en-US">Disclosure of service concession arrangements [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory_lbl" xml:lang="en-US">Exhibit 4. Quantitative information of concession services contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExplorationForAndEvaluationOfMineralResourcesAbstract" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourcesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExplorationForAndEvaluationOfMineralResourcesAbstract" xlink:to="ec_ExplorationForAndEvaluationOfMineralResourcesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourcesAbstract_lbl" xml:lang="en-US">Supplemental information on oil and gas producing activities (unaudited)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of exploration and evaluation assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfExplorationAndEvaluationAssetsExplanatory_lbl" xml:lang="en-US">Supplemental information on oil and gas producing activities (unaudited)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for financial instruments [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:to="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" xml:lang="en-US">Description of accounting policy for determining components of cash and cash equivalents [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for financial assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_lbl" xml:lang="en-US">Financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_lbl" xml:lang="en-US">Description of accounting policy for financial liabilities [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_lbl" xml:lang="en-US">Financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_lbl" xml:lang="en-US">Description of accounting policy for derivative financial instruments and hedging [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_lbl" xml:lang="en-US">Derivative financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_lbl" xml:lang="en-US">Description of accounting policy for hedging [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_lbl" xml:lang="en-US">Hedging operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for cash flows [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_lbl" xml:lang="en-US">Cash flow hedge</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfAccountingPolicyForHedgeOfNetInvestmentsInForeignOperation" xlink:label="ec_DescriptionOfAccountingPolicyForHedgeOfNetInvestmentsInForeignOperation" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfAccountingPolicyForHedgeOfNetInvestmentsInForeignOperation_lbl" xml:lang="en-US">The description of the entity's accounting policy for hedge of a net investment in a foreign operation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfAccountingPolicyForHedgeOfNetInvestmentsInForeignOperation_lbl" xml:lang="en-US">Description of accounting policy for hedge of net investments in foreign operation [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfAccountingPolicyForHedgeOfNetInvestmentsInForeignOperation_lbl" xml:lang="en-US">Hedge of net investment in a foreign operation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xml:lang="en-US">Description of accounting policy for fair value measurement [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xml:lang="en-US">Fair value hedge</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xml:lang="en-US">Description of accounting policy for measuring inventories [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xml:lang="en-US">Inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory_lbl" xml:lang="en-US">Description of accounting policy for transactions with related parties [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory_lbl" xml:lang="en-US">Related parties</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_lbl" xml:lang="en-US">Description of accounting policy for investment in associates [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_lbl" xml:lang="en-US">Investments in associates</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures_lbl" xml:lang="en-US">Description of accounting policy for investments in joint ventures [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures_lbl" xml:lang="en-US">Joint ventures</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfAccountingPolicyForjointOperations_lbl" xml:lang="en-US">The description of the entity's accounting policy for joint operations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfAccountingPolicyForjointOperations_lbl" xml:lang="en-US">Description of accounting policy for joint operations [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfAccountingPolicyForjointOperations_lbl" xml:lang="en-US">Joint operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_lbl" xml:lang="en-US">Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_lbl" xml:lang="en-US">Non-current assets held for sale</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Description of accounting policy for property, plant and equipment [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures_lbl" xml:lang="en-US">Description of accounting policy for exploration and evaluation expenditures [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for borrowing costs [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBorrowingCostsExplanatory_lbl" xml:lang="en-US">Capitalization of borrowing costs</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" xml:lang="en-US">Description of accounting policy for intangible assets other than goodwill [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutServiceConcessionArrangementsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutServiceConcessionArrangementsExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutServiceConcessionArrangementsExplanatory_lbl" xml:lang="en-US">Disclosure of detailed information about service concession arrangements [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutServiceConcessionArrangementsExplanatory_lbl" xml:lang="en-US">Service concession agreements</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" xml:lang="en-US">Description of accounting policy for goodwill [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xml:lang="en-US">Description of accounting policy for leases [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xml:lang="en-US">Leases</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for impairment of assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_lbl" xml:lang="en-US">Impairment of long-term non-monetary assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for provisions [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_lbl" xml:lang="en-US">Provisions and contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfAccountingPolicyForIncomeTaxAndOtherTaxes" xlink:label="ec_DescriptionOfAccountingPolicyForIncomeTaxAndOtherTaxes" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfAccountingPolicyForIncomeTaxAndOtherTaxes_lbl" xml:lang="en-US">The description of the entity's accounting policy for income tax and other taxes.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfAccountingPolicyForIncomeTaxAndOtherTaxes_lbl" xml:lang="en-US">Description of accounting policy for income tax and other taxes [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfAccountingPolicyForIncomeTaxAndOtherTaxes_lbl" xml:lang="en-US">Income tax and other taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xml:lang="en-US">Description of accounting policy for income tax [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xml:lang="en-US">Current income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_lbl" xml:lang="en-US">Description of accounting policy for deferred income tax [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_lbl" xml:lang="en-US">Deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory_lbl" xml:lang="en-US">Description of accounting policy for taxes other than income tax [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory_lbl" xml:lang="en-US">Other taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for employee benefits [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_lbl" xml:lang="en-US">Employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xml:lang="en-US">Description of accounting policy for recognition of revenue [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" xml:lang="en-US">Description of accounting policy for expenses [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" xml:lang="en-US">Costs and expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for finance income and costs [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_lbl" xml:lang="en-US">Finance income (expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl" xml:lang="en-US">Description of accounting policy for segment reporting [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl" xml:lang="en-US">Business segment information</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Description of accounting policy for business combinations [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Business combinations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock" xlink:label="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock" xlink:to="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock_lbl" xml:lang="en-US">The description of the entity's material accounting policy information for royalties.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock_lbl" xml:lang="en-US">Description Of Accounting Policy For Royalties [Policy Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DescriptionOfAccountingPolicyForRoyaltiesPolicyTextBlock_lbl" xml:lang="en-US">Royalties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_lbl" xml:lang="en-US">Disclosure of depreciation and amortisation expense [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_lbl" xml:lang="en-US">Schedule of depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsStatementTable" xlink:label="ec_IfrsStatementTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsStatementTable" xlink:to="ec_IfrsStatementTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsStatementTable_lbl" xml:lang="en-US">Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsStatementTable_lbl" xml:lang="en-US">IFRS Statement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CreditQualityAxis" xlink:label="ec_CreditQualityAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CreditQualityAxis" xlink:to="ec_CreditQualityAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CreditQualityAxis_lbl" xml:lang="en-US">credit quality [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CreditQualityDomain" xlink:label="ec_CreditQualityDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CreditQualityDomain" xlink:to="ec_CreditQualityDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CreditQualityDomain_lbl" xml:lang="en-US">credit quality [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CreditQualityOfIssuersOfInvestmentsMember" xlink:label="ec_CreditQualityOfIssuersOfInvestmentsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CreditQualityOfIssuersOfInvestmentsMember" xlink:to="ec_CreditQualityOfIssuersOfInvestmentsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CreditQualityOfIssuersOfInvestmentsMember_lbl" xml:lang="en-US">Credit quality of issuers of investments [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CreditQualityOfIssuersOfInvestmentsMember_lbl" xml:lang="en-US">Credit quality of issuers of investments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsStatementLineItems" xlink:label="ec_IfrsStatementLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsStatementLineItems" xlink:to="ec_IfrsStatementLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsStatementLineItems_lbl" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsStatementLineItems_lbl" xml:lang="en-US">IFRS Statement [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IfrsStatementLineItems_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents" xlink:label="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents" xlink:to="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents_lbl" xml:lang="en-US">The disclosure of detailed information about Cash and cash equivalents.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents_lbl" xml:lang="en-US">Disclosure of detailed information about Cash and cash equivalents [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCashAndCashEquivalents_lbl" xml:lang="en-US">Schedule of Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:to="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl" xml:lang="en-US">Disclosure of external credit grades [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl" xml:lang="en-US">Schedule of other financial assets measured at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables" xlink:label="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables" xlink:to="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables_lbl" xml:lang="en-US">The disclosure of detailed information about trade and other receivables.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables_lbl" xml:lang="en-US">Disclosure of detailed information about trade and other receivables [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutTradeAndOtherReceivables_lbl" xml:lang="en-US">Schedule of trade and other receivables, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Schedule of account receivable from the fuel price stabilization fund</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:label="ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:to="ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_lbl" xml:lang="en-US">Disclosure of allowance for credit losses [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_lbl" xml:lang="en-US">Schedule of changes in the allowance for doubtful accounts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReconciliationForChangesInConcessionAssetsTableTextBlock" xlink:label="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock" xlink:to="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock_lbl" xml:lang="en-US">Tabular disclosure for changes in concession assets during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock_lbl" xml:lang="en-US">Reconciliation for Changes in Concession Assets [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ReconciliationForChangesInConcessionAssetsTableTextBlock_lbl" xml:lang="en-US">Schedule of movements of ISA ENERGA's contractual asset in Brazil, associated with the RBSE</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about inventories.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about inventories [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutInventoriesTextBlock_lbl" xml:lang="en-US">Schedule of inventories</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:label="ifrs-full_DisclosureOfOtherProvisionsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:to="ifrs-full_DisclosureOfOtherProvisionsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherProvisionsExplanatory_lbl" xml:lang="en-US">Disclosure of other provisions [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfOtherProvisionsExplanatory_lbl" xml:lang="en-US">Schedule of changes of the allowances for losses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherFinancialAssetsTable" xlink:label="ec_OtherFinancialAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherFinancialAssetsTable" xlink:to="ec_OtherFinancialAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherFinancialAssetsTable_lbl" xml:lang="en-US">Other financial assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis" xlink:label="ifrs-full_ClassesOfFinancialAssetsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="ifrs-full_ClassesOfFinancialAssetsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialAssetsAxis_lbl" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain" xlink:label="ifrs-full_ClassesOfFinancialAssetsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="ifrs-full_ClassesOfFinancialAssetsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialAssetsDomain_lbl" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherFinancialAssetsMember" xlink:label="ec_OtherFinancialAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherFinancialAssetsMember" xlink:to="ec_OtherFinancialAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherFinancialAssetsMember_lbl" xml:lang="en-US">Other financial assets [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherFinancialAssetsMember_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherFinancialAssetsLineItems" xlink:label="ec_OtherFinancialAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherFinancialAssetsLineItems" xlink:to="ec_OtherFinancialAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Other financial assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about other financial asset [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherFinancialAssetTextBlock_lbl" xml:lang="en-US">Schedule of other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock" xlink:label="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock" xlink:to="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock_lbl" xml:lang="en-US">The disclosure of detailed information about maturity analysis of other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Maturity Analysis Of other Financial Assets TextBlock</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutMaturityAnalysisOfOtherFinancialAssetsTextblock_lbl" xml:lang="en-US">Schedule of maturities of other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of fair value measurement of assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_lbl" xml:lang="en-US">Schedule of other financial assets recognized at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about movement of equity investment of other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Movement Of Equity Investment [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfEquityInvestmentTableTextBlock_lbl" xml:lang="en-US">Schedule of movement of equity investments in level 3</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock" xlink:label="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock" xlink:to="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock_lbl" xml:lang="en-US">The disclosure of detailed information about current tax assets and liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Current Tax Assets And Liabilities TextBlock</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCurrentTaxAssetsAndLiabilitiesTextblock_lbl" xml:lang="en-US">Schedule of current tax assets and tax liabilities and movements of deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Disclosureofincometaxratetabletextblock" xlink:label="ec_Disclosureofincometaxratetabletextblock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Disclosureofincometaxratetabletextblock" xlink:to="ec_Disclosureofincometaxratetabletextblock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Disclosureofincometaxratetabletextblock_lbl" xml:lang="en-US">The tabular disclosure of income tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Disclosureofincometaxratetabletextblock_lbl" xml:lang="en-US">Disclosure Of Income Tax Rate [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Disclosureofincometaxratetabletextblock_lbl" xml:lang="en-US">Schedule of income tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about income tax expenses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about income tax Expenses [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxExpensesTextBlock_lbl" xml:lang="en-US">Schedule of income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock" xlink:to="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock_lbl" xml:lang="en-US">The disclosure of detailed information about Reconciliation of the expected income tax expense -benefit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Reconciliation Of Expected Income Tax Expense Benefit [TextBlock]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfExpectedIncomeTaxExpenseBenefitTextblock_lbl" xml:lang="en-US">Schedule of reconciliation of the income tax expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:to="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xml:lang="en-US">Disclosure of deferred taxes [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xml:lang="en-US">Schedule of deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:to="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_lbl" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_lbl" xml:lang="en-US">Schedule of deferred income tax assets and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about movement of deferred income tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Movement Of Deferred Income Tax [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDeferredIncomeTaxTextBlock_lbl" xml:lang="en-US">Schedule of movements of deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about breakdown of other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Break down Of Other Comprehensive Income [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutBreakDownOfOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">Schedule of income tax recorded in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAdjustedIncomeTaxRate" xlink:label="ec_DisclosureOfAdjustedIncomeTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAdjustedIncomeTaxRate" xlink:to="ec_DisclosureOfAdjustedIncomeTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfAdjustedIncomeTaxRate_lbl" xml:lang="en-US">The tabular disclosure of adjusted rate of income tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAdjustedIncomeTaxRate_lbl" xml:lang="en-US">Disclosure Of Adjusted Income Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfAdjustedIncomeTaxRate_lbl" xml:lang="en-US">Schedule of adjusted income tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about other assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about other assets [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutOtherAssetsTextBlock_lbl" xml:lang="en-US">Schedule of other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Disclosure of detailed information about business combination [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Schedule of identifiable assets acquired and liabilities assumed</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInvestmentEntitiesExplanatory" xlink:label="ifrs-full_DisclosureOfInvestmentEntitiesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInvestmentEntitiesExplanatory" xlink:to="ifrs-full_DisclosureOfInvestmentEntitiesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInvestmentEntitiesExplanatory_lbl" xml:lang="en-US">Disclosure of investment entities [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInvestmentEntitiesExplanatory_lbl" xml:lang="en-US">Schedule of investment entities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about changes in investments in subsidiaries, associates and joint ventures.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about changes in investments in subsidiaries, associates and joint ventures [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutChangesInInvestmentsInSubsidiariesAssociatesAndJointVenturesTextBlock_lbl" xml:lang="en-US">Schedule of movement of investments in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" xlink:to="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_lbl" xml:lang="en-US">Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_lbl" xml:lang="en-US">Schedule of breakdown of assets, liabilities and results of the main investments in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutReconciliationOfInvestmentsInJointVenturesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfInvestmentsInJointVenturesTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfInvestmentsInJointVenturesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about reconciliation of investments in joint ventures.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfInvestmentsInJointVenturesTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Reconciliation Of Investments In Joint Ventures [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutReconciliationOfInvestmentsInJointVenturesTextBlock_lbl" xml:lang="en-US">Schedule of reconciliation of equity of the significant investments and carrying amount of investments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfPropertyPlantAndEquipmentAndItsDepreciationAndImpairmentTextBlock" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentAndItsDepreciationAndImpairmentTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentAndItsDepreciationAndImpairmentTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the changes in property, plant and equipment and its depreciation and impairment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentAndItsDepreciationAndImpairmentTextBlock_lbl" xml:lang="en-US">Disclosure of property, plant and equipment and its depreciation and impairment [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentAndItsDepreciationAndImpairmentTextBlock_lbl" xml:lang="en-US">Schedule of plant and equipment and depreciation and impairment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutNaturalAndEnvironmentalResourcesExplanatoryTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutNaturalAndEnvironmentalResourcesExplanatoryTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about natural and environmental resources.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">Disclosure of detailed Information about natural and environmental resources explanatory [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutNaturalAndEnvironmentalResourcesExplanatoryTextBlock_lbl" xml:lang="en-US">Schedule of detailed information about natural and environmental</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about classification by age from completion date of the suspended exploratory wells.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about classification by age from completion date of the suspended exploratory wells [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutClassificationByAgeFromCompletionDateOfSuspendedExploratoryWellsTextBlock_lbl" xml:lang="en-US">Schedule of detailed information about classification by age from completion date of suspended exploratory wells</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock" xlink:label="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock" xlink:to="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock_lbl" xml:lang="en-US">Tabular disclosure for movement of right-of-use assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock_lbl" xml:lang="en-US">Disclosure of Movement of Right of Use Assets [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfMovementOfRightOfUseAssetsTableTextBlock_lbl" xml:lang="en-US">Schedule of movement of right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of detailed information about intangible assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_lbl" xml:lang="en-US">Schedule of intangibles and their amortizations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentOfLongTermAssetsTable" xlink:label="ec_ImpairmentOfLongTermAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentOfLongTermAssetsTable" xlink:to="ec_ImpairmentOfLongTermAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentOfLongTermAssetsTable_lbl" xml:lang="en-US">Impairment of non-financial assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="ifrs-full_SegmentsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentsAxis" xlink:to="ifrs-full_SegmentsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentsAxis_lbl" xml:lang="en-US">Segments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="ifrs-full_SegmentsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentsDomain" xlink:to="ifrs-full_SegmentsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentsDomain_lbl" xml:lang="en-US">Segments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExplorationAndProductionMember" xlink:label="ec_ExplorationAndProductionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExplorationAndProductionMember" xlink:to="ec_ExplorationAndProductionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExplorationAndProductionMember_lbl" xml:lang="en-US">Exploration and Production [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExplorationAndProductionMember_lbl" xml:lang="en-US">Exploration and Production</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ExplorationAndProductionMember_lbl" xml:lang="en-US">Exploration and production</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsAxis" xlink:label="ifrs-full_ClassesOfAssetsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsAxis_lbl" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain" xlink:label="ifrs-full_ClassesOfAssetsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_ClassesOfAssetsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsDomain_lbl" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsAccountedForUsingEquityMethodMember" xlink:label="ifrs-full_InvestmentsAccountedForUsingEquityMethodMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsAccountedForUsingEquityMethodMember" xlink:to="ifrs-full_InvestmentsAccountedForUsingEquityMethodMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsAccountedForUsingEquityMethodMember_lbl" xml:lang="en-US">Investment in joint ventures [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InvestmentsAccountedForUsingEquityMethodMember_lbl" xml:lang="en-US">Investment in joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentOfLongTermAssetsLineItems" xlink:label="ec_ImpairmentOfLongTermAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentOfLongTermAssetsLineItems" xlink:to="ec_ImpairmentOfLongTermAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentOfLongTermAssetsLineItems_lbl" xml:lang="en-US">Impairment of non-financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentOfLongTermAssetsLineItems_lbl" xml:lang="en-US">Impairment of non-financial assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentOfLongTermAssetsLineItems_lbl" xml:lang="en-US">Impairment of long-term assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the impairment of Non-Current assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Impairment Of Noncurrent Assets [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTextBlock_lbl" xml:lang="en-US">Schedule of impairments or reversals</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the impairment of assets of exploration and production segment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock_lbl" xml:lang="en-US">DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlockTextBlock_lbl" xml:lang="en-US">Schedule of breakdown of oilfields impairment losses or reversals</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the impairment of assets of exploration and production segment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about impairment losses of assets of refining and petrochemicals segment [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentLossesOfAssetsOfRefiningAndPetrochemicalsSegmentTextBlock_lbl" xml:lang="en-US">Schedule of refining and petrochemical segment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock" xlink:label="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock" xlink:to="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock_lbl" xml:lang="en-US">The tabular disclosure of information pertaining to impairment loss allocated to balance sheet items.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock_lbl" xml:lang="en-US">Schedule Of Impairment Loss Allocated To Classes Of Assets Of Cash Generating Units [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ScheduleOfImpairmentLossAllocatedToClassesOfAssetsOfCashGeneratingUnitsTextBlock_lbl" xml:lang="en-US">Schedule of energy transmission and roads</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_lbl" xml:lang="en-US">Schedule of goodwill in acquisitions of subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" xml:lang="en-US">Disclosure of detailed information about borrowings [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" xml:lang="en-US">Schedule of composition of loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_lbl" xml:lang="en-US">Disclosure of fair value measurement of liabilities [text block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutBorrowingsByMaturityTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByMaturityTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByMaturityTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about borrowings by maturity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByMaturityTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about borrowings by maturity [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByMaturityTextBlock_lbl" xml:lang="en-US">Schedule of maturity of loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about borrowings by interest rate type.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about borrowings by interest rate type [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutBorrowingsByInterestRateTypeTextBlock_lbl" xml:lang="en-US">Schedule of Breakdown by type of interest rate and currency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock" xlink:label="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock" xlink:to="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock_lbl" xml:lang="en-US">The detailed information of trade and other payable.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock_lbl" xml:lang="en-US">Disclosure Detailed information of trade and other payables [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureDetailedInformationOfTradeAndOtherPayablesTextBlock_lbl" xml:lang="en-US">Schedule of trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about provision balances for employee benefits.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about provision balances for employee benefits [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionBalancesForEmployeeBenefitsTextBlock_lbl" xml:lang="en-US">Schedule of provision balances for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:to="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl" xml:lang="en-US">Schedule of net defined benefit liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about movement of defined benefits plans recognized in results and other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about movement of defined benefits plans recognized in results and other comprehensive income [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfDefinedBenefitsPlansRecognizedInResultsAndOtherComprehensiveIncomeTextBlock_lbl" xml:lang="en-US">Schedule of movement of defined benefits plans recognized in results and other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_lbl" xml:lang="en-US">Disclosure of fair value of plan assets [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_lbl" xml:lang="en-US">Schedule of fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about fair value hierarchy of plan assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about fair value hierarchy of plan assets [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutFairValueHierarchyOfPlanAssetsTextBlock_lbl" xml:lang="en-US">Schedule of fair value hierarchy of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory" xlink:label="ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory" xlink:to="ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory_lbl" xml:lang="en-US">Disclosure of analysis of present value of defined benefit obligation that distinguishes nature, characteristics and risks [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfAnalysisOfPresentValueOfDefinedBenefitObligationThatDistinguishesNatureCharacteristicsAndRisksExplanatory_lbl" xml:lang="en-US">Schedule of analysis of present value of defined benefit obligation that distinguishes nature, characteristics and risks</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory" xlink:label="ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory" xlink:to="ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory_lbl" xml:lang="en-US">Disclosure of information about maturity profile of defined benefit obligation [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory_lbl" xml:lang="en-US">Schedule of maturity profile of defined benefit obligation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:to="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_lbl" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_lbl" xml:lang="en-US">Schedule of sensitivity analysis for actuarial assumptions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock" xlink:to="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the changes in different categories of accrued liabilities and provisions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock_lbl" xml:lang="en-US">Disclosure of accrued liabilities and provisions [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTextBlock_lbl" xml:lang="en-US">Schedule of accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_lbl" xml:lang="en-US">Disclosure of contingent liabilities [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_lbl" xml:lang="en-US">Schedule of litigations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about unrecorded contingent liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about unrecorded contingent liabilities [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutUnrecordedContingentLiabilitiesTextBlock_lbl" xml:lang="en-US">Schedule of unrecorded contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about contingent assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about contingent assets [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutContingentAssetsTextBlock_lbl" xml:lang="en-US">Schedule of contingent assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock_lbl" xml:lang="en-US">The tabular disclosure of detailed information about share capital, reserves and other equity interest.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about share capital, reserves and other equity interest [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutShareCapitalReservesAndOtherEquityInterestTableTextBlock_lbl" xml:lang="en-US">Schedule of composition of the ecopetrol business group's reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock_lbl" xml:lang="en-US">The tabular disclosure of detailed information about balance and breakdown of changes in equity reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about balance and breakdown of changes in equity reserves [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutBalanceAndBreakdownOfChangesInEquityReservesTableTextBlock_lbl" xml:lang="en-US">Schedule of balance of movement of the equity reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDividendsExplanatory" xlink:label="ifrs-full_DisclosureOfDividendsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDividendsExplanatory" xlink:to="ifrs-full_DisclosureOfDividendsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDividendsExplanatory_lbl" xml:lang="en-US">Disclosure of dividends [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDividendsExplanatory_lbl" xml:lang="en-US">Schedule of dividends paid</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:label="ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:to="ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory_lbl" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [text block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:label="ifrs-full_DisclosureOfEarningsPerShareExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutBreakdownOfSalesRevenueTableTextBlock_lbl" xml:lang="en-US">Schedule of detailed information of revenue from contracts with customers</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTableTextBlock_lbl" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTableTextBlock_lbl" xml:lang="en-US">Schedule of sales by geographic areas</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTextBlock_lbl" xml:lang="en-US">The detail of cost of sales of non current assets per function for the year.</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTextBlock_lbl" xml:lang="en-US">Schedule of cost of sales of non current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationOnGeneralAndAdministrationExpenseTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationOnGeneralAndAdministrationExpenseTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationOnGeneralAndAdministrationExpenseTableTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information on general and administration expense.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationOnGeneralAndAdministrationExpenseTableTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information on general and administration expense [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationOnGeneralAndAdministrationExpenseTableTextBlock_lbl" xml:lang="en-US">Schedule of administrative, operative, and project expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" xlink:label="ec_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_lbl" xml:lang="en-US">Disclosure of other operating income expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_lbl" xml:lang="en-US">Disclosure of other operating income expense [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfOtherOperatingIncomeExpenseTableTextBlock_lbl" xml:lang="en-US">Schedule of other operating expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfFinanceIncomeExpenseExplanatoryTableTextBlock" xlink:label="ec_DisclosureOfFinanceIncomeExpenseExplanatoryTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfFinanceIncomeExpenseExplanatoryTableTextBlock_lbl" xml:lang="en-US">Disclosure Of Finance Income Expense Explanatory [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfFinanceIncomeExpenseExplanatoryTableTextBlock_lbl" xml:lang="en-US">Schedule of financial result</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementTable" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementTable" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementTable_lbl" xml:lang="en-US">Disclosure of detailed information about financial risk management [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesAxis" xlink:label="ifrs-full_TypesOfHedgesAxis" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesDomain" xlink:label="ifrs-full_TypesOfHedgesDomain" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowHedgesMember" xlink:label="ifrs-full_CashFlowHedgesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowHedgesMember" xlink:to="ifrs-full_CashFlowHedgesMember_lbl" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowHedgesMember_lbl" xml:lang="en-US">Cash flow hedging</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CashFlowHedgesMember_lbl" xml:lang="en-US">Cash flow hedging for future crude oil exports</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementLineItems" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about financial risk management</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about financial risk management [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutFinancialRiskManagementLineItems_lbl" xml:lang="en-US">Risk management</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCarryingValuesForFinancialAssetsAndLiabilitiesDenominatedInForeignCurrenciesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutCarryingValuesForFinancialAssetsAndLiabilitiesDenominatedInForeignCurrenciesTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCarryingValuesForFinancialAssetsAndLiabilitiesDenominatedInForeignCurrenciesTextBlock_lbl" xml:lang="en-US">The detailed information about the carrying amount of financial assets and liabilities denominated in foreign currencies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCarryingValuesForFinancialAssetsAndLiabilitiesDenominatedInForeignCurrenciesTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About The Carrying Values For Financial Assets And Liabilities Denominated In Foreign Currencies [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCarryingValuesForFinancialAssetsAndLiabilitiesDenominatedInForeignCurrenciesTextBlock_lbl" xml:lang="en-US">Schedule of book values of financial assets and liabilities denominated in foreign currency</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" xlink:label="ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk_lbl" xml:lang="en-US">Schedule of sensitivity analysis for exchange rate risk</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_lbl" xml:lang="en-US">Disclosure of detailed information about hedging instruments [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_lbl" xml:lang="en-US">Schedule of non-derivative hedging instrument</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about movement of other comprehensive income by item.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about movement of other comprehensive income by item explanatory [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutMovementOfOtherComprehensiveIncomeByItemExplanatoryTextBlock_lbl" xml:lang="en-US">Schedule of movement in the other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutExpectedReclassificationOfExchangeDifferencesAccumulatedInOtherComprehensiveIncomeToProfitOrLossTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutExpectedReclassificationOfExchangeDifferencesAccumulatedInOtherComprehensiveIncomeToProfitOrLossTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutExpectedReclassificationOfExchangeDifferencesAccumulatedInOtherComprehensiveIncomeToProfitOrLossTableTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about expected reclassification of exchange differences accumulated in other comprehensive income to profit or loss.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutExpectedReclassificationOfExchangeDifferencesAccumulatedInOtherComprehensiveIncomeToProfitOrLossTableTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about expected reclassification of exchange differences accumulated in other comprehensive income to profit or loss [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutExpectedReclassificationOfExchangeDifferencesAccumulatedInOtherComprehensiveIncomeToProfitOrLossTableTextBlock_lbl" xml:lang="en-US">Schedule of expected reclassification of exchange differences accumulated in other comprehensive income to profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutAgingAnalysisOfAccountsReceivablePortfolioInArrearsButNotImpairedExplanatoryTableTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutAgingAnalysisOfAccountsReceivablePortfolioInArrearsButNotImpairedExplanatoryTableTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutAgingAnalysisOfAccountsReceivablePortfolioInArrearsButNotImpairedExplanatoryTableTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about the aging analysis of the accounts receivable portfolio in arrears, but not impaired.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutAgingAnalysisOfAccountsReceivablePortfolioInArrearsButNotImpairedExplanatoryTableTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Aging Analysis Of Accounts Receivable Portfolio In Arrears, But Not Impaired, Explanatory [Table Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutAgingAnalysisOfAccountsReceivablePortfolioInArrearsButNotImpairedExplanatoryTableTextBlock_lbl" xml:lang="en-US">Schedule of Analysis of age of financial assets that are past due but not impaired</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory_lbl" xml:lang="en-US">Disclosure of financial instruments by type of interest rate [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory_lbl" xml:lang="en-US">Schedule of financial instruments by type of interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfManagingLiquidityRisk" xlink:label="ifrs-full_DescriptionOfManagingLiquidityRisk" />
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    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutLeverageRatioTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutLeverageRatioTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutLeverageRatioTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about leverage ratio.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutLeverageRatioTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Leverage Ratio [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutLeverageRatioTextBlock_lbl" xml:lang="en-US">Schedule of leverage index over the periods reported</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:label="ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_lbl" xml:lang="en-US">Disclosure of interests in other entities [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_lbl" xml:lang="en-US">Schedule of associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl" xml:lang="en-US">Disclosure of transactions between related parties [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl" xml:lang="en-US">Schedule of transactions between related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointOperationsTable" xlink:label="ifrs-full_DisclosureOfJointOperationsTable" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointOperationsTable_lbl" xml:lang="en-US">Disclosure of joint operations [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractTypeAxis" xlink:label="ec_ContractTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractTypeAxis" xlink:to="ec_ContractTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractTypeAxis_lbl" xml:lang="en-US">Contract Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractTypeDomain" xlink:label="ec_ContractTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractTypeDomain" xlink:to="ec_ContractTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractTypeDomain_lbl" xml:lang="en-US">Contract Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractWhereEntityNotOperatorMember" xlink:label="ec_ContractWhereEntityNotOperatorMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractWhereEntityNotOperatorMember" xlink:to="ec_ContractWhereEntityNotOperatorMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractWhereEntityNotOperatorMember_lbl" xml:lang="en-US">Contract where entity not operator</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractWhereEntityIsOperatorMember" xlink:label="ec_ContractWhereEntityIsOperatorMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractWhereEntityIsOperatorMember" xlink:to="ec_ContractWhereEntityIsOperatorMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractWhereEntityIsOperatorMember_lbl" xml:lang="en-US">Contract where Entity is operator</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointOperationsLineItems" xlink:label="ifrs-full_DisclosureOfJointOperationsLineItems" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointOperationsLineItems_lbl" xml:lang="en-US">Disclosure of joint operations [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfJointOperationsLineItems_lbl" xml:lang="en-US">Joint operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:label="ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory" xlink:to="ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory_lbl" xml:lang="en-US">Disclosure of interests in joint arrangements [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory_lbl" xml:lang="en-US">Schedule of interests in joint arrangements</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsExplanatory" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsExplanatory_lbl" xml:lang="en-US">Disclosure of operating segments [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsExplanatory_lbl" xml:lang="en-US">Schedule of operating segments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfProductsAndServicesExplanatory" xlink:label="ifrs-full_DisclosureOfProductsAndServicesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfProductsAndServicesExplanatory" xlink:to="ifrs-full_DisclosureOfProductsAndServicesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProductsAndServicesExplanatory_lbl" xml:lang="en-US">Disclosure of products and services [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfProductsAndServicesExplanatory_lbl" xml:lang="en-US">Schedule of products and services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock" xlink:label="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock" xlink:to="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about investment property segment wise.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock_lbl" xml:lang="en-US">Disclosure Of Detailed Information Disclosure Of Detailed Information About Investment Property Segment Wise [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationDisclosureOfDetailedInformationAboutInvestmentPropertySegmentWiseTextBlock_lbl" xml:lang="en-US">Schedule of detailed information about investment property segment wise</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:label="ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:to="ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_lbl" xml:lang="en-US">Disclosure of interests in subsidiaries [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_lbl" xml:lang="en-US">Schedule of interests in subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:label="ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInterestsInAssociatesExplanatory" xlink:to="ifrs-full_DisclosureOfInterestsInAssociatesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInterestsInAssociatesExplanatory_lbl" xml:lang="en-US">Disclosure of interests in associates [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfInterestsInAssociatesExplanatory_lbl" xml:lang="en-US">Schedule of interests in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_lbl" xml:lang="en-US">Disclosure of subsidiaries [text block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_lbl" xml:lang="en-US">Schedule of subsidiaries, associates, and joint ventures in Interconexion Electrica S.A. ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfLoansTextBlock" xlink:label="ec_DisclosureOfLoansTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfLoansTextBlock" xlink:to="ec_DisclosureOfLoansTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfLoansTextBlock_lbl" xml:lang="en-US">The disclosure of disclosure of loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfLoansTextBlock_lbl" xml:lang="en-US">Disclosure Of Loans [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfLoansTextBlock_lbl" xml:lang="en-US">Schedule of loans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts" xlink:label="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts" xlink:to="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts_lbl" xml:lang="en-US">The disclosure of detailed information about quantitative information of concession services contracts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts_lbl" xml:lang="en-US">Disclosure Of Quantitative Information Of Concession Services Contracts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfQuantitativeInformationOfConcessionServicesContracts_lbl" xml:lang="en-US">Schedule of concession services contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCapitalizedCostsRelatingToOilAndGasProducingActivitiesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutCapitalizedCostsRelatingToOilAndGasProducingActivitiesTextBlock" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCapitalizedCostsRelatingToOilAndGasProducingActivitiesTextBlock_lbl" xml:lang="en-US">Tabular disclosure of aggregate capitalized costs relating to an enterprise's oil and gas producing activities and the aggregate related accumulated depreciation, depletion, amortization.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCapitalizedCostsRelatingToOilAndGasProducingActivitiesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about capitalized costs relating to oil and gas producing activities [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCapitalizedCostsRelatingToOilAndGasProducingActivitiesTextBlock_lbl" xml:lang="en-US">Schedule of capitalized costs relating to oil and gas exploration and production activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about costs Incurred in oil and gas property acquisition, exploration, and development activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about costs Incurred in oil and gas property acquisition, exploration, and development activities [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCostsIncurredInOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTextBlock_lbl" xml:lang="en-US">Schedule of costs incurred in oil and gas exploration and developed activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about results of operations for oil and gas exploration and production activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about results of operations for oil and gas exploration and production activities [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutResultsOfOperationsForOilAndGasExplorationAndProductionActivitiesTextBlock_lbl" xml:lang="en-US">Schedule of results of operations for oil and gas exploration and production activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about proved developed and undeveloped oil and gas reserve quantities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about proved developed and undeveloped oil and gas reserve quantities [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTextBlock_lbl" xml:lang="en-US">Schedule of information relates to the net proven reserves owned by the Ecopetrol Business Group</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about schedule of standardized measure of discounted future cash flows relating to prove crude oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about schedule of standardized measure of discounted future cash flows relating to proved crude oil and gas reserves [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutScheduleOfStandardizedMeasureOfDiscountedFutureCashFlowsRelatingToProvedCrudeOilAndGasReservesTextBlock_lbl" xml:lang="en-US">Schedule of standardized measure of discounted future net cash flows relating to proved oil and gas quantities and changes therein</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock" xlink:label="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock" xlink:to="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock_lbl" xml:lang="en-US">The disclosure of detailed information about principal sources of change in standardized measure of discounted future net cash flows.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock_lbl" xml:lang="en-US">Disclosure of detailed information about principal sources of change in standardized measure of discounted future net cash flows [Text Block]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutPrincipalSourcesOfChangeInStandardizedMeasureOfDiscountedFutureNetCashFlowsTextBlock_lbl" xml:lang="en-US">Schedule of principal sources of change in the standardized measure of discounted net cash flows</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProportionOfSharesAvailableForPublicTrade" xlink:label="ec_ProportionOfSharesAvailableForPublicTrade" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProportionOfSharesAvailableForPublicTrade" xlink:to="ec_ProportionOfSharesAvailableForPublicTrade_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProportionOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">The percentage of shares which is publicly available to trade in stock exchange.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProportionOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">Proportion Of Shares Available For Public Trade</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProportionOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">Proportion of shares available for public trade held privately</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProportionOfSharesHeldByMajorityShareHolders" xlink:label="ec_ProportionOfSharesHeldByMajorityShareHolders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProportionOfSharesHeldByMajorityShareHolders" xlink:to="ec_ProportionOfSharesHeldByMajorityShareHolders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProportionOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">The percentage of shares which are held by majority share holders not available for public trade.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProportionOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">Proportion Of Shares Held By Majority Share Holders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProportionOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">Proportion of shares held by majority share holders</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsTable_lbl" xml:lang="en-US">Disclosure of detailed information about business combination [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="ifrs-full_BusinessCombinationsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BusinessCombinationsAxis_lbl" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="ifrs-full_BusinessCombinationsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BusinessCombinationsDomain" xlink:to="ifrs-full_BusinessCombinationsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BusinessCombinationsDomain_lbl" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member" xlink:label="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member" xlink:to="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member_lbl" xml:lang="en-US">This member stands for Enerfn Sociedad de Energa S.L.U and Enerfin Enervento Exterior S.L.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member_lbl" xml:lang="en-US">Enerfn Sociedad de Energa S.L.U and Enerfin Enervento Exterior S.L. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EnerfnSociedadDeEnergaS.l.uAndEnerfinEnerventoExteriorS.l.Member_lbl" xml:lang="en-US">Enerfn Sociedad de Energa S.L.U and Enerfin Enervento Exterior S.L</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:to="ifrs-full_SignificantInvestmentsInSubsidiariesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesAxis_lbl" xml:lang="en-US">Subsidiaries [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:to="ifrs-full_SignificantInvestmentsInSubsidiariesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesDomain_lbl" xml:lang="en-US">Subsidiaries [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EconovaTechnologyInnovationS.lMember" xlink:label="ec_EconovaTechnologyInnovationS.lMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EconovaTechnologyInnovationS.lMember" xlink:to="ec_EconovaTechnologyInnovationS.lMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EconovaTechnologyInnovationS.lMember_lbl" xml:lang="en-US">It represents information of econova technology &amp; innovation, S.L.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EconovaTechnologyInnovationS.lMember_lbl" xml:lang="en-US">Econova Technology &amp; Innovation, S.L [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EconovaTechnologyInnovationS.lMember_lbl" xml:lang="en-US">Econova Technology &amp; Innovation, S.L.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RepsolDuctosDeColombiaRdcMember" xlink:label="ec_RepsolDuctosDeColombiaRdcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RepsolDuctosDeColombiaRdcMember" xlink:to="ec_RepsolDuctosDeColombiaRdcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RepsolDuctosDeColombiaRdcMember_lbl" xml:lang="en-US">This member stands for Repsol Ductos de Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RepsolDuctosDeColombiaRdcMember_lbl" xml:lang="en-US">Repsol Ductos de Colombia (RDC) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RepsolDuctosDeColombiaRdcMember_lbl" xml:lang="en-US">Repsol Ductos de Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInterchileMember" xlink:label="ec_IsaInterchileMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInterchileMember" xlink:to="ec_IsaInterchileMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInterchileMember_lbl" xml:lang="en-US">This member stands for ISA Interchile.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInterchileMember_lbl" xml:lang="en-US">ISA Interchile</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInterchileMember_lbl" xml:lang="en-US">ISA Interchile</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IsaInterchileMember_lbl" xml:lang="en-US">Isa Interchile</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesAxis" xlink:label="ifrs-full_JointVenturesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_JointVenturesAxis" xlink:to="ifrs-full_JointVenturesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_JointVenturesAxis_lbl" xml:lang="en-US">Joint ventures [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesDomain" xlink:label="ifrs-full_JointVenturesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_JointVenturesDomain" xlink:to="ifrs-full_JointVenturesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_JointVenturesDomain_lbl" xml:lang="en-US">Joint ventures [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember" xlink:label="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember" xlink:to="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember_lbl" xml:lang="en-US">This member stands for Interconexiones del Norte S.A. energy megaproject.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember_lbl" xml:lang="en-US">Interconexiones del Norte S.A. Energy Mega Project [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionesDelNorteS.a.EnergyMegaProjectMember_lbl" xml:lang="en-US">Interconexiones del Norte S.A. Energy Mega Project</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsOwnershipAxis" xlink:label="ec_IfrsOwnershipAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsOwnershipAxis" xlink:to="ec_IfrsOwnershipAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsOwnershipAxis_lbl" xml:lang="en-US">Information by name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsOwnershipAxis_lbl" xml:lang="en-US">IFRS Ownership [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsOwnershipDomain" xlink:label="ec_IfrsOwnershipDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsOwnershipDomain" xlink:to="ec_IfrsOwnershipDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsOwnershipDomain_lbl" xml:lang="en-US">Name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsOwnershipDomain_lbl" xml:lang="en-US">IFRS Ownership [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoDeColombiaS.a.Member" xlink:label="ec_OleoductoDeColombiaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoDeColombiaS.a.Member" xlink:to="ec_OleoductoDeColombiaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OleoductoDeColombiaS.a.Member_lbl" xml:lang="en-US">Represents information pertaining to Oleoducto de Colombia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoDeColombiaS.a.Member_lbl" xml:lang="en-US">Oleoducto de Colombia S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OleoductoDeColombiaS.a.Member_lbl" xml:lang="en-US">Oleoducto de Colombia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsAssetAcquisitionAxis" xlink:label="ec_IfrsAssetAcquisitionAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsAssetAcquisitionAxis" xlink:to="ec_IfrsAssetAcquisitionAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsAssetAcquisitionAxis_lbl" xml:lang="en-US">Information by asset acquisition.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsAssetAcquisitionAxis_lbl" xml:lang="en-US">IFRS Asset Acquisition [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsAssetAcquisitionDomain" xlink:label="ec_IfrsAssetAcquisitionDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsAssetAcquisitionDomain" xlink:to="ec_IfrsAssetAcquisitionDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsAssetAcquisitionDomain_lbl" xml:lang="en-US">Asset Acquisition.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsAssetAcquisitionDomain_lbl" xml:lang="en-US">IFRS Asset Acquisition [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_WindAutogeneracinS.a.s.Member" xlink:label="ec_WindAutogeneracinS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_WindAutogeneracinS.a.s.Member" xlink:to="ec_WindAutogeneracinS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_WindAutogeneracinS.a.s.Member_lbl" xml:lang="en-US">This member stands for Wind Autogeneracin S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_WindAutogeneracinS.a.s.Member_lbl" xml:lang="en-US">Wind Autogeneracin S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_WindAutogeneracinS.a.s.Member_lbl" xml:lang="en-US">Wind Autogeneracin S.A.S</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsLegalEntityAxis" xlink:label="ec_IfrsLegalEntityAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsLegalEntityAxis" xlink:to="ec_IfrsLegalEntityAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsLegalEntityAxis_lbl" xml:lang="en-US">This axis represents for legal entity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsLegalEntityAxis_lbl" xml:lang="en-US">Ifrs Legal Entity Axis</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsLegalEntityMember" xlink:label="ec_IfrsLegalEntityMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsLegalEntityMember" xlink:to="ec_IfrsLegalEntityMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsLegalEntityMember_lbl" xml:lang="en-US">This member stands for legal entity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsLegalEntityMember_lbl" xml:lang="en-US">Ifrs Legal Entity Member</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about business combination [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems_lbl" xml:lang="en-US">Basis for presentation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations" xlink:label="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations" xlink:to="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations_lbl" xml:lang="en-US">The number of acquisitions during the period, relating to development and operations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations_lbl" xml:lang="en-US">Number of Acquisitions, Companies Dedicated to Development and Operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfAcquisitionsCompaniesDedicatedToDevelopmentAndOperations_lbl" xml:lang="en-US">Number of Acquisitions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfAcquisitionsSpecialPurposeCompanies" xlink:label="ec_NumberOfAcquisitionsSpecialPurposeCompanies" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfAcquisitionsSpecialPurposeCompanies" xlink:to="ec_NumberOfAcquisitionsSpecialPurposeCompanies_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfAcquisitionsSpecialPurposeCompanies_lbl" xml:lang="en-US">The number of acquisitions during the period, relating to special purpose companies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfAcquisitionsSpecialPurposeCompanies_lbl" xml:lang="en-US">Number of Acquisitions, Special Purpose Companies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfAcquisitionsSpecialPurposeCompanies_lbl" xml:lang="en-US">Number of acquisitions, special purpose companies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:to="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US">Consideration transferred, acquisition-date fair value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US">Consideration for the acquisition of assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US">Consideration transferred, net of cash and cash equivalents acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US">Consideration transferred</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfOwnershipInterestInJointVenture" xlink:to="ifrs-full_ProportionOfOwnershipInterestInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">Proportion of ownership interest in joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">Ownership interest, joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">% of Ecopetrol's ownership</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:to="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" xml:lang="en-US">Percentage of direct ownership of capital shares</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" xml:lang="en-US">Ownership interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:to="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xml:lang="en-US">Percentage of voting equity interests acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xml:lang="en-US">Percentage of ownership interest acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xml:lang="en-US">Percentage of interest acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsAssetAcquisitionConsiderationTransferred" xlink:label="ec_IfrsAssetAcquisitionConsiderationTransferred" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsAssetAcquisitionConsiderationTransferred" xlink:to="ec_IfrsAssetAcquisitionConsiderationTransferred_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsAssetAcquisitionConsiderationTransferred_lbl" xml:lang="en-US">Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsAssetAcquisitionConsiderationTransferred_lbl" xml:lang="en-US">IFRS Asset Acquisition, Consideration Transferred</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsAssetAcquisitionConsiderationTransferred_lbl" xml:lang="en-US">Acquisition recognized</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProportionOfOwnershipInterestsHeld" xlink:label="ec_ProportionOfOwnershipInterestsHeld" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProportionOfOwnershipInterestsHeld" xlink:to="ec_ProportionOfOwnershipInterestsHeld_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProportionOfOwnershipInterestsHeld_lbl" xml:lang="en-US">The proportion of the voting rights held by the entity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProportionOfOwnershipInterestsHeld_lbl" xml:lang="en-US">Proportion of Ownership Interests Held</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProportionOfOwnershipInterestsHeld_lbl" xml:lang="en-US">Percentage of ownership interest held</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccountingPoliciesTable" xlink:label="ec_DisclosureOfAccountingPoliciesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccountingPoliciesTable" xlink:to="ec_DisclosureOfAccountingPoliciesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccountingPoliciesTable_lbl" xml:lang="en-US">Disclosure of accounting policies [Table]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfAccountingPoliciesTable_lbl" xml:lang="en-US">Disclosure of accounting policies [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl" xml:lang="en-US">Classes of property, plant and equipment [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_lbl" xml:lang="en-US">Classes of property, plant and equipment [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OfficeEquipmentMember" xlink:label="ifrs-full_OfficeEquipmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OfficeEquipmentMember" xlink:to="ifrs-full_OfficeEquipmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OfficeEquipmentMember_lbl" xml:lang="en-US">Plant and equipment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OfficeEquipmentMember_lbl" xml:lang="en-US">Plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetworkInfrastructureMember" xlink:label="ifrs-full_NetworkInfrastructureMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetworkInfrastructureMember" xlink:to="ifrs-full_NetworkInfrastructureMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetworkInfrastructureMember_lbl" xml:lang="en-US">Pipelines, networks and lines</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NetworkInfrastructureMember_lbl" xml:lang="en-US">Pipelines, networks, and lines</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BuildingsMember" xlink:label="ifrs-full_BuildingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BuildingsMember" xlink:to="ifrs-full_BuildingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BuildingsMember_lbl" xml:lang="en-US">Buildings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BuildingsMember_lbl" xml:lang="en-US">Buildings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:to="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Other</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="ifrs-full_RangeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangeAxis_lbl" xml:lang="en-US">Range [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="ifrs-full_RangeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_RangeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangeDomain_lbl" xml:lang="en-US">Range [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="ifrs-full_BottomOfRangeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BottomOfRangeMember" xlink:to="ifrs-full_BottomOfRangeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BottomOfRangeMember_lbl" xml:lang="en-US">Bottom of range</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BottomOfRangeMember_lbl" xml:lang="en-US">Bottom of range</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="ifrs-full_TopOfRangeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TopOfRangeMember" xlink:to="ifrs-full_TopOfRangeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TopOfRangeMember_lbl" xml:lang="en-US">Top of range</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TopOfRangeMember_lbl" xml:lang="en-US">Top of range</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccountingPoliciesLineItems" xlink:label="ec_DisclosureOfAccountingPoliciesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccountingPoliciesLineItems" xlink:to="ec_DisclosureOfAccountingPoliciesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccountingPoliciesLineItems_lbl" xml:lang="en-US">Disclosure of accounting policies [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfAccountingPoliciesLineItems_lbl" xml:lang="en-US">Accounting policies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:label="ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment" xlink:to="ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment_lbl" xml:lang="en-US">Useful life measured as period of time, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment_lbl" xml:lang="en-US">Estimated, useful life</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture" xlink:label="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture" xlink:to="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture_lbl" xml:lang="en-US">Percentage of right of use assets recognized in joint venture agreement.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture_lbl" xml:lang="en-US">Percentage of Right of Use Assets Recognized in Joint Venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfRightOfUseAssetsRecognizedInJointVenture_lbl" xml:lang="en-US">Percentage of right of use assets recognized in joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount" xlink:label="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount" xlink:to="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount_lbl" xml:lang="en-US">Percentage of Interest Rate On Accumulated Severance Amount.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount_lbl" xml:lang="en-US">Percentage of Interest Rate On Accumulated Severance Amount</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfInterestRateOnAccumulatedSeveranceAmount_lbl" xml:lang="en-US">Percentage of interest rate on accumulated severance amount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsNumberOfOperatingSegments" xlink:label="ec_IfrsNumberOfOperatingSegments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsNumberOfOperatingSegments" xlink:to="ec_IfrsNumberOfOperatingSegments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsNumberOfOperatingSegments_lbl" xml:lang="en-US">Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsNumberOfOperatingSegments_lbl" xml:lang="en-US">Ifrs Number Of Operating Segments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsNumberOfOperatingSegments_lbl" xml:lang="en-US">Number of business segments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Cash" xlink:label="ifrs-full_Cash" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Cash" xlink:to="ifrs-full_Cash_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Cash_lbl" xml:lang="en-US">Cash</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Cash_lbl" xml:lang="en-US">Cash and banks</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:label="ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:to="ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_lbl" xml:lang="en-US">Short-term investments, classified as cash equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_lbl" xml:lang="en-US">Short-term investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents" xlink:label="ifrs-full_RestrictedCashAndCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RestrictedCashAndCashEquivalents" xlink:to="ifrs-full_RestrictedCashAndCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RestrictedCashAndCashEquivalents_lbl" xml:lang="en-US">Restricted Cash and Cash Equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RestrictedCashAndCashEquivalents_lbl" xml:lang="en-US">Restricted cash</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AverageRateOfReturnOnCashAndCashEquivalents" xlink:label="ec_AverageRateOfReturnOnCashAndCashEquivalents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AverageRateOfReturnOnCashAndCashEquivalents" xlink:to="ec_AverageRateOfReturnOnCashAndCashEquivalents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AverageRateOfReturnOnCashAndCashEquivalents_lbl" xml:lang="en-US">The percentage of average return earned on cash and cash equivalents during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AverageRateOfReturnOnCashAndCashEquivalents_lbl" xml:lang="en-US">Average Rate of Return on Cash and Cash Equivalents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AverageRateOfReturnOnCashAndCashEquivalents_lbl" xml:lang="en-US">Return on cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExternalCreditGradesAxis" xlink:label="ifrs-full_ExternalCreditGradesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExternalCreditGradesAxis" xlink:to="ifrs-full_ExternalCreditGradesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExternalCreditGradesAxis_lbl" xml:lang="en-US">External credit grades [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExternalCreditGradesDomain" xlink:label="ifrs-full_ExternalCreditGradesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExternalCreditGradesDomain" xlink:to="ifrs-full_ExternalCreditGradesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExternalCreditGradesDomain_lbl" xml:lang="en-US">External credit grades [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GradeMember" xlink:label="ec_GradeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GradeMember" xlink:to="ec_GradeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GradeMember_lbl" xml:lang="en-US">This member stands for A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GradeMember_lbl" xml:lang="en-US">A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_GradeMember_lbl" xml:lang="en-US">A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BbMember" xlink:label="ec_BbMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BbMember" xlink:to="ec_BbMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BbMember_lbl" xml:lang="en-US">This member stands for BB.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BbMember_lbl" xml:lang="en-US">BB [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BbMember_lbl" xml:lang="en-US">BB</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FOneMember" xlink:label="ec_FOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FOneMember" xlink:to="ec_FOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FOneMember_lbl" xml:lang="en-US">Represents the information pertaining to F1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FOneMember_lbl" xml:lang="en-US">F1 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FOneMember_lbl" xml:lang="en-US">F1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AaaMember" xlink:label="ec_AaaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AaaMember" xlink:to="ec_AaaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AaaMember_lbl" xml:lang="en-US">This member stands for AAA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AaaMember_lbl" xml:lang="en-US">AAA [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AaaMember_lbl" xml:lang="en-US">AAA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AaMember" xlink:label="ec_AaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AaMember" xlink:to="ec_AaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AaMember_lbl" xml:lang="en-US">Represents the information pertaining to AA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AaMember_lbl" xml:lang="en-US">AA [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AaMember_lbl" xml:lang="en-US">AA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PlusMember" xlink:label="ec_PlusMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PlusMember" xlink:to="ec_PlusMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PlusMember_lbl" xml:lang="en-US">This member stands for A+.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PlusMember_lbl" xml:lang="en-US">A+ [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PlusMember_lbl" xml:lang="en-US">A+</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FTwoMember" xlink:label="ec_FTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FTwoMember" xlink:to="ec_FTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to F2.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FTwoMember_lbl" xml:lang="en-US">F2</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FTwoMember_lbl" xml:lang="en-US">F2</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Aa1Member" xlink:label="ec_Aa1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Aa1Member" xlink:to="ec_Aa1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Aa1Member_lbl" xml:lang="en-US">Represents the information pertaining to A-1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Aa1Member_lbl" xml:lang="en-US">A-1 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Aa1Member_lbl" xml:lang="en-US">A-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BbbMember" xlink:label="ec_BbbMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BbbMember" xlink:to="ec_BbbMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BbbMember_lbl" xml:lang="en-US">This member stands for BBB.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BbbMember_lbl" xml:lang="en-US">BBB [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BbbMember_lbl" xml:lang="en-US">BBB</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FOnePlusMember" xlink:label="ec_FOnePlusMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FOnePlusMember" xlink:to="ec_FOnePlusMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FOnePlusMember_lbl" xml:lang="en-US">Represents the information pertaining to F1+.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FOnePlusMember_lbl" xml:lang="en-US">F1+</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FOnePlusMember_lbl" xml:lang="en-US">F1+</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FOnePlusMember_lbl" xml:lang="en-US">F1+</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BrcOnePlusMember" xlink:label="ec_BrcOnePlusMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BrcOnePlusMember" xlink:to="ec_BrcOnePlusMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BrcOnePlusMember_lbl" xml:lang="en-US">This member stands for BRC1+.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BrcOnePlusMember_lbl" xml:lang="en-US">BRC1+ [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BrcOnePlusMember_lbl" xml:lang="en-US">BRC1+</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PAaaMember" xlink:label="ec_PAaaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PAaaMember" xlink:to="ec_PAaaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PAaaMember_lbl" xml:lang="en-US">This member stands for P AAA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PAaaMember_lbl" xml:lang="en-US">P AAA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PAaaMember_lbl" xml:lang="en-US">P AAA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BaaTwoMember" xlink:label="ec_BaaTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BaaTwoMember" xlink:to="ec_BaaTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BaaTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to Baa2.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BaaTwoMember_lbl" xml:lang="en-US">BAA2</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BaaTwoMember_lbl" xml:lang="en-US">Baa2</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AaammfMember" xlink:label="ec_AaammfMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AaammfMember" xlink:to="ec_AaammfMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AaammfMember_lbl" xml:lang="en-US">Represents the information pertaining to AAAmmf.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AaammfMember_lbl" xml:lang="en-US">AAAmmf [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AaammfMember_lbl" xml:lang="en-US">AAAmmf</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Aaaf2Member" xlink:label="ec_Aaaf2Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Aaaf2Member" xlink:to="ec_Aaaf2Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Aaaf2Member_lbl" xml:lang="en-US">Represents the information pertaining to AAAF.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Aaaf2Member_lbl" xml:lang="en-US">AAAF</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Aaaf2Member_lbl" xml:lang="en-US">AAAF</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_F3Member" xlink:label="ec_F3Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_F3Member" xlink:to="ec_F3Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_F3Member_lbl" xml:lang="en-US">This member stands for F3.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_F3Member_lbl" xml:lang="en-US">F3</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_F3Member_lbl" xml:lang="en-US">F3</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_P1Member" xlink:label="ec_P1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_P1Member" xlink:to="ec_P1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_P1Member_lbl" xml:lang="en-US">Represents the information pertaining to P-1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_P1Member_lbl" xml:lang="en-US">P-1</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_P1Member_lbl" xml:lang="en-US">P-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Ba1Member" xlink:label="ec_Ba1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Ba1Member" xlink:to="ec_Ba1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Ba1Member_lbl" xml:lang="en-US">This member stands for Ba1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Ba1Member_lbl" xml:lang="en-US">Ba1 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Ba1Member_lbl" xml:lang="en-US">Ba1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_A1Member" xlink:label="ec_A1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_A1Member" xlink:to="ec_A1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_A1Member_lbl" xml:lang="en-US">This member stands for A1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_A1Member_lbl" xml:lang="en-US">A1 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_A1Member_lbl" xml:lang="en-US">A1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BMember" xlink:label="ec_BMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BMember" xlink:to="ec_BMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BMember_lbl" xml:lang="en-US">This member stands for B.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BMember_lbl" xml:lang="en-US">B [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BMember_lbl" xml:lang="en-US">B</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Brc1Member" xlink:label="ec_Brc1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Brc1Member" xlink:to="ec_Brc1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Brc1Member_lbl" xml:lang="en-US">Represents the information pertaining to BRC1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Brc1Member_lbl" xml:lang="en-US">BRC1 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Brc1Member_lbl" xml:lang="en-US">BRC1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NoRatingAvailableMember" xlink:label="ec_NoRatingAvailableMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NoRatingAvailableMember" xlink:to="ec_NoRatingAvailableMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NoRatingAvailableMember_lbl" xml:lang="en-US">This member stands for assets for which no credit rating is available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NoRatingAvailableMember_lbl" xml:lang="en-US">No Rating Available [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NoRatingAvailableMember_lbl" xml:lang="en-US">Not available rating</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="ifrs-full_CarryingAmountMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_CarryingAmountMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CarryingAmountMember_lbl" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CarryingAmountMember_lbl" xml:lang="en-US">Carrying Amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember" xlink:label="ifrs-full_GrossCarryingAmountMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossCarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl" xml:lang="en-US">Cost</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl" xml:lang="en-US">Cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedImpairmentMember" xlink:label="ifrs-full_AccumulatedImpairmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedImpairmentMember" xlink:to="ifrs-full_AccumulatedImpairmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedImpairmentMember_lbl" xml:lang="en-US">Accumulated impairment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccumulatedImpairmentMember_lbl" xml:lang="en-US">Accumulated impairment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in goodwill [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivablesAbstract" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivablesAbstract" xlink:to="ifrs-full_TradeAndOtherCurrentReceivablesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesAbstract_lbl" xml:lang="en-US">Trade and other current receivables [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesAbstract_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionsTradeAndOtherReceivablesCurrent" xlink:label="ec_ConcessionsTradeAndOtherReceivablesCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionsTradeAndOtherReceivablesCurrent" xlink:to="ec_ConcessionsTradeAndOtherReceivablesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionsTradeAndOtherReceivablesCurrent_lbl" xml:lang="en-US">Amount of concessions trade and other receivables current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionsTradeAndOtherReceivablesCurrent_lbl" xml:lang="en-US">Concessions Trade And Other Receivables Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionsTradeAndOtherReceivablesCurrent_lbl" xml:lang="en-US">Concessions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FuelPriceStabilizationFundReceivablesCurrent" xlink:label="ec_FuelPriceStabilizationFundReceivablesCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FuelPriceStabilizationFundReceivablesCurrent" xlink:to="ec_FuelPriceStabilizationFundReceivablesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FuelPriceStabilizationFundReceivablesCurrent_lbl" xml:lang="en-US">The amount of current fuel price stabilization fund receivables from the agency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FuelPriceStabilizationFundReceivablesCurrent_lbl" xml:lang="en-US">Fuel Price Stabilization Fund Receivables Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FuelPriceStabilizationFundReceivablesCurrent_lbl" xml:lang="en-US">Fuel Price Stabilization Fund</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeReceivablesDueFromCustomerAbstract" xlink:label="ec_TradeReceivablesDueFromCustomerAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeReceivablesDueFromCustomerAbstract" xlink:to="ec_TradeReceivablesDueFromCustomerAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeReceivablesDueFromCustomerAbstract_lbl" xml:lang="en-US">Trade receivables due from customer [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeReceivablesDueFromCustomerAbstract_lbl" xml:lang="en-US">Customers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentReceivablesDueFromForeignCustomers" xlink:label="ec_CurrentReceivablesDueFromForeignCustomers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentReceivablesDueFromForeignCustomers" xlink:to="ec_CurrentReceivablesDueFromForeignCustomers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentReceivablesDueFromForeignCustomers_lbl" xml:lang="en-US">The amount of current receivables due from foreign customers.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentReceivablesDueFromForeignCustomers_lbl" xml:lang="en-US">Current receivables due from foreign customers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentReceivablesDueFromForeignCustomers_lbl" xml:lang="en-US">Foreign</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentReceivablesDueFromDomesticCustomers" xlink:label="ec_CurrentReceivablesDueFromDomesticCustomers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentReceivablesDueFromDomesticCustomers" xlink:to="ec_CurrentReceivablesDueFromDomesticCustomers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentReceivablesDueFromDomesticCustomers_lbl" xml:lang="en-US">The amount of current receivables due from foreign customers.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentReceivablesDueFromDomesticCustomers_lbl" xml:lang="en-US">Current receivables due from domestic customers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentReceivablesDueFromDomesticCustomers_lbl" xml:lang="en-US">Domestic</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xlink:to="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US">Current receivables due from related parties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US">Related parties (Note 31)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentReceivablesFromEmployeesLoans" xlink:label="ec_CurrentReceivablesFromEmployeesLoans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentReceivablesFromEmployeesLoans" xlink:to="ec_CurrentReceivablesFromEmployeesLoans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">The amount of current receivables from employees loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">Current Receivables from Employees Loans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">Accounts receivable from employees</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentReceivableFromIndustrialServices" xlink:label="ec_CurrentReceivableFromIndustrialServices" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentReceivableFromIndustrialServices" xlink:to="ec_CurrentReceivableFromIndustrialServices_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentReceivableFromIndustrialServices_lbl" xml:lang="en-US">The amount of current receivables from industrial services.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentReceivableFromIndustrialServices_lbl" xml:lang="en-US">Current Receivable from Industrial Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentReceivableFromIndustrialServices_lbl" xml:lang="en-US">Industrial services</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="ifrs-full_OtherCurrentReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentReceivables" xlink:to="ifrs-full_OtherCurrentReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentReceivables_lbl" xml:lang="en-US">Other current receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentReceivables_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesAbstract" xlink:label="ifrs-full_NoncurrentReceivablesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentReceivablesAbstract" xlink:to="ifrs-full_NoncurrentReceivablesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentReceivablesAbstract_lbl" xml:lang="en-US">Non-current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentReceivablesAbstract_lbl" xml:lang="en-US">Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionsTradeAndOtherReceivablesNoncurrent" xlink:label="ec_ConcessionsTradeAndOtherReceivablesNoncurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionsTradeAndOtherReceivablesNoncurrent" xlink:to="ec_ConcessionsTradeAndOtherReceivablesNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionsTradeAndOtherReceivablesNoncurrent_lbl" xml:lang="en-US">Amount of concessions trade and other receivables noncurrent.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionsTradeAndOtherReceivablesNoncurrent_lbl" xml:lang="en-US">Concessions Trade And Other Receivables Noncurrent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionsTradeAndOtherReceivablesNoncurrent_lbl" xml:lang="en-US">Concessions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesDueFromAssociates" xlink:label="ifrs-full_NoncurrentReceivablesDueFromAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentReceivablesDueFromAssociates" xlink:to="ifrs-full_NoncurrentReceivablesDueFromAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentReceivablesDueFromAssociates_lbl" xml:lang="en-US">Non-current receivables due from associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentReceivablesDueFromAssociates_lbl" xml:lang="en-US">Accounts receivable from Sao Paulo State</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentReceivablesFromEmployeesLoans" xlink:label="ec_NonCurrentReceivablesFromEmployeesLoans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentReceivablesFromEmployeesLoans" xlink:to="ec_NonCurrentReceivablesFromEmployeesLoans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">The amount of non-current receivables from employee loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">Non-current receivables from employees loans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NonCurrentReceivablesFromEmployeesLoans_lbl" xml:lang="en-US">Accounts receivable from employees</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesDueFromRelatedParties" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentReceivablesDueFromRelatedParties" xlink:to="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US">Non-current receivables due from related parties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US">Related parties (Note 31)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NoncurrentReceivablesFromDomesticCustomers" xlink:label="ec_NoncurrentReceivablesFromDomesticCustomers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NoncurrentReceivablesFromDomesticCustomers" xlink:to="ec_NoncurrentReceivablesFromDomesticCustomers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NoncurrentReceivablesFromDomesticCustomers_lbl" xml:lang="en-US">The amount of non-current receivables from domestic customers.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NoncurrentReceivablesFromDomesticCustomers_lbl" xml:lang="en-US">Noncurrent Receivables From Domestic Customers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NoncurrentReceivablesFromDomesticCustomers_lbl" xml:lang="en-US">Domestic</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NoncurrentReceivablesFromForeignCustomers" xlink:label="ec_NoncurrentReceivablesFromForeignCustomers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NoncurrentReceivablesFromForeignCustomers" xlink:to="ec_NoncurrentReceivablesFromForeignCustomers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NoncurrentReceivablesFromForeignCustomers_lbl" xml:lang="en-US">The amount of non-current receivables from foreign customers.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NoncurrentReceivablesFromForeignCustomers_lbl" xml:lang="en-US">Noncurrent Receivables From Foreign Customers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NoncurrentReceivablesFromForeignCustomers_lbl" xml:lang="en-US">Foreign</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentReceivables" xlink:label="ifrs-full_OtherNoncurrentReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentReceivables" xlink:to="ifrs-full_OtherNoncurrentReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentReceivables_lbl" xml:lang="en-US">Other non-current receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherNoncurrentReceivables_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTable" xlink:label="ifrs-full_DisclosureOfFinancialAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="ifrs-full_DisclosureOfFinancialAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsTable_lbl" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeReceivablesMember" xlink:label="ifrs-full_TradeReceivablesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeReceivablesMember" xlink:to="ifrs-full_TradeReceivablesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeReceivablesMember_lbl" xml:lang="en-US">Trade receivables [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeReceivablesMember_lbl" xml:lang="en-US">Trade receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FuelPriceStabilizationFundMember" xlink:label="ec_FuelPriceStabilizationFundMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FuelPriceStabilizationFundMember" xlink:to="ec_FuelPriceStabilizationFundMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FuelPriceStabilizationFundMember_lbl" xml:lang="en-US">This member stands for fuel Price stabilization fund.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FuelPriceStabilizationFundMember_lbl" xml:lang="en-US">Fuel Price Stabilization Fund [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FuelPriceStabilizationFundMember_lbl" xml:lang="en-US">Fuel Price stabilization fund</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_DisclosureOfFinancialAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems_lbl" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets" xlink:label="ifrs-full_FinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssets" xlink:to="ifrs-full_FinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US">Financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US">Financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseThroughSettlementsForPeriodFinancialAssets" xlink:label="ec_IncreaseThroughSettlementsForPeriodFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseThroughSettlementsForPeriodFinancialAssets" xlink:to="ec_IncreaseThroughSettlementsForPeriodFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseThroughSettlementsForPeriodFinancialAssets_lbl" xml:lang="en-US">The increase in financial assets from adjustments made during the period, possibly due to settlements of doubtful accounts.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseThroughSettlementsForPeriodFinancialAssets_lbl" xml:lang="en-US">Increase Through Settlements For The Period, Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseThroughSettlementsForPeriodFinancialAssets_lbl" xml:lang="en-US">Settlements for the year (Note 25)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseThroughMobilizationsAndOthersFinancialAssets" xlink:label="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets" xlink:to="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets_lbl" xml:lang="en-US">The increase in financial assets from adjustments made during the period, possibly due to adjustments affecting the allowance.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets_lbl" xml:lang="en-US">Increase Through Mobilizations and Others, Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseThroughMobilizationsAndOthersFinancialAssets_lbl" xml:lang="en-US">Mobilizations and others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DecreaseThroughCollectionsFinancialAssets" xlink:label="ec_DecreaseThroughCollectionsFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DecreaseThroughCollectionsFinancialAssets" xlink:to="ec_DecreaseThroughCollectionsFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DecreaseThroughCollectionsFinancialAssets_lbl" xml:lang="en-US">The decrease in financial assets from adjustments made during the period, possibly due to amounts collected that were previously considered doubtful.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DecreaseThroughCollectionsFinancialAssets_lbl" xml:lang="en-US">Decrease Through Collections, Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DecreaseThroughCollectionsFinancialAssets_lbl" xml:lang="en-US">Collections</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherReceivablesTable" xlink:label="ec_TradeAndOtherReceivablesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherReceivablesTable" xlink:to="ec_TradeAndOtherReceivablesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherReceivablesTable_lbl" xml:lang="en-US">Schedule reflecting trade and other receivables.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherReceivablesTable_lbl" xml:lang="en-US">Trade and Other Receivables [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolMember" xlink:label="ec_EcopetrolMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolMember" xlink:to="ec_EcopetrolMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolMember_lbl" xml:lang="en-US">This member stands for Ecopetrol.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolMember_lbl" xml:lang="en-US">Ecopetrol [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolMember_lbl" xml:lang="en-US">Ecopetrol</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_EcopetrolMember_lbl" xml:lang="en-US">Ecopetrol S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefineriaDeCartegenaMember" xlink:label="ec_RefineriaDeCartegenaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefineriaDeCartegenaMember" xlink:to="ec_RefineriaDeCartegenaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefineriaDeCartegenaMember_lbl" xml:lang="en-US">Refineria De Cartagana [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefineriaDeCartegenaMember_lbl" xml:lang="en-US">Refineria de Cartagena S.A.S</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RefineriaDeCartegenaMember_lbl" xml:lang="en-US">Refineria de Cartagena</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionElectricaS.aMember" xlink:label="ec_InterconexionElectricaS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionElectricaS.aMember" xlink:to="ec_InterconexionElectricaS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionElectricaS.aMember_lbl" xml:lang="en-US">This member stands for interconexion electrica S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionElectricaS.aMember_lbl" xml:lang="en-US">Interconexion Electrica S.A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionElectricaS.aMember_lbl" xml:lang="en-US">Interconexion Electrica S.A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InterconexionElectricaS.aMember_lbl" xml:lang="en-US">Interconexion Electrica S.A. ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaMember" xlink:label="ec_IsaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaMember" xlink:to="ec_IsaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaMember_lbl" xml:lang="en-US">It represents member of ISA subsidiaries .</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaMember_lbl" xml:lang="en-US">ISA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaMember_lbl" xml:lang="en-US">ISA Group</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IsaMember_lbl" xml:lang="en-US">ISA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherReceivablesLineItems" xlink:label="ec_TradeAndOtherReceivablesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherReceivablesLineItems" xlink:to="ec_TradeAndOtherReceivablesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherReceivablesLineItems_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherReceivablesLineItems_lbl" xml:lang="en-US">Trade And Other Receivables [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherReceivablesLineItems_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xlink:label="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xlink:to="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Proceeds from government grants, classified as investing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Payment made by the ministry of finance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AllowanceForCreditLossesOfFinancialAssets" xlink:label="ec_AllowanceForCreditLossesOfFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AllowanceForCreditLossesOfFinancialAssets" xlink:to="ec_AllowanceForCreditLossesOfFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AllowanceForCreditLossesOfFinancialAssets_lbl" xml:lang="en-US">The amount of allowance for credit losses of financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AllowanceForCreditLossesOfFinancialAssets_lbl" xml:lang="en-US">Allowance For Credit Losses Of Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AllowanceForCreditLossesOfFinancialAssets_lbl" xml:lang="en-US">Allowance for expected credit losses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables" xlink:label="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables" xlink:to="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables_lbl" xml:lang="en-US">Represents the amount of gross account receivable included in others.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables_lbl" xml:lang="en-US">Gross Account Receivable, Classified As Other Current Receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GrossAccountReceivableClassifiedAsOtherCurrentReceivables_lbl" xml:lang="en-US">Gross accounts receivable</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses" xlink:label="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses" xlink:to="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses_lbl" xml:lang="en-US">Represents the amount of provision for expected losses which is included in provision line for expected credit losses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses_lbl" xml:lang="en-US">Provision For Expected Losses, Included In Provision Line For Expected Credit Losses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvisionForExpectedLossesIncludedInProvisionLineForExpectedCreditLosses_lbl" xml:lang="en-US">Provision for expected losses, included in provision line for expected credit losses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetBookValueAccountsReceivableClassifiedAsOther" xlink:label="ec_NetBookValueAccountsReceivableClassifiedAsOther" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetBookValueAccountsReceivableClassifiedAsOther" xlink:to="ec_NetBookValueAccountsReceivableClassifiedAsOther_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetBookValueAccountsReceivableClassifiedAsOther_lbl" xml:lang="en-US">Represents the amount of net book value of these accounts receivable after provision.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetBookValueAccountsReceivableClassifiedAsOther_lbl" xml:lang="en-US">Net Book Value, Accounts Receivable, Classified As Other</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NetBookValueAccountsReceivableClassifiedAsOther_lbl" xml:lang="en-US">Net book value of accounts receivable included in others</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl" xml:lang="en-US">Classes of financial instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_lbl" xml:lang="en-US">Classes of financial instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherReceivablesMember" xlink:label="ec_TradeAndOtherReceivablesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherReceivablesMember" xlink:to="ec_TradeAndOtherReceivablesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherReceivablesMember_lbl" xml:lang="en-US">This member stands for trade and other receivables.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherReceivablesMember_lbl" xml:lang="en-US">Trade And Other Receivables [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherReceivablesMember_lbl" xml:lang="en-US">Accounts receivable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems_lbl" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets" xlink:label="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets" xlink:to="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets_lbl" xml:lang="en-US">The increase (decrease) in financial assets resulting from additions (reversals), net.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets_lbl" xml:lang="en-US">Increase (Decrease) Through Additions (Reversals), Net, Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughAdditionsReversalsNetFinancialAssets_lbl" xml:lang="en-US">Additions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" xml:lang="en-US">Increase (decrease) through foreign exchange, financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" xml:lang="en-US">Currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DecreaseThroughWriteOffsAndUsesFinancialAssets" xlink:label="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets" xlink:to="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets_lbl" xml:lang="en-US">The decrease in financial assets resulting from write-offs and uses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets_lbl" xml:lang="en-US">Decrease Through Write Offs And Uses, Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DecreaseThroughWriteOffsAndUsesFinancialAssets_lbl" xml:lang="en-US">Accounts receivable write-off and uses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaEnergaBrazilMember" xlink:label="ec_IsaEnergaBrazilMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaEnergaBrazilMember" xlink:to="ec_IsaEnergaBrazilMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaEnergaBrazilMember_lbl" xml:lang="en-US">The information pertaining to ISA Energa Brazil.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaEnergaBrazilMember_lbl" xml:lang="en-US">ISA Energa Brazil [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaEnergaBrazilMember_lbl" xml:lang="en-US">ISA Energa Brazil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionAssets" xlink:label="ec_ConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionAssets" xlink:to="ec_ConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionAssets_lbl" xml:lang="en-US">Carrying amount of assets when construction services are exchanged in service concession arrangements.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionAssets_lbl" xml:lang="en-US">Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_ConcessionAssets_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_ConcessionAssets_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_ConcessionAssets_lbl" xml:lang="en-US">Total concessions, asset</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets" xlink:label="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets" xlink:to="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">The amount of increase (decrease) in concession assets due to remuneration accrued.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">Increase (Decrease) due to Remuneration Accrual, Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseDueToRemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">Remuneration of concession assets (accrual)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets" xlink:label="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets" xlink:to="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets_lbl" xml:lang="en-US">The amount of increase (decrease) in concession assets due to regulatory adjustment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets_lbl" xml:lang="en-US">Increase (Decrease) due to Regulatory Adjustment, Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseDueToRegulatoryAdjustmentConcessionAssets_lbl" xml:lang="en-US">Regulatory adjustment on remuneration according to Resoluo Homologatria (REH) n 3,466/2025</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DecreaseDueToPaymentsConcessionAssets" xlink:label="ec_DecreaseDueToPaymentsConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DecreaseDueToPaymentsConcessionAssets" xlink:to="ec_DecreaseDueToPaymentsConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DecreaseDueToPaymentsConcessionAssets_lbl" xml:lang="en-US">The amount of decrease in concession assets due to payments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DecreaseDueToPaymentsConcessionAssets_lbl" xml:lang="en-US">Decrease due to Payments, Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_DecreaseDueToPaymentsConcessionAssets_lbl" xml:lang="en-US">Payments for concession assets (cash)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ModificationsInScheduledRepaymentsInstallments" xlink:label="ec_ModificationsInScheduledRepaymentsInstallments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ModificationsInScheduledRepaymentsInstallments" xlink:to="ec_ModificationsInScheduledRepaymentsInstallments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ModificationsInScheduledRepaymentsInstallments_lbl" xml:lang="en-US">The number of installments for which modifications for repayments were made during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ModificationsInScheduledRepaymentsInstallments_lbl" xml:lang="en-US">Modifications In Scheduled Repayments, Installments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ModificationsInScheduledRepaymentsInstallments_lbl" xml:lang="en-US">Number of installments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ModificationsInScheduledRepaymentsAmount" xlink:label="ec_ModificationsInScheduledRepaymentsAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ModificationsInScheduledRepaymentsAmount" xlink:to="ec_ModificationsInScheduledRepaymentsAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ModificationsInScheduledRepaymentsAmount_lbl" xml:lang="en-US">The amount of installment for which modifications for repayments were made during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ModificationsInScheduledRepaymentsAmount_lbl" xml:lang="en-US">Modifications In Scheduled Repayments, Amount</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ModificationsInScheduledRepaymentsAmount_lbl" xml:lang="en-US">Financial component of the RBSE payment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RemunerationAccrualConcessionAssetsAbstract" xlink:label="ec_RemunerationAccrualConcessionAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RemunerationAccrualConcessionAssetsAbstract" xlink:to="ec_RemunerationAccrualConcessionAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RemunerationAccrualConcessionAssetsAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RemunerationAccrualConcessionAssetsAbstract_lbl" xml:lang="en-US">Remuneration Accrual, Concession Assets [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RemunerationAccrualConcessionAssetsAbstract_lbl" xml:lang="en-US">Movements, less PIS/Confins taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RemunerationAccrualConcessionAssets" xlink:label="ec_RemunerationAccrualConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RemunerationAccrualConcessionAssets" xlink:to="ec_RemunerationAccrualConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">The amount of remuneration accrued in concession assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">Remuneration Accrual, Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RemunerationAccrualConcessionAssets_lbl" xml:lang="en-US">Remuneration of concession assets, net of taxes (accrual)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReductionOfConcessionAssetsDueToPayment" xlink:label="ec_ReductionOfConcessionAssetsDueToPayment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReductionOfConcessionAssetsDueToPayment" xlink:to="ec_ReductionOfConcessionAssetsDueToPayment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReductionOfConcessionAssetsDueToPayment_lbl" xml:lang="en-US">The amount of payments in concession assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReductionOfConcessionAssetsDueToPayment_lbl" xml:lang="en-US">Reduction of Concession Assets Due to Payment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_ReductionOfConcessionAssetsDueToPayment_lbl" xml:lang="en-US">Payments for concession assets, net of taxes (cash)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetMovementsInRemunerationForConcessionAssets" xlink:label="ec_NetMovementsInRemunerationForConcessionAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetMovementsInRemunerationForConcessionAssets" xlink:to="ec_NetMovementsInRemunerationForConcessionAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetMovementsInRemunerationForConcessionAssets_lbl" xml:lang="en-US">The total movements in remuneration for concession assets during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetMovementsInRemunerationForConcessionAssets_lbl" xml:lang="en-US">Net Movements In Remuneration for Concession Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_NetMovementsInRemunerationForConcessionAssets_lbl" xml:lang="en-US">Net movement of the year</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentCrudeOil" xlink:label="ifrs-full_CurrentCrudeOil" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentCrudeOil" xlink:to="ifrs-full_CurrentCrudeOil_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentCrudeOil_lbl" xml:lang="en-US">Current crude oil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentCrudeOil_lbl" xml:lang="en-US">Crude oil</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPetroleumAndPetrochemicalProducts" xlink:label="ifrs-full_CurrentPetroleumAndPetrochemicalProducts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPetroleumAndPetrochemicalProducts" xlink:to="ifrs-full_CurrentPetroleumAndPetrochemicalProducts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPetroleumAndPetrochemicalProducts_lbl" xml:lang="en-US">Current petroleum and petrochemical products</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentPetroleumAndPetrochemicalProducts_lbl" xml:lang="en-US">Fuels and petrochemicals</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:to="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl" xml:lang="en-US">Current raw materials and current production supplies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl" xml:lang="en-US">Materials for goods production</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrudeOilInventoryInTransitBarrels" xlink:label="ec_CrudeOilInventoryInTransitBarrels" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrudeOilInventoryInTransitBarrels" xlink:to="ec_CrudeOilInventoryInTransitBarrels_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CrudeOilInventoryInTransitBarrels_lbl" xml:lang="en-US">Quantity of crude oil inventory in transit, measured in barrels, for which control has not yet transferred to the customer as of the reporting date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrudeOilInventoryInTransitBarrels_lbl" xml:lang="en-US">Crude Oil Inventory in Transit (Barrels)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrudeOilInventoryInTransitBarrels_lbl" xml:lang="en-US">Volume of crude oil inventory in transit</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:label="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:to="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost of inventories recognised as expense during period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost of sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod" xlink:label="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod" xlink:to="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">The amount of inventories, process materials recognised as an expense during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost Of Inventories, Process Materials Recognised As Expense During Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CostOfInventoriesProcessMaterialsRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost of materials</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod" xlink:label="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod" xlink:to="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">The amount of inventories, materials and operating supplies recognised as an expense during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost Of Inventories, Materials and Operating Supplies Recognised As Expense During Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CostOfInventoriesMaterialsAndOperatingSuppliesRecognisedAsExpenseDuringPeriod_lbl" xml:lang="en-US">Cost of materials and operating supplies</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvisionsForInventories" xlink:label="ec_ProvisionsForInventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvisionsForInventories" xlink:to="ec_ProvisionsForInventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvisionsForInventories_lbl" xml:lang="en-US">The amount provisions for inventories.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvisionsForInventories_lbl" xml:lang="en-US">Provisions for Inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_ProvisionsForInventories_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_ProvisionsForInventories_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughAdditionsForInventories" xlink:label="ec_IncreaseDecreaseThroughAdditionsForInventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughAdditionsForInventories" xlink:to="ec_IncreaseDecreaseThroughAdditionsForInventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughAdditionsForInventories_lbl" xml:lang="en-US">The amount for increase (decrease) in additions for inventory.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughAdditionsForInventories_lbl" xml:lang="en-US">Increase Decrease Through Additions For Inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughAdditionsForInventories_lbl" xml:lang="en-US">Additions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories" xlink:to="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories_lbl" xml:lang="en-US">The increase (decrease) in provisions for inventories resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories_lbl" xml:lang="en-US">Increase Decrease Through Net Exchange Differences, Provisions for Inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesprovisionsForInventories_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvisionUsedProvisionsForInventories" xlink:label="ec_ProvisionUsedProvisionsForInventories" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvisionUsedProvisionsForInventories" xlink:to="ec_ProvisionUsedProvisionsForInventories_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvisionUsedProvisionsForInventories_lbl" xml:lang="en-US">The amount used for provisions for inventories.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvisionUsedProvisionsForInventories_lbl" xml:lang="en-US">Provision Used Provisions for Inventories</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ec_ProvisionUsedProvisionsForInventories_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfOtherFinancialAssetsTable" xlink:label="ec_DisclosureOfOtherFinancialAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfOtherFinancialAssetsTable" xlink:to="ec_DisclosureOfOtherFinancialAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfOtherFinancialAssetsTable_lbl" xml:lang="en-US">Table disclosure represent the other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfOtherFinancialAssetsTable_lbl" xml:lang="en-US">Disclosure of Other financial assets [Table]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfOtherFinancialAssetsTable_lbl" xml:lang="en-US">Disclosure of Other financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrencyTypesAxis" xlink:label="ec_CurrencyTypesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrencyTypesAxis" xlink:to="ec_CurrencyTypesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrencyTypesAxis_lbl" xml:lang="en-US">Axis Information by currency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrencyTypesAxis_lbl" xml:lang="en-US">Currency Types [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrencyTypesDomain" xlink:label="ec_CurrencyTypesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrencyTypesDomain" xlink:to="ec_CurrencyTypesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrencyTypesDomain_lbl" xml:lang="en-US">Domain information for aggregated classes of currencies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrencyTypesDomain_lbl" xml:lang="en-US">Currency Types [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LocalCurrencyMember" xlink:label="ec_LocalCurrencyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LocalCurrencyMember" xlink:to="ec_LocalCurrencyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LocalCurrencyMember_lbl" xml:lang="en-US">N/A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LocalCurrencyMember_lbl" xml:lang="en-US">Local currency [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LocalCurrencyMember_lbl" xml:lang="en-US">Investment portfolio - Local currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_LocalCurrencyMember_lbl" xml:lang="en-US">Local currency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyMember" xlink:label="ec_ForeignCurrencyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyMember" xlink:to="ec_ForeignCurrencyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyMember_lbl" xml:lang="en-US">N/A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyMember_lbl" xml:lang="en-US">Foreign currency [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyMember_lbl" xml:lang="en-US">Foreign currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ForeignCurrencyMember_lbl" xml:lang="en-US">Investment portfolio - Foreign currency</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueMember" xlink:label="ifrs-full_FinancialAssetsAtFairValueMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueMember" xlink:to="ifrs-full_FinancialAssetsAtFairValueMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueMember_lbl" xml:lang="en-US">Financial assets at fair value, class [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueMember_lbl" xml:lang="en-US">Financial assets at fair value, class</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentsInEquitySecuritiesAndTrustFundsMember" xlink:label="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember" xlink:to="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember_lbl" xml:lang="en-US">This member stands for equity securities and trust funds.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember_lbl" xml:lang="en-US">Investments in Equity Securities and Trust Funds [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentsInEquitySecuritiesAndTrustFundsMember_lbl" xml:lang="en-US">Investments in equity securities and trust funds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HedgingInstrumentMember" xlink:label="ec_HedgingInstrumentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HedgingInstrumentMember" xlink:to="ec_HedgingInstrumentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HedgingInstrumentMember_lbl" xml:lang="en-US">This member stands for hedging instruments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HedgingInstrumentMember_lbl" xml:lang="en-US">Hedging instruments [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_HedgingInstrumentMember_lbl" xml:lang="en-US">Hedging instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityInvestmentsAndOthersMember" xlink:label="ec_EquityInvestmentsAndOthersMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityInvestmentsAndOthersMember" xlink:to="ec_EquityInvestmentsAndOthersMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityInvestmentsAndOthersMember_lbl" xml:lang="en-US">This member stands for equity investments and others.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityInvestmentsAndOthersMember_lbl" xml:lang="en-US">Equity Investments and Others [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EquityInvestmentsAndOthersMember_lbl" xml:lang="en-US">Equity investments and others</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:label="ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:to="ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" xml:lang="en-US">Financial assets measured at fair value through other comprehensive income, category [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" xml:lang="en-US">Assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:to="ifrs-full_FinancialAssetsAtAmortisedCostMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostMember_lbl" xml:lang="en-US">Financial assets at amortised cost, class [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostMember_lbl" xml:lang="en-US">Assets measured at amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfOtherFinancialAssetsLineItems" xlink:label="ec_DisclosureOfOtherFinancialAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfOtherFinancialAssetsLineItems" xlink:to="ec_DisclosureOfOtherFinancialAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfOtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Line item represents the other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfOtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Disclosure of Other financial assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfOtherFinancialAssetsLineItems_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl" xml:lang="en-US">Assets measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US">Assets measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract" xlink:label="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract" xlink:to="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract_lbl" xml:lang="en-US">N/A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract_lbl" xml:lang="en-US">Financial Assets at Fair Value Through Amortized Cost [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FinancialAssetsAtFairValueThroughAmortizedCostAbstract_lbl" xml:lang="en-US">Assets measured at amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome" xlink:to="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Non-current financial assets at fair value through other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome" xlink:label="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome" xlink:to="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome_lbl" xml:lang="en-US">The amount of financial assets that are measured at fair value and other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome_lbl" xml:lang="en-US">Financial Assets At Fair Value Through Profit or Loss and Other Comprehensive Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FinancialAssetsAtFairValueThroughProfitOrLossAndOtherComprehensiveIncome_lbl" xml:lang="en-US">Assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCost" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCost" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtAmortisedCost" xlink:to="ifrs-full_FinancialAssetsAtAmortisedCost_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCost_lbl" xml:lang="en-US">Financial assets at amortised cost</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCost_lbl" xml:lang="en-US">Assets measured at amortized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinancialAssets" xlink:label="ifrs-full_OtherFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinancialAssets" xlink:to="ifrs-full_OtherFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US">Other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US">Other financial assets (Note 9)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_McdermottInternationalLtdMember" xlink:label="ec_McdermottInternationalLtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_McdermottInternationalLtdMember" xlink:to="ec_McdermottInternationalLtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_McdermottInternationalLtdMember_lbl" xml:lang="en-US">This member stands for McDermott International Ltd, a business group.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_McdermottInternationalLtdMember_lbl" xml:lang="en-US">McDermott International LTD [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_McdermottInternationalLtdMember_lbl" xml:lang="en-US">McDermott International Ltd</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SeriesBNonVotingPreferredStockMember" xlink:label="ec_SeriesBNonVotingPreferredStockMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SeriesBNonVotingPreferredStockMember" xlink:to="ec_SeriesBNonVotingPreferredStockMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SeriesBNonVotingPreferredStockMember_lbl" xml:lang="en-US">Series B non voting preferred stock.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SeriesBNonVotingPreferredStockMember_lbl" xml:lang="en-US">Series B Non Voting Preferred Stock [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SeriesBNonVotingPreferredStockMember_lbl" xml:lang="en-US">Series B Non voting preferred stock</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember" xlink:label="ifrs-full_DerivativesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DerivativesMember" xlink:to="ifrs-full_DerivativesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DerivativesMember_lbl" xml:lang="en-US">Derivative financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ForwardContractMember" xlink:label="ifrs-full_ForwardContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ForwardContractMember" xlink:to="ifrs-full_ForwardContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ForwardContractMember_lbl" xml:lang="en-US">Forward contract [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ForwardContractMember_lbl" xml:lang="en-US">Non-delivery forward</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OptionContractMember" xlink:label="ifrs-full_OptionContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OptionContractMember" xlink:to="ifrs-full_OptionContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OptionContractMember_lbl" xml:lang="en-US">Option contract [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OptionContractMember_lbl" xml:lang="en-US">Option contract</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="ifrs-full_TypesOfRisksAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksAxis" xlink:to="ifrs-full_TypesOfRisksAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksAxis_lbl" xml:lang="en-US">Types of risks [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="ifrs-full_TypesOfRisksDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksDomain" xlink:to="ifrs-full_TypesOfRisksDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksDomain_lbl" xml:lang="en-US">Types of risks [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencyRiskMember" xlink:label="ifrs-full_CurrencyRiskMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrencyRiskMember" xlink:to="ifrs-full_CurrencyRiskMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrencyRiskMember_lbl" xml:lang="en-US">Currency risk [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrencyRiskMember_lbl" xml:lang="en-US">Currency risk</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotionalAmount" xlink:label="ifrs-full_NotionalAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotionalAmount" xlink:to="ifrs-full_NotionalAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US">Short-term financing</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US">Short-term financing</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US">Amount disbursed</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StockIssuedDuringPeriodSharesRestructuring" xlink:label="ec_StockIssuedDuringPeriodSharesRestructuring" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StockIssuedDuringPeriodSharesRestructuring" xlink:to="ec_StockIssuedDuringPeriodSharesRestructuring_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StockIssuedDuringPeriodSharesRestructuring_lbl" xml:lang="en-US">Number of shares issued as a plan of restructuring during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StockIssuedDuringPeriodSharesRestructuring_lbl" xml:lang="en-US">Stock Issued During Period, Shares, Restructuring</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_StockIssuedDuringPeriodSharesRestructuring_lbl" xml:lang="en-US">Number of shares issued as a plan of restructuring</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaNorteENordesteMember" xlink:label="ec_InterligacaoEletricaNorteENordesteMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaNorteENordesteMember" xlink:to="ec_InterligacaoEletricaNorteENordesteMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaNorteENordesteMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Norte E Nordeste.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaNorteENordesteMember_lbl" xml:lang="en-US">Interligacao Eletrica Norte E Nordeste [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaNorteENordesteMember_lbl" xml:lang="en-US">Interligacao Eletrica Norte e Nordeste</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects" xlink:label="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects" xlink:to="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects_lbl" xml:lang="en-US">Amount of long-term restricted funds having an specific destination to investment projects.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects_lbl" xml:lang="en-US">Long-term restricted funds having specific destination to investment projects</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LongTermRestrictedFundsHavingSpecificDestinationToInvestmentProjects_lbl" xml:lang="en-US">Restricted funds</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis" xlink:label="ifrs-full_MaturityAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityAxis_lbl" xml:lang="en-US">Maturity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="ifrs-full_MaturityDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_MaturityDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityDomain_lbl" xml:lang="en-US">Maturity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="ifrs-full_NotLaterThanOneYearMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotLaterThanOneYearMember" xlink:to="ifrs-full_NotLaterThanOneYearMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US">Up to 1 year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US">2026</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US">Up to 1 year</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xml:lang="en-US">2023</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xml:lang="en-US">2027</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xml:lang="en-US">1 - 2 years</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">Later than two years and not later than five years [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">2 - 5 years</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanFiveYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl" xml:lang="en-US">More than 5 years</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl" xml:lang="en-US">&gt; 5 years</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NoContractualMaturityMember" xlink:label="ec_NoContractualMaturityMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NoContractualMaturityMember" xlink:to="ec_NoContractualMaturityMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NoContractualMaturityMember_lbl" xml:lang="en-US">Financial assets that do not have a contractual maturity date, including instruments such as equity or participating securities that are not subject to fixed repayment terms.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NoContractualMaturityMember_lbl" xml:lang="en-US">No Contractual Maturity [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NoContractualMaturityMember_lbl" xml:lang="en-US">Without maturity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis_lbl" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="ifrs-full_LevelsOfFairValueHierarchyDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LevelsOfFairValueHierarchyDomain_lbl" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level1OfFairValueHierarchyMember" xlink:to="ifrs-full_Level1OfFairValueHierarchyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 1 of fair value hierarchy [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xml:lang="en-US">Fair value level 1</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 1</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level2OfFairValueHierarchyMember" xlink:to="ifrs-full_Level2OfFairValueHierarchyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 2 of fair value hierarchy [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xml:lang="en-US">Fair value level 2</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 2</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level3OfFairValueHierarchyMember" xlink:to="ifrs-full_Level3OfFairValueHierarchyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 3 of fair value hierarchy [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember_lbl" xml:lang="en-US">Level 3</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentPortfolioMember" xlink:label="ec_InvestmentPortfolioMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentPortfolioMember" xlink:to="ec_InvestmentPortfolioMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InvestmentPortfolioMember_lbl" xml:lang="en-US">This member stands for investment portfolio.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentPortfolioMember_lbl" xml:lang="en-US">Investment Portfolio [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentPortfolioMember_lbl" xml:lang="en-US">Investment portfolio</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInvestmentsMember" xlink:label="ifrs-full_EquityInvestmentsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityInvestmentsMember" xlink:to="ifrs-full_EquityInvestmentsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityInvestmentsMember_lbl" xml:lang="en-US">Equity investments [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityInvestmentsMember_lbl" xml:lang="en-US">Equity investments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue" xlink:label="ifrs-full_FinancialAssetsAtFairValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValue" xlink:to="ifrs-full_FinancialAssetsAtFairValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValue_lbl" xml:lang="en-US">Financial assets, at fair value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValue_lbl" xml:lang="en-US">Financial assets at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion" xlink:label="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion" xlink:to="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion_lbl" xml:lang="en-US">Percentage of number of shares issued for  shares of convertible preferred stock that is converted.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion_lbl" xml:lang="en-US">Convertible Preferred Stock, Percentage of Shares Issued upon Conversion</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConvertiblePreferredStockPercentageOfSharesIssuedUponConversion_lbl" xml:lang="en-US">Percentage of shares issued upon conversion</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityMethodInvestmentsOtherFinancialAssets" xlink:label="ec_EquityMethodInvestmentsOtherFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityMethodInvestmentsOtherFinancialAssets" xlink:to="ec_EquityMethodInvestmentsOtherFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityMethodInvestmentsOtherFinancialAssets_lbl" xml:lang="en-US">The equity method investments other financial assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityMethodInvestmentsOtherFinancialAssets_lbl" xml:lang="en-US">Equity Method Investments, Other Financial Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_EquityMethodInvestmentsOtherFinancialAssets_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_EquityMethodInvestmentsOtherFinancialAssets_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityMethodInvestmentsAdditions" xlink:label="ec_EquityMethodInvestmentsAdditions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityMethodInvestmentsAdditions" xlink:to="ec_EquityMethodInvestmentsAdditions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityMethodInvestmentsAdditions_lbl" xml:lang="en-US">Amount of additions payment in equity method investments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityMethodInvestmentsAdditions_lbl" xml:lang="en-US">Equity Method Investments, Additions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EquityMethodInvestmentsAdditions_lbl" xml:lang="en-US">Additions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss" xlink:label="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss" xlink:to="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">The equity method investments of increase (decrease) in fair value through other comprehensive income (loss).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">Equity Method Investments, Increase (Decrease) in Fair Value Through Other Comprehensive Income (Loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EquityMethodInvestmentsIncreaseDecreaseInFairValueThroughOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">Changes in fair value through other comprehensive income (OCI)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss" xlink:label="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss" xlink:to="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss_lbl" xml:lang="en-US">Amount of increase (decrease) in equity method investment resulting from foreign exchange gain (loss).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss_lbl" xml:lang="en-US">Equity Method Investments, Foreign Exchange Currency Gain (Loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_EquityMethodInvestmentsForeignExchangeCurrencyGainLoss_lbl" xml:lang="en-US">Currency translation through other comprehensive income (OCI)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AminusOneMember" xlink:label="ec_AminusOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AminusOneMember" xlink:to="ec_AminusOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AminusOneMember_lbl" xml:lang="en-US">This member stands for A minus one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AminusOneMember_lbl" xml:lang="en-US">AMinus One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AminusOneMember_lbl" xml:lang="en-US">A-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BbPlusMember" xlink:label="ec_BbPlusMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BbPlusMember" xlink:to="ec_BbPlusMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BbPlusMember_lbl" xml:lang="en-US">This member stands for BB+.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BbPlusMember_lbl" xml:lang="en-US">BB+ [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BbPlusMember_lbl" xml:lang="en-US">BB+</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AaPlusMember" xlink:label="ec_AaPlusMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AaPlusMember" xlink:to="ec_AaPlusMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AaPlusMember_lbl" xml:lang="en-US">This member stands for AA+.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AaPlusMember_lbl" xml:lang="en-US">AA+ [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AaPlusMember_lbl" xml:lang="en-US">AA+</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PMinusOneMember" xlink:label="ec_PMinusOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PMinusOneMember" xlink:to="ec_PMinusOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PMinusOneMember_lbl" xml:lang="en-US">Represents the information pertaining to P-1.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PMinusOneMember_lbl" xml:lang="en-US">P Minus One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PMinusOneMember_lbl" xml:lang="en-US">P-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherExternalCreditGradesMember" xlink:label="ec_OtherExternalCreditGradesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherExternalCreditGradesMember" xlink:to="ec_OtherExternalCreditGradesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherExternalCreditGradesMember_lbl" xml:lang="en-US">This member stands for other external credit grades.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherExternalCreditGradesMember_lbl" xml:lang="en-US">Other External Credit Grades[Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherExternalCreditGradesMember_lbl" xml:lang="en-US">Not available rating</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:label="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US">Current financial assets at fair value through profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US">Other financial assets measured at fair value through profit</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfTaxesTable" xlink:label="ec_DisclosureOfTaxesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfTaxesTable" xlink:to="ec_DisclosureOfTaxesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfTaxesTable_lbl" xml:lang="en-US">Disclosure Of Taxes [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxAssetsTypeAxis" xlink:label="ec_CurrentTaxAssetsTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxAssetsTypeAxis" xlink:to="ec_CurrentTaxAssetsTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxAssetsTypeAxis_lbl" xml:lang="en-US">Current Tax Assets Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxAssetsTypeDomain" xlink:label="ec_CurrentTaxAssetsTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxAssetsTypeDomain" xlink:to="ec_CurrentTaxAssetsTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxAssetsTypeDomain_lbl" xml:lang="en-US">Current Tax Assets Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxRefundMember" xlink:label="ec_ValueAddedTaxRefundMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxRefundMember" xlink:to="ec_ValueAddedTaxRefundMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxRefundMember_lbl" xml:lang="en-US">This member stands for Value added tax refund.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxRefundMember_lbl" xml:lang="en-US">Value Added Tax Refund [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxRefundMember_lbl" xml:lang="en-US">VAT refund</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentIncomeTaxAssetsMember" xlink:label="ec_CurrentIncomeTaxAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentIncomeTaxAssetsMember" xlink:to="ec_CurrentIncomeTaxAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentIncomeTaxAssetsMember_lbl" xml:lang="en-US">This member stands for income tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentIncomeTaxAssetsMember_lbl" xml:lang="en-US">Income tax [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentIncomeTaxAssetsMember_lbl" xml:lang="en-US">Income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherCurrentTaxAssetsMember" xlink:label="ec_OtherCurrentTaxAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherCurrentTaxAssetsMember" xlink:to="ec_OtherCurrentTaxAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherCurrentTaxAssetsMember_lbl" xml:lang="en-US">This member stands for other taxes, assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherCurrentTaxAssetsMember_lbl" xml:lang="en-US">Other taxes, assets [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherCurrentTaxAssetsMember_lbl" xml:lang="en-US">Other taxes, assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTaxAssetsAxis" xlink:label="ec_NonCurrentTaxAssetsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTaxAssetsAxis" xlink:to="ec_NonCurrentTaxAssetsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTaxAssetsAxis_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTaxAssetsAxis_lbl" xml:lang="en-US">Non Current Tax Assets [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTaxAssetsDomain" xlink:label="ec_NonCurrentTaxAssetsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTaxAssetsDomain" xlink:to="ec_NonCurrentTaxAssetsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTaxAssetsDomain_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTaxAssetsDomain_lbl" xml:lang="en-US">Non Current Tax Assets [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredTaxAssetsMember" xlink:label="ec_DeferredTaxAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredTaxAssetsMember" xlink:to="ec_DeferredTaxAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredTaxAssetsMember_lbl" xml:lang="en-US">This member stands for deferred tax assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredTaxAssetsMember_lbl" xml:lang="en-US">Deferred tax assets [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DeferredTaxAssetsMember_lbl" xml:lang="en-US">Deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxCreditsMember" xlink:label="ec_IncomeTaxCreditsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxCreditsMember" xlink:to="ec_IncomeTaxCreditsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeTaxCreditsMember_lbl" xml:lang="en-US">This member stands for income tax credits.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxCreditsMember_lbl" xml:lang="en-US">Income tax credits [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncomeTaxCreditsMember_lbl" xml:lang="en-US">Income tax credits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxLiabilitiesTypeAxis" xlink:label="ec_CurrentTaxLiabilitiesTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxLiabilitiesTypeAxis" xlink:to="ec_CurrentTaxLiabilitiesTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxLiabilitiesTypeAxis_lbl" xml:lang="en-US">Current Tax Liabilities Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxLiabilitiesTypeDomain" xlink:label="ec_CurrentTaxLiabilitiesTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxLiabilitiesTypeDomain" xlink:to="ec_CurrentTaxLiabilitiesTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxLiabilitiesTypeDomain_lbl" xml:lang="en-US">Current Tax Liabilities Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentIncomeTaxLiabilitiesMember" xlink:label="ec_CurrentIncomeTaxLiabilitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentIncomeTaxLiabilitiesMember" xlink:to="ec_CurrentIncomeTaxLiabilitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentIncomeTaxLiabilitiesMember_lbl" xml:lang="en-US">This member stands for income tax payable.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentIncomeTaxLiabilitiesMember_lbl" xml:lang="en-US">Income tax payable [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentIncomeTaxLiabilitiesMember_lbl" xml:lang="en-US">Income tax payable</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IndustryAndCommerceTaxMember" xlink:label="ec_IndustryAndCommerceTaxMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IndustryAndCommerceTaxMember" xlink:to="ec_IndustryAndCommerceTaxMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IndustryAndCommerceTaxMember_lbl" xml:lang="en-US">This member stands for industry and commerce tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IndustryAndCommerceTaxMember_lbl" xml:lang="en-US">Industry and commerce Tax [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IndustryAndCommerceTaxMember_lbl" xml:lang="en-US">Industry and commerce tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalTaxAndSurchargeOnGasolineMember" xlink:label="ec_NationalTaxAndSurchargeOnGasolineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalTaxAndSurchargeOnGasolineMember" xlink:to="ec_NationalTaxAndSurchargeOnGasolineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalTaxAndSurchargeOnGasolineMember_lbl" xml:lang="en-US">This member stands for national tax and surcharge on gasoline.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalTaxAndSurchargeOnGasolineMember_lbl" xml:lang="en-US">National tax and surcharge on gasoline [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalTaxAndSurchargeOnGasolineMember_lbl" xml:lang="en-US">National tax and surcharge on gasoline</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CarbonTaxMember" xlink:label="ec_CarbonTaxMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CarbonTaxMember" xlink:to="ec_CarbonTaxMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CarbonTaxMember_lbl" xml:lang="en-US">Carbon tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxMember" xlink:label="ec_ValueAddedTaxMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxMember" xlink:to="ec_ValueAddedTaxMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxMember_lbl" xml:lang="en-US">Value added tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherCurrentTaxLiabiltiesMember" xlink:label="ec_OtherCurrentTaxLiabiltiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherCurrentTaxLiabiltiesMember" xlink:to="ec_OtherCurrentTaxLiabiltiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherCurrentTaxLiabiltiesMember_lbl" xml:lang="en-US">Other taxes, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTaxLiabilitiesTypeAxis" xlink:label="ec_NonCurrentTaxLiabilitiesTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTaxLiabilitiesTypeAxis" xlink:to="ec_NonCurrentTaxLiabilitiesTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTaxLiabilitiesTypeAxis_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTaxLiabilitiesTypeAxis_lbl" xml:lang="en-US">Non Current Tax Liabilities Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTaxLiabilitiesTypeDomain" xlink:label="ec_NonCurrentTaxLiabilitiesTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTaxLiabilitiesTypeDomain" xlink:to="ec_NonCurrentTaxLiabilitiesTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTaxLiabilitiesTypeDomain_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTaxLiabilitiesTypeDomain_lbl" xml:lang="en-US">Non Current Tax Liabilities Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredTaxLiabilitiesMember" xlink:label="ec_DeferredTaxLiabilitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredTaxLiabilitiesMember" xlink:to="ec_DeferredTaxLiabilitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredTaxLiabilitiesMember_lbl" xml:lang="en-US">This member stands for deferred tax liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredTaxLiabilitiesMember_lbl" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxMember" xlink:label="ec_IncomeTaxMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxMember" xlink:to="ec_IncomeTaxMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeTaxMember_lbl" xml:lang="en-US">This member stands for income tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxMember_lbl" xml:lang="en-US">Income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfTaxesLineItems" xlink:label="ec_DisclosureOfTaxesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfTaxesLineItems" xlink:to="ec_DisclosureOfTaxesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfTaxesLineItems_lbl" xml:lang="en-US">Disclosure Of Taxes [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfTaxesLineItems_lbl" xml:lang="en-US">Taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxAssetsAbstract" xlink:label="ec_CurrentTaxAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxAssetsAbstract" xlink:to="ec_CurrentTaxAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US">Definition not available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US">Current tax assets [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US">Tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTaxLiabilitiesAbstract" xlink:label="ec_CurrentTaxLiabilitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTaxLiabilitiesAbstract" xlink:to="ec_CurrentTaxLiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US">Definition not available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US">Current tax liabilities [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US">Tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutIncomeTaxTable" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutIncomeTaxTable" xlink:to="ec_DisclosureOfDetailedInformationAboutIncomeTaxTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxTable_lbl" xml:lang="en-US">Disclosure of detailed information about income tax [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialYearAxis" xlink:label="ec_FinancialYearAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialYearAxis" xlink:to="ec_FinancialYearAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialYearAxis_lbl" xml:lang="en-US">financial Year [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialYearDomain" xlink:label="ec_FinancialYearDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialYearDomain" xlink:to="ec_FinancialYearDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialYearDomain_lbl" xml:lang="en-US">financial Year [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TwoThousandTwentyTwoAfterMember" xlink:label="ec_TwoThousandTwentyTwoAfterMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TwoThousandTwentyTwoAfterMember" xlink:to="ec_TwoThousandTwentyTwoAfterMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TwoThousandTwentyTwoAfterMember_lbl" xml:lang="en-US">2022 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TwoThousandTwentyTwoAfterMember_lbl" xml:lang="en-US">2022</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis" xlink:label="ifrs-full_GeographicalAreasAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasAxis_lbl" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain" xlink:label="ifrs-full_GeographicalAreasDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="ifrs-full_GeographicalAreasDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasDomain_lbl" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FreeTradeZoneAreaMember" xlink:label="ec_FreeTradeZoneAreaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FreeTradeZoneAreaMember" xlink:to="ec_FreeTradeZoneAreaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FreeTradeZoneAreaMember_lbl" xml:lang="en-US">Free Trade Zone Area [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FreeTradeZoneAreaMember_lbl" xml:lang="en-US">Free trade zone</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FreeTradeZoneWithLegalStabilityContractMember" xlink:label="ec_FreeTradeZoneWithLegalStabilityContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FreeTradeZoneWithLegalStabilityContractMember" xlink:to="ec_FreeTradeZoneWithLegalStabilityContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FreeTradeZoneWithLegalStabilityContractMember_lbl" xml:lang="en-US">Free trade zone with legal stability contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FreeTradeZoneWithLegalStabilityContractMember_lbl" xml:lang="en-US">Free zone Legal Stability Agreement (LSA)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_BR" xlink:label="country_BR" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_BR" xlink:to="country_BR_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_BR_lbl" xml:lang="en-US">Brazil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_BR_lbl" xml:lang="en-US">Brazil</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CL" xlink:label="country_CL" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CL" xlink:to="country_CL_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_CL_lbl" xml:lang="en-US">Chile</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_CL_lbl" xml:lang="en-US">Chile</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="country_PE" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_PE" xlink:to="country_PE_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_PE_lbl" xml:lang="en-US">PERU</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_PE_lbl" xml:lang="en-US">Peru</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US" xlink:label="country_US" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_US" xlink:to="country_US_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_US_lbl" xml:lang="en-US">United States Of America Country [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_US_lbl" xml:lang="en-US">USA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="country_US_lbl" xml:lang="en-US">United States</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CO" xlink:label="country_CO" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CO" xlink:to="country_CO_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_CO_lbl" xml:lang="en-US">Colombia</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_CO_lbl" xml:lang="en-US">Colombia</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="country_CO_lbl" xml:lang="en-US">Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolGroupMember" xlink:label="ec_EcopetrolGroupMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolGroupMember" xlink:to="ec_EcopetrolGroupMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolGroupMember_lbl" xml:lang="en-US">Ecopetrol Group</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolSaAndHocolPetroleumMember" xlink:label="ec_EcopetrolSaAndHocolPetroleumMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolSaAndHocolPetroleumMember" xlink:to="ec_EcopetrolSaAndHocolPetroleumMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolSaAndHocolPetroleumMember_lbl" xml:lang="en-US">This member stands for ecopetrol s.a and hocol.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolSaAndHocolPetroleumMember_lbl" xml:lang="en-US">Ecopetrol SA And Hocol Petroleum [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolSaAndHocolPetroleumMember_lbl" xml:lang="en-US">Ecopetrol S.A. and Hocol</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis" xlink:label="srt_StatementScenarioAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_StatementScenarioAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementScenarioAxis_lbl" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain" xlink:label="srt_ScenarioUnspecifiedDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioUnspecifiedDomain" xlink:to="srt_ScenarioUnspecifiedDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember" xlink:label="srt_ScenarioForecastMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioForecastMember" xlink:to="srt_ScenarioForecastMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScenarioForecastMember_lbl" xml:lang="en-US">Forecast [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScenarioForecastMember_lbl" xml:lang="en-US">Forecast</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems" xlink:to="ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about income tax [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutIncomeTaxLineItems_lbl" xml:lang="en-US">Taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ApplicableTaxRate" xlink:label="ifrs-full_ApplicableTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ApplicableTaxRate" xlink:to="ifrs-full_ApplicableTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US">Applicable tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US">Statutory tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US">Nominal income rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PresumtiveIncomeTax" xlink:label="ec_PresumtiveIncomeTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PresumtiveIncomeTax" xlink:to="ec_PresumtiveIncomeTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PresumtiveIncomeTax_lbl" xml:lang="en-US">The percentage of presumptive income tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PresumtiveIncomeTax_lbl" xml:lang="en-US">Presumptive income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AverageEffectiveTaxRate" xlink:label="ifrs-full_AverageEffectiveTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AverageEffectiveTaxRate" xlink:to="ifrs-full_AverageEffectiveTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl" xml:lang="en-US">Average effective tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl" xml:lang="en-US">Effective tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SurchargeTaxRate" xlink:label="ec_SurchargeTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SurchargeTaxRate" xlink:to="ec_SurchargeTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SurchargeTaxRate_lbl" xml:lang="en-US">Percentage of surcharge tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SurchargeTaxRate_lbl" xml:lang="en-US">Surcharge Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SurchargeTaxRate_lbl" xml:lang="en-US">Tax surcharge rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PresumptiveIncomePercentageOnBeginningEquity" xlink:label="ec_PresumptiveIncomePercentageOnBeginningEquity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PresumptiveIncomePercentageOnBeginningEquity" xlink:to="ec_PresumptiveIncomePercentageOnBeginningEquity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PresumptiveIncomePercentageOnBeginningEquity_lbl" xml:lang="en-US">The presumptive income percentage on the amount of equity on beginning period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PresumptiveIncomePercentageOnBeginningEquity_lbl" xml:lang="en-US">Presumptive income, percentage on beginning equity</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ApplicableTaxRateForFixedAssets" xlink:label="ec_ApplicableTaxRateForFixedAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ApplicableTaxRateForFixedAssets" xlink:to="ec_ApplicableTaxRateForFixedAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ApplicableTaxRateForFixedAssets_lbl" xml:lang="en-US">The applicable tax rate for fixed assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ApplicableTaxRateForFixedAssets_lbl" xml:lang="en-US">Applicable Tax Rate For Fixed Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ApplicableTaxRateForFixedAssets_lbl" xml:lang="en-US">Applicable tax rate for fixed assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfTaxLossesCarryForward" xlink:label="ec_DescriptionOfTaxLossesCarryForward" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfTaxLossesCarryForward" xlink:to="ec_DescriptionOfTaxLossesCarryForward_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfTaxLossesCarryForward_lbl" xml:lang="en-US">The description of information regarding tax losses carry forward.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfTaxLossesCarryForward_lbl" xml:lang="en-US">Description of tax losses carry forward</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges" xlink:label="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges" xlink:to="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges_lbl" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate, actuarial calculation, provisions, acquisitions and projected surcharges.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges_lbl" xml:lang="en-US">Tax Effect From Change In Tax Rate, Actuarial Calculation, Provisions, Acquisitions and Projected Surcharges</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxEffectFromChangeInTaxRateActuarialCalculationProvisionsAcquisitionsAndProjectedSurcharges_lbl" xml:lang="en-US">Projected Surcharges</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" xlink:label="ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" xlink:to="ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes_lbl" xml:lang="en-US">Current tax expense (income), related to Pillar Two income taxes</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes_lbl" xml:lang="en-US">Pillar Two income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:to="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" xml:lang="en-US">Current tax expense (income) and adjustments for current tax of prior periods</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" xml:lang="en-US">Current income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods" xlink:label="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods" xlink:to="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods_lbl" xml:lang="en-US">The amount of deferred tax expense (income) and adjustments for the deferred tax of prior periods.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods_lbl" xml:lang="en-US">Deferred Tax Expense Income And Adjustments For Deferred Tax Of Prior Periods</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods_lbl" xml:lang="en-US">Deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredIncomeTaxDueToChangeInTaxRate" xlink:label="ec_DeferredIncomeTaxDueToChangeInTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredIncomeTaxDueToChangeInTaxRate" xlink:to="ec_DeferredIncomeTaxDueToChangeInTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredIncomeTaxDueToChangeInTaxRate_lbl" xml:lang="en-US">The amount of deferred income tax arising due to change in tax rates.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredIncomeTaxDueToChangeInTaxRate_lbl" xml:lang="en-US">Deferred Income Tax Due To Change In Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DeferredIncomeTaxDueToChangeInTaxRate_lbl" xml:lang="en-US">Deferred income tax - rate change</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod" xlink:label="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod" xlink:to="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod_lbl" xml:lang="en-US">Adjustments of tax expense (income) recognised in the period for current tax and deferred tax of prior periods.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod_lbl" xml:lang="en-US">Adjustments For Current And Deferred Tax Of Prior Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriod_lbl" xml:lang="en-US">Adjustments to prior years' current and deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RevenueOfGrowth" xlink:label="ec_RevenueOfGrowth" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RevenueOfGrowth" xlink:to="ec_RevenueOfGrowth_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RevenueOfGrowth_lbl" xml:lang="en-US">The amount of revenue of growth.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RevenueOfGrowth_lbl" xml:lang="en-US">Revenue Of Growth</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RevenueOfGrowth_lbl" xml:lang="en-US">Growth of revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExchangeRateOnLoans" xlink:label="ec_ExchangeRateOnLoans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExchangeRateOnLoans" xlink:to="ec_ExchangeRateOnLoans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExchangeRateOnLoans_lbl" xml:lang="en-US">The amount of exchange rate on loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExchangeRateOnLoans_lbl" xml:lang="en-US">Exchange Rate on Loans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExchangeRateOnLoans_lbl" xml:lang="en-US">Exchange rate effect in deferred income tax variation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:to="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" xml:lang="en-US">Tax expense (income) at applicable tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" xml:lang="en-US">Income tax at statutory rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:label="ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract" xlink:to="ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract_lbl" xml:lang="en-US">Reconciliation of accounting profit multiplied by applicable tax rates [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract_lbl" xml:lang="en-US">Effective tax rate reconciliation items:</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency" xlink:label="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency" xlink:to="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency_lbl" xml:lang="en-US">The amount that represents the effect of non-monetary assets and liabilities measured in different functional currency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency_lbl" xml:lang="en-US">Effective Tax Rate Of Non-Monetary Assets And Liabilities Measured In Different Functional Currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EffectiveTaxRateOfNonMonetaryAssetsAndLiabilitiesMeasuredInDifferentFunctionalCurrency_lbl" xml:lang="en-US">Effect of non-monetary assets and liabilities measured in different functional currency</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" xml:lang="en-US">Tax effect of expense not deductible in determining taxable profit (tax loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" xml:lang="en-US">Non-deductible expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectFromChangeInTaxRate" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectFromChangeInTaxRate" xlink:to="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" xml:lang="en-US">Tax effect from change in tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" xml:lang="en-US">Rate differential adjustment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:label="ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:to="ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_lbl" xml:lang="en-US">Tax effect of revenues exempt from taxation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_lbl" xml:lang="en-US">Non-taxable income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxEffectOfPriorYearsCurrentAndDeferredTax" xlink:label="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax" xlink:to="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax_lbl" xml:lang="en-US">Tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from adjustments for the current tax and deferred tax of prior periods. [Refer: Average effective tax rate; Applicable tax rate; Adjustments for current tax of prior periods]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax_lbl" xml:lang="en-US">Tax Effect of Prior Years Current and Deferred Tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_TaxEffectOfPriorYearsCurrentAndDeferredTax_lbl" xml:lang="en-US">Prior years' taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfForeignTaxRates" xlink:label="ifrs-full_TaxEffectOfForeignTaxRates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectOfForeignTaxRates" xlink:to="ifrs-full_TaxEffectOfForeignTaxRates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectOfForeignTaxRates_lbl" xml:lang="en-US">Tax effect of foreign tax rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TaxEffectOfForeignTaxRates_lbl" xml:lang="en-US">Foreign currency translation and exchange difference</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsIncomeTaxCreditsAndAdjustments" xlink:label="ec_IfrsIncomeTaxCreditsAndAdjustments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsIncomeTaxCreditsAndAdjustments" xlink:to="ec_IfrsIncomeTaxCreditsAndAdjustments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsIncomeTaxCreditsAndAdjustments_lbl" xml:lang="en-US">A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsIncomeTaxCreditsAndAdjustments_lbl" xml:lang="en-US">IFRS Income Tax Credits and Adjustments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsIncomeTaxCreditsAndAdjustments_lbl" xml:lang="en-US">Tax discounts and tax credit</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree" xlink:label="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree" xlink:to="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree_lbl" xml:lang="en-US">The amount representing the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to variation in equity accounting method in acquiree.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree_lbl" xml:lang="en-US">Tax Effect From Variation In Equity Accounting Method In Acquiree</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxEffectFromVariationInEquityAccountingMethodInAcquiree_lbl" xml:lang="en-US">Others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxEffectOfRecognitionOfShares" xlink:label="ec_TaxEffectOfRecognitionOfShares" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxEffectOfRecognitionOfShares" xlink:to="ec_TaxEffectOfRecognitionOfShares_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxEffectOfRecognitionOfShares_lbl" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to effect of recognition of shares.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxEffectOfRecognitionOfShares_lbl" xml:lang="en-US">Tax Effect of Recognition of Shares</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxEffectOfRecognitionOfShares_lbl" xml:lang="en-US">Effect of recognition of shares of McDermott International, Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:to="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" xml:lang="en-US">Other tax effects for reconciliation between accounting profit and tax expense (income)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" xml:lang="en-US">Effect of tax reform</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInEffectiveTaxRate" xlink:label="ec_IncreaseDecreaseInEffectiveTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInEffectiveTaxRate" xlink:to="ec_IncreaseDecreaseInEffectiveTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInEffectiveTaxRate_lbl" xml:lang="en-US">Percentage of increase (decrease) in effective tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInEffectiveTaxRate_lbl" xml:lang="en-US">Increase (Decrease) in Effective Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseInEffectiveTaxRate_lbl" xml:lang="en-US">Effective tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome" xlink:label="ifrs-full_CurrentTaxExpenseIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncome" xlink:to="ifrs-full_CurrentTaxExpenseIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxExpenseIncome_lbl" xml:lang="en-US">Current tax expense (income)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncome_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncome" xlink:label="ifrs-full_DeferredTaxExpenseIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncome" xlink:to="ifrs-full_DeferredTaxExpenseIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl" xml:lang="en-US">Deferred tax expense (income)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl" xml:lang="en-US">Deferred</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets" xlink:label="ifrs-full_DeferredTaxAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="ifrs-full_DeferredTaxAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxAssets_lbl" xml:lang="en-US">Deferred tax assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxAssets_lbl" xml:lang="en-US">Deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="ifrs-full_DeferredTaxLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilities" xlink:to="ifrs-full_DeferredTaxLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilities_lbl" xml:lang="en-US">Deferred Tax Liabilities, Net</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DeferredTaxLiabilities_lbl" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDeferredTaxAssets" xlink:label="ifrs-full_NetDeferredTaxAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDeferredTaxAssets" xlink:to="ifrs-full_NetDeferredTaxAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetDeferredTaxAssets_lbl" xml:lang="en-US">Net deferred tax assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NetDeferredTaxAssets_lbl" xml:lang="en-US">Net deferred income tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_lbl" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_lbl" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedTaxLossesMember" xlink:label="ifrs-full_UnusedTaxLossesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnusedTaxLossesMember" xlink:to="ifrs-full_UnusedTaxLossesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnusedTaxLossesMember_lbl" xml:lang="en-US">Loss carry forwards</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvisionsMember" xlink:label="ec_ProvisionsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvisionsMember" xlink:to="ec_ProvisionsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvisionsMember_lbl" xml:lang="en-US">Provisions [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvisionsMember_lbl" xml:lang="en-US">Provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EmployeeCompensationBenefitsMember" xlink:label="ec_EmployeeCompensationBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EmployeeCompensationBenefitsMember" xlink:to="ec_EmployeeCompensationBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EmployeeCompensationBenefitsMember_lbl" xml:lang="en-US">This member stands for employee compensation benefits.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EmployeeCompensationBenefitsMember_lbl" xml:lang="en-US">Employee Compensation Benefits [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EmployeeCompensationBenefitsMember_lbl" xml:lang="en-US">Employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssetsMember" xlink:label="ifrs-full_OtherAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherAssetsMember" xlink:to="ifrs-full_OtherAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherAssetsMember_lbl" xml:lang="en-US">Other Assets [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherAssetsMember_lbl" xml:lang="en-US">Other Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherAssetsMember_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AccountsPayablesMember" xlink:label="ec_AccountsPayablesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AccountsPayablesMember" xlink:to="ec_AccountsPayablesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AccountsPayablesMember_lbl" xml:lang="en-US">Accounts payable</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentsInventoriesAndIntangibleAssetsMember" xlink:label="ec_InvestmentsInventoriesAndIntangibleAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentsInventoriesAndIntangibleAssetsMember" xlink:to="ec_InvestmentsInventoriesAndIntangibleAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentsInventoriesAndIntangibleAssetsMember_lbl" xml:lang="en-US">Others.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentsInventoriesAndIntangibleAssetsMember_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillMember" xlink:label="ifrs-full_GoodwillMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GoodwillMember" xlink:to="ifrs-full_GoodwillMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GoodwillMember_lbl" xml:lang="en-US">Goodwill Member</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GoodwillMember_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" xml:lang="en-US">Intangibles Assets Other Than Goodwill [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" xml:lang="en-US">Intangibles</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansAndBorrowingsMember" xlink:label="ec_LoansAndBorrowingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansAndBorrowingsMember" xlink:to="ec_LoansAndBorrowingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansAndBorrowingsMember_lbl" xml:lang="en-US">This member represents loans and borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansAndBorrowingsMember_lbl" xml:lang="en-US">Loans And Borrowings [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_LoansAndBorrowingsMember_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OthersLiabilitiesMember" xlink:label="ec_OthersLiabilitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OthersLiabilitiesMember" xlink:to="ec_OthersLiabilitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OthersLiabilitiesMember_lbl" xml:lang="en-US">This member stands for other liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OthersLiabilitiesMember_lbl" xml:lang="en-US">Others Liabilities [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OthersLiabilitiesMember_lbl" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AccountsReceivablesMember" xlink:label="ec_AccountsReceivablesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AccountsReceivablesMember" xlink:to="ec_AccountsReceivablesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AccountsReceivablesMember_lbl" xml:lang="en-US">Accounts receivable</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PropertyPlantAndEquipmentAndNaturalAndEnvironmentalResourcesMember" xlink:label="ec_PropertyPlantAndEquipmentAndNaturalAndEnvironmentalResourcesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PropertyPlantAndEquipmentAndNaturalAndEnvironmentalResourcesMember" xlink:to="ec_PropertyPlantAndEquipmentAndNaturalAndEnvironmentalResourcesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PropertyPlantAndEquipmentAndNaturalAndEnvironmentalResourcesMember_lbl" xml:lang="en-US">Property plant and equipment and Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolAmericaIncMember" xlink:label="ec_EcopetrolAmericaIncMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolAmericaIncMember" xlink:to="ec_EcopetrolAmericaIncMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolAmericaIncMember_lbl" xml:lang="en-US">Ecopetrol USA Inc.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolAmericaIncMember_lbl" xml:lang="en-US">Ecopertrol USA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsenttiaMbMember" xlink:label="ec_EsenttiaMbMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsenttiaMbMember" xlink:to="ec_EsenttiaMbMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsenttiaMbMember_lbl" xml:lang="en-US">This member stands for Esenttia MB.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsenttiaMbMember_lbl" xml:lang="en-US">Esenttia MB [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EsenttiaMbMember_lbl" xml:lang="en-US">Esenttia MB</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvercolsaSaMember" xlink:label="ec_InvercolsaSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvercolsaSaMember" xlink:to="ec_InvercolsaSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvercolsaSaMember_lbl" xml:lang="en-US">Invercolsa S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InvercolsaSaMember_lbl" xml:lang="en-US">Invercolsa S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDeLaAraucanaAndTransamericanMember" xlink:label="ec_RutaDeLaAraucanaAndTransamericanMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDeLaAraucanaAndTransamericanMember" xlink:to="ec_RutaDeLaAraucanaAndTransamericanMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDeLaAraucanaAndTransamericanMember_lbl" xml:lang="en-US">This member stands for Ruta de la Araucana and Transamerican.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDeLaAraucanaAndTransamericanMember_lbl" xml:lang="en-US">Ruta de la Araucana and Transamerican [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDeLaAraucanaAndTransamericanMember_lbl" xml:lang="en-US">Ruta de la Araucana and Transamerican</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaCosteraMember" xlink:label="ec_RutaCosteraMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaCosteraMember" xlink:to="ec_RutaCosteraMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaCosteraMember_lbl" xml:lang="en-US">This member stands for Ruta Costera.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaCosteraMember_lbl" xml:lang="en-US">Ruta Costera</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelMaipoMember" xlink:label="ec_RutaDelMaipoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelMaipoMember" xlink:to="ec_RutaDelMaipoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelMaipoMember_lbl" xml:lang="en-US">Ruta del Maipo [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelMaipoMember_lbl" xml:lang="en-US">Ruta del Maipo</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelLoaMember" xlink:label="ec_RutaDelLoaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelLoaMember" xlink:to="ec_RutaDelLoaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelLoaMember_lbl" xml:lang="en-US">This member stands for Ruta Del Loa.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelLoaMember_lbl" xml:lang="en-US">Ruta del Loa</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset" xlink:label="ifrs-full_DeferredTaxLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilityAsset" xlink:to="ifrs-full_DeferredTaxLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Deferred tax liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Deferred tax assets (liabilities)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset" xlink:label="ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset" xlink:to="ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Increase (decrease) in deferred tax liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Deferred tax asset (liability)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredTaxAssetsOperatingLossCarryForwardsNotSubjectToExpiration" xlink:label="ec_DeferredTaxAssetsOperatingLossCarryForwardsNotSubjectToExpiration" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredTaxAssetsOperatingLossCarryForwardsNotSubjectToExpiration" xlink:to="ec_DeferredTaxAssetsOperatingLossCarryForwardsNotSubjectToExpiration_lbl" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredTaxAssetsOperatingLossCarryForwardsNotSubjectToExpiration_lbl" xml:lang="en-US">Deferred Tax Assets Operating Loss Carry Forwards Not Subject To Expiration</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Deferred tax expense (income) recognised in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Deferred tax recognized in profit or loss</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Foreign currency translation</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Actuarial valuation gains (losses), Pre-tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Recognized in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome" xlink:label="ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Income tax relating to remeasurements of defined benefit plans included in other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Actuarial valuation gains (losses), Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesFutureCrudeOilExports" xlink:label="ec_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesFutureCrudeOilExports" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">The amount of other comprehensive income, before tax, arising from gains or losses on hedging instruments designated in cash flow hedging relationships for forecast future crude oil export transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Other Comprehensive Income, Before Tax Cash Flow Hedges, Future Crude Oil Exports</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Cash flow hedging for future crude oil exports, Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxRelatingToCashFlowHedgesFutureCrudeOilExports" xlink:label="ec_IncomeTaxRelatingToCashFlowHedgesFutureCrudeOilExports" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeTaxRelatingToCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">The amount of income tax expense or benefit recognised in other comprehensive income relating to gains or losses on hedging instruments designated in cash flow hedging relationships for forecast future crude oil export transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxRelatingToCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Income Tax Relating To Cash Flow Hedges Future Crude Oil Exports</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_IncomeTaxRelatingToCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Cash flow hedging for future crude oil exports, Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, arising from gains or losses on hedging instruments designated in cash flow hedging relationships for forecast future crude oil export transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Other Comprehensive Income, Net of Tax Cash Flow Hedges, Future Crude Oil Exports</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxCashFlowHedgesFutureCrudeOilExports_lbl" xml:lang="en-US">Cash flow hedging for future crude oil exports, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations_lbl" xml:lang="en-US">Other comprehensive income, before tax, hedges of net investments in foreign operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation, Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome" xlink:label="ifrs-full_IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Income tax relating to hedges of net investments in foreign operations of other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation, Deferred tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Deferred income tax (Note 10)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_lbl" xml:lang="en-US">Other comprehensive income, net of tax, hedges of net investments in foreign operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_lbl" xml:lang="en-US">Hedge of a net investment in a foreign operation, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges_lbl" xml:lang="en-US">Hedge with derivative instruments, Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:label="ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Income tax relating to cash flow hedges of other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Hedge with derivative instruments, Deferred tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Taxes</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_lbl" xml:lang="en-US">Other comprehensive income, net of tax, cash flow hedges</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_lbl" xml:lang="en-US">Hedge with derivative instruments, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Valuation of financial instruments at fair value, Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:label="ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Valuation of financial instruments at fair value, Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_lbl" xml:lang="en-US">Valuation of financial instruments at fair value, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_lbl" xml:lang="en-US">Other comprehensive income, before tax, exchange differences on translation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_lbl" xml:lang="en-US">Exchange difference</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_lbl" xml:lang="en-US">Foreign currency translation, Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:label="ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:to="ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Foreign currency translation, Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome" xlink:label="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome" xlink:to="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, after reclassification adjustments, related to exchange differences when financial statements of foreign currency translation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Income Tax Relating to Exchange Differences on Foreign Currency Translation Included in Other Comprehensive Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_IncomeTaxRelatingToExchangeDifferencesOnForeignCurrencyTranslationIncludedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Foreign currency translation, After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax_lbl" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, before tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax_lbl" xml:lang="en-US">Pre-tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax" xlink:label="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax" xlink:to="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax_lbl" xml:lang="en-US">It represents the amount of income tax relating to components of other comprehensive income of after tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax_lbl" xml:lang="en-US">Income Tax Relating To Components Of Other Comprehensive Income Of After Tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeOfAfterTax_lbl" xml:lang="en-US">After tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelBosqueChileMember" xlink:label="ec_RutaDelBosqueChileMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelBosqueChileMember" xlink:to="ec_RutaDelBosqueChileMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelBosqueChileMember_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelBosqueChileMember_lbl" xml:lang="en-US">Ruta Del Bosque (Chile) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDelBosqueChileMember_lbl" xml:lang="en-US">Ruta del Bosque (Chile)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredTaxAssetNotRecognised" xlink:label="ec_DeferredTaxAssetNotRecognised" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredTaxAssetNotRecognised" xlink:to="ec_DeferredTaxAssetNotRecognised_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredTaxAssetNotRecognised_lbl" xml:lang="en-US">Represents the amount of deferred tax asset not recognised.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredTaxAssetNotRecognised_lbl" xml:lang="en-US">Deferred Tax Asset Not Recognised</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DeferredTaxAssetNotRecognised_lbl" xml:lang="en-US">Deferred tax assets not recognised</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumTaxRate" xlink:label="ec_MinimumTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumTaxRate" xlink:to="ec_MinimumTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumTaxRate_lbl" xml:lang="en-US">Percentage of minimum tax rate and will be the result of dividing the adjusted tax on the debugged net profit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumTaxRate_lbl" xml:lang="en-US">Minimum Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumTaxRate_lbl" xml:lang="en-US">Income tax rate for future years in free zones</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustedTaxExpenseIncome" xlink:label="ec_AdjustedTaxExpenseIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustedTaxExpenseIncome" xlink:to="ec_AdjustedTaxExpenseIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustedTaxExpenseIncome_lbl" xml:lang="en-US">The amount of tax expense (income) after adjustments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustedTaxExpenseIncome_lbl" xml:lang="en-US">Adjusted Tax Expense (Income)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdjustedTaxExpenseIncome_lbl" xml:lang="en-US">Total Tax Adjusted</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome" xlink:label="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome" xlink:to="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome_lbl" xml:lang="en-US">The amount of permanent differences enshrined in law and that increase net income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome_lbl" xml:lang="en-US">Permanent Differences Enshrined In Law And That Increase Net Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PermanentDifferencesEnshrinedInLawAndThatIncreaseNetIncome_lbl" xml:lang="en-US">Permanent differences enshrined in law and that increase net income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit" xlink:label="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit" xlink:to="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit_lbl" xml:lang="en-US">The amount of income that does not constitute income or occasional profit, which affects accounting or financial profit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit_lbl" xml:lang="en-US">Income That Does Not Constitute Income or Occasional Profit, Which Affects Accounting or Financial Profit</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_IncomeThatDoesNotConstituteIncomeOrOccasionalProfitWhichAffectsAccountingOrFinancialProfit_lbl" xml:lang="en-US">Income that does not constitute income or occasional profit, which affects accounting or financial profit</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation" xlink:label="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation" xlink:to="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation_lbl" xml:lang="en-US">The amount of exempt income due to the application of treaties to avoid double taxation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation_lbl" xml:lang="en-US">Exempt Income Due to the Application of Treaties to Avoid Double Taxation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_ExemptIncomeDueToApplicationOfTreatiesToAvoidDoubleTaxation_lbl" xml:lang="en-US">Exempt income due to the application of treaties to avoid double taxation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod" xlink:label="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod" xlink:to="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod_lbl" xml:lang="en-US">The offsetting of tax losses or excesses of presumptive income taken in the taxable year and that did not affect the accounting profit of the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod_lbl" xml:lang="en-US">Offsetting of Tax Losses or Excesses of Presumptive Income Taken in the Taxable Year and That Did Not Affect the Accounting Profit of the Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OffsettingOfTaxLossesOrExcessesOfPresumptiveIncomeTakenInTaxableYearAndThatDidNotAffectAccountingProfitOfPeriod_lbl" xml:lang="en-US">Offsetting of tax losses or excesses of presumptive income taken in the taxable year and that did not affect the accounting profit of the year</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustedProfitLoss" xlink:label="ec_AdjustedProfitLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustedProfitLoss" xlink:to="ec_AdjustedProfitLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustedProfitLoss_lbl" xml:lang="en-US">The amount of adjusted profit (loss).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustedProfitLoss_lbl" xml:lang="en-US">Adjusted Profit (Loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AdjustedProfitLoss_lbl" xml:lang="en-US">Total Adjusted Profit</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustedTaxRate" xlink:label="ec_AdjustedTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustedTaxRate" xlink:to="ec_AdjustedTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustedTaxRate_lbl" xml:lang="en-US">The percentage of adjusted tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustedTaxRate_lbl" xml:lang="en-US">Adjusted Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdjustedTaxRate_lbl" xml:lang="en-US">Adjusted tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxTypeAxis" xlink:label="ec_IncomeTaxTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxTypeAxis" xlink:to="ec_IncomeTaxTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxTypeAxis_lbl" xml:lang="en-US">Income Tax Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncomeTaxTypeDomain" xlink:label="ec_IncomeTaxTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncomeTaxTypeDomain" xlink:to="ec_IncomeTaxTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncomeTaxTypeDomain_lbl" xml:lang="en-US">Income Tax Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DividendTaxRateMember" xlink:label="ec_DividendTaxRateMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DividendTaxRateMember" xlink:to="ec_DividendTaxRateMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DividendTaxRateMember_lbl" xml:lang="en-US">Dividend Tax Rate [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DividendTaxRateMember_lbl" xml:lang="en-US">Dividend Tax Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_WithholdingDividendTaxRate" xlink:label="ec_WithholdingDividendTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_WithholdingDividendTaxRate" xlink:to="ec_WithholdingDividendTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_WithholdingDividendTaxRate_lbl" xml:lang="en-US">Withholding dividend tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_WithholdingDividendTaxRate_lbl" xml:lang="en-US">Withholding Dividend Tax Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CaptialDebtRatio" xlink:label="ec_CaptialDebtRatio" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CaptialDebtRatio" xlink:to="ec_CaptialDebtRatio_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CaptialDebtRatio_lbl" xml:lang="en-US">Ratio of capital to debt.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CaptialDebtRatio_lbl" xml:lang="en-US">Captial Debt Ratio</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CaptialDebtRatio_lbl" xml:lang="en-US">Capital debt ratio</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ApplicableTaxRateOld" xlink:label="ec_ApplicableTaxRateOld" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ApplicableTaxRateOld" xlink:to="ec_ApplicableTaxRateOld_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ApplicableTaxRateOld_lbl" xml:lang="en-US">The applicable income tax rate before update.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ApplicableTaxRateOld_lbl" xml:lang="en-US">Applicable Tax Rate, Old</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ApplicableTaxRateOld_lbl" xml:lang="en-US">Applicable income tax rate before update</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfIndustryAndCommerceTaxDiscount" xlink:label="ec_PercentageOfIndustryAndCommerceTaxDiscount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfIndustryAndCommerceTaxDiscount" xlink:to="ec_PercentageOfIndustryAndCommerceTaxDiscount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfIndustryAndCommerceTaxDiscount_lbl" xml:lang="en-US">The percentage of industry and commerce tax discount.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfIndustryAndCommerceTaxDiscount_lbl" xml:lang="en-US">Percentage Of Industry And Commerce Tax Discount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumPercentageOfValueAddedTaxWithholdingRate" xlink:label="ec_MaximumPercentageOfValueAddedTaxWithholdingRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumPercentageOfValueAddedTaxWithholdingRate" xlink:to="ec_MaximumPercentageOfValueAddedTaxWithholdingRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumPercentageOfValueAddedTaxWithholdingRate_lbl" xml:lang="en-US">Represents the maximum percentage of value added tax (VAT) withholding rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumPercentageOfValueAddedTaxWithholdingRate_lbl" xml:lang="en-US">Maximum Percentage of Value-Added Tax Withholding Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MaximumPercentageOfValueAddedTaxWithholdingRate_lbl" xml:lang="en-US">Maximum Percentage of Value-Added Tax Withholding Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxRate" xlink:label="ec_ValueAddedTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxRate" xlink:to="ec_ValueAddedTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxRate_lbl" xml:lang="en-US">Percentage of value added tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxRate_lbl" xml:lang="en-US">Value Added Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxRate_lbl" xml:lang="en-US">Vat rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfAuditBenefitTerms" xlink:label="ec_DescriptionOfAuditBenefitTerms" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfAuditBenefitTerms" xlink:to="ec_DescriptionOfAuditBenefitTerms_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfAuditBenefitTerms_lbl" xml:lang="en-US">Description of audit benefit terms.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfAuditBenefitTerms_lbl" xml:lang="en-US">Description Of Audit Benefit Terms</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DescriptionOfAuditBenefitTerms_lbl" xml:lang="en-US">Description of audit benefit terms</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FreeZoneTaxRate" xlink:label="ec_FreeZoneTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FreeZoneTaxRate" xlink:to="ec_FreeZoneTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FreeZoneTaxRate_lbl" xml:lang="en-US">Percentage of tax rate at free zones.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FreeZoneTaxRate_lbl" xml:lang="en-US">Free Zone Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FreeZoneTaxRate_lbl" xml:lang="en-US">Free zone tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones" xlink:label="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones" xlink:to="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones_lbl" xml:lang="en-US">The minimum tax rate for foreign legal entities without residence in the country and Special Economic and Social Zones.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones_lbl" xml:lang="en-US">Minimum Tax Rate for Foreign Legal Entities Without Residence In The Country and Economic and Social Zones</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumTaxRateForForeignLegalEntitiesWithoutResidenceInCountryAndEconomicAndSocialZones_lbl" xml:lang="en-US">Percentage of income tax rate for foreign legal entities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumTaxRateForZomacAndIncomeFromHotelServices" xlink:label="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices" xlink:to="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices_lbl" xml:lang="en-US">The minimum tax rate for ZOMAC and  income from hotel services.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices_lbl" xml:lang="en-US">Minimum Tax Rate for ZOMAC and Income from Hotel Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumTaxRateForZomacAndIncomeFromHotelServices_lbl" xml:lang="en-US">Percentage of ZOMAC and income from hotel service</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment" xlink:label="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment" xlink:to="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment_lbl" xml:lang="en-US">The minimum tax rate for publishing companies with the exclusive corporate purpose of publishing books, industrial and mixed economy companies in the Government.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment_lbl" xml:lang="en-US">Minimum Tax Rate for Publishing Companies With The Exclusive Corporate Purpose Of Publishing Books, Industrial And Mixed Economy Companies In The Government</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumTaxRateForPublishingCompaniesWithExclusiveCorporatePurposeOfPublishingBooksIndustrialAndMixedEconomyCompaniesInGovernment_lbl" xml:lang="en-US">Percentage of minimum tax rate for publishing companies</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects" xlink:label="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects" xlink:to="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects_lbl" xml:lang="en-US">Represents the percentage of right to discount of value invested in specified tax projects provide by National Council of Tax Benefits in Science and Technology.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects_lbl" xml:lang="en-US">Percentage of Right to Discount of the Value Invested in Tax Projects</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfRightToDiscountOfValueInvestedInTaxProjects_lbl" xml:lang="en-US">Percentage of right to discount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome" xlink:label="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome" xlink:to="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome_lbl" xml:lang="en-US">Percentage of maximum deduction rate allowed per year of ordinary liquid income before deducting the special deductions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome_lbl" xml:lang="en-US">Maximum Deduction Rate Per Year of Ordinary Liquid Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MaximumDeductionRatePerYearOfOrdinaryLiquidIncome_lbl" xml:lang="en-US">Maximum deduction rate per year</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IndustryAndCommerceTaxDeductionRate" xlink:label="ec_IndustryAndCommerceTaxDeductionRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IndustryAndCommerceTaxDeductionRate" xlink:to="ec_IndustryAndCommerceTaxDeductionRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IndustryAndCommerceTaxDeductionRate_lbl" xml:lang="en-US">Percentage of deduction rate on industry and commerce tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IndustryAndCommerceTaxDeductionRate_lbl" xml:lang="en-US">Industry and Commerce Tax Deduction Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_WithholdingDividendTaxRateOnIncome" xlink:label="ec_WithholdingDividendTaxRateOnIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_WithholdingDividendTaxRateOnIncome" xlink:to="ec_WithholdingDividendTaxRateOnIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_WithholdingDividendTaxRateOnIncome_lbl" xml:lang="en-US">Percentage of dividend tax rate as withholding tax on income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_WithholdingDividendTaxRateOnIncome_lbl" xml:lang="en-US">Withholding Dividend Tax Rate on Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_WithholdingDividendTaxRateOnIncome_lbl" xml:lang="en-US">Percentage of dividend tax rate as withholding tax on income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SpecialTaxRate" xlink:label="ec_SpecialTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SpecialTaxRate" xlink:to="ec_SpecialTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SpecialTaxRate_lbl" xml:lang="en-US">The percentage of statutory tax rate applicable to the first sale or export of hydrocarbons and coal under Decree 0175 of February 2025 in Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SpecialTaxRate_lbl" xml:lang="en-US">Special Tax Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StampTaxRate" xlink:label="ec_StampTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StampTaxRate" xlink:to="ec_StampTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StampTaxRate_lbl" xml:lang="en-US">The percentage of stamp tax rate applicable to qualifying public or private documents under Colombian tax law.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StampTaxRate_lbl" xml:lang="en-US">Stamp Tax Rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ThresholdForLevyingStampTax" xlink:label="ec_ThresholdForLevyingStampTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ThresholdForLevyingStampTax" xlink:to="ec_ThresholdForLevyingStampTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ThresholdForLevyingStampTax_lbl" xml:lang="en-US">Minimum value threshold established under Colombian tax regulations above which the stamp tax becomes applicable, based on the amount specified in Tax Value Units (UVT) or its monetary equivalent for the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ThresholdForLevyingStampTax_lbl" xml:lang="en-US">Threshold for Levying Stamp Tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StampTaxThresholdAmount" xlink:label="ec_StampTaxThresholdAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StampTaxThresholdAmount" xlink:to="ec_StampTaxThresholdAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StampTaxThresholdAmount_lbl" xml:lang="en-US">Monetary equivalent of the stamp tax threshold expressed in Colombian pesos for the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StampTaxThresholdAmount_lbl" xml:lang="en-US">Stamp Tax Threshold Amount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SpecialTaxFiscalStabilityRate" xlink:label="ec_SpecialTaxFiscalStabilityRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SpecialTaxFiscalStabilityRate" xlink:to="ec_SpecialTaxFiscalStabilityRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SpecialTaxFiscalStabilityRate_lbl" xml:lang="en-US">Statutory tax rate applicable to the special tax for fiscal stability levied on the first sale within or from the national territory and on exports, as established by Colombian emergency tax regulations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SpecialTaxFiscalStabilityRate_lbl" xml:lang="en-US">Special Tax, Fiscal Stability Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SpecialTaxFiscalStabilityRate_lbl" xml:lang="en-US">Special tax fiscal stability rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:label="ifrs-full_MiscellaneousCurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:to="ifrs-full_MiscellaneousCurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousCurrentAssetsAbstract_lbl" xml:lang="en-US">Miscellaneous current assets [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MiscellaneousCurrentAssetsAbstract_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPrepaidExpenses" xlink:label="ifrs-full_CurrentPrepaidExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPrepaidExpenses" xlink:to="ifrs-full_CurrentPrepaidExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPrepaidExpenses_lbl" xml:lang="en-US">Current prepaid expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentPrepaidExpenses_lbl" xml:lang="en-US">Prepaid expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentInvestments" xlink:label="ifrs-full_CurrentInvestments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentInvestments" xlink:to="ifrs-full_CurrentInvestments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentInvestments_lbl" xml:lang="en-US">Current investments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentInvestments_lbl" xml:lang="en-US">Partners in joint operations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TrustFundsCurrent" xlink:label="ec_TrustFundsCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TrustFundsCurrent" xlink:to="ec_TrustFundsCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TrustFundsCurrent_lbl" xml:lang="en-US">Represents the amount of trust funds classified as current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TrustFundsCurrent_lbl" xml:lang="en-US">Trust Funds, Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TrustFundsCurrent_lbl" xml:lang="en-US">Trust funds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentAdvancesToContractorsAndSuppliers" xlink:label="ec_CurrentAdvancesToContractorsAndSuppliers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentAdvancesToContractorsAndSuppliers" xlink:to="ec_CurrentAdvancesToContractorsAndSuppliers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentAdvancesToContractorsAndSuppliers_lbl" xml:lang="en-US">The amount of current advances made to contractors and suppliers before goods or services are received.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentAdvancesToContractorsAndSuppliers_lbl" xml:lang="en-US">Current Advances to Contractors and Suppliers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentAdvancesToContractorsAndSuppliers_lbl" xml:lang="en-US">Advanced payments to contractors and suppliers</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentAssets" xlink:label="ifrs-full_OtherCurrentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentAssets" xlink:to="ifrs-full_OtherCurrentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentAssets_lbl" xml:lang="en-US">Other current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentAssets_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:to="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_lbl" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale or as held for distribution to owners</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_lbl" xml:lang="en-US">Non-current assets available for sale</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:label="ifrs-full_MiscellaneousNoncurrentAssetsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:to="ifrs-full_MiscellaneousNoncurrentAssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousNoncurrentAssetsAbstract_lbl" xml:lang="en-US">Miscellaneous non-current assets [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_MiscellaneousNoncurrentAssetsAbstract_lbl" xml:lang="en-US">Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AbandonmentFund" xlink:label="ec_AbandonmentFund" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AbandonmentFund" xlink:to="ec_AbandonmentFund_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AbandonmentFund_lbl" xml:lang="en-US">Represents the amount of funds set aside, restricted, or held in a designated account to cover future costs associated with the decommissioning, dismantling, abandonment, and site restoration of long-lived assets (such as oil and gas wells, pipelines, or production facilities). These funds may be legally or contractually restricted and are typically accumulated over the useful life of the related assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AbandonmentFund_lbl" xml:lang="en-US">Abandonment Fund</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AbandonmentFund_lbl" xml:lang="en-US">Abandonment fund</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansToEmployeesNonCurrent" xlink:label="ec_LoansToEmployeesNonCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansToEmployeesNonCurrent" xlink:to="ec_LoansToEmployeesNonCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansToEmployeesNonCurrent_lbl" xml:lang="en-US">Represents the carrying amount of loans and advances granted to employees that are not expected to be settled within twelve months after the reporting period. These loans are classified as non-current financial assets and are measured in accordance with IFRS 9 Financial Instruments, typically at amortized cost using the effective interest method, unless designated otherwise. This balance includes principal outstanding plus accrued interest, net of expected credit loss allowances.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansToEmployeesNonCurrent_lbl" xml:lang="en-US">Loans to Employees, Non-Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoansToEmployeesNonCurrent_lbl" xml:lang="en-US">Employee loans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TrustFundsNoncurrent" xlink:label="ec_TrustFundsNoncurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TrustFundsNoncurrent" xlink:to="ec_TrustFundsNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TrustFundsNoncurrent_lbl" xml:lang="en-US">Represents the amount of trust funds classified as noncurrent.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TrustFundsNoncurrent_lbl" xml:lang="en-US">Trust Funds Noncurrent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TrustFundsNoncurrent_lbl" xml:lang="en-US">Trust funds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_JudicialDepositsAndAttachments" xlink:label="ec_JudicialDepositsAndAttachments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_JudicialDepositsAndAttachments" xlink:to="ec_JudicialDepositsAndAttachments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_JudicialDepositsAndAttachments_lbl" xml:lang="en-US">The amount of judicial deposits and attachments as at reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_JudicialDepositsAndAttachments_lbl" xml:lang="en-US">Judicial deposits and attachments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_JudicialDepositsAndAttachments_lbl" xml:lang="en-US">Judicial deposits and attachments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomers" xlink:label="ifrs-full_LoansAndAdvancesToCustomers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LoansAndAdvancesToCustomers" xlink:to="ifrs-full_LoansAndAdvancesToCustomers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LoansAndAdvancesToCustomers_lbl" xml:lang="en-US">Loans and advances to customers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LoansAndAdvancesToCustomers_lbl" xml:lang="en-US">Advanced payments and deposits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentAssets" xlink:label="ifrs-full_OtherNoncurrentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentAssets" xlink:to="ifrs-full_OtherNoncurrentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentAssets_lbl" xml:lang="en-US">Other non-current assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentAssets_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RenewableEnergyGenerationCompaniesAcquisitionMember" xlink:label="ec_RenewableEnergyGenerationCompaniesAcquisitionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RenewableEnergyGenerationCompaniesAcquisitionMember" xlink:to="ec_RenewableEnergyGenerationCompaniesAcquisitionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RenewableEnergyGenerationCompaniesAcquisitionMember_lbl" xml:lang="en-US">Represents the business combination involving the acquisition of a group of renewable energy generation and related service companies, through which the reporting entity obtained control and recognized the transaction in accordance with IFRS 3 Business Combinations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RenewableEnergyGenerationCompaniesAcquisitionMember_lbl" xml:lang="en-US">Renewable Energy Generation Companies Acquisition [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RenewableEnergyGenerationCompaniesAcquisitionMember_lbl" xml:lang="en-US">Acquisition of a group of renewable energy generation companies in Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfCompaniesAcquired" xlink:label="ec_NumberOfCompaniesAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfCompaniesAcquired" xlink:to="ec_NumberOfCompaniesAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfCompaniesAcquired_lbl" xml:lang="en-US">Represents the total number of legal entities acquired as part of the business combination in which the reporting entity obtained control in accordance with IFRS 3 Business Combinations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfCompaniesAcquired_lbl" xml:lang="en-US">Number of Companies Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfCompaniesAcquired_lbl" xml:lang="en-US">Number of companies acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfRenewableEnergyGenerationCompaniesAcquired" xlink:label="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired" xlink:to="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired_lbl" xml:lang="en-US">Represents the number of acquired entities whose principal activity is the generation of renewable energy, including solar or wind power generation assets, as part of the business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired_lbl" xml:lang="en-US">Number of Renewable Energy Generation Companies Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfRenewableEnergyGenerationCompaniesAcquired_lbl" xml:lang="en-US">Number of renewable energy generation companies acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfAdministrativeSupportCompaniesAcquired" xlink:label="ec_NumberOfAdministrativeSupportCompaniesAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfAdministrativeSupportCompaniesAcquired" xlink:to="ec_NumberOfAdministrativeSupportCompaniesAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfAdministrativeSupportCompaniesAcquired_lbl" xml:lang="en-US">Represents the number of acquired entities that primarily provide administrative, operational, or support services to the group, rather than directly generating revenue from core energy production activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfAdministrativeSupportCompaniesAcquired_lbl" xml:lang="en-US">Number of Administrative Support Companies Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfAdministrativeSupportCompaniesAcquired_lbl" xml:lang="en-US">Number of administrative companies acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RenewableEnergyGenerationCapacityAcquired" xlink:label="ec_RenewableEnergyGenerationCapacityAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RenewableEnergyGenerationCapacityAcquired" xlink:to="ec_RenewableEnergyGenerationCapacityAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RenewableEnergyGenerationCapacityAcquired_lbl" xml:lang="en-US">Represents the total installed or expected electricity generation capacity attributable to renewable energy assets acquired as part of a business combination, measured in gigawatts (GW), over which the reporting entity obtained control.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RenewableEnergyGenerationCapacityAcquired_lbl" xml:lang="en-US">Renewable Energy Generation Capacity Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RenewableEnergyGenerationCapacityAcquired_lbl" xml:lang="en-US">Energy generation capacity acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InstalledCapacityOfAcquiredPowerPlant" xlink:label="ec_InstalledCapacityOfAcquiredPowerPlant" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InstalledCapacityOfAcquiredPowerPlant" xlink:to="ec_InstalledCapacityOfAcquiredPowerPlant_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InstalledCapacityOfAcquiredPowerPlant_lbl" xml:lang="en-US">Represents the installed electricity generation capacity of an individual power plant acquired as part of a business combination, measured in megawatts (MW).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InstalledCapacityOfAcquiredPowerPlant_lbl" xml:lang="en-US">Installed Capacity of Acquired Power Plant</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InstalledCapacityOfAcquiredPowerPlant_lbl" xml:lang="en-US">Installed capacity of acquired plant</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:label="ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:to="ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_lbl" xml:lang="en-US">Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_lbl" xml:lang="en-US">Acquisition-related costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract" xlink:to="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract_lbl" xml:lang="en-US">Amounts Recognised As Of Acquisition Date For Each Major Class Of Assets Acquired Abstract</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAbstract_lbl" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Cash and cash equivalents recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:label="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:to="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for trade and other receivables acquired in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Trade And Other Receivables Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Property, plant and equipment recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate" xlink:label="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate" xlink:to="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for right-of-use assets acquired in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Right of use Assets Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RightOfUseAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Right of use assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherAssetsRecognisedAsOfAcquisitionDate" xlink:label="ec_OtherAssetsRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherAssetsRecognisedAsOfAcquisitionDate" xlink:to="ec_OtherAssetsRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for other assets acquired in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Other Assets Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AssetsRecognisedAsOfAcquisitionDate" xlink:label="ec_AssetsRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AssetsRecognisedAsOfAcquisitionDate" xlink:to="ec_AssetsRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for total assets acquired in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Assets Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_AssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Total assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract" xlink:to="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract_lbl" xml:lang="en-US">Amounts Recognised As Of Acquisition Date For Liabilities Assumed [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountsRecognisedAsOfAcquisitionDateForLiabilitiesAssumedAbstract_lbl" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Borrowings recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Trade and other payables recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Deferred tax liabilities recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for other liabilities assumed in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Other Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ec_LiabilitiesRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ec_LiabilitiesRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">The amount recognised as of the acquisition date for total liabilities assumed in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Liabilities Recognised As Of Acquisition Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_LiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Total liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:to="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" xml:lang="en-US">Identifiable assets acquired (liabilities assumed)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" xml:lang="en-US">Fair value of identifiable net assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Goodwill recognised as of acquisition date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US">Goodwill arising from the acquisition (Note 19)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesTable" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesTable" xlink:to="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesTable_lbl" xml:lang="en-US">Disclosure of Investments in associates and joint ventures [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaDoMadeiraSaMember" xlink:label="ec_InterligaoEltricaDoMadeiraSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaDoMadeiraSaMember" xlink:to="ec_InterligaoEltricaDoMadeiraSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaDoMadeiraSaMember_lbl" xml:lang="en-US">The information pertaining to Interligao Eltrica Do Madeira SA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaDoMadeiraSaMember_lbl" xml:lang="en-US">Interligao Eltrica Do Madeira SA [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligaoEltricaDoMadeiraSaMember_lbl" xml:lang="en-US">Interligao Eltrica do Madeira S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member" xlink:label="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member" xlink:to="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member_lbl" xml:lang="en-US">Represents information pertaining to Transmissora Aliana de Energia Eltrica S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member_lbl" xml:lang="en-US">Transmissora Alianca De Energia Eletrica S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TransmissoraAlianaDeEnergiaEletricaS.a.Member_lbl" xml:lang="en-US">Transmissora Aliana de Energia Eltrica S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquionEnergyLimitedMember" xlink:label="ec_EquionEnergyLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquionEnergyLimitedMember" xlink:to="ec_EquionEnergyLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquionEnergyLimitedMember_lbl" xml:lang="en-US">This member stands for Equion Energa Limited.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquionEnergyLimitedMember_lbl" xml:lang="en-US">Equion Energa Limited [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EquionEnergyLimitedMember_lbl" xml:lang="en-US">Equion Energa Limited</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaIvaS.aMember" xlink:label="ec_InterligaoEltricaIvaS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaIvaS.aMember" xlink:to="ec_InterligaoEltricaIvaS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaIvaS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Iva S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaIvaS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Ivai S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligaoEltricaIvaS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Iva S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaGaranhunsS.aMember" xlink:label="ec_InterligaoEltricaGaranhunsS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaGaranhunsS.aMember" xlink:to="ec_InterligaoEltricaGaranhunsS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaGaranhunsS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Garanhuns S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaGaranhunsS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Garanhuns S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligaoEltricaGaranhunsS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Garanhuns S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaParaguauS.aMember" xlink:label="ec_InterligaoEltricaParaguauS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaParaguauS.aMember" xlink:to="ec_InterligaoEltricaParaguauS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaParaguauS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Paraguau S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaParaguauS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Paraguacu S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligaoEltricaParaguauS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Paraguau S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaAimorsS.aMember" xlink:label="ec_InterligaoEltricaAimorsS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaAimorsS.aMember" xlink:to="ec_InterligaoEltricaAimorsS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaAimorsS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Aimors S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaAimorsS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Aimores S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligaoEltricaAimorsS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Aimors S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConexinKimalLoAguirreS.aMember" xlink:label="ec_ConexinKimalLoAguirreS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConexinKimalLoAguirreS.aMember" xlink:to="ec_ConexinKimalLoAguirreS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConexinKimalLoAguirreS.aMember_lbl" xml:lang="en-US">Represents information pertaining to Conexin Kimal Lo Aguirre S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConexinKimalLoAguirreS.aMember_lbl" xml:lang="en-US">Conexin Kimal Lo Aguirre S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConexinKimalLoAguirreS.aMember_lbl" xml:lang="en-US">Conexion Kimal Lo Aguirre S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcodieselColombiaSaMember" xlink:label="ec_EcodieselColombiaSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcodieselColombiaSaMember" xlink:to="ec_EcodieselColombiaSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcodieselColombiaSaMember_lbl" xml:lang="en-US">This member stands for Ecodiesel Colombia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcodieselColombiaSaMember_lbl" xml:lang="en-US">Ecodiesel Colombia S.A. [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcodieselColombiaSaMember_lbl" xml:lang="en-US">Ecodiesel Colombia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConsorcioElctricoYapayS.aMember" xlink:label="ec_ConsorcioElctricoYapayS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConsorcioElctricoYapayS.aMember" xlink:to="ec_ConsorcioElctricoYapayS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConsorcioElctricoYapayS.aMember_lbl" xml:lang="en-US">Its represents Consorcio Elctrico Yapay S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConsorcioElctricoYapayS.aMember_lbl" xml:lang="en-US">Consorcio Elctrico Yapay S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConsorcioElctricoYapayS.aMember_lbl" xml:lang="en-US">Consorcio Elctrico Yapay S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransnexaS.a.E.m.a.Member" xlink:label="ec_TransnexaS.a.E.m.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransnexaS.a.E.m.a.Member" xlink:to="ec_TransnexaS.a.E.m.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TransnexaS.a.E.m.a.Member_lbl" xml:lang="en-US">This member stands for transnexa S.A. E.M.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransnexaS.a.E.m.a.Member_lbl" xml:lang="en-US">Transnexa S.A. E.M.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TransnexaS.a.E.m.a.Member_lbl" xml:lang="en-US">Transnexa S.A. E.M.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PaEnergaParaLaPazMember" xlink:label="ec_PaEnergaParaLaPazMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PaEnergaParaLaPazMember" xlink:to="ec_PaEnergaParaLaPazMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PaEnergaParaLaPazMember_lbl" xml:lang="en-US">This member stands for PA Energa para la paz.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PaEnergaParaLaPazMember_lbl" xml:lang="en-US">PA Energa Para La Paz [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PaEnergaParaLaPazMember_lbl" xml:lang="en-US">PA Energa para la paz</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexinElctricaColombiaPanamS.a.Member" xlink:label="ec_InterconexinElctricaColombiaPanamS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexinElctricaColombiaPanamS.a.Member" xlink:to="ec_InterconexinElctricaColombiaPanamS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexinElctricaColombiaPanamS.a.Member_lbl" xml:lang="en-US">This member stands for Interconexin Elctrica Colombia Panam S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexinElctricaColombiaPanamS.a.Member_lbl" xml:lang="en-US">Interconexion Electrica Colombia Panama S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexinElctricaColombiaPanamS.a.Member_lbl" xml:lang="en-US">Interconexion Electrica Colombia Panama S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DerivexS.aMember" xlink:label="ec_DerivexS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DerivexS.aMember" xlink:to="ec_DerivexS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DerivexS.aMember_lbl" xml:lang="en-US">This member stands for Derivex S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DerivexS.aMember_lbl" xml:lang="en-US">Derivex S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DerivexS.aMember_lbl" xml:lang="en-US">Derivex S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:label="ifrs-full_SignificantInvestmentsInAssociatesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:to="ifrs-full_SignificantInvestmentsInAssociatesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantInvestmentsInAssociatesAxis_lbl" xml:lang="en-US">Associates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:label="ifrs-full_SignificantInvestmentsInAssociatesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:to="ifrs-full_SignificantInvestmentsInAssociatesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantInvestmentsInAssociatesDomain_lbl" xml:lang="en-US">Associates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasesDelCaribeS.a.E.s.p.Member" xlink:label="ec_GasesDelCaribeS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasesDelCaribeS.a.E.s.p.Member" xlink:to="ec_GasesDelCaribeS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasesDelCaribeS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for Gases del Caribe S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasesDelCaribeS.a.E.s.p.Member_lbl" xml:lang="en-US">Gases del Caribe S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasesDelCaribeS.a.E.s.p.Member_lbl" xml:lang="en-US">Gases del Caribe S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AtpTowerHoldingsMember" xlink:label="ec_AtpTowerHoldingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AtpTowerHoldingsMember" xlink:to="ec_AtpTowerHoldingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AtpTowerHoldingsMember_lbl" xml:lang="en-US">Represents information pertaining to ATP Tower Holdings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AtpTowerHoldingsMember_lbl" xml:lang="en-US">ATP Tower Holdings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AtpTowerHoldingsMember_lbl" xml:lang="en-US">ATP Tower Holdings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasNaturalDelOrienteS.a.E.s.p.Member" xlink:label="ec_GasNaturalDelOrienteS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasNaturalDelOrienteS.a.E.s.p.Member" xlink:to="ec_GasNaturalDelOrienteS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasNaturalDelOrienteS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for Gas Natural del Oriente S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasNaturalDelOrienteS.a.E.s.p.Member_lbl" xml:lang="en-US">Gas Natural del Oriente S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasNaturalDelOrienteS.a.E.s.p.Member_lbl" xml:lang="en-US">Gas Natural del Oriente S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasesDeLaGuajiraS.a.E.s.p.Member" xlink:label="ec_GasesDeLaGuajiraS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasesDeLaGuajiraS.a.E.s.p.Member" xlink:to="ec_GasesDeLaGuajiraS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasesDeLaGuajiraS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for Gases de la Guajira S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasesDeLaGuajiraS.a.E.s.p.Member_lbl" xml:lang="en-US">Gases de la Guajira S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasesDeLaGuajiraS.a.E.s.p.Member_lbl" xml:lang="en-US">Gases de la Guajira S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_E2EnergaEficienteS.a.E.s.p.Member" xlink:label="ec_E2EnergaEficienteS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_E2EnergaEficienteS.a.E.s.p.Member" xlink:to="ec_E2EnergaEficienteS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_E2EnergaEficienteS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for E2 Energa Eficiente S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_E2EnergaEficienteS.a.E.s.p.Member_lbl" xml:lang="en-US">E2 Energa Eficiente S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_E2EnergaEficienteS.a.E.s.p.Member_lbl" xml:lang="en-US">E2 Energia Eficiente S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExtrucolS.a.Member" xlink:label="ec_ExtrucolS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExtrucolS.a.Member" xlink:to="ec_ExtrucolS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExtrucolS.a.Member_lbl" xml:lang="en-US">This member stands for Extrucol S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExtrucolS.a.Member_lbl" xml:lang="en-US">Extrucol S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExtrucolS.a.Member_lbl" xml:lang="en-US">Extrucol S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ServiportSaMember" xlink:label="ec_ServiportSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ServiportSaMember" xlink:to="ec_ServiportSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ServiportSaMember_lbl" xml:lang="en-US">This member stands for Serviport S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ServiportSaMember_lbl" xml:lang="en-US">Serviport S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ServiportSaMember_lbl" xml:lang="en-US">Serviport S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SociedadPortuariaOlefinasYDerivadosS.a.Member" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member" xlink:to="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member_lbl" xml:lang="en-US">This member stands for Sociedad Portuaria Olefinas y Derivados S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member_lbl" xml:lang="en-US">Sociedad Portuaria Olefinas y Derivados S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosS.a.Member_lbl" xml:lang="en-US">Sociedad Portuaria Olefinas y Derivados S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems" xlink:to="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems_lbl" xml:lang="en-US">Disclosure of Investments in associates and joint ventures [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems_lbl" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentsInJointVenturesAbstract" xlink:label="ec_InvestmentsInJointVenturesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentsInJointVenturesAbstract" xlink:to="ec_InvestmentsInJointVenturesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentsInJointVenturesAbstract_lbl" xml:lang="en-US">Investments in joint ventures [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentsInJointVenturesAbstract_lbl" xml:lang="en-US">Joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInJointVentures" xlink:label="ifrs-full_InvestmentsInJointVentures" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsInJointVentures" xlink:to="ifrs-full_InvestmentsInJointVentures_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsInJointVentures_lbl" xml:lang="en-US">Investments in joint ventures</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InvestmentsInJointVentures_lbl" xml:lang="en-US">Investments in joint ventures</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InvestmentsInJointVentures_lbl" xml:lang="en-US">Equity of the joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentsInAssociatesAbstract" xlink:label="ec_InvestmentsInAssociatesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentsInAssociatesAbstract" xlink:to="ec_InvestmentsInAssociatesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentsInAssociatesAbstract_lbl" xml:lang="en-US">Investments in associates [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentsInAssociatesAbstract_lbl" xml:lang="en-US">Associates</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInAssociates" xlink:label="ifrs-full_InvestmentsInAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsInAssociates" xlink:to="ifrs-full_InvestmentsInAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsInAssociates_lbl" xml:lang="en-US">Investments in associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InvestmentsInAssociates_lbl" xml:lang="en-US">Investments in associates</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssociatesMember" xlink:label="ifrs-full_AssociatesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssociatesMember" xlink:to="ifrs-full_AssociatesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssociatesMember_lbl" xml:lang="en-US">Associates [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssociatesMember_lbl" xml:lang="en-US">Associates</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesMember" xlink:label="ifrs-full_JointVenturesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_JointVenturesMember" xlink:to="ifrs-full_JointVenturesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_JointVenturesMember_lbl" xml:lang="en-US">Joint Ventures [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_JointVenturesMember_lbl" xml:lang="en-US">Joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates" xlink:label="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates" xlink:to="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates_lbl" xml:lang="en-US">The amount of increase (decrease) in investments in joint ventures and associates through capitalization.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates_lbl" xml:lang="en-US">Increase (Decrease) Through Capitalization, Investment In Joint Ventures And Associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughCapitalizationInvestmentInJointVenturesAndAssociates_lbl" xml:lang="en-US">Capital contributions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EffectsOfEquityMethodInvestmentsByTypeAbstract" xlink:label="ec_EffectsOfEquityMethodInvestmentsByTypeAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EffectsOfEquityMethodInvestmentsByTypeAbstract" xlink:to="ec_EffectsOfEquityMethodInvestmentsByTypeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EffectsOfEquityMethodInvestmentsByTypeAbstract_lbl" xml:lang="en-US">Effects of equity method investments by type [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_EffectsOfEquityMethodInvestmentsByTypeAbstract_lbl" xml:lang="en-US">Effects of equity method through:</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid" xlink:label="ifrs-full_DividendsPaid" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaid" xlink:to="ifrs-full_DividendsPaid_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaid_lbl" xml:lang="en-US">Dividends recognised as distributions to owners.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DividendsPaid_lbl" xml:lang="en-US">Dividends declared</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture" xlink:label="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture" xlink:to="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture_lbl" xml:lang="en-US">The amount of impairment loss or reversal of impairment loss recognised from investments in associates and joint venture.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture_lbl" xml:lang="en-US">Impairment Loss Reversal Of Impairment Loss On Investments In Associates And Joint Venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ImpairmentLossReversalOfImpairmentLossOnInvestmentsInAssociatesAndJointVenture_lbl" xml:lang="en-US">Impairment recovery</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsReceived" xlink:label="ifrs-full_DividendsReceived" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsReceived" xlink:to="ifrs-full_DividendsReceived_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsReceived_lbl" xml:lang="en-US">Dividends received</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DividendsReceived_lbl" xml:lang="en-US">Dividends received</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaDoMadeiraMember" xlink:label="ec_InterligaoEltricaDoMadeiraMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaDoMadeiraMember" xlink:to="ec_InterligaoEltricaDoMadeiraMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaDoMadeiraMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica do Madeira.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaDoMadeiraMember_lbl" xml:lang="en-US">Interligacao Eletrica do Madeira [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InterligaoEltricaDoMadeiraMember_lbl" xml:lang="en-US">Interligao Eltrica do Madeira</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransmissoraAlianaDeEnergiaEltricaMember" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransmissoraAlianaDeEnergiaEltricaMember" xlink:to="ec_TransmissoraAlianaDeEnergiaEltricaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaMember_lbl" xml:lang="en-US">Transmissora Aliana de Energia Eltrica [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaMember_lbl" xml:lang="en-US">Transmissora Aliana de Energia Eltrica</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaMember_lbl" xml:lang="en-US">Transmissora Aliana de Energia Eltrica</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionalInformationAbstract" xlink:label="ifrs-full_AdditionalInformationAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionalInformationAbstract" xlink:to="ifrs-full_AdditionalInformationAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionalInformationAbstract_lbl" xml:lang="en-US">Additional information [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdditionalInformationAbstract_lbl" xml:lang="en-US">Other complementary information</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExpenseAndOtherAdministrative" xlink:label="ec_ExpenseAndOtherAdministrative" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExpenseAndOtherAdministrative" xlink:to="ec_ExpenseAndOtherAdministrative_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExpenseAndOtherAdministrative_lbl" xml:lang="en-US">It represents expense and other administrative.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExpenseAndOtherAdministrative_lbl" xml:lang="en-US">Expense and Other Administrative</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExpenseAndOtherAdministrative_lbl" xml:lang="en-US">Other operating expenses, net</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ExpenseAndOtherAdministrative_lbl" xml:lang="en-US">Administration expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense" xlink:label="ifrs-full_DepreciationAndAmortisationExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationAndAmortisationExpense" xlink:to="ifrs-full_DepreciationAndAmortisationExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationAndAmortisationExpense_lbl" xml:lang="en-US">Depreciation and amortisation expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DepreciationAndAmortisationExpense_lbl" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ShareOfOwnershipInterestInJointVenture" xlink:label="ec_ShareOfOwnershipInterestInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ShareOfOwnershipInterestInJointVenture" xlink:to="ec_ShareOfOwnershipInterestInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ShareOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">The portion of entity's ownership interest in joint venture's equity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ShareOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">Share of ownership interest in joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ShareOfOwnershipInterestInJointVenture_lbl" xml:lang="en-US">Ecopetrol's ownership</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AccumulatedAdditionsInvestmentsInJointVenture" xlink:label="ec_AccumulatedAdditionsInvestmentsInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AccumulatedAdditionsInvestmentsInJointVenture" xlink:to="ec_AccumulatedAdditionsInvestmentsInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AccumulatedAdditionsInvestmentsInJointVenture_lbl" xml:lang="en-US">The amount accumulated of additional investment in joint ventures as on the date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AccumulatedAdditionsInvestmentsInJointVenture_lbl" xml:lang="en-US">Accumulated Additions, investments in joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AccumulatedAdditionsInvestmentsInJointVenture_lbl" xml:lang="en-US">Additional value of the investment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLoss" xlink:label="ifrs-full_ReversalOfImpairmentLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReversalOfImpairmentLoss" xlink:to="ifrs-full_ReversalOfImpairmentLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReversalOfImpairmentLoss_lbl" xml:lang="en-US">Reversal of impairment loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ReversalOfImpairmentLoss_lbl" xml:lang="en-US">Impairment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReversalOfImpairmentLoss_lbl" xml:lang="en-US">Recovery of impairment loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnrealizedGainOnInvestmentInJointVenture" xlink:label="ec_UnrealizedGainOnInvestmentInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnrealizedGainOnInvestmentInJointVenture" xlink:to="ec_UnrealizedGainOnInvestmentInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UnrealizedGainOnInvestmentInJointVenture_lbl" xml:lang="en-US">The amount of unrealized gain in joint venture.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnrealizedGainOnInvestmentInJointVenture_lbl" xml:lang="en-US">Unrealized Gain On Investment In Joint Venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UnrealizedGainOnInvestmentInJointVenture_lbl" xml:lang="en-US">Unrealized gain</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:label="ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod" xlink:to="ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Investments in joint ventures accounted for using equity method</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_lbl" xml:lang="en-US">Carrying amount of the investment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract" xlink:to="ec_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract_lbl" xml:lang="en-US">Property, plant, and equipment.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_lbl" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConstructionInProgressMember" xlink:label="ifrs-full_ConstructionInProgressMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ConstructionInProgressMember" xlink:to="ifrs-full_ConstructionInProgressMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ConstructionInProgressMember_lbl" xml:lang="en-US">Work in progress</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ConstructionInProgressMember_lbl" xml:lang="en-US">Construction in progress</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LandMember" xlink:label="ifrs-full_LandMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LandMember" xlink:to="ifrs-full_LandMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LandMember_lbl" xml:lang="en-US">Lands</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LandMember_lbl" xml:lang="en-US">Lands</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_WindpeshiWindProjectInLaGuajiraMember" xlink:label="ec_WindpeshiWindProjectInLaGuajiraMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_WindpeshiWindProjectInLaGuajiraMember" xlink:to="ec_WindpeshiWindProjectInLaGuajiraMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_WindpeshiWindProjectInLaGuajiraMember_lbl" xml:lang="en-US">This member stands for Windpeshi wind project in La Guajira.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_WindpeshiWindProjectInLaGuajiraMember_lbl" xml:lang="en-US">Windpeshi wind project in La Guajira [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_WindpeshiWindProjectInLaGuajiraMember_lbl" xml:lang="en-US">Windpeshi wind project in La Guajira</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_lbl" xml:lang="en-US">Accumulated depreciation and impairment losses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_lbl" xml:lang="en-US">Accumulated depreciation and impairment losses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember" xlink:label="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember" xlink:to="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember_lbl" xml:lang="en-US">Represents the Block CPO-09 from Repsol Colombia Oil &amp;amp; Gas Limited.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember_lbl" xml:lang="en-US">Block CPO-09 from Repsol Colombia Oil &amp;amp; Gas Limited [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BlockCpo09FromRepsolColombiaOilAmpGasLimitedMember_lbl" xml:lang="en-US">Block CPO-09</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Additions/capitalizations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Acquisitions through business combinations, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Acquisition of wind and solar energy companies</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment" xlink:label="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">The increase (decrease) in property, plant and equipment resulting from acquisitions through fair value adjustment in business combinations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Fair Value Adjustments in Business Combinations, Property Plant And Equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FairValueAdjustmentsInBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Fair value adjustment in business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment" xlink:to="ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase (decrease) through other changes, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_lbl" xml:lang="en-US">Abandonment cost update</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment" xlink:to="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment_lbl" xml:lang="en-US">The increase (decrease) in property, plant and equipment resulting from capitalized interest.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase decrease through capitalized interest, property plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestPropertyPlantAndEquipment_lbl" xml:lang="en-US">Capitalized financial interests</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase (decrease) through net exchange differences, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" xml:lang="en-US">Exchange differences capitalized</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Depreciation, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Depreciation expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:to="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Reversal of impairment loss recognised in profit or loss, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Recovery (loss) impairment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Disposals" xlink:label="ec_Disposals" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Disposals" xlink:to="ec_Disposals_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Disposals_lbl" xml:lang="en-US">It represents disposals.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Disposals_lbl" xml:lang="en-US">Disposals</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_Disposals_lbl" xml:lang="en-US">Disposals</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment" xlink:to="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment_lbl" xml:lang="en-US">The increase (decrease) in property, plant and equipment resulting from reversal of oil fields that does not separately disclose in the same statement or note.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase (Decrease) Through Reversal of Oil Fields, Property Plant And Equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Field reversal</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment" xlink:to="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment_lbl" xml:lang="en-US">The increase (decrease) in property, plant and equipment resulting from foreign currency translation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase decrease through foreign currency translation, property plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase (decrease) through transfers, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" xml:lang="en-US">Reclassifications/transfers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage" xlink:to="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_lbl" xml:lang="en-US">Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_lbl" xml:lang="en-US">Ifrs Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_lbl" xml:lang="en-US">Percentage of ownership interest including subsequent percentage</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfNaturalAndEnvironmentalResourcesTable" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfNaturalAndEnvironmentalResourcesTable" xlink:to="ec_DisclosureOfNaturalAndEnvironmentalResourcesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesTable_lbl" xml:lang="en-US">Disclosure of Natural and environmental resources [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:to="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_lbl" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:to="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_lbl" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NaturalAndEnvironmentalResourcesMember" xlink:label="ec_NaturalAndEnvironmentalResourcesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NaturalAndEnvironmentalResourcesMember" xlink:to="ec_NaturalAndEnvironmentalResourcesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NaturalAndEnvironmentalResourcesMember_lbl" xml:lang="en-US">Natural And Environmental Resources [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NaturalAndEnvironmentalResourcesMember_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OilAndGasInvestmentsMember" xlink:label="ec_OilAndGasInvestmentsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OilAndGasInvestmentsMember" xlink:to="ec_OilAndGasInvestmentsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OilAndGasInvestmentsMember_lbl" xml:lang="en-US">Oil and gas investments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OilAndGasInvestmentsMember_lbl" xml:lang="en-US">Oil and gas investments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AssetRetirementCostMember" xlink:label="ec_AssetRetirementCostMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AssetRetirementCostMember" xlink:to="ec_AssetRetirementCostMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AssetRetirementCostMember_lbl" xml:lang="en-US">Assets retirement obligations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AssetRetirementCostMember_lbl" xml:lang="en-US">Assets retirement obligations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExplorationAndEvaluationAssetsMember" xlink:label="ifrs-full_ExplorationAndEvaluationAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExplorationAndEvaluationAssetsMember" xlink:to="ifrs-full_ExplorationAndEvaluationAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExplorationAndEvaluationAssetsMember_lbl" xml:lang="en-US">Exploration and evaluation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExplorationAndEvaluationAssetsMember_lbl" xml:lang="en-US">Exploration and evaluation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems" xlink:to="ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems_lbl" xml:lang="en-US">Disclosure of Natural and environmental resources [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfNaturalAndEnvironmentalResourcesLineItems_lbl" xml:lang="en-US">Natural and environmental resources</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Additions other than through business combinations, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Additions/capitalizations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Acquisitions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Acquisitions through business combinations, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">CPO-09 assets in business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill" xlink:label="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill" xlink:to="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The increase (decrease) in intangible assets other than goodwill resulting from abandonment costs.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase decrease through abandonment costs, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughAbandonmentCostsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Abandonment cost update (Note 23)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill" xlink:label="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill" xlink:to="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The amount of depletion expense of intangible assets other than goodwill.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Depletion expense, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DepletionExpenseIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Depletion expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Reversal of impairment loss recognised in profit or loss, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Impairment (loss) recovery</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">(Loss) recovery of impairment (Note 18)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Disposals and retirements, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Disposals</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Retirements, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_RetirementsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Write off exploratory assets and dry wells</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill" xlink:to="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The increase (decrease) in intangible assets other than goodwill resulting from capitalized interest.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase decrease through capitalized interest, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughCapitalizedInterestIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Capitalized financial interests</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Exchange differences capitalized</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill" xlink:label="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill" xlink:to="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The increase (decrease) in intangible assets other than goodwill resulting from fair value adjustment in business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase (Decrease) Through Fair Value Adjustment in Business Combination, Intangible Assets Other Than Goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughFairValueAdjustmentInBusinessCombinationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Fair value adjustment in business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill" xlink:to="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The increase (decrease) in intangible assets other than goodwill resulting from reversal of oil fields that does not separately disclose in the same statement or note.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase (Decrease) Through Reversal of Oil Fields, Intangible Assets Other Than Goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughReversalOfOilFieldsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Field reversal</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Amortisation, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill" xlink:to="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The increase (decrease) in intangible assets other than goodwill resulting from foreign currency translation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase decrease through foreign currency translation, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughForeignCurrencyTranslationIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Increase (decrease) through transfers, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Transfers/reclassifications</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Transfers/reclassifications</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill" xlink:label="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill" xlink:to="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">The decrease in intangible assets other than goodwill resulting from disposals and retirements. [Refer: Intangible assets other than goodwill]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Disposals And Retirement Intangible Assets Other Than Goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_DisposalsAndRetirementIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Disposals</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US">Between 1 and 3 years</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear" xlink:label="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear" xlink:to="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear_lbl" xml:lang="en-US">The number of projects under exploratory wells which exceeds one year.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear_lbl" xml:lang="en-US">Number of projects under exploratory wells exceeding one year</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NumberOfProjectsUnderExploratoryWellsExceedingOneYear_lbl" xml:lang="en-US">Number of projects exceeding 1 year</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended" xlink:label="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended" xlink:to="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended_lbl" xml:lang="en-US">Aggregate number of wells of exploration and evaluation assets suspended as of the reporting date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended_lbl" xml:lang="en-US">Exploration And Evaluations Assets, Number Of Wells Suspended</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExplorationAndEvaluationsAssetsNumberOfWellsSuspended_lbl" xml:lang="en-US">Projects under 1 year of suspension</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xlink:to="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_lbl" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Ifrs_pipelinesMember" xlink:label="ec_Ifrs_pipelinesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Ifrs_pipelinesMember" xlink:to="ec_Ifrs_pipelinesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Ifrs_pipelinesMember_lbl" xml:lang="en-US">Represents the information pertaining to the pipeline member.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Ifrs_pipelinesMember_lbl" xml:lang="en-US">IFRS_Pipelines [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_Ifrs_pipelinesMember_lbl" xml:lang="en-US">Pipelines</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LandAndBuildingsMember" xlink:label="ifrs-full_LandAndBuildingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LandAndBuildingsMember" xlink:to="ifrs-full_LandAndBuildingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LandAndBuildingsMember_lbl" xml:lang="en-US">Lands and buildings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LandAndBuildingsMember_lbl" xml:lang="en-US">Lands and buildings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentMember" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentMember" xlink:to="ifrs-full_PropertyPlantAndEquipmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Plant and equipments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_VehiclesMember" xlink:label="ifrs-full_VehiclesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_VehiclesMember" xlink:to="ifrs-full_VehiclesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_VehiclesMember_lbl" xml:lang="en-US">Vehicles</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_VehiclesMember_lbl" xml:lang="en-US">Vehicles</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsMember" xlink:label="ifrs-full_RightofuseAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RightofuseAssetsMember" xlink:to="ifrs-full_RightofuseAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RightofuseAssetsMember_lbl" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RightofuseAssetsMember_lbl" xml:lang="en-US">Right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesAxis" xlink:label="ifrs-full_ClassesOfLiabilitiesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfLiabilitiesAxis" xlink:to="ifrs-full_ClassesOfLiabilitiesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfLiabilitiesAxis_lbl" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesDomain" xlink:label="ifrs-full_ClassesOfLiabilitiesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfLiabilitiesDomain" xlink:to="ifrs-full_ClassesOfLiabilitiesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfLiabilitiesDomain_lbl" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilitiesMember" xlink:label="ifrs-full_LeaseLiabilitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilitiesMember" xlink:to="ifrs-full_LeaseLiabilitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilitiesMember_lbl" xml:lang="en-US">Lease liabilities [Member}</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LeaseLiabilitiesMember_lbl" xml:lang="en-US">Lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:to="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_lbl" xml:lang="en-US">Disclosure of quantitative information about right-of-use assets [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_lbl" xml:lang="en-US">Right-of-use assets and lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RightOfUseAssetsRollforwardAbstract" xlink:label="ec_RightOfUseAssetsRollforwardAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RightOfUseAssetsRollforwardAbstract" xlink:to="ec_RightOfUseAssetsRollforwardAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RightOfUseAssetsRollforwardAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RightOfUseAssetsRollforwardAbstract_lbl" xml:lang="en-US">Right of Use Assets Rollforward [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RightOfUseAssetsRollforwardAbstract_lbl" xml:lang="en-US">Right-of-use assets rollforward</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsToRightofuseAssets" xlink:label="ifrs-full_AdditionsToRightofuseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionsToRightofuseAssets" xlink:to="ifrs-full_AdditionsToRightofuseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionsToRightofuseAssets_lbl" xml:lang="en-US">Additions to right-of-use assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionsToRightofuseAssets_lbl" xml:lang="en-US">Additions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationRightofuseAssets" xlink:label="ifrs-full_DepreciationRightofuseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationRightofuseAssets" xlink:to="ifrs-full_DepreciationRightofuseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationRightofuseAssets_lbl" xml:lang="en-US">Depreciation, right-of-use assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DepreciationRightofuseAssets_lbl" xml:lang="en-US">Depreciation of the year</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus" xlink:label="ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus" xlink:to="ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus_lbl" xml:lang="en-US">Right-of-use assets, increase (decrease) in revaluation surplus</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RightofuseAssetsIncreaseDecreaseInRevaluationSurplus_lbl" xml:lang="en-US">Remeasurements</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets" xlink:label="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets" xlink:to="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets_lbl" xml:lang="en-US">The amount of impairment profit or loss recognised in profit or loss for right-of-use assets. [Refer: Impairment loss recognised in profit or loss; Right-of-use assets]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets_lbl" xml:lang="en-US">Impairment profit or loss recognised in profit or loss, right-of-use assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentProfitOrLossRecognisedInProfitOrLossRightOfUseAssets_lbl" xml:lang="en-US">Impairment Loss (Note 18)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisposalsOfRightOfUseAssets" xlink:label="ec_DisposalsOfRightOfUseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisposalsOfRightOfUseAssets" xlink:to="ec_DisposalsOfRightOfUseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisposalsOfRightOfUseAssets_lbl" xml:lang="en-US">The decrease in right-of-use assets resulting from disposals. [Refer: Right-of-use assets]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisposalsOfRightOfUseAssets_lbl" xml:lang="en-US">Disposals Of Right Of Use Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_DisposalsOfRightOfUseAssets_lbl" xml:lang="en-US">Disposals</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets" xlink:to="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets_lbl" xml:lang="en-US">Decrease through loss of control of subsidiary, right-of-use assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryRightofuseAssets_lbl" xml:lang="en-US">Effect of loss of control in subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets_lbl" xml:lang="en-US">Increase (Decrease) Through Net Exchange Differences, Right of Use Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesRightofuseAssets_lbl" xml:lang="en-US">Exchange difference</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LeaseLiabilitiesRollforwardAbstract" xlink:label="ec_LeaseLiabilitiesRollforwardAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LeaseLiabilitiesRollforwardAbstract" xlink:to="ec_LeaseLiabilitiesRollforwardAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LeaseLiabilitiesRollforwardAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LeaseLiabilitiesRollforwardAbstract_lbl" xml:lang="en-US">Lease Liabilities Rollforward [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LeaseLiabilitiesRollforwardAbstract_lbl" xml:lang="en-US">Lease liabilities rollforward</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilities" xlink:label="ifrs-full_LeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US">Lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US">Balance at the end</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US">Balance at the beginning</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdditionsToLeaseLiabilities" xlink:label="ec_AdditionsToLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdditionsToLeaseLiabilities" xlink:to="ec_AdditionsToLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdditionsToLeaseLiabilities_lbl" xml:lang="en-US">The amount of additions to lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdditionsToLeaseLiabilities_lbl" xml:lang="en-US">Additions To Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdditionsToLeaseLiabilities_lbl" xml:lang="en-US">Additions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RemeasurementOfLeaseLiabilities" xlink:label="ec_RemeasurementOfLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RemeasurementOfLeaseLiabilities" xlink:to="ec_RemeasurementOfLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RemeasurementOfLeaseLiabilities_lbl" xml:lang="en-US">The amount of remeasurement of lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RemeasurementOfLeaseLiabilities_lbl" xml:lang="en-US">Remeasurement of Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RemeasurementOfLeaseLiabilities_lbl" xml:lang="en-US">Remeasurements (1)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisposalOfLeaseLiabilities" xlink:label="ec_DisposalOfLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisposalOfLeaseLiabilities" xlink:to="ec_DisposalOfLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisposalOfLeaseLiabilities_lbl" xml:lang="en-US">The amount of disposals of lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisposalOfLeaseLiabilities_lbl" xml:lang="en-US">Disposal of Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_DisposalOfLeaseLiabilities_lbl" xml:lang="en-US">Disposals</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceCostOnLeaseLiabilities" xlink:label="ec_FinanceCostOnLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceCostOnLeaseLiabilities" xlink:to="ec_FinanceCostOnLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceCostOnLeaseLiabilities_lbl" xml:lang="en-US">The amount of finance cost of lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceCostOnLeaseLiabilities_lbl" xml:lang="en-US">Finance Cost on Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FinanceCostOnLeaseLiabilities_lbl" xml:lang="en-US">Finance cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities" xlink:label="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities" xlink:to="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities_lbl" xml:lang="en-US">The amount of repayment of borrowings and interests of lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities_lbl" xml:lang="en-US">Repayment of Borrowings and Interests on Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_RepaymentOfBorrowingsAndInterestsOnLeaseLiabilities_lbl" xml:lang="en-US">Repayment of borrowings (capital)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PaymentOfInterestsLeaseLiabilities" xlink:label="ec_PaymentOfInterestsLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PaymentOfInterestsLeaseLiabilities" xlink:to="ec_PaymentOfInterestsLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PaymentOfInterestsLeaseLiabilities_lbl" xml:lang="en-US">The amount of repayment of borrowings and interests to lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PaymentOfInterestsLeaseLiabilities_lbl" xml:lang="en-US">Payment of Interests, Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_PaymentOfInterestsLeaseLiabilities_lbl" xml:lang="en-US">Payment of interests</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReclassificationsOrTransfersOfLeaseLiabilities" xlink:label="ec_ReclassificationsOrTransfersOfLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReclassificationsOrTransfersOfLeaseLiabilities" xlink:to="ec_ReclassificationsOrTransfersOfLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReclassificationsOrTransfersOfLeaseLiabilities_lbl" xml:lang="en-US">The amount of Reclassifications or transfers Of lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReclassificationsOrTransfersOfLeaseLiabilities_lbl" xml:lang="en-US">Reclassifications Or Transfers Of Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_ReclassificationsOrTransfersOfLeaseLiabilities_lbl" xml:lang="en-US">Transfers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities" xlink:to="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities_lbl" xml:lang="en-US">The increase (decrease) in lease liabilities resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities_lbl" xml:lang="en-US">Increase (Decrease) Through Net Exchange Differences, Lease Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseThroughNetExchangeDifferencesLeaseLiabilities_lbl" xml:lang="en-US">Exchange difference</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsTable_lbl" xml:lang="en-US">Disclosure of detailed information about intangible assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:to="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" xml:lang="en-US">Accumulated amortization and impairment losses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" xml:lang="en-US">Accumulated amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LicencesAndFranchisesMember" xlink:label="ifrs-full_LicencesAndFranchisesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LicencesAndFranchisesMember" xlink:to="ifrs-full_LicencesAndFranchisesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LicencesAndFranchisesMember_lbl" xml:lang="en-US">Licences and software</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LicencesAndFranchisesMember_lbl" xml:lang="en-US">Licenses and software</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherIntangibleAssetsMember" xlink:label="ifrs-full_OtherIntangibleAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherIntangibleAssetsMember" xlink:to="ifrs-full_OtherIntangibleAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherIntangibleAssetsMember_lbl" xml:lang="en-US">Other intangibles</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherIntangibleAssetsMember_lbl" xml:lang="en-US">Other intangibles</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionsAndRightsMember" xlink:label="ec_ConcessionsAndRightsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionsAndRightsMember" xlink:to="ec_ConcessionsAndRightsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionsAndRightsMember_lbl" xml:lang="en-US">Concessions And Rights [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionsAndRightsMember_lbl" xml:lang="en-US">Concessions and rights</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionsAndRightsMember_lbl" xml:lang="en-US">Concessions and rights</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EasementsMember" xlink:label="ec_EasementsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EasementsMember" xlink:to="ec_EasementsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EasementsMember_lbl" xml:lang="en-US">Easements [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EasementsMember_lbl" xml:lang="en-US">Easements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EasementsMember_lbl" xml:lang="en-US">Easements</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about intangible assets [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems_lbl" xml:lang="en-US">Intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTable" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTable" xlink:to="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsTable_lbl" xml:lang="en-US">Disclosure of detailed information about impairment of non-current assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentOfPropertyPlantAndEquipmentMember" xlink:label="ec_ImpairmentOfPropertyPlantAndEquipmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentOfPropertyPlantAndEquipmentMember" xlink:to="ec_ImpairmentOfPropertyPlantAndEquipmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentOfPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Impairment of Property, Plant and equipment [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentOfPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US">Property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentInJointVenturesAndAssociatesMember" xlink:label="ec_InvestmentInJointVenturesAndAssociatesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentInJointVenturesAndAssociatesMember" xlink:to="ec_InvestmentInJointVenturesAndAssociatesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentInJointVenturesAndAssociatesMember_lbl" xml:lang="en-US">Investment in associates and joint ventures [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InvestmentInJointVenturesAndAssociatesMember_lbl" xml:lang="en-US">Investment in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OthersNoncurrentAssetsMember" xlink:label="ec_OthersNoncurrentAssetsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OthersNoncurrentAssetsMember" xlink:to="ec_OthersNoncurrentAssetsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OthersNoncurrentAssetsMember_lbl" xml:lang="en-US">Others non-current assets [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OthersNoncurrentAssetsMember_lbl" xml:lang="en-US">Other non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancialStatementSegmentMember" xlink:label="ec_FinancialStatementSegmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancialStatementSegmentMember" xlink:to="ec_FinancialStatementSegmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancialStatementSegmentMember_lbl" xml:lang="en-US">Financial statement segment [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FinancialStatementSegmentMember_lbl" xml:lang="en-US">Financial statement segment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefiningAndPetrochemicalsMember" xlink:label="ec_RefiningAndPetrochemicalsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefiningAndPetrochemicalsMember" xlink:to="ec_RefiningAndPetrochemicalsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefiningAndPetrochemicalsMember_lbl" xml:lang="en-US">Refining and petrochemicals [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefiningAndPetrochemicalsMember_lbl" xml:lang="en-US">Refining and petrochemicals</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RefiningAndPetrochemicalsMember_lbl" xml:lang="en-US">Refining and Petrochemicals</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransportationAndLogisticsMember" xlink:label="ec_TransportationAndLogisticsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransportationAndLogisticsMember" xlink:to="ec_TransportationAndLogisticsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransportationAndLogisticsMember_lbl" xml:lang="en-US">Transport and logistics [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TransportationAndLogisticsMember_lbl" xml:lang="en-US">Transport and logistics</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_TransportationAndLogisticsMember_lbl" xml:lang="en-US">Transportation and Logistics</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PowerTransmissionAndRoadsSegmentMember" xlink:label="ec_PowerTransmissionAndRoadsSegmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PowerTransmissionAndRoadsSegmentMember" xlink:to="ec_PowerTransmissionAndRoadsSegmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PowerTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">This member stands for Power transmission and roads segment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PowerTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">Electric power transmission and toll roads concessions [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PowerTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">Electric power transmission and toll roads concessions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems" xlink:to="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about impairment of non-current assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutImpairmentOfNoncurrentAssetsLineItems_lbl" xml:lang="en-US">Impairment of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Impairment reversal (loss)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsTable" xlink:label="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsTable" xlink:to="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsTable_lbl" xml:lang="en-US">Detailed informations about impairment losses reversals of assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OilFieldsMember" xlink:label="ec_OilFieldsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OilFieldsMember" xlink:to="ec_OilFieldsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OilFieldsMember_lbl" xml:lang="en-US">Oilfields [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OilFieldsMember_lbl" xml:lang="en-US">Oilfields</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems" xlink:label="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems" xlink:to="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems_lbl" xml:lang="en-US">Detailed informations about impairment losses reversals of assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DetailedInformationsAboutImpairmentLossesReversalsOfAssetsLineItems_lbl" xml:lang="en-US">Impairment of long-term assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:label="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Impairment reversal (loss)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Impairment loss - exploration and production segment (reversal of impairment loss) recognized in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable" xlink:to="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable_lbl" xml:lang="en-US">Schedule disclosing detailed information about impairment losses reservals of assets exploration and production.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionTable_lbl" xml:lang="en-US">Detailed Information About Impairment Losses Reservals Of Assets Exploration And Production [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FieldsInColombiaMember" xlink:label="ec_FieldsInColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FieldsInColombiaMember" xlink:to="ec_FieldsInColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FieldsInColombiaMember_lbl" xml:lang="en-US">Fields in Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FieldsInColombiaMember_lbl" xml:lang="en-US">Oil fields in Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:to="ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_lbl" xml:lang="en-US">Individual assets or cash-generating units [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:to="ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_lbl" xml:lang="en-US">Individual assets or cash-generating units [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReversalMember" xlink:label="ec_ReversalMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReversalMember" xlink:to="ec_ReversalMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReversalMember_lbl" xml:lang="en-US">Reversal [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ReversalMember_lbl" xml:lang="en-US">Reversal</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LossMember" xlink:label="ec_LossMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LossMember" xlink:to="ec_LossMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LossMember_lbl" xml:lang="en-US">Loss [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LossMember_lbl" xml:lang="en-US">Loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems" xlink:to="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems_lbl" xml:lang="en-US">Line item represent concept detailed information about impairment losses reservals of assets exploration and production.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems_lbl" xml:lang="en-US">Detailed Information About Impairment Losses Reservals Of Assets Exploration And Production [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DetailedInformationAboutImpairmentLossesReservalsOfAssetsExplorationAndProductionLineItems_lbl" xml:lang="en-US">Impairment of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CashGeneratingUnitCarryingAmount" xlink:label="ec_CashGeneratingUnitCarryingAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CashGeneratingUnitCarryingAmount" xlink:to="ec_CashGeneratingUnitCarryingAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CashGeneratingUnitCarryingAmount_lbl" xml:lang="en-US">It represents the carrying amount of cash generating unit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CashGeneratingUnitCarryingAmount_lbl" xml:lang="en-US">Cash Generating Unit Carrying Amount</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CashGeneratingUnitCarryingAmount_lbl" xml:lang="en-US">Carrying amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:label="ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:to="ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_lbl" xml:lang="en-US">Recoverable amount of asset or cash-generating unit</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_lbl" xml:lang="en-US">Recoverable amount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentsLoss" xlink:label="ec_ImpairmentsLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentsLoss" xlink:to="ec_ImpairmentsLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentsLoss_lbl" xml:lang="en-US">The impairment loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentsLoss_lbl" xml:lang="en-US">Impairments Loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentsLoss_lbl" xml:lang="en-US">Investment in associates and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis" xlink:label="ifrs-full_MeasurementAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MeasurementAxis" xlink:to="ifrs-full_MeasurementAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MeasurementAxis_lbl" xml:lang="en-US">Measurement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="ifrs-full_MeasurementDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MeasurementDomain" xlink:to="ifrs-full_MeasurementDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MeasurementDomain_lbl" xml:lang="en-US">Measurement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AtFairValue1Member" xlink:label="ec_AtFairValue1Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AtFairValue1Member" xlink:to="ec_AtFairValue1Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AtFairValue1Member_lbl" xml:lang="en-US">Recoverable amount [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AtFairValue1Member_lbl" xml:lang="en-US">Recoverable amount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefiningAndPetrochemicalSegmentMember" xlink:label="ec_RefiningAndPetrochemicalSegmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefiningAndPetrochemicalSegmentMember" xlink:to="ec_RefiningAndPetrochemicalSegmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefiningAndPetrochemicalSegmentMember_lbl" xml:lang="en-US">Refining and Petrochemical segment [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefiningAndPetrochemicalSegmentMember_lbl" xml:lang="en-US">Refining and Petrochemical segment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets" xlink:to="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets_lbl" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, exploration and evaluation assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets_lbl" xml:lang="en-US">Impairment loss - refining and petrochemical segment (reversal of impairment loss) recognized in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossExplorationAndEvaluationAssets_lbl" xml:lang="en-US">Impairment expense (recovery)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnergyTransmissionAndRoadsSegmentMember" xlink:label="ec_EnergyTransmissionAndRoadsSegmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnergyTransmissionAndRoadsSegmentMember" xlink:to="ec_EnergyTransmissionAndRoadsSegmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EnergyTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">This member stands for energy transmission and roads segment.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnergyTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">Energy Transmission and Roads Segment [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EnergyTransmissionAndRoadsSegmentMember_lbl" xml:lang="en-US">Energy transmission and roads</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaBoliviaMember" xlink:label="ec_IsaBoliviaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaBoliviaMember" xlink:to="ec_IsaBoliviaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaBoliviaMember_lbl" xml:lang="en-US">This member stands for ISA Bolivia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaBoliviaMember_lbl" xml:lang="en-US">ISA Bolivia</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaBoliviaMember_lbl" xml:lang="en-US">ISA Bolivia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternexaColombiaMember" xlink:label="ec_InternexaColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternexaColombiaMember" xlink:to="ec_InternexaColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternexaColombiaMember_lbl" xml:lang="en-US">This member stands for Internexa Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternexaColombiaMember_lbl" xml:lang="en-US">Internexa Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternexaColombiaMember_lbl" xml:lang="en-US">Internexa Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConsorcioTransmantaroMember" xlink:label="ec_ConsorcioTransmantaroMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConsorcioTransmantaroMember" xlink:to="ec_ConsorcioTransmantaroMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConsorcioTransmantaroMember_lbl" xml:lang="en-US">This member stands for Consorcio Transmantaro</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConsorcioTransmantaroMember_lbl" xml:lang="en-US">Consorcio Transmantaro</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConsorcioTransmantaroMember_lbl" xml:lang="en-US">Consorcio Transmantaro</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternexaBrazilOperadoraDeTelecomunicaesMember" xlink:label="ec_InternexaBrazilOperadoraDeTelecomunicaesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternexaBrazilOperadoraDeTelecomunicaesMember" xlink:to="ec_InternexaBrazilOperadoraDeTelecomunicaesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternexaBrazilOperadoraDeTelecomunicaesMember_lbl" xml:lang="en-US">This member stands for Internexa Brazil Operadora de Telecomunicaes.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternexaBrazilOperadoraDeTelecomunicaesMember_lbl" xml:lang="en-US">Internexa Brazil Operadora De Telecomunicaes [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InternexaBrazilOperadoraDeTelecomunicaesMember_lbl" xml:lang="en-US">Internexa Brasil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternexaArgentinaMember" xlink:label="ec_InternexaArgentinaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternexaArgentinaMember" xlink:to="ec_InternexaArgentinaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternexaArgentinaMember_lbl" xml:lang="en-US">This member stands for Internexa Argentina.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternexaArgentinaMember_lbl" xml:lang="en-US">Internexa Argentina [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternexaArgentinaMember_lbl" xml:lang="en-US">Internexa Argentina</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Impairment loss recognised in profit or loss, intangible assets other than goodwill</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US">Intangibles</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Impairment loss recognised in profit or loss, property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US">Property, plant and, equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale" xlink:label="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale" xlink:to="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale_lbl" xml:lang="en-US">The amount of impairment loss recognised in profit or loss for non-current assets held for sale.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale_lbl" xml:lang="en-US">Impairment Loss Recognised In Profit Or Loss Non Current Assets Held For Sale</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentLossRecognisedInProfitOrLossNonCurrentAssetsHeldForSale_lbl" xml:lang="en-US">Non-current asset held for sale</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLoss" xlink:label="ifrs-full_ImpairmentLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLoss" xlink:to="ifrs-full_ImpairmentLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLoss_lbl" xml:lang="en-US">Impairment loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLoss_lbl" xml:lang="en-US">Impairment loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ImpairmentLoss_lbl" xml:lang="en-US">Impairment loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfImpairmentOfLongtermAssetsTable" xlink:label="ec_DisclosureOfImpairmentOfLongtermAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfImpairmentOfLongtermAssetsTable" xlink:to="ec_DisclosureOfImpairmentOfLongtermAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfImpairmentOfLongtermAssetsTable_lbl" xml:lang="en-US">Disclosure of impairment of long-term assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransportationAndLogisticsSegmentMember" xlink:label="ec_TransportationAndLogisticsSegmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransportationAndLogisticsSegmentMember" xlink:to="ec_TransportationAndLogisticsSegmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransportationAndLogisticsSegmentMember_lbl" xml:lang="en-US">Transportation and logistics segment [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TransportationAndLogisticsSegmentMember_lbl" xml:lang="en-US">Transportation and logistics segment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefineriaDeBarrancabermejaMember" xlink:label="ec_RefineriaDeBarrancabermejaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefineriaDeBarrancabermejaMember" xlink:to="ec_RefineriaDeBarrancabermejaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefineriaDeBarrancabermejaMember_lbl" xml:lang="en-US">Refineria de Barrancabermeja (projects) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefineriaDeBarrancabermejaMember_lbl" xml:lang="en-US">Refineria de Barrancabermeja</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RefineriaDeBarrancabermejaMember_lbl" xml:lang="en-US">Refinera de Barrancabermeja</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsAxis" xlink:label="ifrs-full_UnobservableInputsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnobservableInputsAxis" xlink:to="ifrs-full_UnobservableInputsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnobservableInputsAxis_lbl" xml:lang="en-US">Unobservable inputs [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain" xlink:label="ifrs-full_UnobservableInputsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnobservableInputsDomain" xlink:to="ifrs-full_UnobservableInputsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnobservableInputsDomain_lbl" xml:lang="en-US">Unobservable inputs [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember" xlink:label="ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember" xlink:to="ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember_lbl" xml:lang="en-US">Weighted average cost of capital, measurement input [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember_lbl" xml:lang="en-US">Weighted average cost of capital, measurement input</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DiscountRateMeasurementInputMember" xlink:label="ifrs-full_DiscountRateMeasurementInputMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DiscountRateMeasurementInputMember" xlink:to="ifrs-full_DiscountRateMeasurementInputMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DiscountRateMeasurementInputMember_lbl" xml:lang="en-US">Discount rate, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DiscountRateWithTaxMeasurementInputMember" xlink:label="ec_DiscountRateWithTaxMeasurementInputMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DiscountRateWithTaxMeasurementInputMember" xlink:to="ec_DiscountRateWithTaxMeasurementInputMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DiscountRateWithTaxMeasurementInputMember_lbl" xml:lang="en-US">This member stands for a discount rate with tax used as a measurement input used in valuation techniques based on a present value calculation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DiscountRateWithTaxMeasurementInputMember_lbl" xml:lang="en-US">Discount Rate With Tax, Measurement Input [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DiscountRateWithTaxMeasurementInputMember_lbl" xml:lang="en-US">Rate with tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DiscountRateWithoutTaxMeasurementInputMember" xlink:label="ec_DiscountRateWithoutTaxMeasurementInputMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DiscountRateWithoutTaxMeasurementInputMember" xlink:to="ec_DiscountRateWithoutTaxMeasurementInputMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DiscountRateWithoutTaxMeasurementInputMember_lbl" xml:lang="en-US">This member stands for a discount rate without tax used as a measurement input used in valuation techniques based on a present value calculation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DiscountRateWithoutTaxMeasurementInputMember_lbl" xml:lang="en-US">Discount Rate Without Tax, Measurement Input [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DiscountRateWithoutTaxMeasurementInputMember_lbl" xml:lang="en-US">Rate without tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CgusOfSouthNorthAndYaguaraTenayMember" xlink:label="ec_CgusOfSouthNorthAndYaguaraTenayMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CgusOfSouthNorthAndYaguaraTenayMember" xlink:to="ec_CgusOfSouthNorthAndYaguaraTenayMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CgusOfSouthNorthAndYaguaraTenayMember_lbl" xml:lang="en-US">This member stands for CGUs of North and Yaguara-Tenay.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CgusOfSouthNorthAndYaguaraTenayMember_lbl" xml:lang="en-US">CGUs of South, North and Yaguara-Tenay [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CgusOfSouthNorthAndYaguaraTenayMember_lbl" xml:lang="en-US">CGUs of South, North and Yaguara-Tenay</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxSurchargeRate0Member" xlink:label="ec_TaxSurchargeRate0Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxSurchargeRate0Member" xlink:to="ec_TaxSurchargeRate0Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxSurchargeRate0Member_lbl" xml:lang="en-US">This member stands for tax surcharge rate of 0%.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxSurchargeRate0Member_lbl" xml:lang="en-US">Tax Surcharge Rate 0% [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxSurchargeRate0Member_lbl" xml:lang="en-US">Tax Surcharge Rate 0%</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxSurchargeRate5Member" xlink:label="ec_TaxSurchargeRate5Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxSurchargeRate5Member" xlink:to="ec_TaxSurchargeRate5Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxSurchargeRate5Member_lbl" xml:lang="en-US">This member stands for tax surcharge rate of 5%.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxSurchargeRate5Member_lbl" xml:lang="en-US">Tax Surcharge Rate 5% [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxSurchargeRate5Member_lbl" xml:lang="en-US">Tax Surcharge Rate 5%</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxSurchargeRate10Member" xlink:label="ec_TaxSurchargeRate10Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxSurchargeRate10Member" xlink:to="ec_TaxSurchargeRate10Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxSurchargeRate10Member_lbl" xml:lang="en-US">This member stands for tax surcharge rate of 10%.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxSurchargeRate10Member_lbl" xml:lang="en-US">Tax Surcharge Rate 10% [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxSurchargeRate10Member_lbl" xml:lang="en-US">Tax Surcharge Rate 10%</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxSurchargeRate15Member" xlink:label="ec_TaxSurchargeRate15Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxSurchargeRate15Member" xlink:to="ec_TaxSurchargeRate15Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxSurchargeRate15Member_lbl" xml:lang="en-US">This member stands for tax surcharge rate of 15%.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxSurchargeRate15Member_lbl" xml:lang="en-US">Tax Surcharge Rate 15% [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxSurchargeRate15Member_lbl" xml:lang="en-US">Tax Surcharge Rate 15%</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis" xlink:to="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_lbl" xml:lang="en-US">Cash-generating units [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:to="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_lbl" xml:lang="en-US">Cash-generating units [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefineryCguMember" xlink:label="ec_RefineryCguMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefineryCguMember" xlink:to="ec_RefineryCguMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RefineryCguMember_lbl" xml:lang="en-US">This member stands fro Refinery Cash generating unit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefineryCguMember_lbl" xml:lang="en-US">Refinery CGU [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefineryCguMember_lbl" xml:lang="en-US">Refinery CGU</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_U111ExpansionProjectMember" xlink:label="ec_U111ExpansionProjectMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_U111ExpansionProjectMember" xlink:to="ec_U111ExpansionProjectMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_U111ExpansionProjectMember_lbl" xml:lang="en-US">This member stands for U-111 expansion project.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_U111ExpansionProjectMember_lbl" xml:lang="en-US">U-111 Expansion Project [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_U111ExpansionProjectMember_lbl" xml:lang="en-US">U-111 Expansion Project</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:to="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems_lbl" xml:lang="en-US">Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems_lbl" xml:lang="en-US">Impairment of long-term assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ImpairmentExpense" xlink:label="ec_ImpairmentExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ImpairmentExpense" xlink:to="ec_ImpairmentExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ImpairmentExpense_lbl" xml:lang="en-US">The amount of expense is presented for impairment in office-type containers because of the appraisals made to these and surpluses from the expansion project.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ImpairmentExpense_lbl" xml:lang="en-US">Impairment Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ImpairmentExpense_lbl" xml:lang="en-US">Net impairment loss</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantUnobservableInputAssets" xlink:label="ifrs-full_SignificantUnobservableInputAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantUnobservableInputAssets" xlink:to="ifrs-full_SignificantUnobservableInputAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantUnobservableInputAssets_lbl" xml:lang="en-US">Significant unobservable input, assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SignificantUnobservableInputAssets_lbl" xml:lang="en-US">Weighted average cost of capital, significant unobservable inputs, assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts" xlink:label="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts" xlink:to="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts_lbl" xml:lang="en-US">The Information about prices based on information provided by specialized market analysts and management analysts.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts_lbl" xml:lang="en-US">Information about Prices Based on Information Provided by Specialized Market Analysts and Management Analysts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InformationAboutPricesBasedOnInformationProvidedBySpecializedMarketAnalystsAndManagementAnalysts_lbl" xml:lang="en-US">Information about prices based on information provided by specialized market analysts and management analysts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefineryProcessingCapacity" xlink:label="ec_RefineryProcessingCapacity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefineryProcessingCapacity" xlink:to="ec_RefineryProcessingCapacity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RefineryProcessingCapacity_lbl" xml:lang="en-US">Maximum processing capacity of a refinery unit expressed in barrels of crude oil per day.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefineryProcessingCapacity_lbl" xml:lang="en-US">Refinery processing capacity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RefineryProcessingCapacity_lbl" xml:lang="en-US">Refinery processing capacity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty_lbl" xml:lang="en-US">Impairment loss recognised in profit or loss, investment property</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossInvestmentProperty_lbl" xml:lang="en-US">Impairment loss refinery property</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets" xlink:to="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets_lbl" xml:lang="en-US">Reversal Of Impairment Loss Recognised In Profit Or Loss Biological Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossBiologicalAssets_lbl" xml:lang="en-US">Reversal of impairment loss recognised in profit or loss, biological assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClosingForeignExchangeRate" xlink:label="ifrs-full_ClosingForeignExchangeRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClosingForeignExchangeRate" xlink:to="ifrs-full_ClosingForeignExchangeRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClosingForeignExchangeRate_lbl" xml:lang="en-US">Closing foreign exchange rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ClosingForeignExchangeRate_lbl" xml:lang="en-US">Closing balance exchange rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:label="ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:to="ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse_lbl" xml:lang="en-US">Description Of Discount Rates Used In Current Estimate Of Value In Use</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse_lbl" xml:lang="en-US">Discount rate used in current estimate of value in use</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfGoodwillTable" xlink:label="ec_DisclosureOfGoodwillTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfGoodwillTable" xlink:to="ec_DisclosureOfGoodwillTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfGoodwillTable_lbl" xml:lang="en-US">Disclosure of Goodwill [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexinElctricaS.a.EspMember" xlink:label="ec_InterconexinElctricaS.a.EspMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexinElctricaS.a.EspMember" xlink:to="ec_InterconexinElctricaS.a.EspMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexinElctricaS.a.EspMember_lbl" xml:lang="en-US">This member stands for Interconexin Elctrica S.A. ESP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexinElctricaS.a.EspMember_lbl" xml:lang="en-US">Interconexion Electrica S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexinElctricaS.a.EspMember_lbl" xml:lang="en-US">Interconexion Electrica S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoCentralSaMember" xlink:label="ec_OleoductoCentralSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoCentralSaMember" xlink:to="ec_OleoductoCentralSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OleoductoCentralSaMember_lbl" xml:lang="en-US">This member stands for Oleoducto Central S.A..</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoCentralSaMember_lbl" xml:lang="en-US">Oleoducto Central S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OleoductoCentralSaMember_lbl" xml:lang="en-US">Oleoducto Central S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OleoductoCentralSaMember_lbl" xml:lang="en-US">Oleoducto Central S.A. - Ocensa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HocolPetroleumLimitedMember" xlink:label="ec_HocolPetroleumLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HocolPetroleumLimitedMember" xlink:to="ec_HocolPetroleumLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HocolPetroleumLimitedMember_lbl" xml:lang="en-US">This member stands for Hocol Petroleum.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HocolPetroleumLimitedMember_lbl" xml:lang="en-US">Hocol Petroleum Ltd</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HocolPetroleumLimitedMember_lbl" xml:lang="en-US">Hocol Petroleum Ltd</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AndeanChemicalLimitedMember" xlink:label="ec_AndeanChemicalLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AndeanChemicalLimitedMember" xlink:to="ec_AndeanChemicalLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AndeanChemicalLimitedMember_lbl" xml:lang="en-US">Andean Chemical Limited</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AndeanChemicalLimitedMember_lbl" xml:lang="en-US">Andean Chemical Limited</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsenttiaS.aMember" xlink:label="ec_EsenttiaS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsenttiaS.aMember" xlink:to="ec_EsenttiaS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsenttiaS.aMember_lbl" xml:lang="en-US">This member stands for Esenttia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsenttiaS.aMember_lbl" xml:lang="en-US">Esenttia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EsenttiaS.aMember_lbl" xml:lang="en-US">Esenttia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember" xlink:label="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember" xlink:to="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember_lbl" xml:lang="en-US">This member stands for Parque Solar Portn del Sol S.A.S. E.S.P. ("Portn del Sol").</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember_lbl" xml:lang="en-US">Parque Solar Portn del Sol S.A.S. E.S.P. ("Portn del Sol") [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ParqueSolarPortnDelSolS.a.s.E.s.p.PortnDelSolMember_lbl" xml:lang="en-US">Parque Solar Portn del Sol S.A.S y Energuana S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfGoodwillLineItems" xlink:label="ec_DisclosureOfGoodwillLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfGoodwillLineItems" xlink:to="ec_DisclosureOfGoodwillLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfGoodwillLineItems_lbl" xml:lang="en-US">Disclosure of Goodwill [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GoodwillFromAcquisitionsAbstract" xlink:label="ec_GoodwillFromAcquisitionsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GoodwillFromAcquisitionsAbstract" xlink:to="ec_GoodwillFromAcquisitionsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GoodwillFromAcquisitionsAbstract_lbl" xml:lang="en-US">Goodwill From Acquisitions [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GoodwillFromAcquisitionsAbstract_lbl" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_lbl" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="ifrs-full_BorrowingsByNameAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameAxis_lbl" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="ifrs-full_BorrowingsByNameDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="ifrs-full_BorrowingsByNameDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameDomain_lbl" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondMember" xlink:label="ec_BondMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondMember" xlink:to="ec_BondMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondMember_lbl" xml:lang="en-US">This member stands for bonds.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondMember_lbl" xml:lang="en-US">Bonds</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondMember_lbl" xml:lang="en-US">Bonds</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BondMember_lbl" xml:lang="en-US">Bonds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CommercialAndSyndicateLoansMember" xlink:label="ec_CommercialAndSyndicateLoansMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CommercialAndSyndicateLoansMember" xlink:to="ec_CommercialAndSyndicateLoansMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CommercialAndSyndicateLoansMember_lbl" xml:lang="en-US">This member stands for commercial and syndicate loans.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CommercialAndSyndicateLoansMember_lbl" xml:lang="en-US">Commercial And Syndicate Loans [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CommercialAndSyndicateLoansMember_lbl" xml:lang="en-US">Commercial and syndicate loans and related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansFromRelatedPartiesMember" xlink:label="ec_LoansFromRelatedPartiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansFromRelatedPartiesMember" xlink:to="ec_LoansFromRelatedPartiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansFromRelatedPartiesMember_lbl" xml:lang="en-US">This member stands for loans from related parties.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansFromRelatedPartiesMember_lbl" xml:lang="en-US">Loans from related parties [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoansFromRelatedPartiesMember_lbl" xml:lang="en-US">Loans from related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about borrowings [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xml:lang="en-US">Conditions of the most significant debt</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="ifrs-full_BorrowingsInterestRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsInterestRate" xlink:to="ifrs-full_BorrowingsInterestRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US">Borrowings, interest rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US">Borrowings, interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings" xlink:label="ifrs-full_Borrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Borrowings" xlink:to="ifrs-full_Borrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US">Borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US">Loans and borrowings (Note 20)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US">Borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US">Borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermBorrowings" xlink:label="ifrs-full_ShorttermBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShorttermBorrowings" xlink:to="ifrs-full_ShorttermBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShorttermBorrowings_lbl" xml:lang="en-US">Short-term Debt</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ShorttermBorrowings_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfLoansAndBorrowingsTable" xlink:label="ec_DisclosureOfLoansAndBorrowingsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfLoansAndBorrowingsTable" xlink:to="ec_DisclosureOfLoansAndBorrowingsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfLoansAndBorrowingsTable_lbl" xml:lang="en-US">Disclosure of Loans and borrowings [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LocalBorrowingsMember" xlink:label="ec_LocalBorrowingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LocalBorrowingsMember" xlink:to="ec_LocalBorrowingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LocalBorrowingsMember_lbl" xml:lang="en-US">Local Borrowings [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LocalBorrowingsMember_lbl" xml:lang="en-US">Local Borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BorrowingsByEcopetrolS.aMember" xlink:label="ec_BorrowingsByEcopetrolS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BorrowingsByEcopetrolS.aMember" xlink:to="ec_BorrowingsByEcopetrolS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BorrowingsByEcopetrolS.aMember_lbl" xml:lang="en-US">This member stands for borrowings by Ecopetrol S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BorrowingsByEcopetrolS.aMember_lbl" xml:lang="en-US">Borrowings by Ecopetrol S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BorrowingsByEcopetrolS.aMember_lbl" xml:lang="en-US">Ecopetrol S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember" xlink:label="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember" xlink:to="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember_lbl" xml:lang="en-US">This member stands for borrowings by Interconexion Electrica S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember_lbl" xml:lang="en-US">Borrowings by Interconexion Electrica S.A. E.S.P [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BorrowingsByInterconexionElectricaS.a.E.s.pMember_lbl" xml:lang="en-US">Interconexion Electrica S.A. E.S.P</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BorrowingsByOcensaS.aMember" xlink:label="ec_BorrowingsByOcensaS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BorrowingsByOcensaS.aMember" xlink:to="ec_BorrowingsByOcensaS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BorrowingsByOcensaS.aMember_lbl" xml:lang="en-US">This member stands for borrowings by Ocensa S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BorrowingsByOcensaS.aMember_lbl" xml:lang="en-US">Borrowings by Ocensa S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BorrowingsByOcensaS.aMember_lbl" xml:lang="en-US">Ocensa S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DollarDenominatedLoanMaturingIn2030Member" xlink:label="ec_DollarDenominatedLoanMaturingIn2030Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DollarDenominatedLoanMaturingIn2030Member" xlink:to="ec_DollarDenominatedLoanMaturingIn2030Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DollarDenominatedLoanMaturingIn2030Member_lbl" xml:lang="en-US">This member stands for dollar-denominated loan maturing in 2030</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DollarDenominatedLoanMaturingIn2030Member_lbl" xml:lang="en-US">Dollar Denominated Loan Maturing In 2030 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DollarDenominatedLoanMaturingIn2030Member_lbl" xml:lang="en-US">Dollar-denominated loan maturing in 2030</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_USD" xlink:label="currency_USD" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="currency_USD" xlink:to="currency_USD_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="currency_USD_lbl" xml:lang="en-US">Us Dollar [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="currency_USD_lbl" xml:lang="en-US">USD$ Million</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="currency_USD_lbl" xml:lang="en-US">US Dollar</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis" xlink:label="srt_StatementGeographicalAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_StatementGeographicalAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementGeographicalAxis_lbl" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain" xlink:label="srt_SegmentGeographicalDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_SegmentGeographicalDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_SegmentGeographicalDomain_lbl" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaAndItsCompaniesMember" xlink:label="ec_IsaAndItsCompaniesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaAndItsCompaniesMember" xlink:to="ec_IsaAndItsCompaniesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaAndItsCompaniesMember_lbl" xml:lang="en-US">This member stands for ISA and its Companies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaAndItsCompaniesMember_lbl" xml:lang="en-US">ISA and Its Companies [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaAndItsCompaniesMember_lbl" xml:lang="en-US">ISA and its Companies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:label="ifrs-full_ProceedsFromNoncurrentBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:to="ifrs-full_ProceedsFromNoncurrentBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromNoncurrentBorrowings_lbl" xml:lang="en-US">Proceeds from non-current borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromNoncurrentBorrowings_lbl" xml:lang="en-US">Proceeds obtained from loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentLiabilities" xlink:label="ifrs-full_HedgingInstrumentLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_HedgingInstrumentLiabilities" xlink:to="ifrs-full_HedgingInstrumentLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_HedgingInstrumentLiabilities_lbl" xml:lang="en-US">Hedging instrument, liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_HedgingInstrumentLiabilities_lbl" xml:lang="en-US">Hedging instrument liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EstimatedValueOfCurrentGuarantees" xlink:label="ec_EstimatedValueOfCurrentGuarantees" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EstimatedValueOfCurrentGuarantees" xlink:to="ec_EstimatedValueOfCurrentGuarantees_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EstimatedValueOfCurrentGuarantees_lbl" xml:lang="en-US">Estimated amount of current guarantees.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EstimatedValueOfCurrentGuarantees_lbl" xml:lang="en-US">Estimated Value of Current Guarantees</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EstimatedValueOfCurrentGuarantees_lbl" xml:lang="en-US">Estimated value of the current guarantees</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractualCapitalCommitments" xlink:label="ifrs-full_ContractualCapitalCommitments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContractualCapitalCommitments" xlink:to="ifrs-full_ContractualCapitalCommitments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContractualCapitalCommitments_lbl" xml:lang="en-US">Contractual capital commitments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember" xlink:label="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember" xlink:to="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember_lbl" xml:lang="en-US">This member stands for lease liabilities and loans from related parties.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember_lbl" xml:lang="en-US">Lease Liabilities and Loans from Related Parties [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LeaseLiabilitiesAndLoansFromRelatedPartiesMember_lbl" xml:lang="en-US">Lease liabilities and related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansPayableFairValue" xlink:label="ec_LoansPayableFairValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansPayableFairValue" xlink:to="ec_LoansPayableFairValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansPayableFairValue_lbl" xml:lang="en-US">Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansPayableFairValue_lbl" xml:lang="en-US">Loans Payable Fair Value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoansPayableFairValue_lbl" xml:lang="en-US">Fair value of loans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember" xlink:label="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember" xlink:to="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember_lbl" xml:lang="en-US">This member stands for commercial and syndicate loans and lease liabilities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember_lbl" xml:lang="en-US">Commercial, Syndicate Loans And Lease Liabilities [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CommercialSyndicateLoansAndLeaseLiabilitiesMember_lbl" xml:lang="en-US">Commercial and syndicated loans and lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">From 1 to 5 years</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">From 1 to 5 years</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" xml:lang="en-US">From 5 to 10 years</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" xml:lang="en-US">From 5 to 10 years</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanTenYearsMember" xlink:label="ifrs-full_LaterThanTenYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanTenYearsMember" xlink:to="ifrs-full_LaterThanTenYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanTenYearsMember_lbl" xml:lang="en-US">More than 10 years</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanTenYearsMember_lbl" xml:lang="en-US">More than 10 years</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CurrencyAxis" xlink:label="srt_CurrencyAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CurrencyAxis" xlink:to="srt_CurrencyAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CurrencyAxis_lbl" xml:lang="en-US">Currency [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain" xlink:label="currency_AllCurrenciesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_AllCurrenciesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="currency_AllCurrenciesDomain_lbl" xml:lang="en-US">All Currencies [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesAxis" xlink:label="ifrs-full_TypesOfInterestRatesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInterestRatesAxis" xlink:to="ifrs-full_TypesOfInterestRatesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInterestRatesAxis_lbl" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesDomain" xlink:label="ifrs-full_TypesOfInterestRatesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInterestRatesDomain" xlink:to="ifrs-full_TypesOfInterestRatesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInterestRatesDomain_lbl" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FixedInterestRateMember" xlink:label="ifrs-full_FixedInterestRateMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FixedInterestRateMember" xlink:to="ifrs-full_FixedInterestRateMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FixedInterestRateMember_lbl" xml:lang="en-US">Fixed interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FloatingInterestRateMember" xlink:label="ifrs-full_FloatingInterestRateMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FloatingInterestRateMember" xlink:to="ifrs-full_FloatingInterestRateMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FloatingInterestRateMember_lbl" xml:lang="en-US">Floating interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentAbstract" xlink:label="ec_CurrentAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentAbstract" xlink:to="ec_CurrentAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentAbstract_lbl" xml:lang="en-US">No definition.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentAbstract_lbl" xml:lang="en-US">Current (Abstract)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentAbstract_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xml:lang="en-US">Trade payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xml:lang="en-US">Suppliers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdvancesForAssociatedOperations" xlink:label="ec_AdvancesForAssociatedOperations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdvancesForAssociatedOperations" xlink:to="ec_AdvancesForAssociatedOperations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdvancesForAssociatedOperations_lbl" xml:lang="en-US">Amounts received in advance from counterparties in connection with joint or associated operations, representing obligations to deliver goods or services or settle through future performance.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdvancesForAssociatedOperations_lbl" xml:lang="en-US">Advances For Associated Operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdvancesForAssociatedOperations_lbl" xml:lang="en-US">Advances for associated operations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:to="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US">Payables on social security and taxes other than income tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US">Withholding tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentPayablesForInsuranceAndReinsurance" xlink:label="ec_CurrentPayablesForInsuranceAndReinsurance" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentPayablesForInsuranceAndReinsurance" xlink:to="ec_CurrentPayablesForInsuranceAndReinsurance_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentPayablesForInsuranceAndReinsurance_lbl" xml:lang="en-US">The amount of current payables for insurance and reinsurance.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentPayablesForInsuranceAndReinsurance_lbl" xml:lang="en-US">Current Payables For Insurance And Reinsurance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentPayablesForInsuranceAndReinsurance_lbl" xml:lang="en-US">Insurance and reinsurance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetentionPayables" xlink:label="ifrs-full_RetentionPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetentionPayables" xlink:to="ifrs-full_RetentionPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetentionPayables_lbl" xml:lang="en-US">Retention payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RetentionPayables_lbl" xml:lang="en-US">Deposits received from third parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendPayables" xlink:label="ifrs-full_DividendPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendPayables" xlink:to="ifrs-full_DividendPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendPayables_lbl" xml:lang="en-US">Dividend payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DividendPayables_lbl" xml:lang="en-US">Dividends payable</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PayableUnderTransportContract" xlink:label="ec_PayableUnderTransportContract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PayableUnderTransportContract" xlink:to="ec_PayableUnderTransportContract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PayableUnderTransportContract_lbl" xml:lang="en-US">The amount of payment due under transport contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PayableUnderTransportContract_lbl" xml:lang="en-US">payable under transport contract</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PayableUnderTransportContract_lbl" xml:lang="en-US">Agreements in transport contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:to="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Amounts payable, related party transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Related parties (Note 31)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPayables" xlink:label="ifrs-full_OtherPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherPayables" xlink:to="ifrs-full_OtherPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherPayables_lbl" xml:lang="en-US">Other payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherPayables_lbl" xml:lang="en-US">Various creditors</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfTradeAndOtherPayablesTable" xlink:label="ec_DisclosureOfTradeAndOtherPayablesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfTradeAndOtherPayablesTable" xlink:to="ec_DisclosureOfTradeAndOtherPayablesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfTradeAndOtherPayablesTable_lbl" xml:lang="en-US">Schedule of Trade and other payables table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfTradeAndOtherPayablesTable_lbl" xml:lang="en-US">Disclosure Of Trade and other payables (Table)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember" xlink:label="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember" xlink:to="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember_lbl" xml:lang="en-US">This member stands for Block CPO-09 from Repsol Colombia Oil &amp; Gas Limited.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember_lbl" xml:lang="en-US">Block CPO-09 from Repsol Colombia Oil &amp; Gas Limited [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BlockCpo09FromRepsolColombiaOilGasLimitedMember_lbl" xml:lang="en-US">Block CPO09</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfTradeAndOtherPayablesLineItems" xlink:label="ec_DisclosureOfTradeAndOtherPayablesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfTradeAndOtherPayablesLineItems" xlink:to="ec_DisclosureOfTradeAndOtherPayablesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfTradeAndOtherPayablesLineItems_lbl" xml:lang="en-US">Line item of Trade and other payables.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfTradeAndOtherPayablesLineItems_lbl" xml:lang="en-US">Disclosure Of Trade And Other Payables (Line Items)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfTradeAndOtherPayablesLineItems_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansTable" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDefinedBenefitPlansTable" xlink:to="ifrs-full_DisclosureOfDefinedBenefitPlansTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansTable_lbl" xml:lang="en-US">Disclosure of defined benefit plans [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis" xlink:label="ifrs-full_DefinedBenefitPlansAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DefinedBenefitPlansAxis" xlink:to="ifrs-full_DefinedBenefitPlansAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DefinedBenefitPlansAxis_lbl" xml:lang="en-US">Defined benefit plans [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="ifrs-full_DefinedBenefitPlansDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DefinedBenefitPlansDomain" xlink:to="ifrs-full_DefinedBenefitPlansDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DefinedBenefitPlansDomain_lbl" xml:lang="en-US">Defined benefit plans [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HealthcareMember" xlink:label="ec_HealthcareMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HealthcareMember" xlink:to="ec_HealthcareMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HealthcareMember_lbl" xml:lang="en-US">Health</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HealthcareMember_lbl" xml:lang="en-US">Health</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_HealthcareMember_lbl" xml:lang="en-US">Health</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PensionMember" xlink:label="ec_PensionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PensionMember" xlink:to="ec_PensionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PensionMember_lbl" xml:lang="en-US">Pension</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PensionMember_lbl" xml:lang="en-US">Pension</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EducationMember" xlink:label="ec_EducationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EducationMember" xlink:to="ec_EducationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EducationMember_lbl" xml:lang="en-US">Education</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EducationMember_lbl" xml:lang="en-US">Education</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_EducationMember_lbl" xml:lang="en-US">Education</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherBenefitsMember" xlink:label="ec_OtherBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherBenefitsMember" xlink:to="ec_OtherBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherBenefitsMember_lbl" xml:lang="en-US">Other plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherBenefitsMember_lbl" xml:lang="en-US">Other plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherBenefitsMember_lbl" xml:lang="en-US">Other benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TerminationBenefitsMember" xlink:label="ec_TerminationBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TerminationBenefitsMember" xlink:to="ec_TerminationBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TerminationBenefitsMember_lbl" xml:lang="en-US">Termination benefits - Voluntary retirement plan</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TerminationBenefitsMember_lbl" xml:lang="en-US">Termination benefits - Voluntary retirement plan</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PostEmploymentAndTerminationBenefitsMember" xlink:label="ec_PostEmploymentAndTerminationBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PostEmploymentAndTerminationBenefitsMember" xlink:to="ec_PostEmploymentAndTerminationBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PostEmploymentAndTerminationBenefitsMember_lbl" xml:lang="en-US">Post employment and termination benefits</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PostEmploymentAndTerminationBenefitsMember_lbl" xml:lang="en-US">Post employment and termination benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SocialBenefitsAndSalariesMember" xlink:label="ec_SocialBenefitsAndSalariesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SocialBenefitsAndSalariesMember" xlink:to="ec_SocialBenefitsAndSalariesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SocialBenefitsAndSalariesMember_lbl" xml:lang="en-US">Social benefits and salaries</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SocialBenefitsAndSalariesMember_lbl" xml:lang="en-US">Social benefits and salaries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherEmploymentBenefitsMember" xlink:label="ec_OtherEmploymentBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherEmploymentBenefitsMember" xlink:to="ec_OtherEmploymentBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherEmploymentBenefitsMember_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherEmploymentBenefitsMember_lbl" xml:lang="en-US">Other Employment Benefits [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherEmploymentBenefitsMember_lbl" xml:lang="en-US">Other employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" xlink:to="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_lbl" xml:lang="en-US">Disclosure of defined benefit plans [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_lbl" xml:lang="en-US">Disclosure of defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PostEmploymentsBenefitsAbstract" xlink:label="ec_PostEmploymentsBenefitsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PostEmploymentsBenefitsAbstract" xlink:to="ec_PostEmploymentsBenefitsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PostEmploymentsBenefitsAbstract_lbl" xml:lang="en-US">No definition.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PostEmploymentsBenefitsAbstract_lbl" xml:lang="en-US">Post Employments Benefits [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PostEmploymentsBenefitsAbstract_lbl" xml:lang="en-US">Post-employment benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionsForEmployeeBenefits" xlink:label="ifrs-full_ProvisionsForEmployeeBenefits" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionsForEmployeeBenefits" xlink:to="ifrs-full_ProvisionsForEmployeeBenefits_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Provisions for employee benefits</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProvisionsForEmployeeBenefits_lbl" xml:lang="en-US">Post-employment benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PensionAndPensionBondsMember" xlink:label="ec_PensionAndPensionBondsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PensionAndPensionBondsMember" xlink:to="ec_PensionAndPensionBondsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PensionAndPensionBondsMember_lbl" xml:lang="en-US">Pension and bonds</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PensionAndPensionBondsMember_lbl" xml:lang="en-US">Pension and bonds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherEmployeeBenefitsMember" xlink:label="ec_OtherEmployeeBenefitsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherEmployeeBenefitsMember" xlink:to="ec_OtherEmployeeBenefitsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherEmployeeBenefitsMember_lbl" xml:lang="en-US">Represents other employee benefits.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherEmployeeBenefitsMember_lbl" xml:lang="en-US">Other Member [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherEmployeeBenefitsMember_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LiabilitiesOfBenefitPlanAbstract" xlink:label="ec_LiabilitiesOfBenefitPlanAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LiabilitiesOfBenefitPlanAbstract" xlink:to="ec_LiabilitiesOfBenefitPlanAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LiabilitiesOfBenefitPlanAbstract_lbl" xml:lang="en-US">Liabilities of benefit plan [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_LiabilitiesOfBenefitPlanAbstract_lbl" xml:lang="en-US">Liabilities for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:label="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:to="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_lbl" xml:lang="en-US">Net defined benefit liability</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Current service cost, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Current service cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Past service cost, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Past service cost</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Interest expense (income), net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Interest expense</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Actuarial gains (losses) arising from changes in financial assumptions, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Gains from financial assumptions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Payments from plan, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Benefits paid</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Increase (decrease) in net defined benefit liability (asset) resulting from changes in foreign exchange rates, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AssetsOfBenefitPlanAbstract" xlink:label="ec_AssetsOfBenefitPlanAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AssetsOfBenefitPlanAbstract" xlink:to="ec_AssetsOfBenefitPlanAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AssetsOfBenefitPlanAbstract_lbl" xml:lang="en-US">Assets of benefit plan [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AssetsOfBenefitPlanAbstract_lbl" xml:lang="en-US">Plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:label="ifrs-full_RecognisedAssetsDefinedBenefitPlan" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:to="ifrs-full_RecognisedAssetsDefinedBenefitPlan_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RecognisedAssetsDefinedBenefitPlan_lbl" xml:lang="en-US">Net defined benefit asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_RecognisedAssetsDefinedBenefitPlan_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_RecognisedAssetsDefinedBenefitPlan_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Return on plan assets, net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US">Return on assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContributionsToFundsPlanAssets" xlink:label="ec_ContributionsToFundsPlanAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContributionsToFundsPlanAssets" xlink:to="ec_ContributionsToFundsPlanAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ContributionsToFundsPlanAssets_lbl" xml:lang="en-US">The amount of contributions to funds ,plan assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContributionsToFundsPlanAssets_lbl" xml:lang="en-US">Contributions to funds, plan assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ContributionsToFundsPlanAssets_lbl" xml:lang="en-US">Contributions to funds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BenefitsPaid" xlink:label="ec_BenefitsPaid" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BenefitsPaid" xlink:to="ec_BenefitsPaid_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BenefitsPaid_lbl" xml:lang="en-US">The amount of benefits paid from plan assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BenefitsPaid_lbl" xml:lang="en-US">Benefits paid</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BenefitsPaid_lbl" xml:lang="en-US">Benefits paid</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ActuarialGainsLossesToPlanAssets" xlink:label="ec_ActuarialGainsLossesToPlanAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ActuarialGainsLossesToPlanAssets" xlink:to="ec_ActuarialGainsLossesToPlanAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ActuarialGainsLossesToPlanAssets_lbl" xml:lang="en-US">The amount of actuarial gains (losses) recorded for plan assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ActuarialGainsLossesToPlanAssets_lbl" xml:lang="en-US">Actuarial gains losses to plan assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ActuarialGainsLossesToPlanAssets_lbl" xml:lang="en-US">Actuarial gains</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:to="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US">Net defined benefit liability (asset)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US">Net post-employment benefits liability</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RecognizedThroughProfitOfLossAbstract" xlink:label="ec_RecognizedThroughProfitOfLossAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RecognizedThroughProfitOfLossAbstract" xlink:to="ec_RecognizedThroughProfitOfLossAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RecognizedThroughProfitOfLossAbstract_lbl" xml:lang="en-US">Recognized through profit of loss [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RecognizedThroughProfitOfLossAbstract_lbl" xml:lang="en-US">Profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss" xlink:label="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss" xlink:to="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Interest costs, net of return on plan assets of the benefit plans recognized in profit or loss.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Interest Cost Net of Return on Plan Assets Recognized In Profit Or Loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterestCostNetOfReturnOnPlanAssetsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Interest expense, net of return on plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentServiceCostRecognizedInProfitOrLoss" xlink:label="ec_CurrentServiceCostRecognizedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentServiceCostRecognizedInProfitOrLoss" xlink:to="ec_CurrentServiceCostRecognizedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Current service costs of the benefit plans recognized in profit or loss.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Current service cost recognized in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CurrentServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Current service cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PastServiceCostRecognizedInProfitOrLoss" xlink:label="ec_PastServiceCostRecognizedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PastServiceCostRecognizedInProfitOrLoss" xlink:to="ec_PastServiceCostRecognizedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PastServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Past service costs of the benefit plans recognized in profit or loss.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PastServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Past service cost recognized in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PastServiceCostRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Past service cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BenefitsPlanCostsRecognizedInProfitOrLoss" xlink:label="ec_BenefitsPlanCostsRecognizedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BenefitsPlanCostsRecognizedInProfitOrLoss" xlink:to="ec_BenefitsPlanCostsRecognizedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BenefitsPlanCostsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Total costs of the benefit plans those recognized in profit or loss during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BenefitsPlanCostsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Benefits plan costs recognized in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_BenefitsPlanCostsRecognizedInProfitOrLoss_lbl" xml:lang="en-US">Benefits plan costs recognized in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RecognizedThroughOtherComprehensiveIncomeAbstract" xlink:label="ec_RecognizedThroughOtherComprehensiveIncomeAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RecognizedThroughOtherComprehensiveIncomeAbstract" xlink:to="ec_RecognizedThroughOtherComprehensiveIncomeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RecognizedThroughOtherComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Recognized through other comprehensive income [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RecognizedThroughOtherComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate" xlink:label="ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate" xlink:to="ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate_lbl" xml:lang="en-US">Increase (decrease) in accumulated deferred tax recognised in other comprehensive income due to change in tax rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncreaseDecreaseInAccumulatedDeferredTaxRecognisedInOtherComprehensiveIncomeDueToChangeInTaxRate_lbl" xml:lang="en-US">Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans_lbl" xml:lang="en-US">Other Comprehensive Income Net Of Tax Gains Losses On Remeasurement Of Defined Benefit Plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementOfDefinedBenefitPlans_lbl" xml:lang="en-US">Other comprehensive income, net of taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityDomain" xlink:to="dei_EntityDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityDomain_lbl" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PrivateEntitiesMember" xlink:label="ec_PrivateEntitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PrivateEntitiesMember" xlink:to="ec_PrivateEntitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PrivateEntitiesMember_lbl" xml:lang="en-US">Private Entities Member</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PrivateEntitiesMember_lbl" xml:lang="en-US">Bonds of private entities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalGovernmentMember" xlink:label="ec_NationalGovernmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalGovernmentMember" xlink:to="ec_NationalGovernmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalGovernmentMember_lbl" xml:lang="en-US">National Government Member</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NationalGovernmentMember_lbl" xml:lang="en-US">Bonds issued by the national government</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PublicEntitiesMember" xlink:label="ec_PublicEntitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PublicEntitiesMember" xlink:to="ec_PublicEntitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PublicEntitiesMember_lbl" xml:lang="en-US">Public Entities Member</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PublicEntitiesMember_lbl" xml:lang="en-US">Other public bonds</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TrustAxis" xlink:label="ec_TrustAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TrustAxis" xlink:to="ec_TrustAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TrustAxis_lbl" xml:lang="en-US">Trust [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TrustDomain" xlink:label="ec_TrustDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TrustDomain" xlink:to="ec_TrustDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TrustDomain_lbl" xml:lang="en-US">Trust [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PensionTrustMember" xlink:label="ec_PensionTrustMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PensionTrustMember" xlink:to="ec_PensionTrustMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PensionTrustMember_lbl" xml:lang="en-US">Pension Trust [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PensionTrustMember_lbl" xml:lang="en-US">Pension trust</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:label="ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:to="ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_lbl" xml:lang="en-US">Debt Instruments Amount Contributed To Fair Value Of Plan Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_lbl" xml:lang="en-US">Debt instruments, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsOfBenefitPlan" xlink:label="ifrs-full_AssetsOfBenefitPlan" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsOfBenefitPlan" xlink:to="ifrs-full_AssetsOfBenefitPlan_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsOfBenefitPlan_lbl" xml:lang="en-US">Assets of benefit plan</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssetsOfBenefitPlan_lbl" xml:lang="en-US">Assets of benefit plan</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfPlanAssets" xlink:label="ec_PercentageOfPlanAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfPlanAssets" xlink:to="ec_PercentageOfPlanAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfPlanAssets_lbl" xml:lang="en-US">The percentage of plan assets in total assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfPlanAssets_lbl" xml:lang="en-US">Percentage of plan assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfPlanAssets_lbl" xml:lang="en-US">Percentage of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="ifrs-full_PlanAssetsAtFairValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PlanAssetsAtFairValue" xlink:to="ifrs-full_PlanAssetsAtFairValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US">Plan Assets At Fair Value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US">Plan assets, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationMember" xlink:label="ec_NationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationMember" xlink:to="ec_NationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationMember_lbl" xml:lang="en-US">Nation [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationMember_lbl" xml:lang="en-US">Nation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherQualificationsMember" xlink:label="ec_OtherQualificationsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherQualificationsMember" xlink:to="ec_OtherQualificationsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherQualificationsMember_lbl" xml:lang="en-US">Other credit ratings [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherQualificationsMember_lbl" xml:lang="en-US">Other ratings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnratedMember" xlink:label="ec_UnratedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnratedMember" xlink:to="ec_UnratedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnratedMember_lbl" xml:lang="en-US">Not available ratings [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UnratedMember_lbl" xml:lang="en-US">Rating not available</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsTable" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsTable" xlink:to="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsTable_lbl" xml:lang="en-US">Disclosure of detailed information about provision for employee benefits [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherBenefitMember" xlink:label="ec_OtherBenefitMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherBenefitMember" xlink:to="ec_OtherBenefitMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherBenefitMember_lbl" xml:lang="en-US">Other benefits [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherBenefitMember_lbl" xml:lang="en-US">Others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsLineItems" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsLineItems_lbl" xml:lang="en-US">Disclosure Of Detailed Information About Provision For Employee Benefits [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutProvisionForEmployeeBenefitsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about provision for employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:to="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xml:lang="en-US">Actuarial assumption of discount rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xml:lang="en-US">Discount rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_lbl" xml:lang="en-US">Actuarial assumption of expected rates of salary increases</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_lbl" xml:lang="en-US">Salary growth rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xml:lang="en-US">Actuarial assumption of expected rates of inflation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xml:lang="en-US">Expected inflation rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases_lbl" xml:lang="en-US">Actuarial assumption of expected rates of pension increases</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases_lbl" xml:lang="en-US">Pension growth rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ActuarialAssumptionOfShortTermRates" xlink:label="ec_ActuarialAssumptionOfShortTermRates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ActuarialAssumptionOfShortTermRates" xlink:to="ec_ActuarialAssumptionOfShortTermRates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ActuarialAssumptionOfShortTermRates_lbl" xml:lang="en-US">The short term rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ActuarialAssumptionOfShortTermRates_lbl" xml:lang="en-US">Actuarial assumption of short term rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ActuarialAssumptionOfShortTermRates_lbl" xml:lang="en-US">Short-term rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ActuarialAssumptionOfLongTermRates" xlink:label="ec_ActuarialAssumptionOfLongTermRates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ActuarialAssumptionOfLongTermRates" xlink:to="ec_ActuarialAssumptionOfLongTermRates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ActuarialAssumptionOfLongTermRates_lbl" xml:lang="en-US">The long term rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ActuarialAssumptionOfLongTermRates_lbl" xml:lang="en-US">Actuarial assumption of long term rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ActuarialAssumptionOfLongTermRates_lbl" xml:lang="en-US">Long-term rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US">2023.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US">2028</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US">2028</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:to="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" xml:lang="en-US">2029</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" xml:lang="en-US">2029</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaterThanFourYearsMember" xlink:label="ec_LaterThanFourYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaterThanFourYearsMember" xlink:to="ec_LaterThanFourYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaterThanFourYearsMember_lbl" xml:lang="en-US">This member stands for a time band of later than four years.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaterThanFourYearsMember_lbl" xml:lang="en-US">Later Than Four Years [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaterThanFourYearsMember_lbl" xml:lang="en-US">2030 and beyond</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:to="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" xml:lang="en-US">Estimate of contributions expected to be paid to plan for next annual reporting period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" xml:lang="en-US">payment of post-employment obligations</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsAxis" xlink:label="ifrs-full_ActuarialAssumptionsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionsAxis" xlink:to="ifrs-full_ActuarialAssumptionsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionsAxis_lbl" xml:lang="en-US">Actuarial assumptions [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsDomain" xlink:label="ifrs-full_ActuarialAssumptionsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionsDomain" xlink:to="ifrs-full_ActuarialAssumptionsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionsDomain_lbl" xml:lang="en-US">Actuarial assumptions [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRatesMember" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRatesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfDiscountRatesMember" xlink:to="ifrs-full_ActuarialAssumptionOfDiscountRatesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRatesMember_lbl" xml:lang="en-US">Discount rate [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRatesMember_lbl" xml:lang="en-US">Discount rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember_lbl" xml:lang="en-US">Inflation rate [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember_lbl" xml:lang="en-US">Inflation rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_lbl" xml:lang="en-US">Salary growth rate [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_lbl" xml:lang="en-US">Salary growth rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:to="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" xml:lang="en-US">Cost trend [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" xml:lang="en-US">Cost trend</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HealthMember" xlink:label="ec_HealthMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HealthMember" xlink:to="ec_HealthMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HealthMember_lbl" xml:lang="en-US">Health [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HealthMember_lbl" xml:lang="en-US">Health</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:to="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_lbl" xml:lang="en-US">Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_lbl" xml:lang="en-US">-50 basis points</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:to="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_lbl" xml:lang="en-US">Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_lbl" xml:lang="en-US">+50 basis points</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccruedLiabilitiesAndProvisionsTable" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTable" xlink:to="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsTable_lbl" xml:lang="en-US">Disclosure of accrued liabilities and provisions [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AssetRetirementObligationMember" xlink:label="ec_AssetRetirementObligationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AssetRetirementObligationMember" xlink:to="ec_AssetRetirementObligationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AssetRetirementObligationMember_lbl" xml:lang="en-US">Asset retirement obligation [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AssetRetirementObligationMember_lbl" xml:lang="en-US">Asset retirement obligation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LitigationProvisionMember" xlink:label="ec_LitigationProvisionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LitigationProvisionMember" xlink:to="ec_LitigationProvisionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LitigationProvisionMember_lbl" xml:lang="en-US">Litigations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnvironmentalContingenciesProvisionMember" xlink:label="ec_EnvironmentalContingenciesProvisionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnvironmentalContingenciesProvisionMember" xlink:to="ec_EnvironmentalContingenciesProvisionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnvironmentalContingenciesProvisionMember_lbl" xml:lang="en-US">Environmental contingencies and others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems" xlink:to="ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems_lbl" xml:lang="en-US">Disclosure of accrued liabilities and provisions [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfAccruedLiabilitiesAndProvisionsLineItems_lbl" xml:lang="en-US">Accrued liabilities and provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherProvisions" xlink:label="ifrs-full_OtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherProvisions" xlink:to="ifrs-full_OtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherProvisions_lbl" xml:lang="en-US">Other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_OtherProvisions_lbl" xml:lang="en-US">Balance End Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_OtherProvisions_lbl" xml:lang="en-US">Balance Beginning period</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsNewProvisionsOtherProvisions" xlink:label="ec_IfrsNewProvisionsOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsNewProvisionsOtherProvisions" xlink:to="ec_IfrsNewProvisionsOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsNewProvisionsOtherProvisions_lbl" xml:lang="en-US">The amount recognised for new other provisions. [Refer: Other provisions]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsNewProvisionsOtherProvisions_lbl" xml:lang="en-US">Ifrs New Provisions Other Provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsNewProvisionsOtherProvisions_lbl" xml:lang="en-US">Abandonment cost update</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInReversals" xlink:label="ec_IncreaseDecreaseInReversals" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInReversals" xlink:to="ec_IncreaseDecreaseInReversals_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInReversals_lbl" xml:lang="en-US">It represents the increase decrease In reversals.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInReversals_lbl" xml:lang="en-US">Increase Decrease In Reversals</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseInReversals_lbl" xml:lang="en-US">Additions (recoveries)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionUsedOtherProvisions" xlink:label="ifrs-full_ProvisionUsedOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionUsedOtherProvisions" xlink:to="ifrs-full_ProvisionUsedOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProvisionUsedOtherProvisions_lbl" xml:lang="en-US">Provision used, other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ProvisionUsedOtherProvisions_lbl" xml:lang="en-US">Uses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" xlink:label="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" xlink:to="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions_lbl" xml:lang="en-US">Increase (decrease) through change in discount rate, other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions_lbl" xml:lang="en-US">Financial costs and interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xml:lang="en-US">Acquisitions through business combinations, other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xml:lang="en-US">Fair value adjustment in business combination</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:to="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" xml:lang="en-US">Unused provision reversed, other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" xml:lang="en-US">Reversal of fields</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" xml:lang="en-US">Increase (decrease) through net exchange differences, other provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" xml:lang="en-US">Foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" xml:lang="en-US">Transfers</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" xml:lang="en-US">Transfers</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherShorttermProvisions" xlink:label="ifrs-full_OtherShorttermProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherShorttermProvisions" xlink:to="ifrs-full_OtherShorttermProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherShorttermProvisions_lbl" xml:lang="en-US">Other current provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherShorttermProvisions_lbl" xml:lang="en-US">Current</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLongtermProvisions" xlink:label="ifrs-full_OtherLongtermProvisions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherLongtermProvisions" xlink:to="ifrs-full_OtherLongtermProvisions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherLongtermProvisions_lbl" xml:lang="en-US">Other non-current provisions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherLongtermProvisions_lbl" xml:lang="en-US">Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LettersOfCreditsOneMember" xlink:label="ec_LettersOfCreditsOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LettersOfCreditsOneMember" xlink:to="ec_LettersOfCreditsOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LettersOfCreditsOneMember_lbl" xml:lang="en-US">Represents the information pertaining to letters of credits one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LettersOfCreditsOneMember_lbl" xml:lang="en-US">Letters of Credits One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LettersOfCreditsOneMember_lbl" xml:lang="en-US">Letters of credits one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LettersOfCreditsTwoMember" xlink:label="ec_LettersOfCreditsTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LettersOfCreditsTwoMember" xlink:to="ec_LettersOfCreditsTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LettersOfCreditsTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to letters of credits two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LettersOfCreditsTwoMember_lbl" xml:lang="en-US">Letters of Credits Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LettersOfCreditsTwoMember_lbl" xml:lang="en-US">Letters of credits two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RefineriaDeCartagenaSASMember" xlink:label="ec_RefineriaDeCartagenaSASMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RefineriaDeCartagenaSASMember" xlink:to="ec_RefineriaDeCartagenaSASMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RefineriaDeCartagenaSASMember_lbl" xml:lang="en-US">Refineria de Cartagena</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RefineriaDeCartagenaSASMember_lbl" xml:lang="en-US">Refineria de Cartagena S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:to="ifrs-full_ClassesOfContingentLiabilitiesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesAxis_lbl" xml:lang="en-US">Classes of contingent liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:to="ifrs-full_ClassesOfContingentLiabilitiesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesDomain_lbl" xml:lang="en-US">Classes of contingent liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LegalProceedingsContingentLiabilityMember" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LegalProceedingsContingentLiabilityMember" xlink:to="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" xml:lang="en-US">Legal proceedings contingent liability [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" xml:lang="en-US">Contingent liability</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_VatOnImportsOfGasolineAndDieselFuelMember" xlink:label="ec_VatOnImportsOfGasolineAndDieselFuelMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_VatOnImportsOfGasolineAndDieselFuelMember" xlink:to="ec_VatOnImportsOfGasolineAndDieselFuelMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_VatOnImportsOfGasolineAndDieselFuelMember_lbl" xml:lang="en-US">This member stands for contingencies related to VAT on imports of gasoline and diesel fuel.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_VatOnImportsOfGasolineAndDieselFuelMember_lbl" xml:lang="en-US">VAT on Imports of Gasoline and Diesel Fuel [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_VatOnImportsOfGasolineAndDieselFuelMember_lbl" xml:lang="en-US">VAT on Imports of Gasoline and Diesel Fuel</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AnnulmentAndRestorationOfRightsActionsMember" xlink:label="ec_AnnulmentAndRestorationOfRightsActionsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AnnulmentAndRestorationOfRightsActionsMember" xlink:to="ec_AnnulmentAndRestorationOfRightsActionsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AnnulmentAndRestorationOfRightsActionsMember_lbl" xml:lang="en-US">A classification used to represent contingent liabilities arising from administrative or judicial proceedings in which an entity seeks the annulment (cancellation) of an administrative or regulatory act and the restoration of legal or economic rights allegedly affected by such act.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AnnulmentAndRestorationOfRightsActionsMember_lbl" xml:lang="en-US">Annulment and Restoration of Rights Actions [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AnnulmentAndRestorationOfRightsActionsMember_lbl" xml:lang="en-US">Annulment and restoration of rights</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember" xlink:label="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember" xlink:to="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember_lbl" xml:lang="en-US">A classification used to represent contingent liabilities arising from tax authority decisions that determine a taxpayer's obligations (official tax assessments), together with subsequent administrative rulings that confirm, uphold, or partially revise those determinations upon reconsideration or appeal (confirmatory resolutions).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember_lbl" xml:lang="en-US">Official Tax Assessments and Confirmatory Resolutions [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OfficialTaxAssessmentsAndConfirmatoryResolutionsMember_lbl" xml:lang="en-US">Official tax assessments and their confirmatory resolutions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsTaxPeriodAxis" xlink:label="ec_IfrsTaxPeriodAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsTaxPeriodAxis" xlink:to="ec_IfrsTaxPeriodAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsTaxPeriodAxis_lbl" xml:lang="en-US">Information by period subject to enacted tax law.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsTaxPeriodAxis_lbl" xml:lang="en-US">Ifrs Tax Period [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsTaxPeriodDomain" xlink:label="ec_IfrsTaxPeriodDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsTaxPeriodDomain" xlink:to="ec_IfrsTaxPeriodDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsTaxPeriodDomain_lbl" xml:lang="en-US">Identified tax period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsTaxPeriodDomain_lbl" xml:lang="en-US">Ifrs Tax Period [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxPeriodsBetween2022And2024Member" xlink:label="ec_TaxPeriodsBetween2022And2024Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxPeriodsBetween2022And2024Member" xlink:to="ec_TaxPeriodsBetween2022And2024Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxPeriodsBetween2022And2024Member_lbl" xml:lang="en-US">This member stands for tax periods between 2022 and 2024.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxPeriodsBetween2022And2024Member_lbl" xml:lang="en-US">Tax Periods Between 2022 and 2024 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxPeriodsBetween2022And2024Member_lbl" xml:lang="en-US">Tax Periods Between 2022 and 2024</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:label="ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:to="ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_lbl" xml:lang="en-US">Discount rate applied to cash flow projections</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_lbl" xml:lang="en-US">Discount rates used in the estimate of the obligation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MandatoryInvestmentsNaturalResources" xlink:label="ec_MandatoryInvestmentsNaturalResources" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MandatoryInvestmentsNaturalResources" xlink:to="ec_MandatoryInvestmentsNaturalResources_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MandatoryInvestmentsNaturalResources_lbl" xml:lang="en-US">The amount of investments made during the period, mandatorily on usage of natural resources.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MandatoryInvestmentsNaturalResources_lbl" xml:lang="en-US">Mandatory investments, natural resources</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MandatoryInvestmentsNaturalResources_lbl" xml:lang="en-US">Environmental compensation and mandatory investment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting" xlink:label="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting" xlink:to="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting_lbl" xml:lang="en-US">Number of minimum current plans executed for environmental offsetting.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting_lbl" xml:lang="en-US">Minimum Current Plans Executed for Environmental Offsetting</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumCurrentPlansExecutedForEnvironmentalOffsetting_lbl" xml:lang="en-US">Minimum current plans executed</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForcedInvestmentsNaturalResourcesPercentage" xlink:label="ec_ForcedInvestmentsNaturalResourcesPercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForcedInvestmentsNaturalResourcesPercentage" xlink:to="ec_ForcedInvestmentsNaturalResourcesPercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForcedInvestmentsNaturalResourcesPercentage_lbl" xml:lang="en-US">Percentage of forced investments for natural resources.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForcedInvestmentsNaturalResourcesPercentage_lbl" xml:lang="en-US">Forced Investments Natural Resources, Percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForcedInvestmentsNaturalResourcesPercentage_lbl" xml:lang="en-US">Percentage of forced investment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfVoluntaryConservationAgreements" xlink:label="ec_NumberOfVoluntaryConservationAgreements" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfVoluntaryConservationAgreements" xlink:to="ec_NumberOfVoluntaryConservationAgreements_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfVoluntaryConservationAgreements_lbl" xml:lang="en-US">Total number of voluntary conservation agreements implemented as part of environmental protection, conservation, and preservation initiatives.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfVoluntaryConservationAgreements_lbl" xml:lang="en-US">Number Of Voluntary Conservation Agreements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfVoluntaryConservationAgreements_lbl" xml:lang="en-US">Number of voluntary conservation agreements</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MinimumPercentageOfExecutionOfForcedObligation" xlink:label="ec_MinimumPercentageOfExecutionOfForcedObligation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MinimumPercentageOfExecutionOfForcedObligation" xlink:to="ec_MinimumPercentageOfExecutionOfForcedObligation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MinimumPercentageOfExecutionOfForcedObligation_lbl" xml:lang="en-US">Minimum percentage of execution of forced obligation for the resources have been invested in protection, conservation and preservation actions through voluntary conservation agreements, purchase of properties intended for conservation, ecological restoration and reforestation and the achievement of the signing of the first agreement with IDEAM.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MinimumPercentageOfExecutionOfForcedObligation_lbl" xml:lang="en-US">Minimum Percentage of Execution of Forced Obligation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MinimumPercentageOfExecutionOfForcedObligation_lbl" xml:lang="en-US">Minimum Percentage of Execution of Forced Obligation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfOfficialAssessmentsIssued" xlink:label="ec_NumberOfOfficialAssessmentsIssued" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfOfficialAssessmentsIssued" xlink:to="ec_NumberOfOfficialAssessmentsIssued_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfOfficialAssessmentsIssued_lbl" xml:lang="en-US">The number of official assessments issued.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfOfficialAssessmentsIssued_lbl" xml:lang="en-US">Number of Official Assessments Issued</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfOfficialAssessmentsIssued_lbl" xml:lang="en-US">Number of official assessments issued</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxAssessmentsTaxAndPenalties" xlink:label="ec_ValueAddedTaxAssessmentsTaxAndPenalties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxAssessmentsTaxAndPenalties" xlink:to="ec_ValueAddedTaxAssessmentsTaxAndPenalties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxAssessmentsTaxAndPenalties_lbl" xml:lang="en-US">The amount of value added tax and penalties arising from VAT assessments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxAssessmentsTaxAndPenalties_lbl" xml:lang="en-US">Value Added Tax Assessments, Tax and Penalties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxAssessmentsTaxAndPenalties_lbl" xml:lang="en-US">Value added tax assessments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxAssessmentsInterestAccrued" xlink:label="ec_ValueAddedTaxAssessmentsInterestAccrued" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxAssessmentsInterestAccrued" xlink:to="ec_ValueAddedTaxAssessmentsInterestAccrued_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxAssessmentsInterestAccrued_lbl" xml:lang="en-US">The amount of interest accrued from VAT assessments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxAssessmentsInterestAccrued_lbl" xml:lang="en-US">Value Added Tax Assessments, Interest Accrued</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxAssessmentsInterestAccrued_lbl" xml:lang="en-US">Value added tax assessments, Interest accrued</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfLegalProceedingsFiled" xlink:label="ec_NumberOfLegalProceedingsFiled" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfLegalProceedingsFiled" xlink:to="ec_NumberOfLegalProceedingsFiled_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfLegalProceedingsFiled_lbl" xml:lang="en-US">The total number of legal proceedings, lawsuits, or administrative actions that have been formally initiated and filed by the reporting entity before competent judicial or regulatory authorities during the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfLegalProceedingsFiled_lbl" xml:lang="en-US">Number of Legal Proceedings Filed</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfLegalProceedingsFiled_lbl" xml:lang="en-US">Total number of legal proceedings, lawsuits</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfLegalProceedingsRemaining" xlink:label="ec_NumberOfLegalProceedingsRemaining" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfLegalProceedingsRemaining" xlink:to="ec_NumberOfLegalProceedingsRemaining_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfLegalProceedingsRemaining_lbl" xml:lang="en-US">The number of additional legal proceedings that the entity is legally entitled or required to file in future periods but has not yet initiated as of the reporting date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfLegalProceedingsRemaining_lbl" xml:lang="en-US">Number of Legal Proceedings Remaining</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfLegalProceedingsRemaining_lbl" xml:lang="en-US">Number of additional legal proceedings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_VatAssessmentContingencyProbabilityOfSuccess" xlink:label="ec_VatAssessmentContingencyProbabilityOfSuccess" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_VatAssessmentContingencyProbabilityOfSuccess" xlink:to="ec_VatAssessmentContingencyProbabilityOfSuccess_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_VatAssessmentContingencyProbabilityOfSuccess_lbl" xml:lang="en-US">The probability of success based on opinion of external advisors on VAT assessment contingencies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_VatAssessmentContingencyProbabilityOfSuccess_lbl" xml:lang="en-US">VAT Assessment, Contingency, Probability of Success</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_VatAssessmentContingencyProbabilityOfSuccess_lbl" xml:lang="en-US">VAT assessment, Contingency, Probability of success</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxPayments" xlink:label="ec_ValueAddedTaxPayments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxPayments" xlink:to="ec_ValueAddedTaxPayments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxPayments_lbl" xml:lang="en-US">The amount of payments made for value added tax.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxPayments_lbl" xml:lang="en-US">Value Added Tax Payments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxPayments_lbl" xml:lang="en-US">Value added tax payments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ValueAddedTaxRecoverableCreditsAndRefund" xlink:label="ec_ValueAddedTaxRecoverableCreditsAndRefund" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ValueAddedTaxRecoverableCreditsAndRefund" xlink:to="ec_ValueAddedTaxRecoverableCreditsAndRefund_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ValueAddedTaxRecoverableCreditsAndRefund_lbl" xml:lang="en-US">The amount of value added tax recoverable from credits and refund.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ValueAddedTaxRecoverableCreditsAndRefund_lbl" xml:lang="en-US">Value Added Tax, Recoverable, Credits and Refund</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ValueAddedTaxRecoverableCreditsAndRefund_lbl" xml:lang="en-US">Value added tax, Recoverable, Credits and refund</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LegalProceedingsInProcessClaimsMadeValue" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LegalProceedingsInProcessClaimsMadeValue" xlink:to="ec_LegalProceedingsInProcessClaimsMadeValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValue_lbl" xml:lang="en-US">The amount of claims demanded before arbitrage in a legal proceedings that is in process in front of a court of Law.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValue_lbl" xml:lang="en-US">Legal proceedings in process, claims made, value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContingentAssetNonDetailedCounterclaim" xlink:label="ec_ContingentAssetNonDetailedCounterclaim" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContingentAssetNonDetailedCounterclaim" xlink:to="ec_ContingentAssetNonDetailedCounterclaim_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ContingentAssetNonDetailedCounterclaim_lbl" xml:lang="en-US">Amount of contingent asset non detailed counterclaim.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContingentAssetNonDetailedCounterclaim_lbl" xml:lang="en-US">Contingent asset non detailed counterclaim</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContingentAssetComplianceLetterOfCredit" xlink:label="ec_ContingentAssetComplianceLetterOfCredit" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContingentAssetComplianceLetterOfCredit" xlink:to="ec_ContingentAssetComplianceLetterOfCredit_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ContingentAssetComplianceLetterOfCredit_lbl" xml:lang="en-US">Amount of contingent asset compliance letter of credit.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContingentAssetComplianceLetterOfCredit_lbl" xml:lang="en-US">Contingent Asset Compliance Letter Of Credit</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ContingentAssetComplianceLetterOfCredit_lbl" xml:lang="en-US">Letter of credit compliance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContingentAssetClaim" xlink:label="ec_ContingentAssetClaim" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContingentAssetClaim" xlink:to="ec_ContingentAssetClaim_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ContingentAssetClaim_lbl" xml:lang="en-US">Amount of contingent asset claim.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContingentAssetClaim_lbl" xml:lang="en-US">Contingent asset claim</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContingentAssetClaimInvoicesProvisionallyPaid" xlink:label="ec_ContingentAssetClaimInvoicesProvisionallyPaid" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContingentAssetClaimInvoicesProvisionallyPaid" xlink:to="ec_ContingentAssetClaimInvoicesProvisionallyPaid_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ContingentAssetClaimInvoicesProvisionallyPaid_lbl" xml:lang="en-US">Represents the cash outflow for contingent asset claim invoices provisionally paid.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContingentAssetClaimInvoicesProvisionallyPaid_lbl" xml:lang="en-US">Contingent Asset Claim Invoices Provisionally Paid</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ContingentAssetClaimInvoicesProvisionallyPaid_lbl" xml:lang="en-US">Contingent asset claim invoices provisionally paid</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest" xlink:to="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest_lbl" xml:lang="en-US">The updated value including interest of contingent asset claim.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest_lbl" xml:lang="en-US">Legal Proceedings In Process, Claims Made, Value Updated Including Interest</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LegalProceedingsInProcessClaimsMadeValueUpdatedIncludingInterest_lbl" xml:lang="en-US">Legal proceedings in process, claims made, value updated including interest</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsLitigationSettlementAmountAwardedToOtherParty" xlink:label="ec_IfrsLitigationSettlementAmountAwardedToOtherParty" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsLitigationSettlementAmountAwardedToOtherParty" xlink:to="ec_IfrsLitigationSettlementAmountAwardedToOtherParty_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsLitigationSettlementAmountAwardedToOtherParty_lbl" xml:lang="en-US">Amount awarded to other party in judgment or settlement of litigation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsLitigationSettlementAmountAwardedToOtherParty_lbl" xml:lang="en-US">ifrs Litigation Settlement, Amount Awarded to Other Party</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsLitigationSettlementAmountAwardedToOtherParty_lbl" xml:lang="en-US">Amount awarded to other party</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DismissalOfClaimAmountByPlaintiff" xlink:label="ec_DismissalOfClaimAmountByPlaintiff" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DismissalOfClaimAmountByPlaintiff" xlink:to="ec_DismissalOfClaimAmountByPlaintiff_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DismissalOfClaimAmountByPlaintiff_lbl" xml:lang="en-US">Amount of claim amount by plaintiff.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DismissalOfClaimAmountByPlaintiff_lbl" xml:lang="en-US">Dismissal of Claim Amount by Plaintiff</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DismissalOfClaimAmountByPlaintiff_lbl" xml:lang="en-US">Dismissal of claim amount by Plaintif</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumExposureToCreditRiskOfLoansOrReceivables1" xlink:label="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1" xlink:to="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1_lbl" xml:lang="en-US">The maximum exposure to the credit risk of loans or receivables. [Refer: Loans and receivables; Credit risk [member]; Maximum exposure to credit risk]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1_lbl" xml:lang="en-US">Maximum Exposure To Credit Risk Of Loans Or Receivables1</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_MaximumExposureToCreditRiskOfLoansOrReceivables1_lbl" xml:lang="en-US">Maximum credit loan</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CorrespondingToReimbursementOfLegalFees" xlink:label="ec_CorrespondingToReimbursementOfLegalFees" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CorrespondingToReimbursementOfLegalFees" xlink:to="ec_CorrespondingToReimbursementOfLegalFees_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CorrespondingToReimbursementOfLegalFees_lbl" xml:lang="en-US">Corresponding to reimbursement of legal fees.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CorrespondingToReimbursementOfLegalFees_lbl" xml:lang="en-US">Corresponding To Reimbursement Of Legal Fees</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CorrespondingToReimbursementOfLegalFees_lbl" xml:lang="en-US">Legal fees</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets_lbl" xml:lang="en-US">Increase (decrease) through changes in models or risk parameters, financial assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets_lbl" xml:lang="en-US">Fair value valuation of shares</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProceedsFromSaleOfBusiness" xlink:label="ec_ProceedsFromSaleOfBusiness" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProceedsFromSaleOfBusiness" xlink:to="ec_ProceedsFromSaleOfBusiness_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProceedsFromSaleOfBusiness_lbl" xml:lang="en-US">The cash inflow from sale of business.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProceedsFromSaleOfBusiness_lbl" xml:lang="en-US">Proceeds from Sale of Business</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProceedsFromSaleOfBusiness_lbl" xml:lang="en-US">Proceeds from sale of business</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfFormerOfficials" xlink:label="ec_NumberOfFormerOfficials" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfFormerOfficials" xlink:to="ec_NumberOfFormerOfficials_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfFormerOfficials_lbl" xml:lang="en-US">Number of former officials.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfFormerOfficials_lbl" xml:lang="en-US">Number Of Former Officials</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfFormerOfficials_lbl" xml:lang="en-US">Number of former officials</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfFormerPresidents" xlink:label="ec_NumberOfFormerPresidents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfFormerPresidents" xlink:to="ec_NumberOfFormerPresidents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfFormerPresidents_lbl" xml:lang="en-US">Number of former presidents.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfFormerPresidents_lbl" xml:lang="en-US">Number Of Former Presidents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfFormerPresidents_lbl" xml:lang="en-US">Number of former presidents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfFormerFinancialVicePresidents" xlink:label="ec_NumberOfFormerFinancialVicePresidents" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfFormerFinancialVicePresidents" xlink:to="ec_NumberOfFormerFinancialVicePresidents_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfFormerFinancialVicePresidents_lbl" xml:lang="en-US">Number of former financial vice-presidents.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfFormerFinancialVicePresidents_lbl" xml:lang="en-US">Number Of Former Financial Vice Presidents</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfFormerFinancialVicePresidents_lbl" xml:lang="en-US">Number of former financial vice-presidents</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfFormerOfficialsBeingInvestigated" xlink:label="ec_NumberOfFormerOfficialsBeingInvestigated" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfFormerOfficialsBeingInvestigated" xlink:to="ec_NumberOfFormerOfficialsBeingInvestigated_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfFormerOfficialsBeingInvestigated_lbl" xml:lang="en-US">Number of former officials being investigated.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfFormerOfficialsBeingInvestigated_lbl" xml:lang="en-US">Number of Former Officials Being Investigated</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfFormerOfficialsBeingInvestigated_lbl" xml:lang="en-US">Number of former officials being investigated</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnidentifiedExpensesForSpecifiedPeriod" xlink:label="ec_UnidentifiedExpensesForSpecifiedPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnidentifiedExpensesForSpecifiedPeriod" xlink:to="ec_UnidentifiedExpensesForSpecifiedPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UnidentifiedExpensesForSpecifiedPeriod_lbl" xml:lang="en-US">Amount of unidentified expenses for specified period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnidentifiedExpensesForSpecifiedPeriod_lbl" xml:lang="en-US">Unidentified Expenses for Specified Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UnidentifiedExpensesForSpecifiedPeriod_lbl" xml:lang="en-US">Unidentified expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnidentifiedProjectCostWhenEntered" xlink:label="ec_UnidentifiedProjectCostWhenEntered" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnidentifiedProjectCostWhenEntered" xlink:to="ec_UnidentifiedProjectCostWhenEntered_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UnidentifiedProjectCostWhenEntered_lbl" xml:lang="en-US">Amount of unidentified project cost when entered.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnidentifiedProjectCostWhenEntered_lbl" xml:lang="en-US">Unidentified Project Cost When Entered</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UnidentifiedProjectCostWhenEntered_lbl" xml:lang="en-US">Unidentified project cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsDebtInstrumentTerm" xlink:label="ec_IfrsDebtInstrumentTerm" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsDebtInstrumentTerm" xlink:to="ec_IfrsDebtInstrumentTerm_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsDebtInstrumentTerm_lbl" xml:lang="en-US">Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsDebtInstrumentTerm_lbl" xml:lang="en-US">Ifrs Debt Instrument, Term</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsDebtInstrumentTerm_lbl" xml:lang="en-US">Term of subject to adjustments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IfrsDebtInstrumentTerm_lbl" xml:lang="en-US">Maturity period</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LitigationAxis" xlink:label="ec_LitigationAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LitigationAxis" xlink:to="ec_LitigationAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LitigationAxis_lbl" xml:lang="en-US">Litigation [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LitigationDomain" xlink:label="ec_LitigationDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LitigationDomain" xlink:to="ec_LitigationDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LitigationDomain_lbl" xml:lang="en-US">Litigation [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaEnergiaBrasilCivilContingencyCaseMember" xlink:label="ec_IsaEnergiaBrasilCivilContingencyCaseMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaEnergiaBrasilCivilContingencyCaseMember" xlink:to="ec_IsaEnergiaBrasilCivilContingencyCaseMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaEnergiaBrasilCivilContingencyCaseMember_lbl" xml:lang="en-US">This member stands for ISA Energia Brasil civil contingency case.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaEnergiaBrasilCivilContingencyCaseMember_lbl" xml:lang="en-US">ISA Energia Brasil, Civil Contingency, Case [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaEnergiaBrasilCivilContingencyCaseMember_lbl" xml:lang="en-US">ISA Energa Brasil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RegulatoryContingencyCaseMember" xlink:label="ec_RegulatoryContingencyCaseMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RegulatoryContingencyCaseMember" xlink:to="ec_RegulatoryContingencyCaseMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RegulatoryContingencyCaseMember_lbl" xml:lang="en-US">This member stands for regulatory contingency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RegulatoryContingencyCaseMember_lbl" xml:lang="en-US">Regulatory Contingency, Case [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RegulatoryContingencyCaseMember_lbl" xml:lang="en-US">Regulatory Contingency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember" xlink:label="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember" xlink:to="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember_lbl" xml:lang="en-US">This member stands for unfavorable first instance ruling for Ecopetrol in the process of remediating the damages associated with the hydrocarbon spill that occurred in Guaduas, Vereda Raizal and Cajn, in the property called "La Floresta" in May 2004.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember_lbl" xml:lang="en-US">Remediating for Damages Associated With Hydrocarbon Spill Case [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RemediatingForDamagesAssociatedWithHydrocarbonSpillCaseMember_lbl" xml:lang="en-US">Remediating the damages associated with the hydrocarbon spill</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdministrativeProcessesCaseMember" xlink:label="ec_AdministrativeProcessesCaseMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdministrativeProcessesCaseMember" xlink:to="ec_AdministrativeProcessesCaseMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdministrativeProcessesCaseMember_lbl" xml:lang="en-US">Administrative processes case</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdministrativeProcessesCaseMember_lbl" xml:lang="en-US">Administrative Processes Case [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdministrativeProcessesCaseMember_lbl" xml:lang="en-US">Administrative processes case</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DamagesCausedByExportActivitiesMember" xlink:label="ec_DamagesCausedByExportActivitiesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DamagesCausedByExportActivitiesMember" xlink:to="ec_DamagesCausedByExportActivitiesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DamagesCausedByExportActivitiesMember_lbl" xml:lang="en-US">This member stands for damages caused by export activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DamagesCausedByExportActivitiesMember_lbl" xml:lang="en-US">Damages Caused by Export Activities [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DamagesCausedByExportActivitiesMember_lbl" xml:lang="en-US">Damages caused by export activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Transelca.RegulatoryContingencyMember" xlink:label="ec_Transelca.RegulatoryContingencyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Transelca.RegulatoryContingencyMember" xlink:to="ec_Transelca.RegulatoryContingencyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Transelca.RegulatoryContingencyMember_lbl" xml:lang="en-US">Transelca. Regulatory Contingency [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Transelca.RegulatoryContingencyMember_lbl" xml:lang="en-US">Transelca. Regulatory Contingency [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Transelca.RegulatoryContingencyMember_lbl" xml:lang="en-US">Transelca. Regulatory contingency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LegalProceedingsInProcessDamagesSoughtValue" xlink:label="ec_LegalProceedingsInProcessDamagesSoughtValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LegalProceedingsInProcessDamagesSoughtValue" xlink:to="ec_LegalProceedingsInProcessDamagesSoughtValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LegalProceedingsInProcessDamagesSoughtValue_lbl" xml:lang="en-US">The value (monetary amount) of the award the plaintiff seeks in the legal matter.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LegalProceedingsInProcessDamagesSoughtValue_lbl" xml:lang="en-US">Legal proceedings in process, damages sought, value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LegalProceedingsInProcessDamagesSoughtValue_lbl" xml:lang="en-US">Legal proceedings in process, damages sought, value</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OrdinaryLaborMember" xlink:label="ec_OrdinaryLaborMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OrdinaryLaborMember" xlink:to="ec_OrdinaryLaborMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OrdinaryLaborMember_lbl" xml:lang="en-US">This member stands for ordinary labor.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OrdinaryLaborMember_lbl" xml:lang="en-US">Ordinary Labor [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OrdinaryLaborMember_lbl" xml:lang="en-US">Labor</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OrdinaryAdministrativeMember" xlink:label="ec_OrdinaryAdministrativeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OrdinaryAdministrativeMember" xlink:to="ec_OrdinaryAdministrativeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OrdinaryAdministrativeMember_lbl" xml:lang="en-US">This member stands for ordinary administrative.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OrdinaryAdministrativeMember_lbl" xml:lang="en-US">Ordinary Administrative [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OrdinaryAdministrativeMember_lbl" xml:lang="en-US">Ordinary administrative</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConstitutionalActionMember" xlink:label="ec_ConstitutionalActionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConstitutionalActionMember" xlink:to="ec_ConstitutionalActionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConstitutionalActionMember_lbl" xml:lang="en-US">This member stands for constitutional action.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConstitutionalActionMember_lbl" xml:lang="en-US">Constitutional Action [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ConstitutionalActionMember_lbl" xml:lang="en-US">Constitutional</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OrdinaryCivilMember" xlink:label="ec_OrdinaryCivilMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OrdinaryCivilMember" xlink:to="ec_OrdinaryCivilMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OrdinaryCivilMember_lbl" xml:lang="en-US">This member stands for ordinary civil.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OrdinaryCivilMember_lbl" xml:lang="en-US">Ordinary Civil [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OrdinaryCivilMember_lbl" xml:lang="en-US">Civil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PenalMember" xlink:label="ec_PenalMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PenalMember" xlink:to="ec_PenalMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PenalMember_lbl" xml:lang="en-US">This member stands for penal.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PenalMember_lbl" xml:lang="en-US">Penal [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PenalMember_lbl" xml:lang="en-US">Penal</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsArbitrationMember" xlink:label="ec_IfrsArbitrationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsArbitrationMember" xlink:to="ec_IfrsArbitrationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsArbitrationMember_lbl" xml:lang="en-US">This member stands for arbitration.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsArbitrationMember_lbl" xml:lang="en-US">IFRS Arbitration [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsArbitrationMember_lbl" xml:lang="en-US">Arbitration</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfProcessesOfLegalProceedingsNotRecognised" xlink:label="ec_NumberOfProcessesOfLegalProceedingsNotRecognised" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfProcessesOfLegalProceedingsNotRecognised" xlink:to="ec_NumberOfProcessesOfLegalProceedingsNotRecognised_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfProcessesOfLegalProceedingsNotRecognised_lbl" xml:lang="en-US">Represents the number of processes legal proceedings not recognised.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfProcessesOfLegalProceedingsNotRecognised_lbl" xml:lang="en-US">Number of Processes Of Legal Proceedings Not Recognised</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfProcessesOfLegalProceedingsNotRecognised_lbl" xml:lang="en-US">Number of processes of contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LossContingencyUnrecordedAmount" xlink:label="ec_LossContingencyUnrecordedAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LossContingencyUnrecordedAmount" xlink:to="ec_LossContingencyUnrecordedAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LossContingencyUnrecordedAmount_lbl" xml:lang="en-US">The amount of contingent liabilities those are not recorded during the period due to few chances of their occurrence as of the date.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LossContingencyUnrecordedAmount_lbl" xml:lang="en-US">Loss contingency, unrecorded amount</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LossContingencyUnrecordedAmount_lbl" xml:lang="en-US">Amounts involved of contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfProcessesOfContingentAssets" xlink:label="ec_NumberOfProcessesOfContingentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfProcessesOfContingentAssets" xlink:to="ec_NumberOfProcessesOfContingentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfProcessesOfContingentAssets_lbl" xml:lang="en-US">Represents the number of processes of contingent assets.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfProcessesOfContingentAssets_lbl" xml:lang="en-US">Number of Processes Of Contingent Assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfProcessesOfContingentAssets_lbl" xml:lang="en-US">Number of processes of contingent assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimatedFinancialEffectOfContingentAssets" xlink:label="ifrs-full_EstimatedFinancialEffectOfContingentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EstimatedFinancialEffectOfContingentAssets" xlink:to="ifrs-full_EstimatedFinancialEffectOfContingentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EstimatedFinancialEffectOfContingentAssets_lbl" xml:lang="en-US">Estimated financial effect of contingent assets</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EstimatedFinancialEffectOfContingentAssets_lbl" xml:lang="en-US">Amounts involved of contingent assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfChangesInEquityTable" xlink:label="ec_DisclosureOfChangesInEquityTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfChangesInEquityTable" xlink:to="ec_DisclosureOfChangesInEquityTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfChangesInEquityTable_lbl" xml:lang="en-US">Schedule disclosing information related to details of changes in equity.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfChangesInEquityTable_lbl" xml:lang="en-US">Disclosure of changes in equity [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatutoryReserveMember" xlink:label="ifrs-full_StatutoryReserveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatutoryReserveMember" xlink:to="ifrs-full_StatutoryReserveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatutoryReserveMember_lbl" xml:lang="en-US">Legal reserve</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_StatutoryReserveMember_lbl" xml:lang="en-US">Legal reserve</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalReserveMember" xlink:label="ifrs-full_CapitalReserveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CapitalReserveMember" xlink:to="ifrs-full_CapitalReserveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CapitalReserveMember_lbl" xml:lang="en-US">Fiscal and statutory reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CapitalReserveMember_lbl" xml:lang="en-US">Fiscal and statutory reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherReservesMember" xlink:label="ifrs-full_MiscellaneousOtherReservesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousOtherReservesMember" xlink:to="ifrs-full_MiscellaneousOtherReservesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousOtherReservesMember_lbl" xml:lang="en-US">Occasional reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MiscellaneousOtherReservesMember_lbl" xml:lang="en-US">Other reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfChangesInEquityLineItems" xlink:label="ec_DisclosureOfChangesInEquityLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfChangesInEquityLineItems" xlink:to="ec_DisclosureOfChangesInEquityLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DisclosureOfChangesInEquityLineItems_lbl" xml:lang="en-US">Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfChangesInEquityLineItems_lbl" xml:lang="en-US">Disclosure of changes in equity [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfChangesInEquityLineItems_lbl" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquityReservesMember" xlink:label="ec_EquityReservesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquityReservesMember" xlink:to="ec_EquityReservesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EquityReservesMember_lbl" xml:lang="en-US">This member stands for equity reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquityReservesMember_lbl" xml:lang="en-US">Equity reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EquityReservesMember_lbl" xml:lang="en-US">Equity reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReleaseOfReserves" xlink:label="ec_ReleaseOfReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReleaseOfReserves" xlink:to="ec_ReleaseOfReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReleaseOfReserves_lbl" xml:lang="en-US">The amount of reserves released.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReleaseOfReserves_lbl" xml:lang="en-US">Release of reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ReleaseOfReserves_lbl" xml:lang="en-US">Release of reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity" xlink:label="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity" xlink:to="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity_lbl" xml:lang="en-US">The increase (decrease) in equity resulting from transfers between a legal reserve and retained earnings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity_lbl" xml:lang="en-US">Increase decrease through transfer between legal reserve and retained earnings, equity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseThroughTransferBetweenLegalReserveAndRetainedEarningsEquity_lbl" xml:lang="en-US">Appropriation of reserves</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember" xlink:label="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember" xlink:to="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember_lbl" xml:lang="en-US">This member stands for Oleoducto de los Llanos Orientales S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember_lbl" xml:lang="en-US">Oleoducto de los Llanos Orientales S.A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OleoductoDeLosLlanosOrientalesSAUnitedODLMember_lbl" xml:lang="en-US">Oleoducto de los Llanos Orientales S. A. - ODL</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoDeColombiaSaOdcMember" xlink:label="ec_OleoductoDeColombiaSaOdcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoDeColombiaSaOdcMember" xlink:to="ec_OleoductoDeColombiaSaOdcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OleoductoDeColombiaSaOdcMember_lbl" xml:lang="en-US">This member stands for Oleoducto de Colombia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoDeColombiaSaOdcMember_lbl" xml:lang="en-US">Oleoducto de Colombia S.A. - ODC</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OleoductoDeColombiaSaOdcMember_lbl" xml:lang="en-US">Oleoducto de Colombia S.A. - ODC</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, related to exchange differences when financial statements of foreign operations are translated.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations_lbl" xml:lang="en-US">Other Comprehensive Income Net Of Tax Exchange Differences On Translations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslations_lbl" xml:lang="en-US">Accumulated foreign currency translation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Other Comprehensive Income Net Of Tax Gain Loss On Remeasurements Of Defined Benefit Plans</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainLossOnRemeasurementsOfDefinedBenefitPlans_lbl" xml:lang="en-US">Accumulated actuarial gain on defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges" xlink:to="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges_lbl" xml:lang="en-US">The amount of other comprehensive income, net of tax, related to cash flow hedges.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges_lbl" xml:lang="en-US">Other Comprehensive Income Loss Net Of Tax Cash Flow Hedges</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedges_lbl" xml:lang="en-US">Cash flow hedges for future exports</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments" xlink:to="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments_lbl" xml:lang="en-US">The amount of other comprehensive income (loss), net of tax, related to cash flow hedge with derivative instruments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments_lbl" xml:lang="en-US">Other Comprehensive Income Loss Net Of Tax Cash Flow Hedge With Derivative Instruments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherComprehensiveIncomeLossNetOfTaxCashFlowHedgeWithDerivativeInstruments_lbl" xml:lang="en-US">Cash flow hedge with derivative instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers_lbl" xml:lang="en-US">The gains (losses) recognised in other comprehensive income, which id classified as other.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers_lbl" xml:lang="en-US">Other comprehensive income, net of tax, gains losses on others</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLossesOnOthers_lbl" xml:lang="en-US">Others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherComprehensiveIncomeNetOfTaxGainsLosses" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses" xlink:to="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses_lbl" xml:lang="en-US">The gains (losses) recognised in other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses_lbl" xml:lang="en-US">Other comprehensive income, net of tax, gains losses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_OtherComprehensiveIncomeNetOfTaxGainsLosses_lbl" xml:lang="en-US">Other comprehensive income attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesOutstanding" xlink:label="ifrs-full_NumberOfSharesOutstanding" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesOutstanding" xlink:to="ifrs-full_NumberOfSharesOutstanding_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl" xml:lang="en-US">Number of shares outstanding</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl" xml:lang="en-US">Weighted average number of outstanding ordinary shares</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl" xml:lang="en-US">Number of outstanding shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialGuaranteeContractsMember" xlink:label="ifrs-full_FinancialGuaranteeContractsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialGuaranteeContractsMember" xlink:to="ifrs-full_FinancialGuaranteeContractsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialGuaranteeContractsMember_lbl" xml:lang="en-US">Financial guarantee contracts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialGuaranteeContractsMember_lbl" xml:lang="en-US">Financial guarantee contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl" xml:lang="en-US">Types of share-based payment arrangements [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_lbl" xml:lang="en-US">Types of share-based payment arrangements [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeprecatedSharebasedPaymentArrangementsMember" xlink:label="ec_DeprecatedSharebasedPaymentArrangementsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeprecatedSharebasedPaymentArrangementsMember" xlink:to="ec_DeprecatedSharebasedPaymentArrangementsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeprecatedSharebasedPaymentArrangementsMember_lbl" xml:lang="en-US">Deprecated Share based Payment Arrangements [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DeprecatedSharebasedPaymentArrangementsMember_lbl" xml:lang="en-US">Share-based payment arrangements</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ShareBasedPaymentArrangementsInSecondRoundMember" xlink:label="ec_ShareBasedPaymentArrangementsInSecondRoundMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ShareBasedPaymentArrangementsInSecondRoundMember" xlink:to="ec_ShareBasedPaymentArrangementsInSecondRoundMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ShareBasedPaymentArrangementsInSecondRoundMember_lbl" xml:lang="en-US">This member stands for surplus over nominal value arising from the sale of shares awarded in the second round.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ShareBasedPaymentArrangementsInSecondRoundMember_lbl" xml:lang="en-US">Surplus over nominal value arising from the sale of shares awarded in the second round</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalCommitments" xlink:label="ifrs-full_CapitalCommitments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CapitalCommitments" xlink:to="ifrs-full_CapitalCommitments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CapitalCommitments_lbl" xml:lang="en-US">Capital commitments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CapitalCommitments_lbl" xml:lang="en-US">Authorized capital</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesAuthorised" xlink:label="ifrs-full_NumberOfSharesAuthorised" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesAuthorised" xlink:to="ifrs-full_NumberOfSharesAuthorised_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesAuthorised_lbl" xml:lang="en-US">Number of shares authorised</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfSharesAuthorised_lbl" xml:lang="en-US">Number of ordinary shares authorised</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:label="ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:to="ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates_lbl" xml:lang="en-US">Number of shares in entity held by entity or by its subsidiaries or associates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates_lbl" xml:lang="en-US">Treasury shares</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TreasuryShares" xlink:label="ifrs-full_TreasuryShares" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TreasuryShares" xlink:to="ifrs-full_TreasuryShares_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TreasuryShares_lbl" xml:lang="en-US">Treasury shares</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TreasuryShares_lbl" xml:lang="en-US">Treasury shares amount</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares" xlink:label="ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares" xlink:to="ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl" xml:lang="en-US">Dilutive effect of all instruments on weighted average number of ordinary shares</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DilutiveEffectOfAllInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl" xml:lang="en-US">Potentially dilutive financial instruments outstanding</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfSharesAvailableForPublicTrade" xlink:label="ec_NumberOfSharesAvailableForPublicTrade" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfSharesAvailableForPublicTrade" xlink:to="ec_NumberOfSharesAvailableForPublicTrade_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">The number of shares which is publicly available to trade in stock exchange.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">Number of shares available for public trade</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfSharesAvailableForPublicTrade_lbl" xml:lang="en-US">Number of shares available for public trade held privately</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfSharesHeldByMajorityShareHolders" xlink:label="ec_NumberOfSharesHeldByMajorityShareHolders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfSharesHeldByMajorityShareHolders" xlink:to="ec_NumberOfSharesHeldByMajorityShareHolders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">The number of shares which are held by majority share holders not available for public trade.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">Number of shares held by majority share holders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfSharesHeldByMajorityShareHolders_lbl" xml:lang="en-US">Number of shares held by majority share holders</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdditionalPaidInCapitalReceivables" xlink:label="ec_AdditionalPaidInCapitalReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdditionalPaidInCapitalReceivables" xlink:to="ec_AdditionalPaidInCapitalReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdditionalPaidInCapitalReceivables_lbl" xml:lang="en-US">The amount of additional capital receivable.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdditionalPaidInCapitalReceivables_lbl" xml:lang="en-US">Additional Paid in Capital Receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AdditionalPaidInCapitalReceivables_lbl" xml:lang="en-US">Additional paid in capital receivable</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent" xlink:to="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_lbl" xml:lang="en-US">Dividends recognised as distributions to owners of parent</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_lbl" xml:lang="en-US">Dividends distributed</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare" xlink:label="ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare" xlink:to="ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_lbl" xml:lang="en-US">Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_lbl" xml:lang="en-US">Dividend paid by share corresponds, per share</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfDividendInstallmentsMinorityShareholders" xlink:label="ec_NumberOfDividendInstallmentsMinorityShareholders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfDividendInstallmentsMinorityShareholders" xlink:to="ec_NumberOfDividendInstallmentsMinorityShareholders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfDividendInstallmentsMinorityShareholders_lbl" xml:lang="en-US">The number of dividend installments to be paid to minority shareholders.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfDividendInstallmentsMinorityShareholders_lbl" xml:lang="en-US">Number of dividend installments, minority shareholders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfDividendInstallmentsMinorityShareholders_lbl" xml:lang="en-US">Number of equal dividend installments to minority shareholders</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfDividendInstallmentsMajorityShareholders" xlink:label="ec_NumberOfDividendInstallmentsMajorityShareholders" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfDividendInstallmentsMajorityShareholders" xlink:to="ec_NumberOfDividendInstallmentsMajorityShareholders_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfDividendInstallmentsMajorityShareholders_lbl" xml:lang="en-US">The number of dividend installments to be paid to majority shareholders.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfDividendInstallmentsMajorityShareholders_lbl" xml:lang="en-US">Number of dividend installments, majority shareholders</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfDividendInstallmentsMajorityShareholders_lbl" xml:lang="en-US">Number of dividend installments to majority shareholders</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProfitDistributionProjectReserve" xlink:label="ec_ProfitDistributionProjectReserve" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProfitDistributionProjectReserve" xlink:to="ec_ProfitDistributionProjectReserve_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProfitDistributionProjectReserve_lbl" xml:lang="en-US">The amount reserve established to support the financial sustainability of the Company and flexibility in the development of your strategy.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProfitDistributionProjectReserve_lbl" xml:lang="en-US">Profit Distribution Project Reserve</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProfitDistributionProjectReserve_lbl" xml:lang="en-US">Profit distribution project reserve</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:to="ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_lbl" xml:lang="en-US">Dividends recognised as distributions to owners per share</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:label="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:to="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Dividends paid to equity holders of parent, classified as financing activities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Dividends paid to equity holders of parent, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfSalesRevenueAbstract" xlink:label="ec_DisclosureOfSalesRevenueAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfSalesRevenueAbstract" xlink:to="ec_DisclosureOfSalesRevenueAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfSalesRevenueAbstract_lbl" xml:lang="en-US">Disclosure of Sales revenue [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutSalesRevenueTable" xlink:label="ec_DisclosureOfDetailedInformationAboutSalesRevenueTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutSalesRevenueTable" xlink:to="ec_DisclosureOfDetailedInformationAboutSalesRevenueTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutSalesRevenueTable_lbl" xml:lang="en-US">Disclosure of detailed information about sales revenue [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesAxis" xlink:label="ifrs-full_ProductsAndServicesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesAxis_lbl" xml:lang="en-US">Products and services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesDomain" xlink:label="ifrs-full_ProductsAndServicesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="ifrs-full_ProductsAndServicesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesDomain_lbl" xml:lang="en-US">Products and services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MeddistillatesMember" xlink:label="ec_MeddistillatesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MeddistillatesMember" xlink:to="ec_MeddistillatesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MeddistillatesMember_lbl" xml:lang="en-US">Mid-distillates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_MeddistillatesMember_lbl" xml:lang="en-US">Mid-distillates</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasolinesYTurboFuelsMember" xlink:label="ec_GasolinesYTurboFuelsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasolinesYTurboFuelsMember" xlink:to="ec_GasolinesYTurboFuelsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasolinesYTurboFuelsMember_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasolinesYTurboFuelsMember_lbl" xml:lang="en-US">Gasoline and turbo fuels [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasolinesYTurboFuelsMember_lbl" xml:lang="en-US">Gasoline and turbo fuels</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NaturalGassMember" xlink:label="ec_NaturalGassMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NaturalGassMember" xlink:to="ec_NaturalGassMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NaturalGassMember_lbl" xml:lang="en-US">This member stands for natural gas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NaturalGassMember_lbl" xml:lang="en-US">Natural gas</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NaturalGassMember_lbl" xml:lang="en-US">Natural gas</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NaturalGassMember_lbl" xml:lang="en-US">Natural gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ServicesMember" xlink:label="ec_ServicesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ServicesMember" xlink:to="ec_ServicesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ServicesMember_lbl" xml:lang="en-US">Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ServicesMember_lbl" xml:lang="en-US">Services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnergyPowerTransmissionMember" xlink:label="ec_EnergyPowerTransmissionMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnergyPowerTransmissionMember" xlink:to="ec_EnergyPowerTransmissionMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EnergyPowerTransmissionMember_lbl" xml:lang="en-US">This member stands for energy power transmission services.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnergyPowerTransmissionMember_lbl" xml:lang="en-US">Energy Power Transmission [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EnergyPowerTransmissionMember_lbl" xml:lang="en-US">Energy transmission</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_EnergyPowerTransmissionMember_lbl" xml:lang="en-US">Energy transmission services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FuelGasServicesMember" xlink:label="ec_FuelGasServicesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FuelGasServicesMember" xlink:to="ec_FuelGasServicesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FuelGasServicesMember_lbl" xml:lang="en-US">Fuel Gas Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FuelGasServicesMember_lbl" xml:lang="en-US">Fuel gas Service</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AsphaltsMember" xlink:label="ec_AsphaltsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AsphaltsMember" xlink:to="ec_AsphaltsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AsphaltsMember_lbl" xml:lang="en-US">Asphalts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AsphaltsMember_lbl" xml:lang="en-US">Asphalts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PlasticAndRubberMember" xlink:label="ec_PlasticAndRubberMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PlasticAndRubberMember" xlink:to="ec_PlasticAndRubberMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PlasticAndRubberMember_lbl" xml:lang="en-US">Plastic and rubber</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PlasticAndRubberMember_lbl" xml:lang="en-US">Plastic and rubber</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LpgAndPropaneMember" xlink:label="ec_LpgAndPropaneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LpgAndPropaneMember" xlink:to="ec_LpgAndPropaneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LpgAndPropaneMember_lbl" xml:lang="en-US">L.P.G. and propane</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LpgAndPropaneMember_lbl" xml:lang="en-US">LPG and propane</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RoadsAndConstructionServicesMember" xlink:label="ec_RoadsAndConstructionServicesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RoadsAndConstructionServicesMember" xlink:to="ec_RoadsAndConstructionServicesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RoadsAndConstructionServicesMember_lbl" xml:lang="en-US">Roads and construction Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RoadsAndConstructionServicesMember_lbl" xml:lang="en-US">Roads and construction service</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RoadsAndConstructionServicesMember_lbl" xml:lang="en-US">Roads and construction services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PolyethyleneMember" xlink:label="ec_PolyethyleneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PolyethyleneMember" xlink:to="ec_PolyethyleneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PolyethyleneMember_lbl" xml:lang="en-US">Polyethylene</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PolyethyleneMember_lbl" xml:lang="en-US">Polyethylene</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AromaticsMember" xlink:label="ec_AromaticsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AromaticsMember" xlink:to="ec_AromaticsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AromaticsMember_lbl" xml:lang="en-US">Aromatics</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AromaticsMember_lbl" xml:lang="en-US">Aromatics</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FuelOilMember" xlink:label="ec_FuelOilMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FuelOilMember" xlink:to="ec_FuelOilMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FuelOilMember_lbl" xml:lang="en-US">Fuel oil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FuelOilMember_lbl" xml:lang="en-US">Fuel oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrudeMember" xlink:label="ec_CrudeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrudeMember" xlink:to="ec_CrudeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CrudeMember_lbl" xml:lang="en-US">This member stands for crude oil.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrudeMember_lbl" xml:lang="en-US">Crude oil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrudeMember_lbl" xml:lang="en-US">Crude oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherProductsMember" xlink:label="ec_OtherProductsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherProductsMember" xlink:to="ec_OtherProductsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherProductsMember_lbl" xml:lang="en-US">Other products</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherProductsMember_lbl" xml:lang="en-US">Other products</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DieselMember" xlink:label="ec_DieselMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DieselMember" xlink:to="ec_DieselMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DieselMember_lbl" xml:lang="en-US">Diesel</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketsOfCustomersAxis" xlink:label="ifrs-full_MarketsOfCustomersAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MarketsOfCustomersAxis" xlink:to="ifrs-full_MarketsOfCustomersAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MarketsOfCustomersAxis_lbl" xml:lang="en-US">Markets of customers [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketsOfCustomersDomain" xlink:label="ifrs-full_MarketsOfCustomersDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MarketsOfCustomersDomain" xlink:to="ifrs-full_MarketsOfCustomersDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MarketsOfCustomersDomain_lbl" xml:lang="en-US">Markets of customers [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticSalesMember" xlink:label="ec_DomesticSalesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticSalesMember" xlink:to="ec_DomesticSalesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticSalesMember_lbl" xml:lang="en-US">This member stands for domestic sales.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticSalesMember_lbl" xml:lang="en-US">National sales</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticSalesMember_lbl" xml:lang="en-US">Local sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignSalesMember" xlink:label="ec_ForeignSalesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignSalesMember" xlink:to="ec_ForeignSalesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignSalesMember_lbl" xml:lang="en-US">This member stands for foreign sales.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignSalesMember_lbl" xml:lang="en-US">Foreign sales</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignSalesMember_lbl" xml:lang="en-US">Foreign sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems" xlink:to="ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about sales revenue [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutSalesRevenueLineItems_lbl" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RevenuesFromSaleOfGoods" xlink:label="ec_RevenuesFromSaleOfGoods" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RevenuesFromSaleOfGoods" xlink:to="ec_RevenuesFromSaleOfGoods_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RevenuesFromSaleOfGoods_lbl" xml:lang="en-US">The amount of revenue arising from the sale of goods. [Refer: Revenue].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RevenuesFromSaleOfGoods_lbl" xml:lang="en-US">Revenues from sale of goods</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RevenuesFromSaleOfGoods_lbl" xml:lang="en-US">Revenue from sale of goods</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_RevenuesFromSaleOfGoods_lbl" xml:lang="en-US">Sales by product</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TerpelMember" xlink:label="ec_TerpelMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TerpelMember" xlink:to="ec_TerpelMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TerpelMember_lbl" xml:lang="en-US">It represents member of Terpel .</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TerpelMember_lbl" xml:lang="en-US">Terpel [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TerpelMember_lbl" xml:lang="en-US">Terpel</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OthersMember" xlink:label="ec_OthersMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OthersMember" xlink:to="ec_OthersMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OthersMember_lbl" xml:lang="en-US">It represents member of others .</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OthersMember_lbl" xml:lang="en-US">Others [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OthersMember_lbl" xml:lang="en-US">Others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInSalePriceDifferential" xlink:label="ec_IncreaseDecreaseInSalePriceDifferential" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInSalePriceDifferential" xlink:to="ec_IncreaseDecreaseInSalePriceDifferential_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInSalePriceDifferential_lbl" xml:lang="en-US">The price difference arising because of the difference in parity price of that product and regulated price by authority.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInSalePriceDifferential_lbl" xml:lang="en-US">Increase decrease in sale price differential</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInSalePriceDifferential_lbl" xml:lang="en-US">Recognition of price differential</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GainLossFromHedgesForFutureExports" xlink:label="ec_GainLossFromHedgesForFutureExports" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GainLossFromHedgesForFutureExports" xlink:to="ec_GainLossFromHedgesForFutureExports_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GainLossFromHedgesForFutureExports_lbl" xml:lang="en-US">Amount of gain (loss) from hedges for future exports.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GainLossFromHedgesForFutureExports_lbl" xml:lang="en-US">Gain (Loss) From Hedges For Future Exports</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GainLossFromHedgesForFutureExports_lbl" xml:lang="en-US">Result of hedges for future exports</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GainLossFromOperationsWithDerivativeFinancialInstruments" xlink:label="ec_GainLossFromOperationsWithDerivativeFinancialInstruments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GainLossFromOperationsWithDerivativeFinancialInstruments" xlink:to="ec_GainLossFromOperationsWithDerivativeFinancialInstruments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GainLossFromOperationsWithDerivativeFinancialInstruments_lbl" xml:lang="en-US">Amount of gain (loss) from operations with derivative financial instruments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GainLossFromOperationsWithDerivativeFinancialInstruments_lbl" xml:lang="en-US">Gain (Loss) From Operations With Derivative Financial Instruments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GainLossFromOperationsWithDerivativeFinancialInstruments_lbl" xml:lang="en-US">Result from operations with derivative financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfEntitysRevenue" xlink:label="ifrs-full_PercentageOfEntitysRevenue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfEntitysRevenue" xlink:to="ifrs-full_PercentageOfEntitysRevenue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfEntitysRevenue_lbl" xml:lang="en-US">Percentage of entity's revenue</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PercentageOfEntitysRevenue_lbl" xml:lang="en-US">Percentage of entitys revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CN" xlink:label="country_CN" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CN" xlink:to="country_CN_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_CN_lbl" xml:lang="en-US">CHINA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_CN_lbl" xml:lang="en-US">China</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IN" xlink:label="country_IN" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_IN" xlink:to="country_IN_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_IN_lbl" xml:lang="en-US">INDIA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_IN_lbl" xml:lang="en-US">India</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SingaporeAndOtherAsianCountriesMember" xlink:label="ec_SingaporeAndOtherAsianCountriesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SingaporeAndOtherAsianCountriesMember" xlink:to="ec_SingaporeAndOtherAsianCountriesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SingaporeAndOtherAsianCountriesMember_lbl" xml:lang="en-US">Represents the information pertaining to Singapore and other Asian countries.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SingaporeAndOtherAsianCountriesMember_lbl" xml:lang="en-US">Singapore and Other Asian Countries [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SingaporeAndOtherAsianCountriesMember_lbl" xml:lang="en-US">Singapore and other Asian countries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherSouthAmericaCountriesMember" xlink:label="ec_OtherSouthAmericaCountriesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherSouthAmericaCountriesMember" xlink:to="ec_OtherSouthAmericaCountriesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherSouthAmericaCountriesMember_lbl" xml:lang="en-US">Represents the information pertaining to Other South America countries.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherSouthAmericaCountriesMember_lbl" xml:lang="en-US">Other South America countries [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherSouthAmericaCountriesMember_lbl" xml:lang="en-US">Other South America countries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CentralAmericaAndCaribbeanMember" xlink:label="ec_CentralAmericaAndCaribbeanMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CentralAmericaAndCaribbeanMember" xlink:to="ec_CentralAmericaAndCaribbeanMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CentralAmericaAndCaribbeanMember_lbl" xml:lang="en-US">Central America And Caribbean [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CentralAmericaAndCaribbeanMember_lbl" xml:lang="en-US">Central America And the Caribbean</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EuropeMember" xlink:label="srt_EuropeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_EuropeMember" xlink:to="srt_EuropeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_EuropeMember_lbl" xml:lang="en-US">Europe [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_EuropeMember_lbl" xml:lang="en-US">Europe</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConstructionAndImprovementBusinessesRoadsMember" xlink:label="ec_ConstructionAndImprovementBusinessesRoadsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConstructionAndImprovementBusinessesRoadsMember" xlink:to="ec_ConstructionAndImprovementBusinessesRoadsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConstructionAndImprovementBusinessesRoadsMember_lbl" xml:lang="en-US">This member stands for construction and improvement businesses roads.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConstructionAndImprovementBusinessesRoadsMember_lbl" xml:lang="en-US">Construction and Improvement Businesses Roads [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConstructionAndImprovementBusinessesRoadsMember_lbl" xml:lang="en-US">Construction and Improvement Businesses Roads</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnergySolutionsDevelopmentMember" xlink:label="ec_EnergySolutionsDevelopmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnergySolutionsDevelopmentMember" xlink:to="ec_EnergySolutionsDevelopmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EnergySolutionsDevelopmentMember_lbl" xml:lang="en-US">This member stands for energy solutions development.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnergySolutionsDevelopmentMember_lbl" xml:lang="en-US">Energy Solutions Development [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EnergySolutionsDevelopmentMember_lbl" xml:lang="en-US">Energy Solutions Development</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TelecommunicationsBusinessDevelopmentMember" xlink:label="ec_TelecommunicationsBusinessDevelopmentMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TelecommunicationsBusinessDevelopmentMember" xlink:to="ec_TelecommunicationsBusinessDevelopmentMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TelecommunicationsBusinessDevelopmentMember_lbl" xml:lang="en-US">This member stands for telecommunications business development.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TelecommunicationsBusinessDevelopmentMember_lbl" xml:lang="en-US">Telecommunications Business Development [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TelecommunicationsBusinessDevelopmentMember_lbl" xml:lang="en-US">Telecommunications Business Development</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaBrasilAndSubsidiariesMember" xlink:label="ec_IsaBrasilAndSubsidiariesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaBrasilAndSubsidiariesMember" xlink:to="ec_IsaBrasilAndSubsidiariesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaBrasilAndSubsidiariesMember_lbl" xml:lang="en-US">This member stands for ISA Brasil and subsidiaries.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaBrasilAndSubsidiariesMember_lbl" xml:lang="en-US">ISA Brasil and Subsidiaries [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaBrasilAndSubsidiariesMember_lbl" xml:lang="en-US">ISA Brasil and subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaIntervialColombiaMember" xlink:label="ec_IsaIntervialColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaIntervialColombiaMember" xlink:to="ec_IsaIntervialColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaIntervialColombiaMember_lbl" xml:lang="en-US">This member stands for isa intervial colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaIntervialColombiaMember_lbl" xml:lang="en-US">ISA Intervial Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember" xlink:label="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember" xlink:to="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember_lbl" xml:lang="en-US">This member stands for Conexin Kimal Lo Aguirre in Chile and TOCE CEPI energy transmission project.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember_lbl" xml:lang="en-US">Conexin Kimal Lo Aguirre in Chile and TOCE CEPI Energy Transmission Project [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConexinKimalLoAguirreInChileAndToceCepiEnergyTransmissionProjectMember_lbl" xml:lang="en-US">Conexin Kimal Lo Aguirre in Chile and TOCE CEPI Energy Transmission Project</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProjectsAxis" xlink:label="ec_ProjectsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProjectsAxis" xlink:to="ec_ProjectsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProjectsAxis_lbl" xml:lang="en-US">The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProjectsAxis_lbl" xml:lang="en-US">Projects [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProjectsDomain" xlink:label="ec_ProjectsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProjectsDomain" xlink:to="ec_ProjectsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProjectsDomain_lbl" xml:lang="en-US">This member stands for projects.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProjectsDomain_lbl" xml:lang="en-US">Projects [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProjectConexinKimalLagunasMember" xlink:label="ec_ProjectConexinKimalLagunasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProjectConexinKimalLagunasMember" xlink:to="ec_ProjectConexinKimalLagunasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProjectConexinKimalLagunasMember_lbl" xml:lang="en-US">This member stands for Project Conexin Kimal Lagunas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProjectConexinKimalLagunasMember_lbl" xml:lang="en-US">Project Conexin Kimal Lagunas [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProjectConexinKimalLagunasMember_lbl" xml:lang="en-US">Project Conexin Kimal Lagunas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Group1PicoBetaSayaMember" xlink:label="ec_Group1PicoBetaSayaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Group1PicoBetaSayaMember" xlink:to="ec_Group1PicoBetaSayaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Group1PicoBetaSayaMember_lbl" xml:lang="en-US">This member stands for Group 1 Pico-Beta-Saya.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Group1PicoBetaSayaMember_lbl" xml:lang="en-US">Group 1 Pico-Beta-Saya [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Group1PicoBetaSayaMember_lbl" xml:lang="en-US">Group 1 Pico-Beta-Saya</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfProgressObtainedForFunctionalUnit3" xlink:label="ec_PercentageOfProgressObtainedForFunctionalUnit3" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfProgressObtainedForFunctionalUnit3" xlink:to="ec_PercentageOfProgressObtainedForFunctionalUnit3_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfProgressObtainedForFunctionalUnit3_lbl" xml:lang="en-US">The percentage of progress obtained for functional unit 3.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfProgressObtainedForFunctionalUnit3_lbl" xml:lang="en-US">Percentage Of Progress Obtained For Functional Unit 3</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfProgressObtainedForFunctionalUnit3_lbl" xml:lang="en-US">Percentage Of Progress Obtained For Functional Unit 3</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalCommitmentsIncludesIsaCommittedInvestments" xlink:label="ec_CapitalCommitmentsIncludesIsaCommittedInvestments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalCommitmentsIncludesIsaCommittedInvestments" xlink:to="ec_CapitalCommitmentsIncludesIsaCommittedInvestments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalCommitmentsIncludesIsaCommittedInvestments_lbl" xml:lang="en-US">The amount of future capital expenditures of ISA that the entity is committed to make.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalCommitmentsIncludesIsaCommittedInvestments_lbl" xml:lang="en-US">Capital Commitments Includes an ISA Committed Investments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CapitalCommitmentsIncludesIsaCommittedInvestments_lbl" xml:lang="en-US">ISA committed investments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountOfProjectsAwarded" xlink:label="ec_AmountOfProjectsAwarded" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountOfProjectsAwarded" xlink:to="ec_AmountOfProjectsAwarded_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountOfProjectsAwarded_lbl" xml:lang="en-US">The amount of projects awarded.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountOfProjectsAwarded_lbl" xml:lang="en-US">Amount of Projects Awarded</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountOfProjectsAwarded_lbl" xml:lang="en-US">Amount of projects awarded</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfProjectsAwarded" xlink:label="ec_PercentageOfProjectsAwarded" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfProjectsAwarded" xlink:to="ec_PercentageOfProjectsAwarded_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfProjectsAwarded_lbl" xml:lang="en-US">The percentage of projects awarded.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfProjectsAwarded_lbl" xml:lang="en-US">Percentage of Projects Awarded</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfProjectsAwarded_lbl" xml:lang="en-US">Percentage of projects awarded</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountOfReinforcementAndImprovementsApproved" xlink:label="ec_AmountOfReinforcementAndImprovementsApproved" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountOfReinforcementAndImprovementsApproved" xlink:to="ec_AmountOfReinforcementAndImprovementsApproved_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountOfReinforcementAndImprovementsApproved_lbl" xml:lang="en-US">The approved amount for reinforcement and improvements.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountOfReinforcementAndImprovementsApproved_lbl" xml:lang="en-US">Amount of Reinforcement and Improvements Approved</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountOfReinforcementAndImprovementsApproved_lbl" xml:lang="en-US">Amount of reinforcement and improvements approved</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountOfCommittedInvestments" xlink:label="ec_AmountOfCommittedInvestments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountOfCommittedInvestments" xlink:to="ec_AmountOfCommittedInvestments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountOfCommittedInvestments_lbl" xml:lang="en-US">The amount of committed investments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountOfCommittedInvestments_lbl" xml:lang="en-US">Amount of Committed Investments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountOfCommittedInvestments_lbl" xml:lang="en-US">Committed Investments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmountOfCommittedInvestmentsInProjects" xlink:label="ec_AmountOfCommittedInvestmentsInProjects" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmountOfCommittedInvestmentsInProjects" xlink:to="ec_AmountOfCommittedInvestmentsInProjects_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmountOfCommittedInvestmentsInProjects_lbl" xml:lang="en-US">The amount of committed investments in projects.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmountOfCommittedInvestmentsInProjects_lbl" xml:lang="en-US">Amount Of Committed Investments In Projects</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmountOfCommittedInvestmentsInProjects_lbl" xml:lang="en-US">Committed investments in projects</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan" xlink:label="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan" xlink:to="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan_lbl" xml:lang="en-US">The amount of projection of investments related to maintenance and optimization plan.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan_lbl" xml:lang="en-US">Projection of Investments Related to Maintenance and Optimization Plan</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProjectionOfInvestmentsRelatedToMaintenanceAndOptimizationPlan_lbl" xml:lang="en-US">Maintenance and optimization plan</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation" xlink:label="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation" xlink:to="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation_lbl" xml:lang="en-US">The amount of projection of investments related to technological developments and headquarters conservation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation_lbl" xml:lang="en-US">Projection of Investments Related to Technological Developments and Headquarters Conservation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProjectionOfInvestmentsRelatedToTechnologicalDevelopmentsAndHeadquartersConservation_lbl" xml:lang="en-US">Technological developments and headquarters conservation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTable" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTable" xlink:to="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsTable_lbl" xml:lang="en-US">Disclosure of detailed information about cost of sales of non current assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TypeOfCostAxis" xlink:label="ec_TypeOfCostAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TypeOfCostAxis" xlink:to="ec_TypeOfCostAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TypeOfCostAxis_lbl" xml:lang="en-US">Type Of Cost [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TypeOfCostDomain" xlink:label="ec_TypeOfCostDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TypeOfCostDomain" xlink:to="ec_TypeOfCostDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TypeOfCostDomain_lbl" xml:lang="en-US">Type Of Cost [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_VariableCostsMember" xlink:label="ec_VariableCostsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_VariableCostsMember" xlink:to="ec_VariableCostsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_VariableCostsMember_lbl" xml:lang="en-US">This member stands for variable costs.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_VariableCostsMember_lbl" xml:lang="en-US">Variable Costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FixedCostsMember" xlink:label="ec_FixedCostsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FixedCostsMember" xlink:to="ec_FixedCostsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FixedCostsMember_lbl" xml:lang="en-US">This member stands for fixed costs.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FixedCostsMember_lbl" xml:lang="en-US">Fixed costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems" xlink:to="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about cost of sales of non current assets [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutCostOfSalesOfNonCurrentAssetsLineItems_lbl" xml:lang="en-US">Cost of variables and fixed</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FuelExpense" xlink:label="ifrs-full_FuelExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FuelExpense" xlink:to="ifrs-full_FuelExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FuelExpense_lbl" xml:lang="en-US">Fuel expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FuelExpense_lbl" xml:lang="en-US">Imported products</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DepreciationDepletionAndAmortizationExpense" xlink:label="ec_DepreciationDepletionAndAmortizationExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DepreciationDepletionAndAmortizationExpense" xlink:to="ec_DepreciationDepletionAndAmortizationExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DepreciationDepletionAndAmortizationExpense_lbl" xml:lang="en-US">The amount of depreciation, depletion and amortisation expense. Depreciation, depletion and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DepreciationDepletionAndAmortizationExpense_lbl" xml:lang="en-US">Depreciation, Depletion And Amortization Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DepreciationDepletionAndAmortizationExpense_lbl" xml:lang="en-US">Depreciation, depletion, and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PurchasesOfCrude" xlink:label="ec_PurchasesOfCrude" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PurchasesOfCrude" xlink:to="ec_PurchasesOfCrude_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PurchasesOfCrude_lbl" xml:lang="en-US">The amount of expenses incurred for purchase of crude.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PurchasesOfCrude_lbl" xml:lang="en-US">Purchases Of Crude</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PurchasesOfCrude_lbl" xml:lang="en-US">Purchases Of Crude</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RoyaltyExpense" xlink:label="ifrs-full_RoyaltyExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RoyaltyExpense" xlink:to="ifrs-full_RoyaltyExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RoyaltyExpense_lbl" xml:lang="en-US">Royalty Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RoyaltyExpense_lbl" xml:lang="en-US">Purchases of hydrocarbons - ANH</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EnergyExpense" xlink:label="ifrs-full_EnergyExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EnergyExpense" xlink:to="ifrs-full_EnergyExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EnergyExpense_lbl" xml:lang="en-US">Energy expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_EnergyExpense_lbl" xml:lang="en-US">Electric Energy</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProcessingMaterials" xlink:label="ec_ProcessingMaterials" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProcessingMaterials" xlink:to="ec_ProcessingMaterials_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProcessingMaterials_lbl" xml:lang="en-US">The amount of expenses relating to processing of materials.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProcessingMaterials_lbl" xml:lang="en-US">Processing materials</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ProcessingMaterials_lbl" xml:lang="en-US">Processing materials</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransportationExpense" xlink:label="ifrs-full_TransportationExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TransportationExpense" xlink:to="ifrs-full_TransportationExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TransportationExpense_lbl" xml:lang="en-US">Transportation expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TransportationExpense_lbl" xml:lang="en-US">Hydrocarbon transportation services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PurchasesOfOtherProductsAndGas" xlink:label="ec_PurchasesOfOtherProductsAndGas" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PurchasesOfOtherProductsAndGas" xlink:to="ec_PurchasesOfOtherProductsAndGas_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PurchasesOfOtherProductsAndGas_lbl" xml:lang="en-US">The amount of expenses incurred for purchase of other products and gas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PurchasesOfOtherProductsAndGas_lbl" xml:lang="en-US">Purchases of other products and gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasRoyaltiesInCash" xlink:label="ec_GasRoyaltiesInCash" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasRoyaltiesInCash" xlink:to="ec_GasRoyaltiesInCash_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasRoyaltiesInCash_lbl" xml:lang="en-US">The amount from the Gas royalties in cash.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasRoyaltiesInCash_lbl" xml:lang="en-US">Gas Royalties In Cash</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasRoyaltiesInCash_lbl" xml:lang="en-US">Gas royalties in cash</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ServicesExpense" xlink:label="ifrs-full_ServicesExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ServicesExpense" xlink:to="ifrs-full_ServicesExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ServicesExpense_lbl" xml:lang="en-US">Services expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ServicesExpense_lbl" xml:lang="en-US">Services contracted</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TaxesAndContributions" xlink:label="ec_TaxesAndContributions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TaxesAndContributions" xlink:to="ec_TaxesAndContributions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TaxesAndContributions_lbl" xml:lang="en-US">The amount of tax contributions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TaxesAndContributions_lbl" xml:lang="en-US">Taxes And Contributions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TaxesAndContributions_lbl" xml:lang="en-US">Taxes and contributions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InventoryAllocationExpenseIncome" xlink:label="ec_InventoryAllocationExpenseIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InventoryAllocationExpenseIncome" xlink:to="ec_InventoryAllocationExpenseIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InventoryAllocationExpenseIncome_lbl" xml:lang="en-US">The amount of expense or income arising through allocation of inventory.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InventoryAllocationExpenseIncome_lbl" xml:lang="en-US">Inventory Allocation Expense Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InventoryAllocationExpenseIncome_lbl" xml:lang="en-US">Others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_VariableCostsGross" xlink:label="ec_VariableCostsGross" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_VariableCostsGross" xlink:to="ec_VariableCostsGross_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_VariableCostsGross_lbl" xml:lang="en-US">The amount of gross variable cost of sale.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_VariableCostsGross_lbl" xml:lang="en-US">Variable Costs Gross</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_VariableCostsGross_lbl" xml:lang="en-US">Total Costs Variables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepairsAndMaintenanceExpense" xlink:label="ifrs-full_RepairsAndMaintenanceExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RepairsAndMaintenanceExpense" xlink:to="ifrs-full_RepairsAndMaintenanceExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RepairsAndMaintenanceExpense_lbl" xml:lang="en-US">Repairs and maintenance expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RepairsAndMaintenanceExpense_lbl" xml:lang="en-US">Maintenance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WagesAndSalaries" xlink:label="ifrs-full_WagesAndSalaries" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WagesAndSalaries" xlink:to="ifrs-full_WagesAndSalaries_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WagesAndSalaries_lbl" xml:lang="en-US">Wages and salaries</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WagesAndSalaries_lbl" xml:lang="en-US">Labor costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_WagesAndSalaries_lbl" xml:lang="en-US">Labor expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConstructionCosts" xlink:label="ec_ConstructionCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConstructionCosts" xlink:to="ec_ConstructionCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConstructionCosts_lbl" xml:lang="en-US">The amount of costs associated with construction.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConstructionCosts_lbl" xml:lang="en-US">Construction Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConstructionCosts_lbl" xml:lang="en-US">Construction Costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ServicesContractedInAssociations" xlink:label="ec_ServicesContractedInAssociations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ServicesContractedInAssociations" xlink:to="ec_ServicesContractedInAssociations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ServicesContractedInAssociations_lbl" xml:lang="en-US">The amount of expense arising from services contracted in association.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ServicesContractedInAssociations_lbl" xml:lang="en-US">Services contracted in associations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ServicesContractedInAssociations_lbl" xml:lang="en-US">Services contracted in association</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RawMaterialsAndConsumablesUsed" xlink:label="ifrs-full_RawMaterialsAndConsumablesUsed" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RawMaterialsAndConsumablesUsed" xlink:to="ifrs-full_RawMaterialsAndConsumablesUsed_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RawMaterialsAndConsumablesUsed_lbl" xml:lang="en-US">Raw materials and consumables used</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RawMaterialsAndConsumablesUsed_lbl" xml:lang="en-US">Materials and operating supplies</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:label="ifrs-full_SellingGeneralAndAdministrativeExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:to="ifrs-full_SellingGeneralAndAdministrativeExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SellingGeneralAndAdministrativeExpense_lbl" xml:lang="en-US">Selling, General and Administrative Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_SellingGeneralAndAdministrativeExpense_lbl" xml:lang="en-US">General costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FixedCostsOfSaleGross" xlink:label="ec_FixedCostsOfSaleGross" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FixedCostsOfSaleGross" xlink:to="ec_FixedCostsOfSaleGross_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FixedCostsOfSaleGross_lbl" xml:lang="en-US">The amount of fixed cost of sale gross.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FixedCostsOfSaleGross_lbl" xml:lang="en-US">Fixed Costs of Sale Gross</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FixedCostsOfSaleGross_lbl" xml:lang="en-US">Total Fixed cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseTable" xlink:label="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseTable" xlink:to="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseTable_lbl" xml:lang="en-US">Disclosure of detailed information about general and administration expense [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis" xlink:to="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis_lbl" xml:lang="en-US">Attribution of expenses by nature to their function [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain" xlink:to="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AttributionOfExpensesByNatureToTheirFunctionDomain_lbl" xml:lang="en-US">Attribution of expenses by nature to their function [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdministrationExpensesMember" xlink:label="ec_AdministrationExpensesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdministrationExpensesMember" xlink:to="ec_AdministrationExpensesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdministrationExpensesMember_lbl" xml:lang="en-US">This member stands for administration expenses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdministrationExpensesMember_lbl" xml:lang="en-US">Administrative expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OperationAndProjectExpensesMember" xlink:label="ec_OperationAndProjectExpensesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OperationAndProjectExpensesMember" xlink:to="ec_OperationAndProjectExpensesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OperationAndProjectExpensesMember_lbl" xml:lang="en-US">This member stands for operation and project expenses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OperationAndProjectExpensesMember_lbl" xml:lang="en-US">Operations and project expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems" xlink:label="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems" xlink:to="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about general and administration expense [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DisclosureOfDetailedInformationAboutGeneralAndAdministrationExpenseLineItems_lbl" xml:lang="en-US">Administrative, operation and project expenses:</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GeneralExpensesAndOther" xlink:label="ec_GeneralExpensesAndOther" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GeneralExpensesAndOther" xlink:to="ec_GeneralExpensesAndOther_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GeneralExpensesAndOther_lbl" xml:lang="en-US">The amount of expenses that entity classify as general and other.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GeneralExpensesAndOther_lbl" xml:lang="en-US">General Expenses And Other</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_GeneralExpensesAndOther_lbl" xml:lang="en-US">General expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxExpenseOtherThanIncomeTaxExpense" xlink:label="ifrs-full_TaxExpenseOtherThanIncomeTaxExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxExpenseOtherThanIncomeTaxExpense" xlink:to="ifrs-full_TaxExpenseOtherThanIncomeTaxExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxExpenseOtherThanIncomeTaxExpense_lbl" xml:lang="en-US">Tax expense other than income tax expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TaxExpenseOtherThanIncomeTaxExpense_lbl" xml:lang="en-US">Taxes other than taxes on income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionExpense" xlink:label="ifrs-full_FeeAndCommissionExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FeeAndCommissionExpense" xlink:to="ifrs-full_FeeAndCommissionExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FeeAndCommissionExpense_lbl" xml:lang="en-US">Fee and commission expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FeeAndCommissionExpense_lbl" xml:lang="en-US">Commissions, fees, freights and services</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources" xlink:label="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources" xlink:to="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Expense arising from exploration for and evaluation of mineral resources</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Exploration expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_lbl" xml:lang="en-US">Exploration costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FeeForRegulatoryEntities" xlink:label="ec_FeeForRegulatoryEntities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FeeForRegulatoryEntities" xlink:to="ec_FeeForRegulatoryEntities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FeeForRegulatoryEntities_lbl" xml:lang="en-US">The amount of regulatory fees incurred by entity to meet regulatory obligations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FeeForRegulatoryEntities_lbl" xml:lang="en-US">Fee for regulatory entities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FeeForRegulatoryEntities_lbl" xml:lang="en-US">Fee for regulatory entities</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousOtherOperatingExpense" xlink:to="ifrs-full_MiscellaneousOtherOperatingExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense_lbl" xml:lang="en-US">Miscellaneous other operating expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense_lbl" xml:lang="en-US">Other</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable_lbl" xml:lang="en-US">Disclosure of associates [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_lbl" xml:lang="en-US">Disclosure Of Significant Investments In Associates [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnLitigationSettlements" xlink:label="ifrs-full_GainsLossesOnLitigationSettlements" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnLitigationSettlements" xlink:to="ifrs-full_GainsLossesOnLitigationSettlements_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnLitigationSettlements_lbl" xml:lang="en-US">Gains (losses) on litigation settlements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainsLossesOnLitigationSettlements_lbl" xml:lang="en-US">Expense for legal provisions</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment" xlink:label="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment" xlink:to="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US">Gains (losses) on disposals of property, plant and equipment</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US">(Loss) gain on sale of assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables_lbl" xml:lang="en-US">Impairment loss recognised in profit or loss, trade receivables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossTradeReceivables_lbl" xml:lang="en-US">Impairment loss of current assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GainOnBusinessCombinationAndReversalOfOilFields" xlink:label="ec_GainOnBusinessCombinationAndReversalOfOilFields" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GainOnBusinessCombinationAndReversalOfOilFields" xlink:to="ec_GainOnBusinessCombinationAndReversalOfOilFields_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GainOnBusinessCombinationAndReversalOfOilFields_lbl" xml:lang="en-US">Amount of gain on business combination and reversal of oil fields.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GainOnBusinessCombinationAndReversalOfOilFields_lbl" xml:lang="en-US">Gain On Business Combination And Reversal Of Oil Fields</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GainOnBusinessCombinationAndReversalOfOilFields_lbl" xml:lang="en-US">Profit in business combinations and field reversal</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherIncome" xlink:label="ifrs-full_OtherIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherIncome" xlink:to="ifrs-full_OtherIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherIncome_lbl" xml:lang="en-US">Other income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherIncome_lbl" xml:lang="en-US">Other income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfReceivablesImpaired" xlink:label="ec_PercentageOfReceivablesImpaired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfReceivablesImpaired" xlink:to="ec_PercentageOfReceivablesImpaired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfReceivablesImpaired_lbl" xml:lang="en-US">The percentage of receivables impaired during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfReceivablesImpaired_lbl" xml:lang="en-US">Percentage of Receivables Impaired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfReceivablesImpaired_lbl" xml:lang="en-US">Percentage of Receivables Impaired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage" xlink:to="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" xml:lang="en-US">Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" xml:lang="en-US">IFRS Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IfrsBusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" xml:lang="en-US">Percentage of equity in the acquiree held by the acquirer</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceIncomeAbstract" xlink:label="ec_FinanceIncomeAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceIncomeAbstract" xlink:to="ec_FinanceIncomeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceIncomeAbstract_lbl" xml:lang="en-US">Finance income [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FinanceIncomeAbstract_lbl" xml:lang="en-US">Finance income</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromInterest" xlink:label="ifrs-full_RevenueFromInterest" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueFromInterest" xlink:to="ifrs-full_RevenueFromInterest_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueFromInterest_lbl" xml:lang="en-US">Interest income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RevenueFromInterest_lbl" xml:lang="en-US">Yields and interests</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue" xlink:label="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue" xlink:to="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">The amount of finance income from financial assets measured at fair value.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">Finance Income from Financial Assets Measured at Fair Value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FinanceIncomeFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">Financial assets measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:to="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl" xml:lang="en-US">Gains (losses) on change in fair value of derivatives</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl" xml:lang="en-US">Gain on remeasurement of derivatives</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceIncome" xlink:label="ifrs-full_OtherFinanceIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinanceIncome" xlink:to="ifrs-full_OtherFinanceIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinanceIncome_lbl" xml:lang="en-US">Other finance income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherFinanceIncome_lbl" xml:lang="en-US">Other financial incomes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceCostsAbstract" xlink:label="ec_FinanceCostsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceCostsAbstract" xlink:to="ec_FinanceCostsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceCostsAbstract_lbl" xml:lang="en-US">No definition available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceCostsAbstract_lbl" xml:lang="en-US">Finance costs [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FinanceCostsAbstract_lbl" xml:lang="en-US">Financial expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings" xlink:label="ifrs-full_InterestExpenseOnBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnBorrowings" xlink:to="ifrs-full_InterestExpenseOnBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnBorrowings_lbl" xml:lang="en-US">Interest expense on borrowings</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_InterestExpenseOnBorrowings_lbl" xml:lang="en-US">Interest</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:to="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl" xml:lang="en-US">Interest expense on other financial liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl" xml:lang="en-US">Financial cost of other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue" xlink:label="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue" xlink:to="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">The amount of finance expenses from financial assets measured at fair value.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">Finance expenses from Financial Assets Measured at Fair Value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_FinanceExpensesFromFinancialAssetsMeasuredAtFairValue_lbl" xml:lang="en-US">Financial expenses measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceCost" xlink:label="ifrs-full_OtherFinanceCost" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinanceCost" xlink:to="ifrs-full_OtherFinanceCost_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinanceCost_lbl" xml:lang="en-US">Other finance cost</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_OtherFinanceCost_lbl" xml:lang="en-US">Other financial expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestCostsCapitalised" xlink:label="ifrs-full_InterestCostsCapitalised" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestCostsCapitalised" xlink:to="ifrs-full_InterestCostsCapitalised_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestCostsCapitalised_lbl" xml:lang="en-US">Interest costs capitalised</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InterestCostsCapitalised_lbl" xml:lang="en-US">Interest capitalized in natural resources and property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeReceivablesAndPayables" xlink:label="ec_TradeReceivablesAndPayables" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeReceivablesAndPayables" xlink:to="ec_TradeReceivablesAndPayables_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeReceivablesAndPayables_lbl" xml:lang="en-US">The amount of trade receivables and payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeReceivablesAndPayables_lbl" xml:lang="en-US">Trade Receivables And Payables</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeReceivablesAndPayables_lbl" xml:lang="en-US">Trade receivables and payables, net</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansAndBorrowings" xlink:label="ec_LoansAndBorrowings" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansAndBorrowings" xlink:to="ec_LoansAndBorrowings_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansAndBorrowings_lbl" xml:lang="en-US">The amount of outstanding funds (loan and borrowings) that the entity is obligated to repay.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansAndBorrowings_lbl" xml:lang="en-US">Loans and borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_LoansAndBorrowings_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherAssetsLiabilities" xlink:label="ec_OtherAssetsLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherAssetsLiabilities" xlink:to="ec_OtherAssetsLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherAssetsLiabilities_lbl" xml:lang="en-US">Other Assets and Liabilities, net</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherAssetsLiabilities_lbl" xml:lang="en-US">Other Assets Liabilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherAssetsLiabilities_lbl" xml:lang="en-US">Other assets and liabilities, net</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:label="ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:to="ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_lbl" xml:lang="en-US">Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_lbl" xml:lang="en-US">Net liability position</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" xlink:label="ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" xlink:to="ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" xml:lang="en-US">Amount of change in income before income taxes due to 1% change in exchange rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OnePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" xml:lang="en-US">One Percent variations in exchange rate, Effect on income before income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome" xlink:label="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome" xlink:to="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">Amount of change in comprehensive income due to 1% change in exchange rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">One Percent variations in exchange rate, other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OnePercentVariationsInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">One percent variations in exchange rate, effect on other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" xlink:label="ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes" xlink:to="ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" xml:lang="en-US">Amount of change in income before income taxes due to 5% change in exchange rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FivePercentVariationsInExchangeRateEffectOnIncomeBeforeIncomeTaxes_lbl" xml:lang="en-US">Five Percent variations in exchange rate, Effect on income before income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome" xlink:label="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome" xlink:to="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">Amount of change in comprehensive income due to 5% change in exchange rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">Five Percent variation in exchange rate, other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FivePercentVariationInExchangeRateOtherComprehensiveIncome_lbl" xml:lang="en-US">Five Percent variations in exchange rate, effect on other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent" xlink:to="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent_lbl" xml:lang="en-US">The percentage of maximum investment in terms of cash provided by entity in portfolio, non current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent_lbl" xml:lang="en-US">Maximum percentage of cash investment held in portfolio, non current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioNonCurrent_lbl" xml:lang="en-US">Scenario / variation in the exchange rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent" xlink:to="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent_lbl" xml:lang="en-US">The percentage of maximum investment in terms of cash provided by entity in portfolio, current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent_lbl" xml:lang="en-US">Maximum percentage of cash investment held in portfolio, current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolioCurrent_lbl" xml:lang="en-US">variation in the exchange rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentAssets" xlink:label="ifrs-full_HedgingInstrumentAssets" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_HedgingInstrumentAssets" xlink:to="ifrs-full_HedgingInstrumentAssets_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_HedgingInstrumentAssets_lbl" xml:lang="en-US">Hedging instrument</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_HedgingInstrumentAssets_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_HedgingInstrumentAssets_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_HedgingInstrumentAssets_lbl" xml:lang="en-US">Hedging instrument at the end of the period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_HedgingInstrumentAssets_lbl" xml:lang="en-US">Hedging instrument assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReassignmentOfHedgingInstruments" xlink:label="ec_ReassignmentOfHedgingInstruments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReassignmentOfHedgingInstruments" xlink:to="ec_ReassignmentOfHedgingInstruments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReassignmentOfHedgingInstruments_lbl" xml:lang="en-US">Represents the amount of reassignment to hedge instruments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReassignmentOfHedgingInstruments_lbl" xml:lang="en-US">Reassignment Of Hedging Instruments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ReassignmentOfHedgingInstruments_lbl" xml:lang="en-US">Reassignment of hedging instruments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HedgingInstrumentsRealizedExports" xlink:label="ec_HedgingInstrumentsRealizedExports" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HedgingInstrumentsRealizedExports" xlink:to="ec_HedgingInstrumentsRealizedExports_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HedgingInstrumentsRealizedExports_lbl" xml:lang="en-US">Represents the amount of realized exports on hedge instruments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HedgingInstrumentsRealizedExports_lbl" xml:lang="en-US">Hedging Instruments, Realized Exports</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_HedgingInstrumentsRealizedExports_lbl" xml:lang="en-US">Realization of exports</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DesignationOfNewHedgeItems" xlink:label="ec_DesignationOfNewHedgeItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DesignationOfNewHedgeItems" xlink:to="ec_DesignationOfNewHedgeItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DesignationOfNewHedgeItems_lbl" xml:lang="en-US">Amount of new hedge items designated.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DesignationOfNewHedgeItems_lbl" xml:lang="en-US">Designation of New Hedge Items</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DesignationOfNewHedgeItems_lbl" xml:lang="en-US">Designation of new hedge items</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MovementInOtherComprehensiveIncome" xlink:label="ec_MovementInOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MovementInOtherComprehensiveIncome" xlink:to="ec_MovementInOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MovementInOtherComprehensiveIncome_lbl" xml:lang="en-US">The represents the amount of movement in the other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MovementInOtherComprehensiveIncome_lbl" xml:lang="en-US">Movement in the other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_MovementInOtherComprehensiveIncome_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_MovementInOtherComprehensiveIncome_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_lbl" xml:lang="en-US">Other comprehensive income, net of tax, exchange differences on translation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_lbl" xml:lang="en-US">Exchange difference</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:to="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US">Reclassification adjustments on cash flow hedges, net of tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US">After taxes</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US">Realized exports (Note 25)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:to="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Gain (loss) on hedge ineffectiveness recognised in profit or loss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Ineffectiveness reclassified to profit and loss</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome" xlink:label="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome" xlink:to="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">The amount of deferred income tax relating to amounts recognised in other comprehensive income.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Deferred Income Tax Relating To Components Of Other Comprehensive Income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DeferredIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome_lbl" xml:lang="en-US">Deferred tax</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">2030</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">2028</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:label="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:to="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember_lbl" xml:lang="en-US">Later Than Five Years And Not Later Than Six Years [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember_lbl" xml:lang="en-US">2026..</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_LaterThanFiveYearsAndNotLaterThanSixYearsMember_lbl" xml:lang="en-US">2031</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember" xlink:label="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember" xlink:to="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember_lbl" xml:lang="en-US">This member stands for later than six years and not later than seven years.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember_lbl" xml:lang="en-US">Later Than Six Years and Not Later Than Seven Years [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaterThanSixYearsAndNotLaterThanSevenYearsMember_lbl" xml:lang="en-US">2032</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember" xlink:label="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember" xlink:to="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember_lbl" xml:lang="en-US">This member stands for later than seven years and not later than eight years.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember_lbl" xml:lang="en-US">Later Than Seven Years and Not Later Than Eight Years [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaterThanSevenYearsAndNotLaterThanEightYearsMember_lbl" xml:lang="en-US">2033</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:to="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_lbl" xml:lang="en-US">Reclassification adjustments on cash flow hedges, before tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_lbl" xml:lang="en-US">Before taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CounterpartyNameAxis" xlink:label="srt_CounterpartyNameAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CounterpartyNameAxis" xlink:to="srt_CounterpartyNameAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CounterpartyNameAxis_lbl" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RepurchaseAgreementCounterpartyNameDomain" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolBusinessGroupMember" xlink:label="ec_EcopetrolBusinessGroupMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolBusinessGroupMember" xlink:to="ec_EcopetrolBusinessGroupMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolBusinessGroupMember_lbl" xml:lang="en-US">Represents information pertaining to Ecopetrol Business Group.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolBusinessGroupMember_lbl" xml:lang="en-US">Ecopetrol Business Group</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaColombiaMember" xlink:label="ec_IsaColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaColombiaMember" xlink:to="ec_IsaColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaColombiaMember_lbl" xml:lang="en-US">Isa Colombia</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaColombiaMember_lbl" xml:lang="en-US">Isa Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaColombiaMember_lbl" xml:lang="en-US">ISA Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencySwapContractMember" xlink:label="ifrs-full_CurrencySwapContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrencySwapContractMember" xlink:to="ifrs-full_CurrencySwapContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrencySwapContractMember_lbl" xml:lang="en-US">Currency swap contract</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntervialChileMember" xlink:label="ec_IntervialChileMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntervialChileMember" xlink:to="ec_IntervialChileMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IntervialChileMember_lbl" xml:lang="en-US">Intervial Chile [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntervialChileMember_lbl" xml:lang="en-US">Intervial Chile [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IntervialChileMember_lbl" xml:lang="en-US">Intervial Chile</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaCtepMember" xlink:label="ec_IsaCtepMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaCtepMember" xlink:to="ec_IsaCtepMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaCtepMember_lbl" xml:lang="en-US">This member stands for ISA CTEP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaCtepMember_lbl" xml:lang="en-US">ISA CTEP [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaCtepMember_lbl" xml:lang="en-US">ISA CTEP</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:label="ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:to="ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis_lbl" xml:lang="en-US">Credit impairment of financial instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:label="ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:to="ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain_lbl" xml:lang="en-US">Credit impairment of financial instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:label="ifrs-full_FinancialInstrumentsNotCreditimpairedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:to="ifrs-full_FinancialInstrumentsNotCreditimpairedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialInstrumentsNotCreditimpairedMember_lbl" xml:lang="en-US">Financial assets past due but not impaired [member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastDueStatusAxis" xlink:label="ifrs-full_PastDueStatusAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PastDueStatusAxis" xlink:to="ifrs-full_PastDueStatusAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PastDueStatusAxis_lbl" xml:lang="en-US">Past due status [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastDueStatusDomain" xlink:label="ifrs-full_PastDueStatusDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PastDueStatusDomain" xlink:to="ifrs-full_PastDueStatusDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PastDueStatusDomain_lbl" xml:lang="en-US">Past due status [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeMonthsMember" xlink:label="ifrs-full_LaterThanThreeMonthsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanThreeMonthsMember" xlink:to="ifrs-full_LaterThanThreeMonthsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanThreeMonthsMember_lbl" xml:lang="en-US">Less than 3 months overdue [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanThreeMonthsMember_lbl" xml:lang="en-US">Less than 3 months overdue</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:label="ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:to="ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember_lbl" xml:lang="en-US">Between 3 and 6 months overdue [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember_lbl" xml:lang="en-US">Between 3 and 6 months overdue</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaterThanSixMonthMember" xlink:label="ec_LaterThanSixMonthMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaterThanSixMonthMember" xlink:to="ec_LaterThanSixMonthMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaterThanSixMonthMember_lbl" xml:lang="en-US">More than 6 months overdue [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaterThanSixMonthMember_lbl" xml:lang="en-US">More than 6 months overdue</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseInFloatingInterestMember" xlink:label="ec_IncreaseInFloatingInterestMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseInFloatingInterestMember" xlink:to="ec_IncreaseInFloatingInterestMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseInFloatingInterestMember_lbl" xml:lang="en-US">Increase in floating interest (+100 basis points)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DecreaseInFloatingInterestMember" xlink:label="ec_DecreaseInFloatingInterestMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DecreaseInFloatingInterestMember" xlink:to="ec_DecreaseInFloatingInterestMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DecreaseInFloatingInterestMember_lbl" xml:lang="en-US">Decrease in floating interest (-100 basis points)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInFinancialAssetsExpenses" xlink:label="ec_IncreaseDecreaseInFinancialAssetsExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInFinancialAssetsExpenses" xlink:to="ec_IncreaseDecreaseInFinancialAssetsExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInFinancialAssetsExpenses_lbl" xml:lang="en-US">The increase or decrease in financial assets expense during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInFinancialAssetsExpenses_lbl" xml:lang="en-US">Increase decrease in financial assets expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInFinancialAssetsExpenses_lbl" xml:lang="en-US">Financial assets (Financial expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInFinancialAssetsIncome" xlink:label="ec_IncreaseDecreaseInFinancialAssetsIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInFinancialAssetsIncome" xlink:to="ec_IncreaseDecreaseInFinancialAssetsIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInFinancialAssetsIncome_lbl" xml:lang="en-US">The increase or decrease in financial assets income during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInFinancialAssetsIncome_lbl" xml:lang="en-US">Increase decrease in financial assets income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInFinancialAssetsIncome_lbl" xml:lang="en-US">Financial assets (Financial income)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInFinancialLiabilitiesIncome" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInFinancialLiabilitiesIncome" xlink:to="ec_IncreaseDecreaseInFinancialLiabilitiesIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesIncome_lbl" xml:lang="en-US">The increase or decrease in financial liabilities income during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesIncome_lbl" xml:lang="en-US">increase decrease in financial liabilities income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesIncome_lbl" xml:lang="en-US">Financial liabilities (Financial income)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInFinancialLiabilitiesExpenses" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses" xlink:to="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses_lbl" xml:lang="en-US">The increase or decrease in financial liabilities expenses during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses_lbl" xml:lang="en-US">Increase decrease in financial liabilities expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInFinancialLiabilitiesExpenses_lbl" xml:lang="en-US">Financial liabilities (Financial expenses)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome" xlink:label="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome" xlink:to="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome_lbl" xml:lang="en-US">The increase or decrease in interest in other comprehensive income during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome_lbl" xml:lang="en-US">Increase decrease in interest in other comprehensive income</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IncreaseDecreaseInInterestInOtherComprehensiveIncome_lbl" xml:lang="en-US">Plan assets (Other comprehensive income)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BankBorrowingsUndiscountedCashFlows" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BankBorrowingsUndiscountedCashFlows" xlink:to="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" xml:lang="en-US">Bank borrowings, undiscounted cash flows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" xml:lang="en-US">Loans (payment of principal and interest)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:to="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" xml:lang="en-US">Trade and other payables, undiscounted cash flows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:to="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" xml:lang="en-US">Non-derivative financial liabilities, undiscounted cash flows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ClosingForeignExchangeRates" xlink:label="ec_ClosingForeignExchangeRates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ClosingForeignExchangeRates" xlink:to="ec_ClosingForeignExchangeRates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ClosingForeignExchangeRates_lbl" xml:lang="en-US">The amount of closing foreign exchange rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ClosingForeignExchangeRates_lbl" xml:lang="en-US">Closing Foreign Exchange Rates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ClosingForeignExchangeRates_lbl" xml:lang="en-US">Closing foreign exchange rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetAssetsLiabilities" xlink:label="ifrs-full_NetAssetsLiabilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetAssetsLiabilities" xlink:to="ifrs-full_NetAssetsLiabilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetAssetsLiabilities_lbl" xml:lang="en-US">Assets (liabilities)</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NetAssetsLiabilities_lbl" xml:lang="en-US">Net financial debt</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LeverageRatioPercentage" xlink:label="ec_LeverageRatioPercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LeverageRatioPercentage" xlink:to="ec_LeverageRatioPercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LeverageRatioPercentage_lbl" xml:lang="en-US">The leverage ratio of entity which derives from the mixture of owners' equity and debt to finance their operations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LeverageRatioPercentage_lbl" xml:lang="en-US">Leverage ratio percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_LeverageRatioPercentage_lbl" xml:lang="en-US">Leverage (1)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommodityPriceRiskMember" xlink:label="ifrs-full_CommodityPriceRiskMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CommodityPriceRiskMember" xlink:to="ifrs-full_CommodityPriceRiskMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CommodityPriceRiskMember_lbl" xml:lang="en-US">Commodity price risk [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CommodityPriceRiskMember_lbl" xml:lang="en-US">Commodity price risk</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInvestmentPropertyAxis" xlink:label="ifrs-full_TypesOfInvestmentPropertyAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInvestmentPropertyAxis" xlink:to="ifrs-full_TypesOfInvestmentPropertyAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInvestmentPropertyAxis_lbl" xml:lang="en-US">Types of investment property [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInvestmentPropertyDomain" xlink:label="ifrs-full_TypesOfInvestmentPropertyDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInvestmentPropertyDomain" xlink:to="ifrs-full_TypesOfInvestmentPropertyDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInvestmentPropertyDomain_lbl" xml:lang="en-US">Types of investment property [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PesoPortfolioMember" xlink:label="ec_PesoPortfolioMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PesoPortfolioMember" xlink:to="ec_PesoPortfolioMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PesoPortfolioMember_lbl" xml:lang="en-US">Credit risk in Peso portfolio</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UsDollorPortfolioMember" xlink:label="ec_UsDollorPortfolioMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UsDollorPortfolioMember" xlink:to="ec_UsDollorPortfolioMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UsDollorPortfolioMember_lbl" xml:lang="en-US">This member stands for us dollar portfolio.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UsDollorPortfolioMember_lbl" xml:lang="en-US">Us Dollor Portfolio [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UsDollorPortfolioMember_lbl" xml:lang="en-US">Us Dollar Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ColombianPesoMember" xlink:label="ec_ColombianPesoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ColombianPesoMember" xlink:to="ec_ColombianPesoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ColombianPesoMember_lbl" xml:lang="en-US">This member stands for colombian peso.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ColombianPesoMember_lbl" xml:lang="en-US">Colombian Peso [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ColombianPesoMember_lbl" xml:lang="en-US">Colombian Peso</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BrentPutOptionsMember" xlink:label="ec_BrentPutOptionsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BrentPutOptionsMember" xlink:to="ec_BrentPutOptionsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BrentPutOptionsMember_lbl" xml:lang="en-US">This member stands for Brent put options.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BrentPutOptionsMember_lbl" xml:lang="en-US">Brent Put Options [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BrentPutOptionsMember_lbl" xml:lang="en-US">Brent Put Options</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TrmCollarsMember" xlink:label="ec_TrmCollarsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TrmCollarsMember" xlink:to="ec_TrmCollarsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TrmCollarsMember_lbl" xml:lang="en-US">This member stands for TRM collars.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TrmCollarsMember_lbl" xml:lang="en-US">TRM Collars [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TrmCollarsMember_lbl" xml:lang="en-US">TRM Collars</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IncreaseDecreaseInForeignExchangeRate" xlink:label="ec_IncreaseDecreaseInForeignExchangeRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IncreaseDecreaseInForeignExchangeRate" xlink:to="ec_IncreaseDecreaseInForeignExchangeRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IncreaseDecreaseInForeignExchangeRate_lbl" xml:lang="en-US">The percentage of the value of foreign exchange price increased decreased during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IncreaseDecreaseInForeignExchangeRate_lbl" xml:lang="en-US">The Increase Decrease In Foreign exchange Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IncreaseDecreaseInForeignExchangeRate_lbl" xml:lang="en-US">Increase decrease in foreign exchange rate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:label="ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" xml:lang="en-US">Gross financial assets set off against financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" xml:lang="en-US">Net liabilities of companies in the group with a different functional currency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency" xlink:label="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency" xlink:to="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency_lbl" xml:lang="en-US">The amount represents net position of assets and liabilities of functional currency.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency_lbl" xml:lang="en-US">Net Position of Assets and Liabilities of Functional Currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NetPositionOfAssetsAndLiabilitiesOfFunctionalCurrency_lbl" xml:lang="en-US">Net position of assets and liabilities different functional currency</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:label="ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" xml:lang="en-US">Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_lbl" xml:lang="en-US">Exchange difference valuation of remaining net liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MaximumPercentageOfCashInvestmentHeldInPortfolio" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolio" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MaximumPercentageOfCashInvestmentHeldInPortfolio" xlink:to="ec_MaximumPercentageOfCashInvestmentHeldInPortfolio_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolio_lbl" xml:lang="en-US">The percentage of maximum investment in terms of cash provided by entity in portfolio.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MaximumPercentageOfCashInvestmentHeldInPortfolio_lbl" xml:lang="en-US">Maximum percentage of cash investment held in portfolio</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic" xlink:label="ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic" xlink:to="ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic_lbl" xml:lang="en-US">Risk exposure associated with instruments sharing characteristic</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic_lbl" xml:lang="en-US">Total net asset (liability) position in swaps</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfInstalledCapacityAimedToTotalCapacity" xlink:label="ec_PercentageOfInstalledCapacityAimedToTotalCapacity" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfInstalledCapacityAimedToTotalCapacity" xlink:to="ec_PercentageOfInstalledCapacityAimedToTotalCapacity_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfInstalledCapacityAimedToTotalCapacity_lbl" xml:lang="en-US">Represents the percentage of installed capacity aimed to be maintained for the the total capacity of the group.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfInstalledCapacityAimedToTotalCapacity_lbl" xml:lang="en-US">Percentage of Installed Capacity Aimed To The Total Capacity</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfInstalledCapacityAimedToTotalCapacity_lbl" xml:lang="en-US">Renewable energy installed capacity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_lbl" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligaoEltricaDoMadeiraS.a.Member" xlink:label="ec_InterligaoEltricaDoMadeiraS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligaoEltricaDoMadeiraS.a.Member" xlink:to="ec_InterligaoEltricaDoMadeiraS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligaoEltricaDoMadeiraS.a.Member_lbl" xml:lang="en-US">Represents information pertaining to Interligao Eltrica do Madeira S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligaoEltricaDoMadeiraS.a.Member_lbl" xml:lang="en-US">Interligao Eltrica do Madeira S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InterligaoEltricaDoMadeiraS.a.Member_lbl" xml:lang="en-US">Interligao Eltrica do Madeira S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaGaranhunsS.aMember" xlink:label="ec_InterligacaoEletricaGaranhunsS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaGaranhunsS.aMember" xlink:to="ec_InterligacaoEletricaGaranhunsS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaGaranhunsS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Garanhuns S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaGaranhunsS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Garanhuns S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaGaranhunsS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Garanhuns S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaParaguacuS.aMember" xlink:label="ec_InterligacaoEletricaParaguacuS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaParaguacuS.aMember" xlink:to="ec_InterligacaoEletricaParaguacuS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaParaguacuS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Paraguau S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaParaguacuS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Paraguacu S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaParaguacuS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Paraguau S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaAimoresS.aMember" xlink:label="ec_InterligacaoEletricaAimoresS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaAimoresS.aMember" xlink:to="ec_InterligacaoEletricaAimoresS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaAimoresS.aMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Aimors S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaAimoresS.aMember_lbl" xml:lang="en-US">Interligacao Eletrica Aimores. S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaAimoresS.aMember_lbl" xml:lang="en-US">Interligao Eltrica Aimors S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaIvaiS.a.Member" xlink:label="ec_InterligacaoEletricaIvaiS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaIvaiS.a.Member" xlink:to="ec_InterligacaoEletricaIvaiS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaIvaiS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Aimors S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaIvaiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Ivai S.A.[Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaIvaiS.a.Member_lbl" xml:lang="en-US">Interligao Eltrica Iva S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member" xlink:to="ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member_lbl" xml:lang="en-US">Represents information pertaining to Transmissora Aliana de Energia Eltrica S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member_lbl" xml:lang="en-US">Transmissora Alianca de Energia Eltrica S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConsorcioElectricoYapayS.aMember" xlink:label="ec_ConsorcioElectricoYapayS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConsorcioElectricoYapayS.aMember" xlink:to="ec_ConsorcioElectricoYapayS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConsorcioElectricoYapayS.aMember_lbl" xml:lang="en-US">The information pertaining to Consorcio Electrico Yapay S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConsorcioElectricoYapayS.aMember_lbl" xml:lang="en-US">Consorcio Electrico Yapay S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConsorcioElectricoYapayS.aMember_lbl" xml:lang="en-US">Consorcio Electrico Yapay S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConexionKimalLoAguirreS.a.Member" xlink:label="ec_ConexionKimalLoAguirreS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConexionKimalLoAguirreS.a.Member" xlink:to="ec_ConexionKimalLoAguirreS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConexionKimalLoAguirreS.a.Member_lbl" xml:lang="en-US">Represents information pertaining to Conexion Kimal Lo Aguirre S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConexionKimalLoAguirreS.a.Member_lbl" xml:lang="en-US">Conexion Kimal Lo Aguirre S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConexionKimalLoAguirreS.a.Member_lbl" xml:lang="en-US">Conexion Kimal Lo Aguirre S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_lbl" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesWhereEntityIsVenturerMember" xlink:label="ifrs-full_JointVenturesWhereEntityIsVenturerMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_JointVenturesWhereEntityIsVenturerMember" xlink:to="ifrs-full_JointVenturesWhereEntityIsVenturerMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_JointVenturesWhereEntityIsVenturerMember_lbl" xml:lang="en-US">Joint ventures where entity is venturer [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_JointVenturesWhereEntityIsVenturerMember_lbl" xml:lang="en-US">Joint Ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US">Transactions between related parties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US">Main transactions with related parties</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:to="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract_lbl" xml:lang="en-US">Investments in subsidiaries, joint ventures and associates [abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract_lbl" xml:lang="en-US">Joint ventures and Associates</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherReceivablesRelatedPartyTransactions" xlink:label="ec_TradeAndOtherReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherReceivablesRelatedPartyTransactions" xlink:to="ec_TradeAndOtherReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other receivables, resulting from related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade And Other Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions" xlink:label="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions" xlink:to="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other receivables, resulting from related party transactions, classified as current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Current Trade And Other Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables, Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions" xlink:label="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions" xlink:to="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other receivables, resulting from related party transactions, classified as non-current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Non Current Trade And Other Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables, Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:label="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:to="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other loans receivable, resulting from related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade And Other Loan Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables - Loans</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:label="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:to="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other loans receivable, resulting from related party transactions, classified as current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Current Trade And Other Loan Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables - Loans, Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:label="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions" xlink:to="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other loans receivable, resulting from related party transactions, classified as non-current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Non Current Trade And Other Loan Receivables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other receivables - Loans, Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradeAndOtherPayablesRelatedPartyTransactions" xlink:label="ec_TradeAndOtherPayablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradeAndOtherPayablesRelatedPartyTransactions" xlink:to="ec_TradeAndOtherPayablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other payables, resulting from related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade And Other Payables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions" xlink:label="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions" xlink:to="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other accounts payable, resulting from related party transactions, classified as current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Current Trade And Other Payables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other payables, Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions" xlink:label="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions" xlink:to="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of trade and other  payables, resulting from related party transactions, classified as non-current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Non Current Trade And Other Payables, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NonCurrentTradeAndOtherPayablesRelatedPartyTransactions_lbl" xml:lang="en-US">Trade and other payables, Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoansPayableRelatedPartyTransactions" xlink:label="ec_LoansPayableRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoansPayableRelatedPartyTransactions" xlink:to="ec_LoansPayableRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of loans payable, resulting from related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Loans Payable, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Loans and borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CurrentLoansPayableRelatedPartyTransactions" xlink:label="ec_CurrentLoansPayableRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CurrentLoansPayableRelatedPartyTransactions" xlink:to="ec_CurrentLoansPayableRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of loans payable, resulting from related party transactions, classified as current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Current Loans Payable, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Loans and borrowings, Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NoncurrentLoansPayableRelatedPartyTransactions" xlink:label="ec_NoncurrentLoansPayableRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NoncurrentLoansPayableRelatedPartyTransactions" xlink:to="ec_NoncurrentLoansPayableRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NoncurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">The amounts of loans payable, resulting from related party transactions, classified as non-current.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NoncurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Noncurrent Loans Payable, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NoncurrentLoansPayableRelatedPartyTransactions_lbl" xml:lang="en-US">Loans and borrowings, Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherLiabilitiesRelatedParties" xlink:label="ec_OtherLiabilitiesRelatedParties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherLiabilitiesRelatedParties" xlink:to="ec_OtherLiabilitiesRelatedParties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherLiabilitiesRelatedParties_lbl" xml:lang="en-US">The amount of liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherLiabilitiesRelatedParties_lbl" xml:lang="en-US">Other Liabilities Related parties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OtherLiabilitiesRelatedParties_lbl" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherLiabilitiesRelatedPartiesCurrent" xlink:label="ec_OtherLiabilitiesRelatedPartiesCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherLiabilitiesRelatedPartiesCurrent" xlink:to="ec_OtherLiabilitiesRelatedPartiesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherLiabilitiesRelatedPartiesCurrent_lbl" xml:lang="en-US">The amount of current liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties Current]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherLiabilitiesRelatedPartiesCurrent_lbl" xml:lang="en-US">Other Liabilities Related parties Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherLiabilitiesRelatedPartiesCurrent_lbl" xml:lang="en-US">Other liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherLiabilitiesRelatedPartiesNonCurrent" xlink:label="ec_OtherLiabilitiesRelatedPartiesNonCurrent" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherLiabilitiesRelatedPartiesNonCurrent" xlink:to="ec_OtherLiabilitiesRelatedPartiesNonCurrent_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherLiabilitiesRelatedPartiesNonCurrent_lbl" xml:lang="en-US">The amount of Non current liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties Non Current]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherLiabilitiesRelatedPartiesNonCurrent_lbl" xml:lang="en-US">Other Liabilities Related parties Non Current</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OtherLiabilitiesRelatedPartiesNonCurrent_lbl" xml:lang="en-US">Other liabilities, Non-current</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasesDelCaribeSaEspMember" xlink:label="ec_GasesDelCaribeSaEspMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasesDelCaribeSaEspMember" xlink:to="ec_GasesDelCaribeSaEspMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasesDelCaribeSaEspMember_lbl" xml:lang="en-US">This member stands for Gases del Caribe S.A E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasesDelCaribeSaEspMember_lbl" xml:lang="en-US">Gases Del Caribe SA ESP [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasesDelCaribeSaEspMember_lbl" xml:lang="en-US">Gases del Caribe S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SalesRelatedPartyTransactions" xlink:label="ec_SalesRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SalesRelatedPartyTransactions" xlink:to="ec_SalesRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SalesRelatedPartyTransactions_lbl" xml:lang="en-US">The amount of revenue arising from sales in related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SalesRelatedPartyTransactions_lbl" xml:lang="en-US">Sales, Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SalesRelatedPartyTransactions_lbl" xml:lang="en-US">Sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PurchasesAndOtherAssetsRelatedPartyTransactions" xlink:label="ec_PurchasesAndOtherAssetsRelatedPartyTransactions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PurchasesAndOtherAssetsRelatedPartyTransactions" xlink:to="ec_PurchasesAndOtherAssetsRelatedPartyTransactions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PurchasesAndOtherAssetsRelatedPartyTransactions_lbl" xml:lang="en-US">The amount of purchase and other transactions made by the entity in related party transactions.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PurchasesAndOtherAssetsRelatedPartyTransactions_lbl" xml:lang="en-US">Purchases And Other Assets Related Party Transactions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PurchasesAndOtherAssetsRelatedPartyTransactions_lbl" xml:lang="en-US">Cost of sales - Purchases and others</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalHydrocarbonsAgencyMember" xlink:label="ec_NationalHydrocarbonsAgencyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalHydrocarbonsAgencyMember" xlink:to="ec_NationalHydrocarbonsAgencyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalHydrocarbonsAgencyMember_lbl" xml:lang="en-US">This member stands for National Hydrocarbons Agency (ANH).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalHydrocarbonsAgencyMember_lbl" xml:lang="en-US">National Hydrocarbons Agency [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalHydrocarbonsAgencyMember_lbl" xml:lang="en-US">National Hydrocarbons Agency (ANH)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CancellationOfFees" xlink:label="ec_CancellationOfFees" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CancellationOfFees" xlink:to="ec_CancellationOfFees_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CancellationOfFees_lbl" xml:lang="en-US">The amount of fees to board members cancelled during the period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CancellationOfFees_lbl" xml:lang="en-US">Cancellation of Fees</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CancellationOfFees_lbl" xml:lang="en-US">Remuneration fees to board of directors</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PaymentOfKeyManagementPersonnelCompensation" xlink:label="ec_PaymentOfKeyManagementPersonnelCompensation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PaymentOfKeyManagementPersonnelCompensation" xlink:to="ec_PaymentOfKeyManagementPersonnelCompensation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PaymentOfKeyManagementPersonnelCompensation_lbl" xml:lang="en-US">The cash outflow for payment of key management personnel compensation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PaymentOfKeyManagementPersonnelCompensation_lbl" xml:lang="en-US">Payment Of Key Management Personnel Compensation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PaymentOfKeyManagementPersonnelCompensation_lbl" xml:lang="en-US">Payment of key management personnel compensation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OwnershipInterestHeldByGovernment" xlink:label="ec_OwnershipInterestHeldByGovernment" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OwnershipInterestHeldByGovernment" xlink:to="ec_OwnershipInterestHeldByGovernment_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OwnershipInterestHeldByGovernment_lbl" xml:lang="en-US">The percentage of entity ownership interest held by government.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OwnershipInterestHeldByGovernment_lbl" xml:lang="en-US">Ownership Interest Held By Government</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OwnershipInterestHeldByGovernment_lbl" xml:lang="en-US">Ownership interest held by government</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractNameAxis" xlink:label="ec_ContractNameAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractNameAxis" xlink:to="ec_ContractNameAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractNameAxis_lbl" xml:lang="en-US">Contract Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ContractNameDomain" xlink:label="ec_ContractNameDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ContractNameDomain" xlink:to="ec_ContractNameDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ContractNameDomain_lbl" xml:lang="en-US">Contract Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ChipironContractMember" xlink:label="ec_ChipironContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ChipironContractMember" xlink:to="ec_ChipironContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ChipironContractMember_lbl" xml:lang="en-US">This member stands for Chipiron Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ChipironContractMember_lbl" xml:lang="en-US">Chipiron Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ChipironContractMember_lbl" xml:lang="en-US">Chipiron</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConsechaContractMember" xlink:label="ec_ConsechaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConsechaContractMember" xlink:to="ec_ConsechaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConsechaContractMember_lbl" xml:lang="en-US">The member stands for Consecha contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConsechaContractMember_lbl" xml:lang="en-US">Cosecha Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConsechaContractMember_lbl" xml:lang="en-US">Cosecha</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CravoNorteContractMember" xlink:label="ec_CravoNorteContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CravoNorteContractMember" xlink:to="ec_CravoNorteContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CravoNorteContractMember_lbl" xml:lang="en-US">This member stands for Cravo norte Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CravoNorteContractMember_lbl" xml:lang="en-US">Cravo norte Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CravoNorteContractMember_lbl" xml:lang="en-US">Cravo norte</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RondonContractMember" xlink:label="ec_RondonContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RondonContractMember" xlink:to="ec_RondonContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RondonContractMember_lbl" xml:lang="en-US">This member stands for  Rondon Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RondonContractMember_lbl" xml:lang="en-US">Rondon Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RondonContractMember_lbl" xml:lang="en-US">Rondon</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_QuifaContractMember" xlink:label="ec_QuifaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_QuifaContractMember" xlink:to="ec_QuifaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_QuifaContractMember_lbl" xml:lang="en-US">Quifa Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_QuifaContractMember_lbl" xml:lang="en-US">Quifa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GuajiraContractMember" xlink:label="ec_GuajiraContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GuajiraContractMember" xlink:to="ec_GuajiraContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GuajiraContractMember_lbl" xml:lang="en-US">Guajira Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GuajiraContractMember_lbl" xml:lang="en-US">Guajira</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CpiPalaguaContractMember" xlink:label="ec_CpiPalaguaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CpiPalaguaContractMember" xlink:to="ec_CpiPalaguaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CpiPalaguaContractMember_lbl" xml:lang="en-US">This member stands for CPI Palagua contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CpiPalaguaContractMember_lbl" xml:lang="en-US">CPI Palagua Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CpiPalaguaContractMember_lbl" xml:lang="en-US">CPI Palagua</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Lla122ContractMember" xlink:label="ec_Lla122ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Lla122ContractMember" xlink:to="ec_Lla122ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Lla122ContractMember_lbl" xml:lang="en-US">This member stands for LLA-122 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Lla122ContractMember_lbl" xml:lang="en-US">LLA-122 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Lla122ContractMember_lbl" xml:lang="en-US">LLA-122</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Lla121ContractMember" xlink:label="ec_Lla121ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Lla121ContractMember" xlink:to="ec_Lla121ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Lla121ContractMember_lbl" xml:lang="en-US">This member stands for LLA-121 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Lla121ContractMember_lbl" xml:lang="en-US">LLA-121 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Lla121ContractMember_lbl" xml:lang="en-US">LLA-121</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Lla41ContractMember" xlink:label="ec_Lla41ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Lla41ContractMember" xlink:to="ec_Lla41ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Lla41ContractMember_lbl" xml:lang="en-US">This member stands for LLA-4-1 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Lla41ContractMember_lbl" xml:lang="en-US">LLA-4-1 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Lla41ContractMember_lbl" xml:lang="en-US">LLA-4-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EPCol1ContractMember" xlink:label="ec_EPCol1ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EPCol1ContractMember" xlink:to="ec_EPCol1ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EPCol1ContractMember_lbl" xml:lang="en-US">This member stands for E&amp;P COL 1 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EPCol1ContractMember_lbl" xml:lang="en-US">E&amp;P COL 1 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EPCol1ContractMember_lbl" xml:lang="en-US">E&amp;P COL 1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EPCol2ContractMember" xlink:label="ec_EPCol2ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EPCol2ContractMember" xlink:to="ec_EPCol2ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EPCol2ContractMember_lbl" xml:lang="en-US">This member stands for E&amp;P COL 2 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EPCol2ContractMember_lbl" xml:lang="en-US">E&amp;P COL 2 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EPCol2ContractMember_lbl" xml:lang="en-US">E&amp;P COL 2</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EPCol6ContractMember" xlink:label="ec_EPCol6ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EPCol6ContractMember" xlink:to="ec_EPCol6ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EPCol6ContractMember_lbl" xml:lang="en-US">This member stands for E&amp;P COL 6 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EPCol6ContractMember_lbl" xml:lang="en-US">E&amp;P COL 6 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EPCol6ContractMember_lbl" xml:lang="en-US">E&amp;P COL 6</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EPCol7ContractMember" xlink:label="ec_EPCol7ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EPCol7ContractMember" xlink:to="ec_EPCol7ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EPCol7ContractMember_lbl" xml:lang="en-US">This member stands for E&amp;P COL 7 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EPCol7ContractMember_lbl" xml:lang="en-US">E&amp;P COL 7 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EPCol7ContractMember_lbl" xml:lang="en-US">E&amp;P COL 7</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EEGuaOff0ContractMember" xlink:label="ec_EEGuaOff0ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EEGuaOff0ContractMember" xlink:to="ec_EEGuaOff0ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EEGuaOff0ContractMember_lbl" xml:lang="en-US">This member stands for E&amp;E GUA OFF-0 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EEGuaOff0ContractMember_lbl" xml:lang="en-US">E&amp;E GUA OFF-0 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EEGuaOff0ContractMember_lbl" xml:lang="en-US">E&amp;E GUA OFF-0</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ManaMember" xlink:label="ec_ManaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ManaMember" xlink:to="ec_ManaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ManaMember_lbl" xml:lang="en-US">This member stands for Mana.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ManaMember_lbl" xml:lang="en-US">Mana [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ManaMember_lbl" xml:lang="en-US">Mana</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RioOpiaMember" xlink:label="ec_RioOpiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RioOpiaMember" xlink:to="ec_RioOpiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RioOpiaMember_lbl" xml:lang="en-US">This member stands for Rio Opia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RioOpiaMember_lbl" xml:lang="en-US">Rio Opia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RioOpiaMember_lbl" xml:lang="en-US">Rio Opia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AmbrosiaMember" xlink:label="ec_AmbrosiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AmbrosiaMember" xlink:to="ec_AmbrosiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AmbrosiaMember_lbl" xml:lang="en-US">This member stands for Ambrosia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AmbrosiaMember_lbl" xml:lang="en-US">Ambrosia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AmbrosiaMember_lbl" xml:lang="en-US">Ambrosia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Llanos86ContractMember" xlink:label="ec_Llanos86ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Llanos86ContractMember" xlink:to="ec_Llanos86ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Llanos86ContractMember_lbl" xml:lang="en-US">The member stands for Llanos 86 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Llanos86ContractMember_lbl" xml:lang="en-US">Llanos 86 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Llanos86ContractMember_lbl" xml:lang="en-US">Llanos 86</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Llanos87ContractMember" xlink:label="ec_Llanos87ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Llanos87ContractMember" xlink:to="ec_Llanos87ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Llanos87ContractMember_lbl" xml:lang="en-US">The member stands for Llanos 87 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Llanos87ContractMember_lbl" xml:lang="en-US">Llanos 87 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Llanos87ContractMember_lbl" xml:lang="en-US">Llanos 87</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Llanos104ContractMember" xlink:label="ec_Llanos104ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Llanos104ContractMember" xlink:to="ec_Llanos104ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Llanos104ContractMember_lbl" xml:lang="en-US">The member stands for Llanos 104 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Llanos104ContractMember_lbl" xml:lang="en-US">Llanos 104 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Llanos104ContractMember_lbl" xml:lang="en-US">Llanos 104</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Llanos123ContractMember" xlink:label="ec_Llanos123ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Llanos123ContractMember" xlink:to="ec_Llanos123ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Llanos123ContractMember_lbl" xml:lang="en-US">This member stands for Llanos 123 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Llanos123ContractMember_lbl" xml:lang="en-US">Llanos 123 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Llanos123ContractMember_lbl" xml:lang="en-US">Llanos 123</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Llanos124ContractMember" xlink:label="ec_Llanos124ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Llanos124ContractMember" xlink:to="ec_Llanos124ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Llanos124ContractMember_lbl" xml:lang="en-US">This member stands for Llanos 124 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Llanos124ContractMember_lbl" xml:lang="en-US">Llanos 124 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Llanos124ContractMember_lbl" xml:lang="en-US">Llanos 124</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Ssjn1ContractMember" xlink:label="ec_Ssjn1ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Ssjn1ContractMember" xlink:to="ec_Ssjn1ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Ssjn1ContractMember_lbl" xml:lang="en-US">The member stands for SSJN1 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Ssjn1ContractMember_lbl" xml:lang="en-US">SSJN1 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Ssjn1ContractMember_lbl" xml:lang="en-US">SSJN1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PerdicesContractMember" xlink:label="ec_PerdicesContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PerdicesContractMember" xlink:to="ec_PerdicesContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PerdicesContractMember_lbl" xml:lang="en-US">This member stands for Perdices contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PerdicesContractMember_lbl" xml:lang="en-US">Perdices Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PerdicesContractMember_lbl" xml:lang="en-US">Perdices</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Vim42ContractMember" xlink:label="ec_Vim42ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Vim42ContractMember" xlink:to="ec_Vim42ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Vim42ContractMember_lbl" xml:lang="en-US">This member stands for VIM-42 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Vim42ContractMember_lbl" xml:lang="en-US">VIM-42 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Vim42ContractMember_lbl" xml:lang="en-US">VIM-42</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Ssjn31ContractMember" xlink:label="ec_Ssjn31ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Ssjn31ContractMember" xlink:to="ec_Ssjn31ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Ssjn31ContractMember_lbl" xml:lang="en-US">This member stands for SSJN3-1 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Ssjn31ContractMember_lbl" xml:lang="en-US">SSJN3-1 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Ssjn31ContractMember_lbl" xml:lang="en-US">SSJN3-1</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElGuandoMember" xlink:label="ec_ElGuandoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElGuandoMember" xlink:to="ec_ElGuandoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElGuandoMember_lbl" xml:lang="en-US">This member stands for El Guando contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElGuandoMember_lbl" xml:lang="en-US">El Guando [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ElGuandoMember_lbl" xml:lang="en-US">El Guando</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElNinoMember" xlink:label="ec_ElNinoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElNinoMember" xlink:to="ec_ElNinoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElNinoMember_lbl" xml:lang="en-US">This member stands for El Nio contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElNinoMember_lbl" xml:lang="en-US">El Nino [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ElNinoMember_lbl" xml:lang="en-US">El Nino</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GunflintContractMember" xlink:label="ec_GunflintContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GunflintContractMember" xlink:to="ec_GunflintContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GunflintContractMember_lbl" xml:lang="en-US">This member stands for  Gunflint Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GunflintContractMember_lbl" xml:lang="en-US">Gunflint Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GunflintContractMember_lbl" xml:lang="en-US">Gunflint</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DalmatianContractMember" xlink:label="ec_DalmatianContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DalmatianContractMember" xlink:to="ec_DalmatianContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DalmatianContractMember_lbl" xml:lang="en-US">The member stands for Dalmatian  Contract .</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DalmatianContractMember_lbl" xml:lang="en-US">Dalmatian Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DalmatianContractMember_lbl" xml:lang="en-US">Dalmatian</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_K2ContractMember" xlink:label="ec_K2ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_K2ContractMember" xlink:to="ec_K2ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_K2ContractMember_lbl" xml:lang="en-US">This member stands for K2 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_K2ContractMember_lbl" xml:lang="en-US">K2 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_K2ContractMember_lbl" xml:lang="en-US">K2</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsoxContractMember" xlink:label="ec_EsoxContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsoxContractMember" xlink:to="ec_EsoxContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsoxContractMember_lbl" xml:lang="en-US">The member stands for ESOX Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsoxContractMember_lbl" xml:lang="en-US">ESOX Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EsoxContractMember_lbl" xml:lang="en-US">ESOX</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1707ContractMember" xlink:label="ec_SM1707ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1707ContractMember" xlink:to="ec_SM1707ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1707ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1707 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1707ContractMember_lbl" xml:lang="en-US">S-M-1707 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1707ContractMember_lbl" xml:lang="en-US">S-M-1707</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1715ContractMember" xlink:label="ec_SM1715ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1715ContractMember" xlink:to="ec_SM1715ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1715ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1715 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1715ContractMember_lbl" xml:lang="en-US">S-M-1715 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1715ContractMember_lbl" xml:lang="en-US">S-M-1715</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1717ContractMember" xlink:label="ec_SM1717ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1717ContractMember" xlink:to="ec_SM1717ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1717ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1717 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1717ContractMember_lbl" xml:lang="en-US">S-M-1717 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1717ContractMember_lbl" xml:lang="en-US">S-M-1717</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1719ContractMember" xlink:label="ec_SM1719ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1719ContractMember" xlink:to="ec_SM1719ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1719ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1719 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1719ContractMember_lbl" xml:lang="en-US">S-M-1719 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1719ContractMember_lbl" xml:lang="en-US">S-M-1719</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1709ContractMember" xlink:label="ec_SM1709ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1709ContractMember" xlink:to="ec_SM1709ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1709ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1709 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1709ContractMember_lbl" xml:lang="en-US">S-M-1709 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1709ContractMember_lbl" xml:lang="en-US">S-M-1709</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1908ContractMember" xlink:label="ec_SM1908ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1908ContractMember" xlink:to="ec_SM1908ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1908ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1908 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1908ContractMember_lbl" xml:lang="en-US">S-M-1908 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1908ContractMember_lbl" xml:lang="en-US">S-M-1908</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1601ContractMember" xlink:label="ec_SM1601ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1601ContractMember" xlink:to="ec_SM1601ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1601ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1601 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1601ContractMember_lbl" xml:lang="en-US">S-M-1601 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1601ContractMember_lbl" xml:lang="en-US">S-M-1601</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1713ContractMember" xlink:label="ec_SM1713ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1713ContractMember" xlink:to="ec_SM1713ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1713ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1713 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1713ContractMember_lbl" xml:lang="en-US">S-M-1713 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1713ContractMember_lbl" xml:lang="en-US">S-M-1713</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1817ContractMember" xlink:label="ec_SM1817ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1817ContractMember" xlink:to="ec_SM1817ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1817ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1817 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1817ContractMember_lbl" xml:lang="en-US">S-M-1817 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1817ContractMember_lbl" xml:lang="en-US">S-M-1817</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1599ContractMember" xlink:label="ec_SM1599ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1599ContractMember" xlink:to="ec_SM1599ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1599ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1599 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1599ContractMember_lbl" xml:lang="en-US">S-M-1599 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1599ContractMember_lbl" xml:lang="en-US">S-M-1599</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SM1910ContractMember" xlink:label="ec_SM1910ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SM1910ContractMember" xlink:to="ec_SM1910ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SM1910ContractMember_lbl" xml:lang="en-US">This member stands for S-M-1910 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SM1910ContractMember_lbl" xml:lang="en-US">S-M-1910 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SM1910ContractMember_lbl" xml:lang="en-US">S-M-1910</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SulDeGatoDoMatoContractMember" xlink:label="ec_SulDeGatoDoMatoContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SulDeGatoDoMatoContractMember" xlink:to="ec_SulDeGatoDoMatoContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SulDeGatoDoMatoContractMember_lbl" xml:lang="en-US">This member stands for Sul de Gato do Mato.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SulDeGatoDoMatoContractMember_lbl" xml:lang="en-US">Sul de Gato do Mato Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SulDeGatoDoMatoContractMember_lbl" xml:lang="en-US">Sul de Gato do Mato</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BmS54ContractMember" xlink:label="ec_BmS54ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BmS54ContractMember" xlink:to="ec_BmS54ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BmS54ContractMember_lbl" xml:lang="en-US">This member stands for BM-S-54 contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BmS54ContractMember_lbl" xml:lang="en-US">BM-S-54 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BmS54ContractMember_lbl" xml:lang="en-US">BM-S-54</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RodeoMidlandBasinContractMember" xlink:label="ec_RodeoMidlandBasinContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RodeoMidlandBasinContractMember" xlink:to="ec_RodeoMidlandBasinContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RodeoMidlandBasinContractMember_lbl" xml:lang="en-US">The member stands for Rodeo Midland Basin  Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RodeoMidlandBasinContractMember_lbl" xml:lang="en-US">Rodeo Midland Basin Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RodeoMidlandBasinContractMember_lbl" xml:lang="en-US">Rodeo Midland Basin</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DelawareBasinContractMember" xlink:label="ec_DelawareBasinContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DelawareBasinContractMember" xlink:to="ec_DelawareBasinContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DelawareBasinContractMember_lbl" xml:lang="en-US">The member stands for Delaware Basin Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DelawareBasinContractMember_lbl" xml:lang="en-US">Delaware Basin Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DelawareBasinContractMember_lbl" xml:lang="en-US">Delaware Basin</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Bloque6ContractMember" xlink:label="ec_Bloque6ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Bloque6ContractMember" xlink:to="ec_Bloque6ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Bloque6ContractMember_lbl" xml:lang="en-US">The member stands for Bloque 6 Contract .</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Bloque6ContractMember_lbl" xml:lang="en-US">Bloque 6 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Bloque6ContractMember_lbl" xml:lang="en-US">Bloque 6</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PauBrasilContractMember" xlink:label="ec_PauBrasilContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PauBrasilContractMember" xlink:to="ec_PauBrasilContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PauBrasilContractMember_lbl" xml:lang="en-US">The member stands for Pau Brasil  Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PauBrasilContractMember_lbl" xml:lang="en-US">Pau Brasil Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PauBrasilContractMember_lbl" xml:lang="en-US">Pau Brasil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SierracolEnergyAraucaLlcMember" xlink:label="ec_SierracolEnergyAraucaLlcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SierracolEnergyAraucaLlcMember" xlink:to="ec_SierracolEnergyAraucaLlcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SierracolEnergyAraucaLlcMember_lbl" xml:lang="en-US">This member stands for SierraCol Energy Arauca, LLC.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SierracolEnergyAraucaLlcMember_lbl" xml:lang="en-US">SierraCol Energy Arauca, LLC [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SierracolEnergyAraucaLlcMember_lbl" xml:lang="en-US">SierraCol Energy Arauca, LLC</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FronteraEnergyColombiaCorpMember" xlink:label="ec_FronteraEnergyColombiaCorpMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FronteraEnergyColombiaCorpMember" xlink:to="ec_FronteraEnergyColombiaCorpMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FronteraEnergyColombiaCorpMember_lbl" xml:lang="en-US">This member stands for Frontera Energy Colombia Corp.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FronteraEnergyColombiaCorpMember_lbl" xml:lang="en-US">Frontera Energy Colombia Corp [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FronteraEnergyColombiaCorpMember_lbl" xml:lang="en-US">Frontera Energy Colombia Corp</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HocolS.a.Member" xlink:label="ec_HocolS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HocolS.a.Member" xlink:to="ec_HocolS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HocolS.a.Member_lbl" xml:lang="en-US">This member stands for Hocol S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HocolS.a.Member_lbl" xml:lang="en-US">Hocol S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HocolS.a.Member_lbl" xml:lang="en-US">Hocol S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_UnionTemporalIsmocolJoshiParkoMember" xlink:label="ec_UnionTemporalIsmocolJoshiParkoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_UnionTemporalIsmocolJoshiParkoMember" xlink:to="ec_UnionTemporalIsmocolJoshiParkoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_UnionTemporalIsmocolJoshiParkoMember_lbl" xml:lang="en-US">This member stands for Union Temporal Ismocol Joshi Parko.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_UnionTemporalIsmocolJoshiParkoMember_lbl" xml:lang="en-US">Union Temporal Ismocol Joshi Parko [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_UnionTemporalIsmocolJoshiParkoMember_lbl" xml:lang="en-US">Union Temporal Ismocol Joshi Parko</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ParexResourcesColombiaLtdMember" xlink:label="ec_ParexResourcesColombiaLtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ParexResourcesColombiaLtdMember" xlink:to="ec_ParexResourcesColombiaLtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ParexResourcesColombiaLtdMember_lbl" xml:lang="en-US">This member stands for Parex Resources Colombia LTD.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ParexResourcesColombiaLtdMember_lbl" xml:lang="en-US">Parex Resources Colombia LTD [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ParexResourcesColombiaLtdMember_lbl" xml:lang="en-US">Parex Resources Colombia LTD</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AnadarkoColombiaCompanyOxyMember" xlink:label="ec_AnadarkoColombiaCompanyOxyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AnadarkoColombiaCompanyOxyMember" xlink:to="ec_AnadarkoColombiaCompanyOxyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AnadarkoColombiaCompanyOxyMember_lbl" xml:lang="en-US">This member stands for Anadarko Colombia Company (OXY).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AnadarkoColombiaCompanyOxyMember_lbl" xml:lang="en-US">Anadarko Colombia Company (OXY) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AnadarkoColombiaCompanyOxyMember_lbl" xml:lang="en-US">Anadarko Colombia Company (OXY)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PetrobrasMember" xlink:label="ec_PetrobrasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PetrobrasMember" xlink:to="ec_PetrobrasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PetrobrasMember_lbl" xml:lang="en-US">This member stands for pertrobras.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PetrobrasMember_lbl" xml:lang="en-US">Petrobras [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PetrobrasMember_lbl" xml:lang="en-US">Petrobras</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InteroilColombiaMember" xlink:label="ec_InteroilColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InteroilColombiaMember" xlink:to="ec_InteroilColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InteroilColombiaMember_lbl" xml:lang="en-US">The member stands for Interoil Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InteroilColombiaMember_lbl" xml:lang="en-US">Interoil Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InteroilColombiaMember_lbl" xml:lang="en-US">Interoil Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GeoparkColombiaSasMember" xlink:label="ec_GeoparkColombiaSasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GeoparkColombiaSasMember" xlink:to="ec_GeoparkColombiaSasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GeoparkColombiaSasMember_lbl" xml:lang="en-US">This member stands for Geopark Colombia SAS.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GeoparkColombiaSasMember_lbl" xml:lang="en-US">Geopark Colombia SAS [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GeoparkColombiaSasMember_lbl" xml:lang="en-US">Geopark Colombia SAS</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LewisEnergyColombiaMember" xlink:label="ec_LewisEnergyColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LewisEnergyColombiaMember" xlink:to="ec_LewisEnergyColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LewisEnergyColombiaMember_lbl" xml:lang="en-US">This member stands for Lewis Energy Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LewisEnergyColombiaMember_lbl" xml:lang="en-US">Lewis Energy Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LewisEnergyColombiaMember_lbl" xml:lang="en-US">Lewis Energy Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PerencoOilGasMember" xlink:label="ec_PerencoOilGasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PerencoOilGasMember" xlink:to="ec_PerencoOilGasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PerencoOilGasMember_lbl" xml:lang="en-US">This member stands for Perenco Oil &amp; Gas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PerencoOilGasMember_lbl" xml:lang="en-US">Perenco Oil &amp; Gas [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PerencoOilGasMember_lbl" xml:lang="en-US">Perenco Oil &amp; Gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_QuarterNorthEnergyMember" xlink:label="ec_QuarterNorthEnergyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_QuarterNorthEnergyMember" xlink:to="ec_QuarterNorthEnergyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_QuarterNorthEnergyMember_lbl" xml:lang="en-US">This member stands for Quarter North Energy.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_QuarterNorthEnergyMember_lbl" xml:lang="en-US">Quarter North Energy [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_QuarterNorthEnergyMember_lbl" xml:lang="en-US">Quarter North Energy</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MurphyExplorationAndProductionCompanyUsaMember" xlink:label="ec_MurphyExplorationAndProductionCompanyUsaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MurphyExplorationAndProductionCompanyUsaMember" xlink:to="ec_MurphyExplorationAndProductionCompanyUsaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MurphyExplorationAndProductionCompanyUsaMember_lbl" xml:lang="en-US">This member is stands for Murphy Exploration and Production Company - USA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MurphyExplorationAndProductionCompanyUsaMember_lbl" xml:lang="en-US">Murphy Exploration and Production Company - USA [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MurphyExplorationAndProductionCompanyUsaMember_lbl" xml:lang="en-US">Murphy Exploration and Production Company - USA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OxyAnadarkoMember" xlink:label="ec_OxyAnadarkoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OxyAnadarkoMember" xlink:to="ec_OxyAnadarkoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OxyAnadarkoMember_lbl" xml:lang="en-US">The member stands for OXY (Anadarko).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OxyAnadarkoMember_lbl" xml:lang="en-US">OXY (Anadarko) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OxyAnadarkoMember_lbl" xml:lang="en-US">OXY (Anadarko)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HessMember" xlink:label="ec_HessMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HessMember" xlink:to="ec_HessMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HessMember_lbl" xml:lang="en-US">The member stands for HESS.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HessMember_lbl" xml:lang="en-US">HESS [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HessMember_lbl" xml:lang="en-US">HESS</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ShellMember" xlink:label="ec_ShellMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ShellMember" xlink:to="ec_ShellMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ShellMember_lbl" xml:lang="en-US">This member stands for shell.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ShellMember_lbl" xml:lang="en-US">Shell [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ShellMember_lbl" xml:lang="en-US">Shell</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BpEnergyMember" xlink:label="ec_BpEnergyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BpEnergyMember" xlink:to="ec_BpEnergyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BpEnergyMember_lbl" xml:lang="en-US">This member stands for BP Energy.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BpEnergyMember_lbl" xml:lang="en-US">BP Energy [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BpEnergyMember_lbl" xml:lang="en-US">BP Energy</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OccidentalMidlandBasinLlcOxyMember" xlink:label="ec_OccidentalMidlandBasinLlcOxyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OccidentalMidlandBasinLlcOxyMember" xlink:to="ec_OccidentalMidlandBasinLlcOxyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OccidentalMidlandBasinLlcOxyMember_lbl" xml:lang="en-US">This member stands for Occidental Midland Basin, LLC (Oxy).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OccidentalMidlandBasinLlcOxyMember_lbl" xml:lang="en-US">Occidental Midland Basin, LLC (Oxy) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OccidentalMidlandBasinLlcOxyMember_lbl" xml:lang="en-US">Occidental Midland Basin, LLC (Oxy)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PcCarigaliMexicoOperationSaMember" xlink:label="ec_PcCarigaliMexicoOperationSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PcCarigaliMexicoOperationSaMember" xlink:to="ec_PcCarigaliMexicoOperationSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PcCarigaliMexicoOperationSaMember_lbl" xml:lang="en-US">This member stands for PC Carigali Mexico Operation SA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PcCarigaliMexicoOperationSaMember_lbl" xml:lang="en-US">PC Carigali Mexico Operation SA [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PcCarigaliMexicoOperationSaMember_lbl" xml:lang="en-US">PC Carigali Mexico Operation SA</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NameOfJointOperation" xlink:label="ifrs-full_NameOfJointOperation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NameOfJointOperation" xlink:to="ifrs-full_NameOfJointOperation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NameOfJointOperation_lbl" xml:lang="en-US">Name of joint operation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NameOfJointOperation_lbl" xml:lang="en-US">Contract</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TypeOfContract" xlink:label="ec_TypeOfContract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TypeOfContract" xlink:to="ec_TypeOfContract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TypeOfContract_lbl" xml:lang="en-US">Represents the type of contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TypeOfContract_lbl" xml:lang="en-US">Type Of Contract</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TypeOfContract_lbl" xml:lang="en-US">Type</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInJointOperation" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointOperation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfOwnershipInterestInJointOperation" xlink:to="ifrs-full_ProportionOfOwnershipInterestInJointOperation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointOperation_lbl" xml:lang="en-US">Proportion of ownership interest in joint operation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInJointOperation_lbl" xml:lang="en-US">% Participation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor" xlink:to="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor_lbl" xml:lang="en-US">Percentage of ownership interest in joint venture in addition to Production Factor.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor_lbl" xml:lang="en-US">Percentage Of Ownership Interest In Joint Venture In Addition To Production Factor</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToProductionFactor_lbl" xml:lang="en-US">% participation in addition to Production Factor</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil" xlink:to="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil_lbl" xml:lang="en-US">Percentage of ownership interest in joint venture in addition to High prices of oil.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil_lbl" xml:lang="en-US">Percentage Of Ownership Interest In Joint Venture In Addition To High Prices of Oil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToHighPricesOfOil_lbl" xml:lang="en-US">% participation in addition to High Prices of Oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap" xlink:to="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap_lbl" xml:lang="en-US">Percentage of ownership interest in joint venture in addition to PAP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap_lbl" xml:lang="en-US">Percentage of Ownership Interest In Joint Venture In addition to PAP</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureInAdditionToPap_lbl" xml:lang="en-US">% participation in addition to PAP</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PrincipalPlaceOfBusinessOfJointOperation" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation" xlink:to="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation_lbl" xml:lang="en-US">Principal place of business of joint operation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation_lbl" xml:lang="en-US">Geographic area of operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointOperation_lbl" xml:lang="en-US">Geographic area of operations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Vmm29ContractMember" xlink:label="ec_Vmm29ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Vmm29ContractMember" xlink:to="ec_Vmm29ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Vmm29ContractMember_lbl" xml:lang="en-US">This member stands for VMM29 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Vmm29ContractMember_lbl" xml:lang="en-US">VMM29 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Vmm29ContractMember_lbl" xml:lang="en-US">VMM29</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Cr2ContractMember" xlink:label="ec_Cr2ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Cr2ContractMember" xlink:to="ec_Cr2ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Cr2ContractMember_lbl" xml:lang="en-US">This member stands for CR2 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Cr2ContractMember_lbl" xml:lang="en-US">CR2 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Cr2ContractMember_lbl" xml:lang="en-US">CR2</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_C62ContractMember" xlink:label="ec_C62ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_C62ContractMember" xlink:to="ec_C62ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_C62ContractMember_lbl" xml:lang="en-US">This member stands for C62 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_C62ContractMember_lbl" xml:lang="en-US">C62 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_C62ContractMember_lbl" xml:lang="en-US">C62</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Vmm32ContractMember" xlink:label="ec_Vmm32ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Vmm32ContractMember" xlink:to="ec_Vmm32ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Vmm32ContractMember_lbl" xml:lang="en-US">This member stands for VMM32 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Vmm32ContractMember_lbl" xml:lang="en-US">VMM32 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Vmm32ContractMember_lbl" xml:lang="en-US">VMM32</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CatleyaContractMember" xlink:label="ec_CatleyaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CatleyaContractMember" xlink:to="ec_CatleyaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CatleyaContractMember_lbl" xml:lang="en-US">This member stands for Catleya Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CatleyaContractMember_lbl" xml:lang="en-US">Catleya Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CatleyaContractMember_lbl" xml:lang="en-US">Catleya</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CardonContractMember" xlink:label="ec_CardonContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CardonContractMember" xlink:to="ec_CardonContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CardonContractMember_lbl" xml:lang="en-US">This member stands for Cardon Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CardonContractMember_lbl" xml:lang="en-US">Cardon Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CardonContractMember_lbl" xml:lang="en-US">Cardon</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_Orc401Crc200401ContractMember" xlink:label="ec_Orc401Crc200401ContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_Orc401Crc200401ContractMember" xlink:to="ec_Orc401Crc200401ContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_Orc401Crc200401ContractMember_lbl" xml:lang="en-US">The member stands for ORC401 CRC-2004-01 Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_Orc401Crc200401ContractMember_lbl" xml:lang="en-US">ORC401 CRC-2004-01 Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_Orc401Crc200401ContractMember_lbl" xml:lang="en-US">ORC401 CRC-2004-01</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OjanomContractMember" xlink:label="ec_OjanomContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OjanomContractMember" xlink:to="ec_OjanomContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OjanomContractMember_lbl" xml:lang="en-US">The member stands for OJANOM Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OjanomContractMember_lbl" xml:lang="en-US">OJANOM Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OjanomContractMember_lbl" xml:lang="en-US">OJANOM</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OjaocnContractMember" xlink:label="ec_OjaocnContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OjaocnContractMember" xlink:to="ec_OjaocnContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OjaocnContractMember_lbl" xml:lang="en-US">The member stands for OJAOCN Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OjaocnContractMember_lbl" xml:lang="en-US">OJAOCN Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OjaocnContractMember_lbl" xml:lang="en-US">OJAOCN</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OjaormContractMember" xlink:label="ec_OjaormContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OjaormContractMember" xlink:to="ec_OjaormContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OjaormContractMember_lbl" xml:lang="en-US">The member stands for OJAORM Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OjaormContractMember_lbl" xml:lang="en-US">OJAORM Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OjaormContractMember_lbl" xml:lang="en-US">OJAORM</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OjasumContractMember" xlink:label="ec_OjasumContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OjasumContractMember" xlink:to="ec_OjasumContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OjasumContractMember_lbl" xml:lang="en-US">The member stands for OJASUM Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OjasumContractMember_lbl" xml:lang="en-US">OJASUM Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OjasumContractMember_lbl" xml:lang="en-US">OJASUM</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaCiraInfantasContractMember" xlink:label="ec_LaCiraInfantasContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaCiraInfantasContractMember" xlink:to="ec_LaCiraInfantasContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaCiraInfantasContractMember_lbl" xml:lang="en-US">This member stands for La Cira Infantas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaCiraInfantasContractMember_lbl" xml:lang="en-US">La Cira Infantas [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaCiraInfantasContractMember_lbl" xml:lang="en-US">La Cira Infantas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TecaContractMember" xlink:label="ec_TecaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TecaContractMember" xlink:to="ec_TecaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TecaContractMember_lbl" xml:lang="en-US">This member stands for Teca Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TecaContractMember_lbl" xml:lang="en-US">Teca Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TecaContractMember_lbl" xml:lang="en-US">Teca</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoAltoMagdalenaContractMember" xlink:label="ec_OleoductoAltoMagdalenaContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoAltoMagdalenaContractMember" xlink:to="ec_OleoductoAltoMagdalenaContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OleoductoAltoMagdalenaContractMember_lbl" xml:lang="en-US">This member stands for Oleoducto Alto Magdalena Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoAltoMagdalenaContractMember_lbl" xml:lang="en-US">Oleoducto Alto Magdalena Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OleoductoAltoMagdalenaContractMember_lbl" xml:lang="en-US">Oleoducto Alto Magdalena</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RoPaezMember" xlink:label="ec_RoPaezMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RoPaezMember" xlink:to="ec_RoPaezMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RoPaezMember_lbl" xml:lang="en-US">This member stands for Ro Paez.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RoPaezMember_lbl" xml:lang="en-US">Ro Paez [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RoPaezMember_lbl" xml:lang="en-US">Ro Paez</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AsociacinGuajiraContractMember" xlink:label="ec_AsociacinGuajiraContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AsociacinGuajiraContractMember" xlink:to="ec_AsociacinGuajiraContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AsociacinGuajiraContractMember_lbl" xml:lang="en-US">This member stands for Asociacin Guajira.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AsociacinGuajiraContractMember_lbl" xml:lang="en-US">Asociacin Guajira Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AsociacinGuajiraContractMember_lbl" xml:lang="en-US">Asociacion Guajira</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AsociacinBoquernMember" xlink:label="ec_AsociacinBoquernMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AsociacinBoquernMember" xlink:to="ec_AsociacinBoquernMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AsociacinBoquernMember_lbl" xml:lang="en-US">This member stands for Asociacin Boquern.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AsociacinBoquernMember_lbl" xml:lang="en-US">Asociacin Boquern [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AsociacinBoquernMember_lbl" xml:lang="en-US">Asociacion Boqueron</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SanJacintoContractMember" xlink:label="ec_SanJacintoContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SanJacintoContractMember" xlink:to="ec_SanJacintoContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SanJacintoContractMember_lbl" xml:lang="en-US">This member stands for San Jacinto Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SanJacintoContractMember_lbl" xml:lang="en-US">San Jacinto Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SanJacintoContractMember_lbl" xml:lang="en-US">San Jacinto</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SanJacintoMandatoContractMember" xlink:label="ec_SanJacintoMandatoContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SanJacintoMandatoContractMember" xlink:to="ec_SanJacintoMandatoContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SanJacintoMandatoContractMember_lbl" xml:lang="en-US">This member stands for San Jacinto (Mandato) Contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SanJacintoMandatoContractMember_lbl" xml:lang="en-US">San Jacinto (Mandato) Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SanJacintoMandatoContractMember_lbl" xml:lang="en-US">San Jacinto (Mandato)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExxonmobilExplorationColombiaMember" xlink:label="ec_ExxonmobilExplorationColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExxonmobilExplorationColombiaMember" xlink:to="ec_ExxonmobilExplorationColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExxonmobilExplorationColombiaMember_lbl" xml:lang="en-US">This member stands for ExxonMobil Exploration Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExxonmobilExplorationColombiaMember_lbl" xml:lang="en-US">ExxonMobil Exploration Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExxonmobilExplorationColombiaMember_lbl" xml:lang="en-US">ExxonMobil Exploration Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CpvenEPCorpSucursalColombiaMember" xlink:label="ec_CpvenEPCorpSucursalColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CpvenEPCorpSucursalColombiaMember" xlink:to="ec_CpvenEPCorpSucursalColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CpvenEPCorpSucursalColombiaMember_lbl" xml:lang="en-US">This member stands for CPVEN E&amp;P Corp Sucursal Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CpvenEPCorpSucursalColombiaMember_lbl" xml:lang="en-US">CPVEN E&amp;P Corp Sucursal Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CpvenEPCorpSucursalColombiaMember_lbl" xml:lang="en-US">CPVEN E&amp;P Corp Sucursal Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RepsolExploracionColombiaSaMember" xlink:label="ec_RepsolExploracionColombiaSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RepsolExploracionColombiaSaMember" xlink:to="ec_RepsolExploracionColombiaSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RepsolExploracionColombiaSaMember_lbl" xml:lang="en-US">This member stands for Repsol Exploracion Colombia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RepsolExploracionColombiaSaMember_lbl" xml:lang="en-US">Repsol Exploracion Colombia S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RepsolExploracionColombiaSaMember_lbl" xml:lang="en-US">Repsol Exploracion Colombia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EmeraldEnergyPlcSucColombiaMember" xlink:label="ec_EmeraldEnergyPlcSucColombiaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EmeraldEnergyPlcSucColombiaMember" xlink:to="ec_EmeraldEnergyPlcSucColombiaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EmeraldEnergyPlcSucColombiaMember_lbl" xml:lang="en-US">This member stands for Emerald Energy PLC Suc. Colombia.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EmeraldEnergyPlcSucColombiaMember_lbl" xml:lang="en-US">Emerald Energy PLC Suc. Colombia [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EmeraldEnergyPlcSucColombiaMember_lbl" xml:lang="en-US">Emerald Energy PLC Suc. Colombia</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EmeraldEnergyMember" xlink:label="ec_EmeraldEnergyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EmeraldEnergyMember" xlink:to="ec_EmeraldEnergyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EmeraldEnergyMember_lbl" xml:lang="en-US">This member stands for Emerald Energy.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EmeraldEnergyMember_lbl" xml:lang="en-US">Emerald Energy [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EmeraldEnergyMember_lbl" xml:lang="en-US">Emerald Energy</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ColombiaEnergyDevelopmentCoMember" xlink:label="ec_ColombiaEnergyDevelopmentCoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ColombiaEnergyDevelopmentCoMember" xlink:to="ec_ColombiaEnergyDevelopmentCoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ColombiaEnergyDevelopmentCoMember_lbl" xml:lang="en-US">This member stands for Colombia Energy Development CO.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ColombiaEnergyDevelopmentCoMember_lbl" xml:lang="en-US">Colombia Energy Development CO [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ColombiaEnergyDevelopmentCoMember_lbl" xml:lang="en-US">Colombia Energy Development CO</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PerencoOilAndGasMember" xlink:label="ec_PerencoOilAndGasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PerencoOilAndGasMember" xlink:to="ec_PerencoOilAndGasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PerencoOilAndGasMember_lbl" xml:lang="en-US">This member stands for Perenco Oil And Gas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PerencoOilAndGasMember_lbl" xml:lang="en-US">Perenco Oil And Gas [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PerencoOilAndGasMember_lbl" xml:lang="en-US">Perenco Oil And Gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ParexResoursesColombiaLtd.Member" xlink:label="ec_ParexResoursesColombiaLtd.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ParexResoursesColombiaLtd.Member" xlink:to="ec_ParexResoursesColombiaLtd.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ParexResoursesColombiaLtd.Member_lbl" xml:lang="en-US">This member stands for Parex Resourses Colombia Ltd.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ParexResoursesColombiaLtd.Member_lbl" xml:lang="en-US">Parex Resourses Colombia Ltd. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ParexResoursesColombiaLtd.Member_lbl" xml:lang="en-US">Parex Resourses Colombia Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestInJointVentureBasic" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureBasic" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestInJointVentureBasic" xlink:to="ec_PercentageOfOwnershipInterestInJointVentureBasic_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureBasic_lbl" xml:lang="en-US">Percentage of ownership interest in joint venture basic.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureBasic_lbl" xml:lang="en-US">Percentage of Ownership Interest In Joint Venture Basic</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureBasic_lbl" xml:lang="en-US">% participation, basic</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestInJointVentureIncremental" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureIncremental" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestInJointVentureIncremental" xlink:to="ec_PercentageOfOwnershipInterestInJointVentureIncremental_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureIncremental_lbl" xml:lang="en-US">Percentage of ownership interest in joint venture incremental.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureIncremental_lbl" xml:lang="en-US">Percentage of Ownership Interest In Joint Venture Incremental</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestInJointVentureIncremental_lbl" xml:lang="en-US">% participation, incremental</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InvestmentCommitments" xlink:label="ec_InvestmentCommitments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InvestmentCommitments" xlink:to="ec_InvestmentCommitments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InvestmentCommitments_lbl" xml:lang="en-US">Amount of investment commitments.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InvestmentCommitments_lbl" xml:lang="en-US">Investment Commitments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InvestmentCommitments_lbl" xml:lang="en-US">Investment commitments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="ifrs-full_DisclosureOfOperatingSegmentsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsTable_lbl" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsAxis" xlink:label="ifrs-full_SegmentConsolidationItemsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentConsolidationItemsAxis" xlink:to="ifrs-full_SegmentConsolidationItemsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentConsolidationItemsAxis_lbl" xml:lang="en-US">Segment consolidation items [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain" xlink:label="ifrs-full_SegmentConsolidationItemsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentConsolidationItemsDomain" xlink:to="ifrs-full_SegmentConsolidationItemsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentConsolidationItemsDomain_lbl" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingSegmentsMember" xlink:label="ifrs-full_OperatingSegmentsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OperatingSegmentsMember" xlink:to="ifrs-full_OperatingSegmentsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OperatingSegmentsMember_lbl" xml:lang="en-US">Operating segments [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OperatingSegmentsMember_lbl" xml:lang="en-US">Operating segments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:to="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" xml:lang="en-US">Elimination of intersegment amounts [member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" xml:lang="en-US">Inter-segments</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PowerTransmissionAndRoadMember" xlink:label="ec_PowerTransmissionAndRoadMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PowerTransmissionAndRoadMember" xlink:to="ec_PowerTransmissionAndRoadMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PowerTransmissionAndRoadMember_lbl" xml:lang="en-US">N/A</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PowerTransmissionAndRoadMember_lbl" xml:lang="en-US">Power Transmission And Road [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_PowerTransmissionAndRoadMember_lbl" xml:lang="en-US">Energy Transmission and Toll Roads Concessions</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember" xlink:label="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember" xlink:to="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember_lbl" xml:lang="en-US">This Member stands for Concessions, electricity transport and roads.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember_lbl" xml:lang="en-US">Electric Power transmission and toll roads concessions [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ElectricPowerTransmissionAndTollRoadsConcessionsMember_lbl" xml:lang="en-US">Concessions, electricity transport and roads</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SalesByTypeAxis" xlink:label="ec_SalesByTypeAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SalesByTypeAxis" xlink:to="ec_SalesByTypeAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SalesByTypeAxis_lbl" xml:lang="en-US">Sales By Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SalesByTypeDomain" xlink:label="ec_SalesByTypeDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SalesByTypeDomain" xlink:to="ec_SalesByTypeDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SalesByTypeDomain_lbl" xml:lang="en-US">Sales By Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ThirdPartySalesMember" xlink:label="ec_ThirdPartySalesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ThirdPartySalesMember" xlink:to="ec_ThirdPartySalesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ThirdPartySalesMember_lbl" xml:lang="en-US">Third Party Sales [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ThirdPartySalesMember_lbl" xml:lang="en-US">Third party sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntersegmentSalesMember" xlink:label="ec_IntersegmentSalesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntersegmentSalesMember" xlink:to="ec_IntersegmentSalesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntersegmentSalesMember_lbl" xml:lang="en-US">Inter-Segment Sales [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IntersegmentSalesMember_lbl" xml:lang="en-US">Inter-segment sales</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xml:lang="en-US">Business segment information</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OperationAndProjectsExpenses" xlink:label="ec_OperationAndProjectsExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OperationAndProjectsExpenses" xlink:to="ec_OperationAndProjectsExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OperationAndProjectsExpenses_lbl" xml:lang="en-US">Operation and projects expenses.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OperationAndProjectsExpenses_lbl" xml:lang="en-US">Operation and projects expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OperationAndProjectsExpenses_lbl" xml:lang="en-US">Operation and projects expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OtherNetOperatingIncomeExpense" xlink:label="ec_OtherNetOperatingIncomeExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OtherNetOperatingIncomeExpense" xlink:to="ec_OtherNetOperatingIncomeExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OtherNetOperatingIncomeExpense_lbl" xml:lang="en-US">The net amount of operating income (expense) that the entity does not separately disclose in the same statement or note.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OtherNetOperatingIncomeExpense_lbl" xml:lang="en-US">Other Net Operating Income Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_OtherNetOperatingIncomeExpense_lbl" xml:lang="en-US">Other operating (expenses) income net</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinanceIncomeCostAbstract" xlink:label="ec_FinanceIncomeCostAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinanceIncomeCostAbstract" xlink:to="ec_FinanceIncomeCostAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinanceIncomeCostAbstract_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinanceIncomeCostAbstract_lbl" xml:lang="en-US">Finance income cost [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FinanceIncomeCostAbstract_lbl" xml:lang="en-US">Financial results</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SupplementaryInformationAbstract" xlink:label="ec_SupplementaryInformationAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SupplementaryInformationAbstract" xlink:to="ec_SupplementaryInformationAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SupplementaryInformationAbstract_lbl" xml:lang="en-US">Supplementary information [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_SupplementaryInformationAbstract_lbl" xml:lang="en-US">Supplementary information</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense" xlink:label="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense" xlink:to="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense_lbl" xml:lang="en-US">Adjustments for depreciation, depletion and amortisation expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Depreciation and amortisation expense; Profit (loss)]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense_lbl" xml:lang="en-US">Adjustments For Depreciation Depletion And Amortisation Expense</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AdjustmentsForDepreciationDepletionAndAmortisationExpense_lbl" xml:lang="en-US">Depreciation, depletion and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasolineAndTurboFuelMember" xlink:label="ec_GasolineAndTurboFuelMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasolineAndTurboFuelMember" xlink:to="ec_GasolineAndTurboFuelMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasolineAndTurboFuelMember_lbl" xml:lang="en-US">Gasolines</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_GasolineAndTurboFuelMember_lbl" xml:lang="en-US">Gasoline and turbo fuels</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElectricPowerTransmissionServices2Member" xlink:label="ec_ElectricPowerTransmissionServices2Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElectricPowerTransmissionServices2Member" xlink:to="ec_ElectricPowerTransmissionServices2Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElectricPowerTransmissionServices2Member_lbl" xml:lang="en-US">This Member stands for Electric power transmission.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElectricPowerTransmissionServices2Member_lbl" xml:lang="en-US">Electric Power Transmission Services</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ElectricPowerTransmissionServices2Member_lbl" xml:lang="en-US">Electric power transmission services</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FuelGasServiceMember" xlink:label="ec_FuelGasServiceMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FuelGasServiceMember" xlink:to="ec_FuelGasServiceMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FuelGasServiceMember_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FuelGasServiceMember_lbl" xml:lang="en-US">Fuel gas service [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FuelGasServiceMember_lbl" xml:lang="en-US">Fuel gas service</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrudeOilsMember" xlink:label="ec_CrudeOilsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrudeOilsMember" xlink:to="ec_CrudeOilsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrudeOilsMember_lbl" xml:lang="en-US">Crude Oil [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrudeOilsMember_lbl" xml:lang="en-US">Crude oil</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CrudeOilsMember_lbl" xml:lang="en-US">Crude oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntangiblesMember" xlink:label="ec_IntangiblesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntangiblesMember" xlink:to="ec_IntangiblesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntangiblesMember_lbl" xml:lang="en-US">Intangibles [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IntangiblesMember_lbl" xml:lang="en-US">Intangibles</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentProperty" xlink:label="ifrs-full_InvestmentProperty" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InvestmentProperty" xlink:to="ifrs-full_InvestmentProperty_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InvestmentProperty_lbl" xml:lang="en-US">Investment property</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InvestmentProperty_lbl" xml:lang="en-US">Investment property</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:to="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_lbl" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl" xml:lang="en-US">Non-adjusting events after reporting period [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_lbl" xml:lang="en-US">Non-adjusting events after reporting period [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ApplicationOfNewDecreeOnTaxesMember" xlink:label="ec_ApplicationOfNewDecreeOnTaxesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ApplicationOfNewDecreeOnTaxesMember" xlink:to="ec_ApplicationOfNewDecreeOnTaxesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ApplicationOfNewDecreeOnTaxesMember_lbl" xml:lang="en-US">Represents information pertaining to application of new decree on taxes.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ApplicationOfNewDecreeOnTaxesMember_lbl" xml:lang="en-US">Application of New Decree on Taxes [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ApplicationOfNewDecreeOnTaxesMember_lbl" xml:lang="en-US">Application of new decree on taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolShareholdersGeneralAssemblyMember" xlink:label="ec_EcopetrolShareholdersGeneralAssemblyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolShareholdersGeneralAssemblyMember" xlink:to="ec_EcopetrolShareholdersGeneralAssemblyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolShareholdersGeneralAssemblyMember_lbl" xml:lang="en-US">Represents information pertaining to Ecopetrol shareholders general assembly.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolShareholdersGeneralAssemblyMember_lbl" xml:lang="en-US">Ecopetrol Shareholders General Assembly [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolShareholdersGeneralAssemblyMember_lbl" xml:lang="en-US">Shareholders' General Assembly in Ecopetrol S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RegulatoryUpdateTariffIncreaseForTransportationMember" xlink:label="ec_RegulatoryUpdateTariffIncreaseForTransportationMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RegulatoryUpdateTariffIncreaseForTransportationMember" xlink:to="ec_RegulatoryUpdateTariffIncreaseForTransportationMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RegulatoryUpdateTariffIncreaseForTransportationMember_lbl" xml:lang="en-US">This member stands for regulatory update tariff increase for transportation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RegulatoryUpdateTariffIncreaseForTransportationMember_lbl" xml:lang="en-US">Regulatory Update, Tariff Increase for Transportation [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RegulatoryUpdateTariffIncreaseForTransportationMember_lbl" xml:lang="en-US">Regulatory update effects in Ecuador</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SettlementOfCrudeOilInvoicesThroughSharesMember" xlink:label="ec_SettlementOfCrudeOilInvoicesThroughSharesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SettlementOfCrudeOilInvoicesThroughSharesMember" xlink:to="ec_SettlementOfCrudeOilInvoicesThroughSharesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SettlementOfCrudeOilInvoicesThroughSharesMember_lbl" xml:lang="en-US">This member stands for settlement of crude oil invoices through shares.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SettlementOfCrudeOilInvoicesThroughSharesMember_lbl" xml:lang="en-US">Settlement of Crude Oil Invoices Through Shares [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SettlementOfCrudeOilInvoicesThroughSharesMember_lbl" xml:lang="en-US">Settlement of crude oil invoices through refinery shares</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StrategicRegasificationAgreementMember" xlink:label="ec_StrategicRegasificationAgreementMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StrategicRegasificationAgreementMember" xlink:to="ec_StrategicRegasificationAgreementMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StrategicRegasificationAgreementMember_lbl" xml:lang="en-US">This member stands for strategic regasification agreement.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StrategicRegasificationAgreementMember_lbl" xml:lang="en-US">Strategic Regasification Agreement [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_StrategicRegasificationAgreementMember_lbl" xml:lang="en-US">Strategic regasification agreement</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrossHoldingUnwindingMember" xlink:label="ec_CrossHoldingUnwindingMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrossHoldingUnwindingMember" xlink:to="ec_CrossHoldingUnwindingMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CrossHoldingUnwindingMember_lbl" xml:lang="en-US">This member stands for unwinding of cross-holdings in subsidiaries.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrossHoldingUnwindingMember_lbl" xml:lang="en-US">Cross-Holding Unwinding [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrossHoldingUnwindingMember_lbl" xml:lang="en-US">Cross-holding unwinding</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MajorBorrowingsMember" xlink:label="ec_MajorBorrowingsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MajorBorrowingsMember" xlink:to="ec_MajorBorrowingsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MajorBorrowingsMember_lbl" xml:lang="en-US">This member stands for major borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MajorBorrowingsMember_lbl" xml:lang="en-US">Major Borrowings [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_MajorBorrowingsMember_lbl" xml:lang="en-US">Major borrowings</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FinancingArrangementsMember" xlink:label="ec_FinancingArrangementsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FinancingArrangementsMember" xlink:to="ec_FinancingArrangementsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FinancingArrangementsMember_lbl" xml:lang="en-US">This member stands for financing arrangements</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FinancingArrangementsMember_lbl" xml:lang="en-US">Financing arrangements</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member" xlink:label="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member" xlink:to="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member_lbl" xml:lang="en-US">This member stands for acquisition of equity stake in Brava Energia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member_lbl" xml:lang="en-US">Acquisition of Equity Stake in Brava Energia S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AcquisitionOfEquityStakeInBravaEnergiaS.a.Member_lbl" xml:lang="en-US">Acquisition of equity stake in Brava Energia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BravaEnergiaS.aMember" xlink:label="ec_BravaEnergiaS.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BravaEnergiaS.aMember" xlink:to="ec_BravaEnergiaS.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BravaEnergiaS.aMember_lbl" xml:lang="en-US">This member stands for Brava Energia S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BravaEnergiaS.aMember_lbl" xml:lang="en-US">Brava Energia S.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BravaEnergiaS.aMember_lbl" xml:lang="en-US">Brava Energia S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CreditNotesWithBancoSantanderMember" xlink:label="ec_CreditNotesWithBancoSantanderMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CreditNotesWithBancoSantanderMember" xlink:to="ec_CreditNotesWithBancoSantanderMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CreditNotesWithBancoSantanderMember_lbl" xml:lang="en-US">This member stands for credit notes with Banco Santander.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CreditNotesWithBancoSantanderMember_lbl" xml:lang="en-US">Credit Notes with Banco Santander [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CreditNotesWithBancoSantanderMember_lbl" xml:lang="en-US">Credit notes with Banco Santander</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SyndicatedTermLoanFacilityMember" xlink:label="ec_SyndicatedTermLoanFacilityMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SyndicatedTermLoanFacilityMember" xlink:to="ec_SyndicatedTermLoanFacilityMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SyndicatedTermLoanFacilityMember_lbl" xml:lang="en-US">This member stands for Syndicated term loan facility.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SyndicatedTermLoanFacilityMember_lbl" xml:lang="en-US">Syndicated Term Loan Facility [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SyndicatedTermLoanFacilityMember_lbl" xml:lang="en-US">Syndicated term loan facility</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoanByMhcpResolutionNo.0652Member" xlink:label="ec_LoanByMhcpResolutionNo.0652Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoanByMhcpResolutionNo.0652Member" xlink:to="ec_LoanByMhcpResolutionNo.0652Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoanByMhcpResolutionNo.0652Member_lbl" xml:lang="en-US">Represents the borrowing arrangement authorized by the Ministry of Finance and Public Credit (MHCP) under Resolution No. 0652 dated March 20, 2024, originally executed to finance the acquisition of Ecopetrol's ownership interest in Interconexin Elctrica S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoanByMhcpResolutionNo.0652Member_lbl" xml:lang="en-US">Loan by MHCP Resolution No. 0652 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoanByMhcpResolutionNo.0652Member_lbl" xml:lang="en-US">MHCP under Resolution No. 0652</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LoanByMhcpResolutionNo.0910Member" xlink:label="ec_LoanByMhcpResolutionNo.0910Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LoanByMhcpResolutionNo.0910Member" xlink:to="ec_LoanByMhcpResolutionNo.0910Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LoanByMhcpResolutionNo.0910Member_lbl" xml:lang="en-US">Represents the borrowing arrangement authorized by the Ministry of Finance and Public Credit (MHCP) under Resolution No. 0910 dated April 25, 2025, related to an external public debt facility partially repaid as part of debt management operations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LoanByMhcpResolutionNo.0910Member_lbl" xml:lang="en-US">Loan by MHCP Resolution No. 0910 [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LoanByMhcpResolutionNo.0910Member_lbl" xml:lang="en-US">MHCP under Resolution No. 0910</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsLenderNameAxis" xlink:label="ec_IfrsLenderNameAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsLenderNameAxis" xlink:to="ec_IfrsLenderNameAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsLenderNameAxis_lbl" xml:lang="en-US">The axis of Ifrs Lender Name.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsLenderNameAxis_lbl" xml:lang="en-US">Ifrs Lender Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IfrsLenderNameMember" xlink:label="ec_IfrsLenderNameMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IfrsLenderNameMember" xlink:to="ec_IfrsLenderNameMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IfrsLenderNameMember_lbl" xml:lang="en-US">This member stands for all Ifrs Lender Name.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IfrsLenderNameMember_lbl" xml:lang="en-US">Ifrs Lender Name [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BancoBilbaoVizcayaArgentariaS.a.Member" xlink:label="ec_BancoBilbaoVizcayaArgentariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BancoBilbaoVizcayaArgentariaS.a.Member" xlink:to="ec_BancoBilbaoVizcayaArgentariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BancoBilbaoVizcayaArgentariaS.a.Member_lbl" xml:lang="en-US">This member stands for Banco Bilbao Vizcaya Argentaria, S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BancoBilbaoVizcayaArgentariaS.a.Member_lbl" xml:lang="en-US">Banco Bilbao Vizcaya Argentaria, S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BancoBilbaoVizcayaArgentariaS.a.Member_lbl" xml:lang="en-US">Banco Bilbao Vizcaya Argentaria, S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BankOfAmericaN.aMember" xlink:label="ec_BankOfAmericaN.aMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BankOfAmericaN.aMember" xlink:to="ec_BankOfAmericaN.aMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BankOfAmericaN.aMember_lbl" xml:lang="en-US">This member stands for Bank of America, N.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BankOfAmericaN.aMember_lbl" xml:lang="en-US">Bank of America, N.A [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BankOfAmericaN.aMember_lbl" xml:lang="en-US">Bank of America, N.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_JpmorganChaseBankN.a.Member" xlink:label="ec_JpmorganChaseBankN.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_JpmorganChaseBankN.a.Member" xlink:to="ec_JpmorganChaseBankN.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_JpmorganChaseBankN.a.Member_lbl" xml:lang="en-US">Represents the information pertaining to JPMorgan Chase Bank, N.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_JpmorganChaseBankN.a.Member_lbl" xml:lang="en-US">JPMorgan Chase Bank, N.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BankOfChinaLimitedPanamaBranchMember" xlink:label="ec_BankOfChinaLimitedPanamaBranchMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BankOfChinaLimitedPanamaBranchMember" xlink:to="ec_BankOfChinaLimitedPanamaBranchMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BankOfChinaLimitedPanamaBranchMember_lbl" xml:lang="en-US">This member stands for Bank of China Limited, Panama branch.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BankOfChinaLimitedPanamaBranchMember_lbl" xml:lang="en-US">Bank of China Limited, Panama Branch [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BankOfChinaLimitedPanamaBranchMember_lbl" xml:lang="en-US">Bank of China Limited, Panama branch</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" xml:lang="en-US">Subsequent and relevant events</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ApplicableSpecialTaxRate" xlink:label="ec_ApplicableSpecialTaxRate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ApplicableSpecialTaxRate" xlink:to="ec_ApplicableSpecialTaxRate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ApplicableSpecialTaxRate_lbl" xml:lang="en-US">The applicable special tax rate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ApplicableSpecialTaxRate_lbl" xml:lang="en-US">Applicable Special Tax Rate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ApplicableSpecialTaxRate_lbl" xml:lang="en-US">Applicable special tax rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SharesSettlementForCrudeOilSupplyAmount" xlink:label="ec_SharesSettlementForCrudeOilSupplyAmount" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SharesSettlementForCrudeOilSupplyAmount" xlink:to="ec_SharesSettlementForCrudeOilSupplyAmount_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SharesSettlementForCrudeOilSupplyAmount_lbl" xml:lang="en-US">The value of shares settled for crude oil supply.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SharesSettlementForCrudeOilSupplyAmount_lbl" xml:lang="en-US">Shares Settlement for Crude Oil Supply, Amount</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SharesSettlementForCrudeOilSupplyAmount_lbl" xml:lang="en-US">Issuance of share for supply of crude oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TariffForCrudeOilTransportation" xlink:label="ec_TariffForCrudeOilTransportation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TariffForCrudeOilTransportation" xlink:to="ec_TariffForCrudeOilTransportation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TariffForCrudeOilTransportation_lbl" xml:lang="en-US">The tariff for crude oil transportation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TariffForCrudeOilTransportation_lbl" xml:lang="en-US">Tariff for Crude Oil Transportation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TariffForCrudeOilTransportation_lbl" xml:lang="en-US">Increase in crude oil transportation cost per barrel</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentOfIncreaseInTariffForCrudeOilTransportation" xlink:label="ec_PercentOfIncreaseInTariffForCrudeOilTransportation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentOfIncreaseInTariffForCrudeOilTransportation" xlink:to="ec_PercentOfIncreaseInTariffForCrudeOilTransportation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentOfIncreaseInTariffForCrudeOilTransportation_lbl" xml:lang="en-US">The percentage increase in tariff for crude oil transportation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentOfIncreaseInTariffForCrudeOilTransportation_lbl" xml:lang="en-US">Percent of Increase in Tariff for Crude Oil Transportation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentOfIncreaseInTariffForCrudeOilTransportation_lbl" xml:lang="en-US">Percentage of increase in cost of crude oil transportation</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SelfGenerationCapacityInRenewableEnergies" xlink:label="ec_SelfGenerationCapacityInRenewableEnergies" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SelfGenerationCapacityInRenewableEnergies" xlink:to="ec_SelfGenerationCapacityInRenewableEnergies_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SelfGenerationCapacityInRenewableEnergies_lbl" xml:lang="en-US">Represents the self-generation capacity with renewable energies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SelfGenerationCapacityInRenewableEnergies_lbl" xml:lang="en-US">Self Generation Capacity in Renewable Energies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SelfGenerationCapacityInRenewableEnergies_lbl" xml:lang="en-US">Self generation capacity in renewable energies (in mmcfpd)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SelfGenerationExpansionCapacityInRenewableEnergies" xlink:label="ec_SelfGenerationExpansionCapacityInRenewableEnergies" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SelfGenerationExpansionCapacityInRenewableEnergies" xlink:to="ec_SelfGenerationExpansionCapacityInRenewableEnergies_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SelfGenerationExpansionCapacityInRenewableEnergies_lbl" xml:lang="en-US">Represents the self-generation expansion capacity with renewable energies.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SelfGenerationExpansionCapacityInRenewableEnergies_lbl" xml:lang="en-US">Self-Generation, Expansion Capacity in Renewable Energies</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_SelfGenerationExpansionCapacityInRenewableEnergies_lbl" xml:lang="en-US">Maximum expansion capacity in renewable energies (in mmcfpd)</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:label="ifrs-full_ProportionOfVotingRightsHeldInJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfVotingRightsHeldInJointVenture" xlink:to="ifrs-full_ProportionOfVotingRightsHeldInJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfVotingRightsHeldInJointVenture_lbl" xml:lang="en-US">Proportion of voting rights held in joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrossShareholdingUnwindingConsideration" xlink:label="ec_CrossShareholdingUnwindingConsideration" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrossShareholdingUnwindingConsideration" xlink:to="ec_CrossShareholdingUnwindingConsideration_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CrossShareholdingUnwindingConsideration_lbl" xml:lang="en-US">The amount of consideration for cross-shareholding unwinding.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrossShareholdingUnwindingConsideration_lbl" xml:lang="en-US">Cross-Shareholding Unwinding, Consideration</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrossShareholdingUnwindingConsideration_lbl" xml:lang="en-US">Cash consideration</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfInstallmentsForDebtDisbursement" xlink:label="ec_NumberOfInstallmentsForDebtDisbursement" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfInstallmentsForDebtDisbursement" xlink:to="ec_NumberOfInstallmentsForDebtDisbursement_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfInstallmentsForDebtDisbursement_lbl" xml:lang="en-US">The number of installments in which debt is to be disbursed.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfInstallmentsForDebtDisbursement_lbl" xml:lang="en-US">Number of Installments for Debt Disbursement</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfInstallmentsForDebtDisbursement_lbl" xml:lang="en-US">Number of installments for debt disbursement</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfRepaymentInstallments" xlink:label="ec_NumberOfRepaymentInstallments" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfRepaymentInstallments" xlink:to="ec_NumberOfRepaymentInstallments_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfRepaymentInstallments_lbl" xml:lang="en-US">The total number of separate payments into which a debt is divided and repaid over time until it is fully settled.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfRepaymentInstallments_lbl" xml:lang="en-US">Number of Repayment Installments</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfRepaymentInstallments_lbl" xml:lang="en-US">Number of repayment installments</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:label="ifrs-full_ProportionOfOwnershipInterestInAssociate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:to="ifrs-full_ProportionOfOwnershipInterestInAssociate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfOwnershipInterestInAssociate_lbl" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProportionOfOwnershipInterestInAssociate_lbl" xml:lang="en-US">Ownership interest, associate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NumberOfSharesAcquired" xlink:label="ec_NumberOfSharesAcquired" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NumberOfSharesAcquired" xlink:to="ec_NumberOfSharesAcquired_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NumberOfSharesAcquired_lbl" xml:lang="en-US">Number of shares acquired in business combination.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NumberOfSharesAcquired_lbl" xml:lang="en-US">Number Of Shares Acquired</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NumberOfSharesAcquired_lbl" xml:lang="en-US">Number of shares acquired</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:label="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation" xlink:to="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation_lbl" xml:lang="en-US">Amount of company's operating performance by measuring profit before financing costs, tax expenses, and non-cash accounting charges for depreciation and amortisation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation_lbl" xml:lang="en-US">Earnings Before Interest, Taxes, Depreciation, and Amortisation</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EarningsBeforeInterestTaxesDepreciationAndAmortisation_lbl" xml:lang="en-US">EBITDA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfEbitdaMargin" xlink:label="ec_PercentageOfEbitdaMargin" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfEbitdaMargin" xlink:to="ec_PercentageOfEbitdaMargin_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfEbitdaMargin_lbl" xml:lang="en-US">The percentage of EBITDA margin.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfEbitdaMargin_lbl" xml:lang="en-US">Percentage of EBITDA Margin</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfEbitdaMargin_lbl" xml:lang="en-US">Percentage of EBITDA margin</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ControlThresholdOwnershipPercentage" xlink:label="ec_ControlThresholdOwnershipPercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ControlThresholdOwnershipPercentage" xlink:to="ec_ControlThresholdOwnershipPercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ControlThresholdOwnershipPercentage_lbl" xml:lang="en-US">The minimum percentage of equity or voting share capital required for an investor, individually or together with its subsidiaries or affiliates, to obtain control over an entity, including the power to direct relevant activities, exercise majority voting rights, and/or determine financial and operating policies, as assessed in accordance with applicable IFRS standards (including IFRS 10 - Consolidated Financial Statements).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ControlThresholdOwnershipPercentage_lbl" xml:lang="en-US">Control Threshold Ownership Percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ControlThresholdOwnershipPercentage_lbl" xml:lang="en-US">Control threshold ownership percentage</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TenderOfferPricePerShare" xlink:label="ec_TenderOfferPricePerShare" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TenderOfferPricePerShare" xlink:to="ec_TenderOfferPricePerShare_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TenderOfferPricePerShare_lbl" xml:lang="en-US">Per share price of saleable stock paid or offered to be paid by acquirer in the transaction.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TenderOfferPricePerShare_lbl" xml:lang="en-US">Tender Offer, Price Per Share</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TenderOfferPricePerShare_lbl" xml:lang="en-US">Per share price of saleable stock paid or offered to be paid by acquirer</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfOwnershipInterestToBeSecured" xlink:label="ec_PercentageOfOwnershipInterestToBeSecured" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfOwnershipInterestToBeSecured" xlink:to="ec_PercentageOfOwnershipInterestToBeSecured_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfOwnershipInterestToBeSecured_lbl" xml:lang="en-US">The target proportion of total equity ownership that an acquiring party intends to obtain in a company through a transaction (such as a share purchase or tender offer), in order to achieve a specific objective-typically control.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfOwnershipInterestToBeSecured_lbl" xml:lang="en-US">Percentage Of Ownership Interest to be Secured</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfOwnershipInterestToBeSecured_lbl" xml:lang="en-US">Ownership percentage of an equity interest rate secured</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OfferPricePremiumPercentage" xlink:label="ec_OfferPricePremiumPercentage" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OfferPricePremiumPercentage" xlink:to="ec_OfferPricePremiumPercentage_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OfferPricePremiumPercentage_lbl" xml:lang="en-US">The percentage by which the offer price per share exceeds the benchmark market price of the target company's shares immediately before the announcement.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OfferPricePremiumPercentage_lbl" xml:lang="en-US">Offer Price Premium Percentage</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_OfferPricePremiumPercentage_lbl" xml:lang="en-US">Volume-weighted average price, percentage</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TradingDaysLookBackPeriod" xlink:label="ec_TradingDaysLookBackPeriod" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TradingDaysLookBackPeriod" xlink:to="ec_TradingDaysLookBackPeriod_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TradingDaysLookBackPeriod_lbl" xml:lang="en-US">The number of past trading days used to compute a reference price (like VWAP) for valuation or premium calculation.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TradingDaysLookBackPeriod_lbl" xml:lang="en-US">Trading Days Look-back Period</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TradingDaysLookBackPeriod_lbl" xml:lang="en-US">Number of past trading days</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedOilAndGasReserves" xlink:label="ec_ProvedOilAndGasReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedOilAndGasReserves" xlink:to="ec_ProvedOilAndGasReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedOilAndGasReserves_lbl" xml:lang="en-US">1P reserves are the oil and gas we are almost certain can be produced profitably with current technology and prices.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedOilAndGasReserves_lbl" xml:lang="en-US">Proved Oil and Gas Reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedOilAndGasReserves_lbl" xml:lang="en-US">1P reserves are the oil and gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AverageDailyHydrocarbonProduction" xlink:label="ec_AverageDailyHydrocarbonProduction" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AverageDailyHydrocarbonProduction" xlink:to="ec_AverageDailyHydrocarbonProduction_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AverageDailyHydrocarbonProduction_lbl" xml:lang="en-US">The average volume of hydrocarbons (oil + natural gas + natural gas liquids) produced per day over a specific period (usually a year or quarter).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AverageDailyHydrocarbonProduction_lbl" xml:lang="en-US">Average Daily Hydrocarbon Production</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_AverageDailyHydrocarbonProduction_lbl" xml:lang="en-US">Average volume of hydrocarbons</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesTable" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesTable" xlink:to="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesTable_lbl" xml:lang="en-US">Disclosure of consolidated subsidiaries, associates and joint ventures [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CenitTransporteYLogsticaSASMember" xlink:label="ec_CenitTransporteYLogsticaSASMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CenitTransporteYLogsticaSASMember" xlink:to="ec_CenitTransporteYLogsticaSASMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CenitTransporteYLogsticaSASMember_lbl" xml:lang="en-US">Cenit Transporte y Logstica SAS</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CenitTransporteYLogsticaSASMember_lbl" xml:lang="en-US">Cenit Transporte y Logistica S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolGlobalEnergySluMember" xlink:label="ec_EcopetrolGlobalEnergySluMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolGlobalEnergySluMember" xlink:to="ec_EcopetrolGlobalEnergySluMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolGlobalEnergySluMember_lbl" xml:lang="en-US">Ecopetrol Global Energy S.L.U.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OleoductoCentralSAUnitedOcensaMember" xlink:label="ec_OleoductoCentralSAUnitedOcensaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OleoductoCentralSAUnitedOcensaMember" xlink:to="ec_OleoductoCentralSAUnitedOcensaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OleoductoCentralSAUnitedOcensaMember_lbl" xml:lang="en-US">Oleoducto Central S. A. - Ocensa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HocolPetroleumLimitedHplMember" xlink:label="ec_HocolPetroleumLimitedHplMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HocolPetroleumLimitedHplMember" xlink:to="ec_HocolPetroleumLimitedHplMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HocolPetroleumLimitedHplMember_lbl" xml:lang="en-US">This Member stands for Hocol Petroleum Limited - HPL.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HocolPetroleumLimitedHplMember_lbl" xml:lang="en-US">Hocol Petroleum Limited.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolAmericaLlcMember" xlink:label="ec_EcopetrolAmericaLlcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolAmericaLlcMember" xlink:to="ec_EcopetrolAmericaLlcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolAmericaLlcMember_lbl" xml:lang="en-US">This member stands for Ecopetrol Amrica LLC.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolAmericaLlcMember_lbl" xml:lang="en-US">Ecopetrol America LLC.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HocolSaMember" xlink:label="ec_HocolSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HocolSaMember" xlink:to="ec_HocolSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HocolSaMember_lbl" xml:lang="en-US">Hocol S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolCapitalAgMember" xlink:label="ec_EcopetrolCapitalAgMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolCapitalAgMember" xlink:to="ec_EcopetrolCapitalAgMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolCapitalAgMember_lbl" xml:lang="en-US">Ecopetrol Capital AG</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BlackGoldReLtdMember" xlink:label="ec_BlackGoldReLtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BlackGoldReLtdMember" xlink:to="ec_BlackGoldReLtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BlackGoldReLtdMember_lbl" xml:lang="en-US">Black Gold Re Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AndeanChemicalsLtdMember" xlink:label="ec_AndeanChemicalsLtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AndeanChemicalsLtdMember" xlink:to="ec_AndeanChemicalsLtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AndeanChemicalsLtdMember_lbl" xml:lang="en-US">Andean Chemicals Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member" xlink:label="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member" xlink:to="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member_lbl" xml:lang="en-US">This member stands for Inversiones de Gases de Colombia S.A. - Invercolsa S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member_lbl" xml:lang="en-US">Inversiones de Gases de Colombia S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InversionesDeGasesDeColombiaS.a.InvercolsaS.a.Member_lbl" xml:lang="en-US">Inversiones de Gases de Colombia S.A. Invercolsa S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AlcanosDeColombiaS.a.E.s.p.Member" xlink:label="ec_AlcanosDeColombiaS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AlcanosDeColombiaS.a.E.s.p.Member" xlink:to="ec_AlcanosDeColombiaS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AlcanosDeColombiaS.a.E.s.p.Member_lbl" xml:lang="en-US">Represents the information pertaining to Alcanos de Colombia S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AlcanosDeColombiaS.a.E.s.p.Member_lbl" xml:lang="en-US">Alcanos de Colombia S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_MetrogasDeColombiaS.aE.s.p.Member" xlink:label="ec_MetrogasDeColombiaS.aE.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_MetrogasDeColombiaS.aE.s.p.Member" xlink:to="ec_MetrogasDeColombiaS.aE.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_MetrogasDeColombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Represents the information pertaining to Metrogas de Colombia S.A E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_MetrogasDeColombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Metrogas de Colombia S.A E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasesDelOrienteS.a.E.s.p.Member" xlink:label="ec_GasesDelOrienteS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasesDelOrienteS.a.E.s.p.Member" xlink:to="ec_GasesDelOrienteS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasesDelOrienteS.a.E.s.p.Member_lbl" xml:lang="en-US">Represents the information pertaining to Gases del Oriente S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasesDelOrienteS.a.E.s.p.Member_lbl" xml:lang="en-US">Gases del Oriente S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PromotoraDeGasesDelSurS.a.E.s.p.Member" xlink:label="ec_PromotoraDeGasesDelSurS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PromotoraDeGasesDelSurS.a.E.s.p.Member" xlink:to="ec_PromotoraDeGasesDelSurS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PromotoraDeGasesDelSurS.a.E.s.p.Member_lbl" xml:lang="en-US">Represents the information pertaining to Promotora de Gases del Sur S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PromotoraDeGasesDelSurS.a.E.s.p.Member_lbl" xml:lang="en-US">Promotora de Gases del Sur S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member" xlink:label="ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member" xlink:to="ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Represents the information pertaining to Combustibles Lquidos de Colombia S.A E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CombustiblesLquidosDeColombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Combustibles Lquidos de Colombia S.A E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolPermianLlcMember" xlink:label="ec_EcopetrolPermianLlcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolPermianLlcMember" xlink:to="ec_EcopetrolPermianLlcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolPermianLlcMember_lbl" xml:lang="en-US">This member stands for Ecopetrol Permian LLC.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolPermianLlcMember_lbl" xml:lang="en-US">Ecopetrol Permian LLC.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolOleoEGasDoBrasilLtdaMember" xlink:label="ec_EcopetrolOleoEGasDoBrasilLtdaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolOleoEGasDoBrasilLtdaMember" xlink:to="ec_EcopetrolOleoEGasDoBrasilLtdaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolOleoEGasDoBrasilLtdaMember_lbl" xml:lang="en-US">This member stands for Ecopetrol Oleo e Gas do Brasil Ltda.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolOleoEGasDoBrasilLtdaMember_lbl" xml:lang="en-US">Ecopetrol Oleo e Gas do Brasil Ltda.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolOleoEGasDoBrasilLtdaMember_lbl" xml:lang="en-US">Ecopetrol Oleo e Gas do Brasil Ltda</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsenttiaMasterbatchLtdaMember" xlink:label="ec_EsenttiaMasterbatchLtdaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsenttiaMasterbatchLtdaMember" xlink:to="ec_EsenttiaMasterbatchLtdaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsenttiaMasterbatchLtdaMember_lbl" xml:lang="en-US">The member represents Esenttia Masterbatch Ltda.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsenttiaMasterbatchLtdaMember_lbl" xml:lang="en-US">Esenttia Masterbatch Ltda.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolDelPerSAUnitedMember" xlink:label="ec_EcopetrolDelPerSAUnitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolDelPerSAUnitedMember" xlink:to="ec_EcopetrolDelPerSAUnitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolDelPerSAUnitedMember_lbl" xml:lang="en-US">Ecopetrol del Peru S. A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcpHidrocarburosDeMexicoSaDeCvMember" xlink:label="ec_EcpHidrocarburosDeMexicoSaDeCvMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcpHidrocarburosDeMexicoSaDeCvMember" xlink:to="ec_EcpHidrocarburosDeMexicoSaDeCvMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcpHidrocarburosDeMexicoSaDeCvMember_lbl" xml:lang="en-US">ECP Hidrocarburos de Mexico S.A. de C.V.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolCostaAfueraSasMember" xlink:label="ec_EcopetrolCostaAfueraSasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolCostaAfueraSasMember" xlink:to="ec_EcopetrolCostaAfueraSasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolCostaAfueraSasMember_lbl" xml:lang="en-US">Ecopetrol Costa Afuera S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsenttiaResinasDelPeruSacMember" xlink:label="ec_EsenttiaResinasDelPeruSacMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsenttiaResinasDelPeruSacMember" xlink:to="ec_EsenttiaResinasDelPeruSacMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsenttiaResinasDelPeruSacMember_lbl" xml:lang="en-US">This member stands for Esenttia Resinas del Peru SAC.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsenttiaResinasDelPeruSacMember_lbl" xml:lang="en-US">Esenttia Resinas del Peru SAC</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EsenttiaResinasDeMexicoMember" xlink:label="ec_EsenttiaResinasDeMexicoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EsenttiaResinasDeMexicoMember" xlink:to="ec_EsenttiaResinasDeMexicoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EsenttiaResinasDeMexicoMember_lbl" xml:lang="en-US">Represents information pertaining to Esenttia Resinas de Mexico.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EsenttiaResinasDeMexicoMember_lbl" xml:lang="en-US">Esenttia Resinas de Mexico [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EsenttiaResinasDeMexicoMember_lbl" xml:lang="en-US">Esenttia Resinas de Mxico</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_KalixpanServiciosTecnicosSDeRlDeCvMember" xlink:label="ec_KalixpanServiciosTecnicosSDeRlDeCvMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_KalixpanServiciosTecnicosSDeRlDeCvMember" xlink:to="ec_KalixpanServiciosTecnicosSDeRlDeCvMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_KalixpanServiciosTecnicosSDeRlDeCvMember_lbl" xml:lang="en-US">this member stands for Kalixpan Servicios Tcnicos S de RL de CV.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_KalixpanServiciosTecnicosSDeRlDeCvMember_lbl" xml:lang="en-US">Kalixpan Servicios Tecnicos S de RL de CV.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolUsTradingLlcMember" xlink:label="ec_EcopetrolUsTradingLlcMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolUsTradingLlcMember" xlink:to="ec_EcopetrolUsTradingLlcMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolUsTradingLlcMember_lbl" xml:lang="en-US">This member stands for Ecopetrol US Trading LLC.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolUsTradingLlcMember_lbl" xml:lang="en-US">Ecopetrol US Trading LLC [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EcopetrolUsTradingLlcMember_lbl" xml:lang="en-US">Ecopetrol US Trading LLC</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EconovaTechnologyAndInnovationS.l.Member" xlink:label="ec_EconovaTechnologyAndInnovationS.l.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EconovaTechnologyAndInnovationS.l.Member" xlink:to="ec_EconovaTechnologyAndInnovationS.l.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EconovaTechnologyAndInnovationS.l.Member_lbl" xml:lang="en-US">Represents information pertaining to Econova Technology and Innovation S.L.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EconovaTechnologyAndInnovationS.l.Member_lbl" xml:lang="en-US">Econova Technology and Innovation S.L. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EconovaTechnologyAndInnovationS.l.Member_lbl" xml:lang="en-US">Econova Technology &amp; innovation S.L.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolSingaporePte.LtdMember" xlink:label="ec_EcopetrolSingaporePte.LtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolSingaporePte.LtdMember" xlink:to="ec_EcopetrolSingaporePte.LtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolSingaporePte.LtdMember_lbl" xml:lang="en-US">This member stands for Ecopetrol Singapore PTE. LTD.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolSingaporePte.LtdMember_lbl" xml:lang="en-US">Ecopetrol Singapore PTE. LTD</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EcopetrolTradingAsiaPte.LtdMember" xlink:label="ec_EcopetrolTradingAsiaPte.LtdMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EcopetrolTradingAsiaPte.LtdMember" xlink:to="ec_EcopetrolTradingAsiaPte.LtdMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EcopetrolTradingAsiaPte.LtdMember_lbl" xml:lang="en-US">This member stands for Ecopetrol Trading Asia PTE. LTD.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EcopetrolTradingAsiaPte.LtdMember_lbl" xml:lang="en-US">Ecopetrol Trading Asia PTE. LTD</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member" xlink:label="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member" xlink:to="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member_lbl" xml:lang="en-US">This member stands for Parque Solar Porton del Sol S.A.S E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member_lbl" xml:lang="en-US">Parque Solar Porton del Sol S.A.S E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ParqueSolarPortonDelSolS.a.sE.s.p.Member_lbl" xml:lang="en-US">Parque Solar Porton del Sol S.A.S E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EnerfinServicesS.a.s.Member" xlink:label="ec_EnerfinServicesS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EnerfinServicesS.a.s.Member" xlink:to="ec_EnerfinServicesS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EnerfinServicesS.a.s.Member_lbl" xml:lang="en-US">This member stands for Enerfin Services S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EnerfinServicesS.a.s.Member_lbl" xml:lang="en-US">Enerfin Services S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EnerfinServicesS.a.s.Member_lbl" xml:lang="en-US">Enerfin Services S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PlantaSolarSahagunS.a.s.Member" xlink:label="ec_PlantaSolarSahagunS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PlantaSolarSahagunS.a.s.Member" xlink:to="ec_PlantaSolarSahagunS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PlantaSolarSahagunS.a.s.Member_lbl" xml:lang="en-US">This member stands for Planta Solar Sahagun S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PlantaSolarSahagunS.a.s.Member_lbl" xml:lang="en-US">Planta Solar Sahagun S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PlantaSolarSahagunS.a.s.Member_lbl" xml:lang="en-US">Planta Solar Sahagun S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElRobleSolarS.a.s.Member" xlink:label="ec_ElRobleSolarS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElRobleSolarS.a.s.Member" xlink:to="ec_ElRobleSolarS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElRobleSolarS.a.s.Member_lbl" xml:lang="en-US">This member stands for El Roble Solar S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElRobleSolarS.a.s.Member_lbl" xml:lang="en-US">El Roble Solar S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ElRobleSolarS.a.s.Member_lbl" xml:lang="en-US">El Roble Solar S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GirasolIS.a.s.Member" xlink:label="ec_GirasolIS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GirasolIS.a.s.Member" xlink:to="ec_GirasolIS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GirasolIS.a.s.Member_lbl" xml:lang="en-US">This member stands for Girasol I S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GirasolIS.a.s.Member_lbl" xml:lang="en-US">Girasol I S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GirasolIS.a.s.Member_lbl" xml:lang="en-US">Girasol I S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LaCayenaSolarS.a.s.Member" xlink:label="ec_LaCayenaSolarS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LaCayenaSolarS.a.s.Member" xlink:to="ec_LaCayenaSolarS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LaCayenaSolarS.a.s.Member_lbl" xml:lang="en-US">This member stands for La Cayena Solar S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LaCayenaSolarS.a.s.Member_lbl" xml:lang="en-US">La Cayena Solar S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LaCayenaSolarS.a.s.Member_lbl" xml:lang="en-US">La Cayena Solar S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CrdobaSolar2S.a.s.Member" xlink:label="ec_CrdobaSolar2S.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CrdobaSolar2S.a.s.Member" xlink:to="ec_CrdobaSolar2S.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CrdobaSolar2S.a.s.Member_lbl" xml:lang="en-US">This member stands for Crdoba Solar 2 S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CrdobaSolar2S.a.s.Member_lbl" xml:lang="en-US">Crdoba Solar 2 S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CrdobaSolar2S.a.s.Member_lbl" xml:lang="en-US">Crdoba Solar 2 S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems" xlink:to="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems_lbl" xml:lang="en-US">Disclosure of consolidated subsidiaries, associates and joint ventures [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DisclosureOfConsolidatedSubsidiariesAssociatesAndJointVenturesLineItems_lbl" xml:lang="en-US">Exhibit 1 - Consolidated subsidiaries, associates, and joint ventures</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfFunctionalCurrency" xlink:label="ifrs-full_DescriptionOfFunctionalCurrency" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfFunctionalCurrency" xlink:to="ifrs-full_DescriptionOfFunctionalCurrency_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfFunctionalCurrency_lbl" xml:lang="en-US">Description of functional currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfFunctionalCurrency_lbl" xml:lang="en-US">Functional currency</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfNatureOfActivityOfSubsidiary" xlink:label="ec_DescriptionOfNatureOfActivityOfSubsidiary" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfNatureOfActivityOfSubsidiary" xlink:to="ec_DescriptionOfNatureOfActivityOfSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfNatureOfActivityOfSubsidiary_lbl" xml:lang="en-US">The description of nature of activity of subsidiary.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfNatureOfActivityOfSubsidiary_lbl" xml:lang="en-US">Description of nature of activity of subsidiary</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfNatureOfActivityOfSubsidiary_lbl" xml:lang="en-US">Activity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary" xlink:to="ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary_lbl" xml:lang="en-US">Country of incorporation of subsidiary</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary_lbl" xml:lang="en-US">Country/Domicile</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary" xlink:to="ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary_lbl" xml:lang="en-US">Principal place of business of subsidiary</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary_lbl" xml:lang="en-US">Geographic area of operations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EquionEnergiaLimitedMember" xlink:label="ec_EquionEnergiaLimitedMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EquionEnergiaLimitedMember" xlink:to="ec_EquionEnergiaLimitedMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EquionEnergiaLimitedMember_lbl" xml:lang="en-US">Equion Energia Limited</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SociedadPortuariaOlefinasYDerivadosSaMember" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SociedadPortuariaOlefinasYDerivadosSaMember" xlink:to="ec_SociedadPortuariaOlefinasYDerivadosSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SociedadPortuariaOlefinasYDerivadosSaMember_lbl" xml:lang="en-US">Sociedad Portuaria Olefinas y Derivados S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfNatureOfActivityOfAssociate" xlink:label="ec_DescriptionOfNatureOfActivityOfAssociate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfNatureOfActivityOfAssociate" xlink:to="ec_DescriptionOfNatureOfActivityOfAssociate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfNatureOfActivityOfAssociate_lbl" xml:lang="en-US">The description of nature of activity of associate.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfNatureOfActivityOfAssociate_lbl" xml:lang="en-US">Description of nature of activity of associate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfNatureOfActivityOfAssociate_lbl" xml:lang="en-US">Activity, associate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DescriptionOfNatureOfActivityOfJointVenture" xlink:label="ec_DescriptionOfNatureOfActivityOfJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DescriptionOfNatureOfActivityOfJointVenture" xlink:to="ec_DescriptionOfNatureOfActivityOfJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DescriptionOfNatureOfActivityOfJointVenture_lbl" xml:lang="en-US">The description of nature of activity of joint venture.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DescriptionOfNatureOfActivityOfJointVenture_lbl" xml:lang="en-US">Description of nature of activity of joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_DescriptionOfNatureOfActivityOfJointVenture_lbl" xml:lang="en-US">Activity, joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CountryOfIncorporationOrResidenceOfAssociate" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfAssociate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CountryOfIncorporationOrResidenceOfAssociate" xlink:to="ifrs-full_CountryOfIncorporationOrResidenceOfAssociate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfAssociate_lbl" xml:lang="en-US">Country of incorporation of associate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CountryOfIncorporationOrResidenceOfAssociate_lbl" xml:lang="en-US">Country/Domicile, associate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CountryOfIncorporationOfJointVenture" xlink:label="ifrs-full_CountryOfIncorporationOfJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CountryOfIncorporationOfJointVenture" xlink:to="ifrs-full_CountryOfIncorporationOfJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CountryOfIncorporationOfJointVenture_lbl" xml:lang="en-US">Country of incorporation of joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CountryOfIncorporationOfJointVenture_lbl" xml:lang="en-US">Country/Domicile, joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PrincipalPlaceOfBusinessOfAssociate" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfAssociate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PrincipalPlaceOfBusinessOfAssociate" xlink:to="ifrs-full_PrincipalPlaceOfBusinessOfAssociate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfAssociate_lbl" xml:lang="en-US">Principal place of business of associate</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfAssociate_lbl" xml:lang="en-US">Geographic area of operations, associate</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PrincipalPlaceOfBusinessOfJointVenture" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointVenture" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PrincipalPlaceOfBusinessOfJointVenture" xlink:to="ifrs-full_PrincipalPlaceOfBusinessOfJointVenture_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointVenture_lbl" xml:lang="en-US">Principal place of business of joint venture</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PrincipalPlaceOfBusinessOfJointVenture_lbl" xml:lang="en-US">Geographic area of operations, joint venture</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_lbl" xml:lang="en-US">Disclosure of subsidiaries [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis" xlink:label="srt_ConsolidatedEntitiesAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain" xlink:label="srt_ConsolidatedEntitiesDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ConsolidatedEntitiesDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionElectricaS.a.E.s.p.Member" xlink:label="ec_InterconexionElectricaS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionElectricaS.a.E.s.p.Member" xlink:to="ec_InterconexionElectricaS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionElectricaS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for Interconexin Elctrica S.A. ESP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionElectricaS.a.E.s.p.Member_lbl" xml:lang="en-US">Interconexion Electrica S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionElectricaS.a.E.s.p.Member_lbl" xml:lang="en-US">Interconexin Elctrica S.A. ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember" xlink:label="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember" xlink:to="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember_lbl" xml:lang="en-US">This member stands for Concesin Costera-Cartagena-Barranquilla S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember_lbl" xml:lang="en-US">Concesin Costera-Cartagena-Barranquilla S.A.S [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcesinCosteraCartagenaBarranquillaS.a.sMember_lbl" xml:lang="en-US">Concesin Costera-Cartagena-Barranquilla S.A.S</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_TranselcaS.a.E.s.p.Member" xlink:label="ec_TranselcaS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_TranselcaS.a.E.s.p.Member" xlink:to="ec_TranselcaS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_TranselcaS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for Transelca S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_TranselcaS.a.E.s.p.Member_lbl" xml:lang="en-US">Transelca S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_TranselcaS.a.E.s.p.Member_lbl" xml:lang="en-US">Transelca S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternexaS.a.Member" xlink:label="ec_InternexaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternexaS.a.Member" xlink:to="ec_InternexaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternexaS.a.Member_lbl" xml:lang="en-US">This member stands for Internexa S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternexaS.a.Member_lbl" xml:lang="en-US">Internexa S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternexaS.a.Member_lbl" xml:lang="en-US">Internexa S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntercolombiaS.aE.s.p.Member" xlink:label="ec_IntercolombiaS.aE.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntercolombiaS.aE.s.p.Member" xlink:to="ec_IntercolombiaS.aE.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IntercolombiaS.aE.s.p.Member_lbl" xml:lang="en-US">This member stands for Intercolombia S.A E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntercolombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Intercolombia S.A E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IntercolombiaS.aE.s.p.Member_lbl" xml:lang="en-US">Intercolombia S.A E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member" xlink:label="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member" xlink:to="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member_lbl" xml:lang="en-US">This member stands for XM Compaa de Expertos en Mercados S.A. E.S.P.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member_lbl" xml:lang="en-US">XM Compaa de Expertos en Mercados S.A. E.S.P. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_XmCompaaDeExpertosEnMercadosS.a.E.s.p.Member_lbl" xml:lang="en-US">XM Compaa de Expertos en Mercados S.A. E.S.P.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InteiaS.A.S.Member" xlink:label="ec_InteiaS.A.S.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InteiaS.A.S.Member" xlink:to="ec_InteiaS.A.S.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InteiaS.A.S.Member_lbl" xml:lang="en-US">This member stands for Inteia S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InteiaS.A.S.Member_lbl" xml:lang="en-US">Inteia S. A. S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InteiaS.A.S.Member_lbl" xml:lang="en-US">Inteia S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntervialColombiaS.a.s.Member" xlink:label="ec_IntervialColombiaS.a.s.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntervialColombiaS.a.s.Member" xlink:to="ec_IntervialColombiaS.a.s.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IntervialColombiaS.a.s.Member_lbl" xml:lang="en-US">This member stands for Intervial Colombia S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntervialColombiaS.a.s.Member_lbl" xml:lang="en-US">Intervial Colombia S.A.S. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IntervialColombiaS.a.s.Member_lbl" xml:lang="en-US">Intervial Colombia S.A.S.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_HubDigitalDeServiciosIsaS.a.sMember" xlink:label="ec_HubDigitalDeServiciosIsaS.a.sMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_HubDigitalDeServiciosIsaS.a.sMember" xlink:to="ec_HubDigitalDeServiciosIsaS.a.sMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_HubDigitalDeServiciosIsaS.a.sMember_lbl" xml:lang="en-US">This member stands for HUB Digital de Servicios ISA S.A.S.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_HubDigitalDeServiciosIsaS.a.sMember_lbl" xml:lang="en-US">HUB Digital de Servicios ISA S.A.S [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_HubDigitalDeServiciosIsaS.a.sMember_lbl" xml:lang="en-US">HUB Digital de Servicios ISA S.A.S</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaEnergiaBrasilS.a.Member" xlink:label="ec_IsaEnergiaBrasilS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaEnergiaBrasilS.a.Member" xlink:to="ec_IsaEnergiaBrasilS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaEnergiaBrasilS.a.Member_lbl" xml:lang="en-US">This member stands for ISA Energa Brasil S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaEnergiaBrasilS.a.Member_lbl" xml:lang="en-US">ISA Energia Brasil S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_IsaEnergiaBrasilS.a.Member_lbl" xml:lang="en-US">ISA Energia Brasil S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaCapitalDoBrasilMember" xlink:label="ec_IsaCapitalDoBrasilMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaCapitalDoBrasilMember" xlink:to="ec_IsaCapitalDoBrasilMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaCapitalDoBrasilMember_lbl" xml:lang="en-US">na</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaCapitalDoBrasilMember_lbl" xml:lang="en-US">ISA Capital Do Brasil [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaCapitalDoBrasilMember_lbl" xml:lang="en-US">ISA Capital do Brasil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInvestimentosEParticipaesS.a.Member" xlink:label="ec_IsaInvestimentosEParticipaesS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInvestimentosEParticipaesS.a.Member" xlink:to="ec_IsaInvestimentosEParticipaesS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInvestimentosEParticipaesS.a.Member_lbl" xml:lang="en-US">This member stands for ISA Investimentos e Participaes S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInvestimentosEParticipaesS.a.Member_lbl" xml:lang="en-US">ISA Investimentos e Participaes S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInvestimentosEParticipaesS.a.Member_lbl" xml:lang="en-US">ISA Investimentos e Participaes S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaRiachoGrandeMember" xlink:label="ec_InterligacaoEletricaRiachoGrandeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaRiachoGrandeMember" xlink:to="ec_InterligacaoEletricaRiachoGrandeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaRiachoGrandeMember_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Riacho Grande.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaRiachoGrandeMember_lbl" xml:lang="en-US">Interligacao Eletrica Riacho Grande [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaRiachoGrandeMember_lbl" xml:lang="en-US">Interligacao Eletrica Riacho Grande</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaAguapeiS.a.Member" xlink:label="ec_InterligacaoEletricaAguapeiS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaAguapeiS.a.Member" xlink:to="ec_InterligacaoEletricaAguapeiS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaAguapeiS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Aguape S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaAguapeiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Aguapei S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaAguapeiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Aguapei S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaEvrecyS.a.Member" xlink:label="ec_InterligacaoEletricaEvrecyS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaEvrecyS.a.Member" xlink:to="ec_InterligacaoEletricaEvrecyS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaEvrecyS.a.Member_lbl" xml:lang="en-US">The information pertaining to Interligao Eltrica Evrecy S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaEvrecyS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Evrecy S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaEvrecyS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Evrecy S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaItaquereS.a.Member" xlink:label="ec_InterligacaoEletricaItaquereS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaItaquereS.a.Member" xlink:to="ec_InterligacaoEletricaItaquereS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaItaquereS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Itaquer S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaItaquereS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itaquere S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaItaquereS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itaquere S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaItaunasS.a.Member" xlink:label="ec_InterligacaoEletricaItaunasS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaItaunasS.a.Member" xlink:to="ec_InterligacaoEletricaItaunasS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaItaunasS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Itanas  S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaItaunasS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itaunas S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaItaunasS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itaunas S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaDeMinasGeraisS.a.Member" xlink:label="ec_InterligacaoEletricaDeMinasGeraisS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaDeMinasGeraisS.a.Member" xlink:to="ec_InterligacaoEletricaDeMinasGeraisS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaDeMinasGeraisS.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica de Minas Gerais S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaDeMinasGeraisS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica de Minas Gerais S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaDeMinasGeraisS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica de Minas Gerais S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaJaguar9S.a.Member" xlink:label="ec_InterligacaoEletricaJaguar9S.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaJaguar9S.a.Member" xlink:to="ec_InterligacaoEletricaJaguar9S.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaJaguar9S.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Jaguar 9 S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaJaguar9S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica JAGUAR 9 S.A.[Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InterligacaoEletricaJaguar9S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Jaguar 9 S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaNorteENordesteS.a.Member" xlink:label="ec_InterligacaoEletricaNorteENordesteS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaNorteENordesteS.a.Member" xlink:to="ec_InterligacaoEletricaNorteENordesteS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaNorteENordesteS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Norte E Nordeste S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaNorteENordesteS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Norte E Nordeste S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaNorteENordesteS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Norte E Nordeste S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaBiguacuS.a.Member" xlink:label="ec_InterligacaoEletricaBiguacuS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaBiguacuS.a.Member" xlink:to="ec_InterligacaoEletricaBiguacuS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaBiguacuS.a.Member_lbl" xml:lang="en-US">This member stands for Interligao Eltrica Biguau S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaBiguacuS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Biguacu S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaBiguacuS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Biguacu S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FundoDeInvestimentoXavantesReferenciadoDiMember" xlink:label="ec_FundoDeInvestimentoXavantesReferenciadoDiMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FundoDeInvestimentoXavantesReferenciadoDiMember" xlink:to="ec_FundoDeInvestimentoXavantesReferenciadoDiMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FundoDeInvestimentoXavantesReferenciadoDiMember_lbl" xml:lang="en-US">This member stands for Fundo de Investimento Xavantes Referenciado di.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FundoDeInvestimentoXavantesReferenciadoDiMember_lbl" xml:lang="en-US">Fundo De Investimento Xavantes Referenciado Di [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FundoDeInvestimentoXavantesReferenciadoDiMember_lbl" xml:lang="en-US">Fundo de Investimento Xavantes Referenciado di</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaSerraDoJapiS.a.Member" xlink:label="ec_InterligacaoEletricaSerraDoJapiS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaSerraDoJapiS.a.Member" xlink:to="ec_InterligacaoEletricaSerraDoJapiS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaSerraDoJapiS.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Serra do Japi S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaSerraDoJapiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Serra do Japi S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaSerraDoJapiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Serra do Japi S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaTibagiS.a.Member" xlink:label="ec_InterligacaoEletricaTibagiS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaTibagiS.a.Member" xlink:to="ec_InterligacaoEletricaTibagiS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaTibagiS.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Tibagi S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaTibagiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Tibagi S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaTibagiS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Tibagi S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaJaguar8S.a.Member" xlink:label="ec_InterligacaoEletricaJaguar8S.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaJaguar8S.a.Member" xlink:to="ec_InterligacaoEletricaJaguar8S.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaJaguar8S.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Jaguar 8 S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaJaguar8S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica JAGUAR 8 S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaJaguar8S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Jaguar 8 S.A</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaSulS.a.Member" xlink:label="ec_InterligacaoEletricaSulS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaSulS.a.Member" xlink:to="ec_InterligacaoEletricaSulS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaSulS.a.Member_lbl" xml:lang="en-US">The information pertaining to Interligao Eltrica Sul S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaSulS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Sul S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaSulS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Sul S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaJaguar6S.a.Member" xlink:label="ec_InterligacaoEletricaJaguar6S.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaJaguar6S.a.Member" xlink:to="ec_InterligacaoEletricaJaguar6S.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaJaguar6S.a.Member_lbl" xml:lang="en-US">The information pertaining to Interligao Eltrica Jaguar 6 S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaJaguar6S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica JAGUAR 6 S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaJaguar6S.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Jaguar 6 S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaItapuraS.a.Member" xlink:label="ec_InterligacaoEletricaItapuraS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaItapuraS.a.Member" xlink:to="ec_InterligacaoEletricaItapuraS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaItapuraS.a.Member_lbl" xml:lang="en-US">The information pertaining to Interligao Eltrica Itapura S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaItapuraS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itapura S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaItapuraS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Itapura S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FundoDeInvestimentoBarraBonitaRendaMember" xlink:label="ec_FundoDeInvestimentoBarraBonitaRendaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FundoDeInvestimentoBarraBonitaRendaMember" xlink:to="ec_FundoDeInvestimentoBarraBonitaRendaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FundoDeInvestimentoBarraBonitaRendaMember_lbl" xml:lang="en-US">The information pertaining to Fundo De Investimento Barra Bonita Renda.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FundoDeInvestimentoBarraBonitaRendaMember_lbl" xml:lang="en-US">Fundo De Investimento Barra Bonita Renda [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FundoDeInvestimentoBarraBonitaRendaMember_lbl" xml:lang="en-US">Fundo De Investimento Barra Bonita Renda</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember" xlink:label="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember" xlink:to="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember_lbl" xml:lang="en-US">This member stands for Fundo de Investimento Referenciado di Bandeirantes.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember_lbl" xml:lang="en-US">Fundo De Investimento Referenciado Di Bandeirantes [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FundoDeInvestimentoReferenciadoDiBandeirantesMember_lbl" xml:lang="en-US">Fundo de Investimento Referenciado di Bandeirantes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaPinheirosS.a.Member" xlink:label="ec_InterligacaoEletricaPinheirosS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaPinheirosS.a.Member" xlink:to="ec_InterligacaoEletricaPinheirosS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaPinheirosS.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Pinheiros S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaPinheirosS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Pinheiros S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaPinheirosS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Pinheiros S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FundoDeInvestimentoAssisMember" xlink:label="ec_FundoDeInvestimentoAssisMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FundoDeInvestimentoAssisMember" xlink:to="ec_FundoDeInvestimentoAssisMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FundoDeInvestimentoAssisMember_lbl" xml:lang="en-US">This member stands for Fundo de Investimento Assis.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FundoDeInvestimentoAssisMember_lbl" xml:lang="en-US">Fundo De Investimento Assis</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelMaipoSociedadConcesionariaS.a.Member" xlink:label="ec_RutaDelMaipoSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelMaipoSociedadConcesionariaS.a.Member" xlink:to="ec_RutaDelMaipoSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelMaipoSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta del Maipo Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelMaipoSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Maipo Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDelMaipoSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Maipo Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IntervialChileS.a.Member" xlink:label="ec_IntervialChileS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IntervialChileS.a.Member" xlink:to="ec_IntervialChileS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IntervialChileS.a.Member_lbl" xml:lang="en-US">This member stands for Intervial Chile S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IntervialChileS.a.Member_lbl" xml:lang="en-US">Intervial Chile S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IntervialChileS.a.Member_lbl" xml:lang="en-US">Intervial Chile S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInversionesChileVasSpaMember" xlink:label="ec_IsaInversionesChileVasSpaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInversionesChileVasSpaMember" xlink:to="ec_IsaInversionesChileVasSpaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInversionesChileVasSpaMember_lbl" xml:lang="en-US">This member stands for ISA Inversiones Chile Vas SpA.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInversionesChileVasSpaMember_lbl" xml:lang="en-US">ISA Inversiones Chile Vas SpA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInversionesChileVasSpaMember_lbl" xml:lang="en-US">ISA Inversiones Chile Vias SpA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelLoaSociedadConcesionariaS.a.Member" xlink:label="ec_RutaDelLoaSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelLoaSociedadConcesionariaS.a.Member" xlink:to="ec_RutaDelLoaSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelLoaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta del Loa Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelLoaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Loa Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDelLoaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Loa Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member" xlink:label="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member" xlink:to="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta de la Araucana Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta de la Araucania Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDeLaAraucaniaSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta de la Araucania Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInversionesCosteraChileSpaMember" xlink:label="ec_IsaInversionesCosteraChileSpaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInversionesCosteraChileSpaMember" xlink:to="ec_IsaInversionesCosteraChileSpaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInversionesCosteraChileSpaMember_lbl" xml:lang="en-US">This member stands for ISA Inversiones Costera Chile Spa.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInversionesCosteraChileSpaMember_lbl" xml:lang="en-US">ISA Inversiones Costera Chile Spa [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInversionesCosteraChileSpaMember_lbl" xml:lang="en-US">ISA Inversiones Costera Chile Spa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDeLosRiosSociedadConcesionariaS.a.Member" xlink:label="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member" xlink:to="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta de los Ros Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta de los Rios Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDeLosRiosSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta de los Rios Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaOrbitalSurSociedadConcesionariaS.a.Member" xlink:label="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member" xlink:to="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta Orbital Sur Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta Orbital Sur Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaOrbitalSurSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta Orbital Sur Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterchileS.a.Member" xlink:label="ec_InterchileS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterchileS.a.Member" xlink:to="ec_InterchileS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterchileS.a.Member_lbl" xml:lang="en-US">This member stands for Interchile S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterchileS.a.Member_lbl" xml:lang="en-US">Interchile S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterchileS.a.Member_lbl" xml:lang="en-US">Interchile S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInversionesChileMember" xlink:label="ec_IsaInversionesChileMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInversionesChileMember" xlink:to="ec_IsaInversionesChileMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInversionesChileMember_lbl" xml:lang="en-US">This member stands for ISA Inversiones Chile.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInversionesChileMember_lbl" xml:lang="en-US">ISA Inversiones Chile</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInversionesChileMember_lbl" xml:lang="en-US">ISA Inversiones Chile SpA</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelBosqueSociedadConcesionariaS.a.Member" xlink:label="ec_RutaDelBosqueSociedadConcesionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelBosqueSociedadConcesionariaS.a.Member" xlink:to="ec_RutaDelBosqueSociedadConcesionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelBosqueSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta del Bosque Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelBosqueSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Bosque Sociedad Concesionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDelBosqueSociedadConcesionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Bosque Sociedad Concesionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaInversionesToltenLtda.Member" xlink:label="ec_IsaInversionesToltenLtda.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaInversionesToltenLtda.Member" xlink:to="ec_IsaInversionesToltenLtda.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaInversionesToltenLtda.Member_lbl" xml:lang="en-US">This member stands for ISA Inversiones Tolten Ltda.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaInversionesToltenLtda.Member_lbl" xml:lang="en-US">ISA Inversiones Tolten Ltda. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaInversionesToltenLtda.Member_lbl" xml:lang="en-US">ISA Inversiones Tolten Ltda.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionesDelNorteS.a.Member" xlink:label="ec_InterconexionesDelNorteS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionesDelNorteS.a.Member" xlink:to="ec_InterconexionesDelNorteS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionesDelNorteS.a.Member_lbl" xml:lang="en-US">This member stands for Interconexiones del Norte S.A..</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionesDelNorteS.a.Member_lbl" xml:lang="en-US">Interconexiones del Norte S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionesDelNorteS.a.Member_lbl" xml:lang="en-US">Interconexiones del Norte S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionesVialesSpaMember" xlink:label="ec_InterconexionesVialesSpaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionesVialesSpaMember" xlink:to="ec_InterconexionesVialesSpaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionesVialesSpaMember_lbl" xml:lang="en-US">This member stands for Interconexiones Viales Spa.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionesVialesSpaMember_lbl" xml:lang="en-US">Interconexiones Viales Spa [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionesVialesSpaMember_lbl" xml:lang="en-US">Interconexiones Viales Spa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterconexionesElctricasQoyllurSpaMember" xlink:label="ec_InterconexionesElctricasQoyllurSpaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterconexionesElctricasQoyllurSpaMember" xlink:to="ec_InterconexionesElctricasQoyllurSpaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterconexionesElctricasQoyllurSpaMember_lbl" xml:lang="en-US">This member stands for Interconexiones Elctricas Qoyllur Spa.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterconexionesElctricasQoyllurSpaMember_lbl" xml:lang="en-US">Interconexiones Elctricas Qoyllur Spa [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterconexionesElctricasQoyllurSpaMember_lbl" xml:lang="en-US">Interconexiones Elctricas Qoyllur Spa</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConsorcioTransmantaroS.a.Member" xlink:label="ec_ConsorcioTransmantaroS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConsorcioTransmantaroS.a.Member" xlink:to="ec_ConsorcioTransmantaroS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConsorcioTransmantaroS.a.Member_lbl" xml:lang="en-US">This member stands for Consorcio Transmantaro S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConsorcioTransmantaroS.a.Member_lbl" xml:lang="en-US">Consorcio Transmantaro S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConsorcioTransmantaroS.a.Member_lbl" xml:lang="en-US">Consorcio Transmantaro S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RedDeEnergiaDelPeruMember" xlink:label="ec_RedDeEnergiaDelPeruMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RedDeEnergiaDelPeruMember" xlink:to="ec_RedDeEnergiaDelPeruMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RedDeEnergiaDelPeruMember_lbl" xml:lang="en-US">Red De Energia Del Peru [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RedDeEnergiaDelPeruMember_lbl" xml:lang="en-US">Red De Energia Del Peru [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RedDeEnergiaDelPeruMember_lbl" xml:lang="en-US">Red de Energa del Per</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaPeruMember" xlink:label="ec_IsaPeruMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaPeruMember" xlink:to="ec_IsaPeruMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaPeruMember_lbl" xml:lang="en-US">This member stands for ISA Peru.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaPeruMember_lbl" xml:lang="en-US">ISA Peru</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaPeruMember_lbl" xml:lang="en-US">ISA Peru</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternexaPeruMember" xlink:label="ec_InternexaPeruMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternexaPeruMember" xlink:to="ec_InternexaPeruMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternexaPeruMember_lbl" xml:lang="en-US">This member stands for Internexa Peru.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternexaPeruMember_lbl" xml:lang="en-US">Internexa Peru [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternexaPeruMember_lbl" xml:lang="en-US">Internexa Peru</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProyectosDeInfraestructuraDelPerS.a.c.Member" xlink:label="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member" xlink:to="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member_lbl" xml:lang="en-US">This member stands for Proyectos de Infraestructura del Per S.A.C.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member_lbl" xml:lang="en-US">Proyectos de Infraestructura del Per S.A.C. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProyectosDeInfraestructuraDelPerS.a.c.Member_lbl" xml:lang="en-US">Proyectos de Infraestructura del Per S.A.C.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelEsteSociedadConcesionariaSaMember" xlink:label="ec_RutaDelEsteSociedadConcesionariaSaMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelEsteSociedadConcesionariaSaMember" xlink:to="ec_RutaDelEsteSociedadConcesionariaSaMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelEsteSociedadConcesionariaSaMember_lbl" xml:lang="en-US">This member stands for Ruta del Este Sociedad Concesionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelEsteSociedadConcesionariaSaMember_lbl" xml:lang="en-US">Ruta del Este Sociedad Concesionaria S.A. [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_LinearSystemsReLtd.Member" xlink:label="ec_LinearSystemsReLtd.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_LinearSystemsReLtd.Member" xlink:to="ec_LinearSystemsReLtd.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_LinearSystemsReLtd.Member_lbl" xml:lang="en-US">This member stands for Linear Systems Re Ltd.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_LinearSystemsReLtd.Member_lbl" xml:lang="en-US">Linear Systems Re Ltd. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_LinearSystemsReLtd.Member_lbl" xml:lang="en-US">Linear Systems Re Ltd.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_lbl" xml:lang="en-US">Disclosure of subsidiaries [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_lbl" xml:lang="en-US">Exhibit 2 - Consolidated subsidiaries, associates, and joint ventures in Interconexion Electrica SA ESP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondOneMember" xlink:label="ec_NationalCurrencyBondOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondOneMember" xlink:to="ec_NationalCurrencyBondOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondOneMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondOneMember_lbl" xml:lang="en-US">National Currency Bond One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondOneMember_lbl" xml:lang="en-US">National currency bond one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwoMember" xlink:label="ec_NationalCurrencyBondTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwoMember" xlink:to="ec_NationalCurrencyBondTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwoMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwoMember_lbl" xml:lang="en-US">National Currency Bond Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwoMember_lbl" xml:lang="en-US">National currency bond two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondThreeMember" xlink:label="ec_NationalCurrencyBondThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondThreeMember" xlink:to="ec_NationalCurrencyBondThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondThreeMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondThreeMember_lbl" xml:lang="en-US">National Currency Bond Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondThreeMember_lbl" xml:lang="en-US">National currency bond three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondFourMember" xlink:label="ec_NationalCurrencyBondFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondFourMember" xlink:to="ec_NationalCurrencyBondFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondFourMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondFourMember_lbl" xml:lang="en-US">National Currency Bond Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondFourMember_lbl" xml:lang="en-US">National currency bond four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondFiveMember" xlink:label="ec_NationalCurrencyBondFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondFiveMember" xlink:to="ec_NationalCurrencyBondFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondFiveMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondFiveMember_lbl" xml:lang="en-US">National Currency Bond Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondFiveMember_lbl" xml:lang="en-US">National currency bond five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondSixMember" xlink:label="ec_NationalCurrencyBondSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondSixMember" xlink:to="ec_NationalCurrencyBondSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondSixMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondSixMember_lbl" xml:lang="en-US">National Currency Bond Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondSixMember_lbl" xml:lang="en-US">National currency bond six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondSevenMember" xlink:label="ec_NationalCurrencyBondSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondSevenMember" xlink:to="ec_NationalCurrencyBondSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondSevenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondSevenMember_lbl" xml:lang="en-US">National Currency Bond Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondSevenMember_lbl" xml:lang="en-US">National currency bond seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondEightMember" xlink:label="ec_NationalCurrencyBondEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondEightMember" xlink:to="ec_NationalCurrencyBondEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondEightMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondEightMember_lbl" xml:lang="en-US">National Currency Bond Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondEightMember_lbl" xml:lang="en-US">National currency bond eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondNineMember" xlink:label="ec_NationalCurrencyBondNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondNineMember" xlink:to="ec_NationalCurrencyBondNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondNineMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondNineMember_lbl" xml:lang="en-US">National Currency Bond Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondNineMember_lbl" xml:lang="en-US">National currency bond nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTenMember" xlink:label="ec_NationalCurrencyBondTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTenMember" xlink:to="ec_NationalCurrencyBondTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTenMember_lbl" xml:lang="en-US">National Currency Bond Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTenMember_lbl" xml:lang="en-US">National currency bond ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondElevenMember" xlink:label="ec_NationalCurrencyBondElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondElevenMember" xlink:to="ec_NationalCurrencyBondElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondElevenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond eleven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondElevenMember_lbl" xml:lang="en-US">National Currency Bond Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondElevenMember_lbl" xml:lang="en-US">National currency bond eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwelveMember" xlink:label="ec_NationalCurrencyBondTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwelveMember" xlink:to="ec_NationalCurrencyBondTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwelveMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twelve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwelveMember_lbl" xml:lang="en-US">National Currency Bond Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwelveMember_lbl" xml:lang="en-US">National currency bond twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondThirteenMember" xlink:label="ec_NationalCurrencyBondThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondThirteenMember" xlink:to="ec_NationalCurrencyBondThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondThirteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond thirteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondThirteenMember_lbl" xml:lang="en-US">National Currency Bond Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondThirteenMember_lbl" xml:lang="en-US">National currency bond thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondFourteenMember" xlink:label="ec_NationalCurrencyBondFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondFourteenMember" xlink:to="ec_NationalCurrencyBondFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondFourteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond fourteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondFourteenMember_lbl" xml:lang="en-US">National Currency Bond Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondFourteenMember_lbl" xml:lang="en-US">National currency bond fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondFifteenMember" xlink:label="ec_NationalCurrencyBondFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondFifteenMember" xlink:to="ec_NationalCurrencyBondFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondFifteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond fifteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondFifteenMember_lbl" xml:lang="en-US">National Currency Bond Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondFifteenMember_lbl" xml:lang="en-US">National currency bond fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondSixteenMember" xlink:label="ec_NationalCurrencyBondSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondSixteenMember" xlink:to="ec_NationalCurrencyBondSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondSixteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond sixteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondSixteenMember_lbl" xml:lang="en-US">National Currency Bond Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondSixteenMember_lbl" xml:lang="en-US">National currency bond sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondSeventeenMember" xlink:label="ec_NationalCurrencyBondSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondSeventeenMember" xlink:to="ec_NationalCurrencyBondSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondSeventeenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond seventeen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondSeventeenMember_lbl" xml:lang="en-US">National Currency Bond Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondSeventeenMember_lbl" xml:lang="en-US">National currency bond seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondEighteenMember" xlink:label="ec_NationalCurrencyBondEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondEighteenMember" xlink:to="ec_NationalCurrencyBondEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondEighteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond eighteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondEighteenMember_lbl" xml:lang="en-US">National Currency Bond Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondEighteenMember_lbl" xml:lang="en-US">National currency bond eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondNineteenMember" xlink:label="ec_NationalCurrencyBondNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondNineteenMember" xlink:to="ec_NationalCurrencyBondNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondNineteenMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond nineteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondNineteenMember_lbl" xml:lang="en-US">National Currency Bond Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondNineteenMember_lbl" xml:lang="en-US">National currency bond nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwentyMember" xlink:label="ec_NationalCurrencyBondTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwentyMember" xlink:to="ec_NationalCurrencyBondTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwentyMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twenty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwentyMember_lbl" xml:lang="en-US">National Currency Bond Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwentyMember_lbl" xml:lang="en-US">National currency bond twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwentyoneMember" xlink:label="ec_NationalCurrencyBondTwentyoneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwentyoneMember" xlink:to="ec_NationalCurrencyBondTwentyoneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwentyoneMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twenty-one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwentyoneMember_lbl" xml:lang="en-US">National Currency Bond TwentyOne [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwentyoneMember_lbl" xml:lang="en-US">National currency bond twenty-one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwentytwoMember" xlink:label="ec_NationalCurrencyBondTwentytwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwentytwoMember" xlink:to="ec_NationalCurrencyBondTwentytwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwentytwoMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twenty-two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwentytwoMember_lbl" xml:lang="en-US">National Currency Bond TwentyTwo [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwentytwoMember_lbl" xml:lang="en-US">National currency bond twenty-two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwentythreeMember" xlink:label="ec_NationalCurrencyBondTwentythreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwentythreeMember" xlink:to="ec_NationalCurrencyBondTwentythreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwentythreeMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twenty-three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwentythreeMember_lbl" xml:lang="en-US">National Currency Bond TwentyThree [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwentythreeMember_lbl" xml:lang="en-US">National currency bond twenty-three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyBondTwentyfourMember" xlink:label="ec_NationalCurrencyBondTwentyfourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyBondTwentyfourMember" xlink:to="ec_NationalCurrencyBondTwentyfourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyBondTwentyfourMember_lbl" xml:lang="en-US">Represents  the information pertaining to national currency bond twenty-four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyBondTwentyfourMember_lbl" xml:lang="en-US">National Currency Bond TwentyFour [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyBondTwentyfourMember_lbl" xml:lang="en-US">National currency bond twenty-four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondOneMember" xlink:label="ec_ForeignCurrencyBondOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondOneMember" xlink:to="ec_ForeignCurrencyBondOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondOneMember_lbl" xml:lang="en-US">Foreign Currency Bond One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondOneMember_lbl" xml:lang="en-US">Foreign Currency Bond One</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwoMember" xlink:label="ec_ForeignCurrencyBondTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwoMember" xlink:to="ec_ForeignCurrencyBondTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThreeMember" xlink:label="ec_ForeignCurrencyBondThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThreeMember" xlink:to="ec_ForeignCurrencyBondThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFourMember" xlink:label="ec_ForeignCurrencyBondFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFourMember" xlink:to="ec_ForeignCurrencyBondFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFiveMember" xlink:label="ec_ForeignCurrencyBondFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFiveMember" xlink:to="ec_ForeignCurrencyBondFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondSixMember" xlink:label="ec_ForeignCurrencyBondSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondSixMember" xlink:to="ec_ForeignCurrencyBondSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondSixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondSixMember_lbl" xml:lang="en-US">Foreign Currency Bond Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondSixMember_lbl" xml:lang="en-US">Foreign Currency Bond Six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondSevenMember" xlink:label="ec_ForeignCurrencyBondSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondSevenMember" xlink:to="ec_ForeignCurrencyBondSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondSevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondSevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondSevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondEightMember" xlink:label="ec_ForeignCurrencyBondEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondEightMember" xlink:to="ec_ForeignCurrencyBondEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondNineMember" xlink:label="ec_ForeignCurrencyBondNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondNineMember" xlink:to="ec_ForeignCurrencyBondNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTenMember" xlink:label="ec_ForeignCurrencyBondTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTenMember" xlink:to="ec_ForeignCurrencyBondTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTenMember_lbl" xml:lang="en-US">Foreign Currency Bond Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTenMember_lbl" xml:lang="en-US">Foreign Currency Bond Ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondElevenMember" xlink:label="ec_ForeignCurrencyBondElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondElevenMember" xlink:to="ec_ForeignCurrencyBondElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondElevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond eleven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondElevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondElevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwelveMember" xlink:label="ec_ForeignCurrencyBondTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwelveMember" xlink:to="ec_ForeignCurrencyBondTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwelveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twelve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwelveMember_lbl" xml:lang="en-US">Foreign Currency Bond Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwelveMember_lbl" xml:lang="en-US">Foreign Currency Bond Twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirteenMember" xlink:label="ec_ForeignCurrencyBondThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirteenMember" xlink:to="ec_ForeignCurrencyBondThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFourteenMember" xlink:label="ec_ForeignCurrencyBondFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFourteenMember" xlink:to="ec_ForeignCurrencyBondFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFourteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond fourteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFourteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFourteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFifteenMember" xlink:label="ec_ForeignCurrencyBondFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFifteenMember" xlink:to="ec_ForeignCurrencyBondFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFifteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond fifteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFifteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFifteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondSixteenMember" xlink:label="ec_ForeignCurrencyBondSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondSixteenMember" xlink:to="ec_ForeignCurrencyBondSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondSixteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond sixteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondSixteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondSixteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondSeventeenMember" xlink:label="ec_ForeignCurrencyBondSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondSeventeenMember" xlink:to="ec_ForeignCurrencyBondSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondSeventeenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond seventeen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondSeventeenMember_lbl" xml:lang="en-US">Foreign Currency Bond Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondSeventeenMember_lbl" xml:lang="en-US">Foreign Currency Bond Seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondEighteenMember" xlink:label="ec_ForeignCurrencyBondEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondEighteenMember" xlink:to="ec_ForeignCurrencyBondEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondEighteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond eighteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondEighteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondEighteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondNineteenMember" xlink:label="ec_ForeignCurrencyBondNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondNineteenMember" xlink:to="ec_ForeignCurrencyBondNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondNineteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond nineteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondNineteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondNineteenMember_lbl" xml:lang="en-US">Foreign Currency Bond Nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyMember" xlink:label="ec_ForeignCurrencyBondTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyMember" xlink:to="ec_ForeignCurrencyBondTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyOneMember" xlink:label="ec_ForeignCurrencyBondTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyOneMember" xlink:to="ec_ForeignCurrencyBondTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-One</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyTwoMember" xlink:label="ec_ForeignCurrencyBondTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyTwoMember" xlink:to="ec_ForeignCurrencyBondTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyThreeMember" xlink:label="ec_ForeignCurrencyBondTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyThreeMember" xlink:to="ec_ForeignCurrencyBondTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyFourMember" xlink:label="ec_ForeignCurrencyBondTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyFourMember" xlink:to="ec_ForeignCurrencyBondTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyFiveMember" xlink:label="ec_ForeignCurrencyBondTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyFiveMember" xlink:to="ec_ForeignCurrencyBondTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentySixMember" xlink:label="ec_ForeignCurrencyBondTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentySixMember" xlink:to="ec_ForeignCurrencyBondTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentySixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentySevenMember" xlink:label="ec_ForeignCurrencyBondTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentySevenMember" xlink:to="ec_ForeignCurrencyBondTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyEightMember" xlink:label="ec_ForeignCurrencyBondTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyEightMember" xlink:to="ec_ForeignCurrencyBondTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondTwentyNineMember" xlink:label="ec_ForeignCurrencyBondTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondTwentyNineMember" xlink:to="ec_ForeignCurrencyBondTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondTwentyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond twenty-nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondTwentyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondTwentyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Twenty-Nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyMember" xlink:label="ec_ForeignCurrencyBondThirtyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyMember" xlink:to="ec_ForeignCurrencyBondThirtyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyOneMember" xlink:label="ec_ForeignCurrencyBondThirtyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyOneMember" xlink:to="ec_ForeignCurrencyBondThirtyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-One</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyTwoMember" xlink:label="ec_ForeignCurrencyBondThirtyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyTwoMember" xlink:to="ec_ForeignCurrencyBondThirtyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyThreeMember" xlink:label="ec_ForeignCurrencyBondThirtyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyThreeMember" xlink:to="ec_ForeignCurrencyBondThirtyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyFourMember" xlink:label="ec_ForeignCurrencyBondThirtyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyFourMember" xlink:to="ec_ForeignCurrencyBondThirtyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyFiveMember" xlink:label="ec_ForeignCurrencyBondThirtyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyFiveMember" xlink:to="ec_ForeignCurrencyBondThirtyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtySixMember" xlink:label="ec_ForeignCurrencyBondThirtySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtySixMember" xlink:to="ec_ForeignCurrencyBondThirtySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtySixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtySevenMember" xlink:label="ec_ForeignCurrencyBondThirtySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtySevenMember" xlink:to="ec_ForeignCurrencyBondThirtySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyEightMember" xlink:label="ec_ForeignCurrencyBondThirtyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyEightMember" xlink:to="ec_ForeignCurrencyBondThirtyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondThirtyNineMember" xlink:label="ec_ForeignCurrencyBondThirtyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondThirtyNineMember" xlink:to="ec_ForeignCurrencyBondThirtyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondThirtyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond thirty-nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondThirtyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondThirtyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Thirty-Nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyMember" xlink:label="ec_ForeignCurrencyBondFortyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyMember" xlink:to="ec_ForeignCurrencyBondFortyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyOneMember" xlink:label="ec_ForeignCurrencyBondFortyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyOneMember" xlink:to="ec_ForeignCurrencyBondFortyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyOneMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-One</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyTwoMember" xlink:label="ec_ForeignCurrencyBondFortyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyTwoMember" xlink:to="ec_ForeignCurrencyBondFortyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyTwoMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyThreeMember" xlink:label="ec_ForeignCurrencyBondFortyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyThreeMember" xlink:to="ec_ForeignCurrencyBondFortyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyThreeMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyFourMember" xlink:label="ec_ForeignCurrencyBondFortyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyFourMember" xlink:to="ec_ForeignCurrencyBondFortyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyFourMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyFiveMember" xlink:label="ec_ForeignCurrencyBondFortyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyFiveMember" xlink:to="ec_ForeignCurrencyBondFortyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyFiveMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortySixMember" xlink:label="ec_ForeignCurrencyBondFortySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortySixMember" xlink:to="ec_ForeignCurrencyBondFortySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortySixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortySixMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortySevenMember" xlink:label="ec_ForeignCurrencyBondFortySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortySevenMember" xlink:to="ec_ForeignCurrencyBondFortySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortySevenMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyEightMember" xlink:label="ec_ForeignCurrencyBondFortyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyEightMember" xlink:to="ec_ForeignCurrencyBondFortyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyEightMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFortyNineMember" xlink:label="ec_ForeignCurrencyBondFortyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFortyNineMember" xlink:to="ec_ForeignCurrencyBondFortyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFortyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond forty-nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFortyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFortyNineMember_lbl" xml:lang="en-US">Foreign Currency Bond Forty-Nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyBondFiftyMember" xlink:label="ec_ForeignCurrencyBondFiftyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyBondFiftyMember" xlink:to="ec_ForeignCurrencyBondFiftyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyBondFiftyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency bond fifty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyBondFiftyMember_lbl" xml:lang="en-US">Foreign Currency Bond Fifty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyBondFiftyMember_lbl" xml:lang="en-US">Foreign Currency Bond Fifty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditOneMember" xlink:label="ec_NationalCurrencyCreditOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditOneMember" xlink:to="ec_NationalCurrencyCreditOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditOneMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditOneMember_lbl" xml:lang="en-US">National Currency Credit One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditOneMember_lbl" xml:lang="en-US">National currency credit one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwoMember" xlink:label="ec_NationalCurrencyCreditTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwoMember" xlink:to="ec_NationalCurrencyCreditTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwoMember_lbl" xml:lang="en-US">National Currency Credit Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwoMember_lbl" xml:lang="en-US">National currency credit two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditThreeMember" xlink:label="ec_NationalCurrencyCreditThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditThreeMember" xlink:to="ec_NationalCurrencyCreditThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditThreeMember_lbl" xml:lang="en-US">National Currency Credit Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditThreeMember_lbl" xml:lang="en-US">National currency credit three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditFourMember" xlink:label="ec_NationalCurrencyCreditFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditFourMember" xlink:to="ec_NationalCurrencyCreditFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditFourMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditFourMember_lbl" xml:lang="en-US">National Currency Credit Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditFourMember_lbl" xml:lang="en-US">National currency credit four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditFiveMember" xlink:label="ec_NationalCurrencyCreditFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditFiveMember" xlink:to="ec_NationalCurrencyCreditFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditFiveMember_lbl" xml:lang="en-US">National Currency Credit Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditFiveMember_lbl" xml:lang="en-US">National currency credit five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditSixMember" xlink:label="ec_NationalCurrencyCreditSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditSixMember" xlink:to="ec_NationalCurrencyCreditSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditSixMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditSixMember_lbl" xml:lang="en-US">National Currency Credit Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditSixMember_lbl" xml:lang="en-US">National currency credit six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditSevenMember" xlink:label="ec_NationalCurrencyCreditSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditSevenMember" xlink:to="ec_NationalCurrencyCreditSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditSevenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditSevenMember_lbl" xml:lang="en-US">National Currency Credit Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditSevenMember_lbl" xml:lang="en-US">National currency credit seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditEightMember" xlink:label="ec_NationalCurrencyCreditEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditEightMember" xlink:to="ec_NationalCurrencyCreditEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditEightMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditEightMember_lbl" xml:lang="en-US">National Currency Credit Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditEightMember_lbl" xml:lang="en-US">National currency credit eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditNineMember" xlink:label="ec_NationalCurrencyCreditNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditNineMember" xlink:to="ec_NationalCurrencyCreditNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditNineMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditNineMember_lbl" xml:lang="en-US">National Currency Credit Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditNineMember_lbl" xml:lang="en-US">National currency credit nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTenMember" xlink:label="ec_NationalCurrencyCreditTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTenMember" xlink:to="ec_NationalCurrencyCreditTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTenMember_lbl" xml:lang="en-US">National Currency Credit Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTenMember_lbl" xml:lang="en-US">National currency credit ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditElevenMember" xlink:label="ec_NationalCurrencyCreditElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditElevenMember" xlink:to="ec_NationalCurrencyCreditElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditElevenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit eleven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditElevenMember_lbl" xml:lang="en-US">National Currency Credit Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditElevenMember_lbl" xml:lang="en-US">National currency credit eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwelveMember" xlink:label="ec_NationalCurrencyCreditTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwelveMember" xlink:to="ec_NationalCurrencyCreditTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwelveMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twelve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwelveMember_lbl" xml:lang="en-US">National Currency Credit Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwelveMember_lbl" xml:lang="en-US">National currency credit twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditThirteenMember" xlink:label="ec_NationalCurrencyCreditThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditThirteenMember" xlink:to="ec_NationalCurrencyCreditThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditThirteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit thirteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditThirteenMember_lbl" xml:lang="en-US">National Currency Credit Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditThirteenMember_lbl" xml:lang="en-US">National currency credit thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditFourteenMember" xlink:label="ec_NationalCurrencyCreditFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditFourteenMember" xlink:to="ec_NationalCurrencyCreditFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditFourteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit fourteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditFourteenMember_lbl" xml:lang="en-US">National Currency Credit Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditFourteenMember_lbl" xml:lang="en-US">National currency credit fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditFifteenMember" xlink:label="ec_NationalCurrencyCreditFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditFifteenMember" xlink:to="ec_NationalCurrencyCreditFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditFifteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit fifteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditFifteenMember_lbl" xml:lang="en-US">National Currency Credit Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditFifteenMember_lbl" xml:lang="en-US">National currency credit fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditSixteenMember" xlink:label="ec_NationalCurrencyCreditSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditSixteenMember" xlink:to="ec_NationalCurrencyCreditSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditSixteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit sixteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditSixteenMember_lbl" xml:lang="en-US">National Currency Credit Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditSixteenMember_lbl" xml:lang="en-US">National currency credit sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditSeventeenMember" xlink:label="ec_NationalCurrencyCreditSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditSeventeenMember" xlink:to="ec_NationalCurrencyCreditSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit seventeen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">National Currency Credit Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">National currency credit seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditEighteenMember" xlink:label="ec_NationalCurrencyCreditEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditEighteenMember" xlink:to="ec_NationalCurrencyCreditEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditEighteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit eighteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditEighteenMember_lbl" xml:lang="en-US">National Currency Credit Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditEighteenMember_lbl" xml:lang="en-US">National currency credit eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditNineteenMember" xlink:label="ec_NationalCurrencyCreditNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditNineteenMember" xlink:to="ec_NationalCurrencyCreditNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditNineteenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit nineteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditNineteenMember_lbl" xml:lang="en-US">National Currency Credit Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditNineteenMember_lbl" xml:lang="en-US">National currency credit nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyMember" xlink:label="ec_NationalCurrencyCreditTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyMember" xlink:to="ec_NationalCurrencyCreditTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twenty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyMember_lbl" xml:lang="en-US">National Currency Credit Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyMember_lbl" xml:lang="en-US">National currency credit twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyOneMember" xlink:label="ec_NationalCurrencyCreditTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyOneMember" xlink:to="ec_NationalCurrencyCreditTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentyone.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">National Currency Credit Twenty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">National currency credit twenty-one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyTwoMember" xlink:label="ec_NationalCurrencyCreditTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyTwoMember" xlink:to="ec_NationalCurrencyCreditTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentytwo.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">National currency credit twenty-two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyThreeMember" xlink:label="ec_NationalCurrencyCreditTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyThreeMember" xlink:to="ec_NationalCurrencyCreditTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentythree.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">National currency credit twenty-three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyFourMember" xlink:label="ec_NationalCurrencyCreditTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyFourMember" xlink:to="ec_NationalCurrencyCreditTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentyfour.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">National currency credit twenty-four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyFiveMember" xlink:label="ec_NationalCurrencyCreditTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyFiveMember" xlink:to="ec_NationalCurrencyCreditTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentyfive.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">National currency credit twenty-five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentySixMember" xlink:label="ec_NationalCurrencyCreditTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentySixMember" xlink:to="ec_NationalCurrencyCreditTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentysix.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">National currency credit twenty-six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentySevenMember" xlink:label="ec_NationalCurrencyCreditTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentySevenMember" xlink:to="ec_NationalCurrencyCreditTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentyseven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">National currency credit twenty-seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NationalCurrencyCreditTwentyEightMember" xlink:label="ec_NationalCurrencyCreditTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NationalCurrencyCreditTwentyEightMember" xlink:to="ec_NationalCurrencyCreditTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NationalCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to national currency credit twentyeight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NationalCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">National Currency Credit Twenty-Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NationalCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">National currency credit twenty-eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditOneMember" xlink:label="ec_ForeignCurrencyCreditOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditOneMember" xlink:to="ec_ForeignCurrencyCreditOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditOneMember_lbl" xml:lang="en-US">Foreign Currency Credit One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditOneMember_lbl" xml:lang="en-US">Foreign currency credit one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwoMember" xlink:label="ec_ForeignCurrencyCreditTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwoMember" xlink:to="ec_ForeignCurrencyCreditTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwoMember_lbl" xml:lang="en-US">Foreign Currency Credit Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwoMember_lbl" xml:lang="en-US">Foreign currency credit two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThreeMember" xlink:label="ec_ForeignCurrencyCreditThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThreeMember" xlink:to="ec_ForeignCurrencyCreditThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThreeMember_lbl" xml:lang="en-US">Foreign Currency Credit Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThreeMember_lbl" xml:lang="en-US">Foreign currency credit three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditFourMember" xlink:label="ec_ForeignCurrencyCreditFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditFourMember" xlink:to="ec_ForeignCurrencyCreditFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditFourMember_lbl" xml:lang="en-US">Foreign Currency Credit Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditFourMember_lbl" xml:lang="en-US">Foreign currency credit four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditFiveMember" xlink:label="ec_ForeignCurrencyCreditFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditFiveMember" xlink:to="ec_ForeignCurrencyCreditFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditFiveMember_lbl" xml:lang="en-US">Foreign Currency Credit Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditFiveMember_lbl" xml:lang="en-US">Foreign currency credit five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditSixMember" xlink:label="ec_ForeignCurrencyCreditSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditSixMember" xlink:to="ec_ForeignCurrencyCreditSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditSixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditSixMember_lbl" xml:lang="en-US">Foreign Currency Credit Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditSixMember_lbl" xml:lang="en-US">Foreign currency credit six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditSevenMember" xlink:label="ec_ForeignCurrencyCreditSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditSevenMember" xlink:to="ec_ForeignCurrencyCreditSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditSevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditSevenMember_lbl" xml:lang="en-US">Foreign Currency Credit Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditSevenMember_lbl" xml:lang="en-US">Foreign currency credit seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditEightMember" xlink:label="ec_ForeignCurrencyCreditEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditEightMember" xlink:to="ec_ForeignCurrencyCreditEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditEightMember_lbl" xml:lang="en-US">Foreign Currency Credit Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditEightMember_lbl" xml:lang="en-US">Foreign currency credit eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditNineMember" xlink:label="ec_ForeignCurrencyCreditNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditNineMember" xlink:to="ec_ForeignCurrencyCreditNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditNineMember_lbl" xml:lang="en-US">Foreign Currency Credit Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditNineMember_lbl" xml:lang="en-US">Foreign currency credit nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTenMember" xlink:label="ec_ForeignCurrencyCreditTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTenMember" xlink:to="ec_ForeignCurrencyCreditTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTenMember_lbl" xml:lang="en-US">Foreign Currency Credit Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTenMember_lbl" xml:lang="en-US">Foreign currency credit ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditElevenMember" xlink:label="ec_ForeignCurrencyCreditElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditElevenMember" xlink:to="ec_ForeignCurrencyCreditElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditElevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit eleven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditElevenMember_lbl" xml:lang="en-US">Foreign Currency Credit Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditElevenMember_lbl" xml:lang="en-US">Foreign currency credit eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwelveMember" xlink:label="ec_ForeignCurrencyCreditTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwelveMember" xlink:to="ec_ForeignCurrencyCreditTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwelveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twelve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwelveMember_lbl" xml:lang="en-US">Foreign Currency Credit Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwelveMember_lbl" xml:lang="en-US">Foreign currency credit twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirteenMember" xlink:label="ec_ForeignCurrencyCreditThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirteenMember" xlink:to="ec_ForeignCurrencyCreditThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirteenMember_lbl" xml:lang="en-US">Foreign currency credit thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditFourteenMember" xlink:label="ec_ForeignCurrencyCreditFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditFourteenMember" xlink:to="ec_ForeignCurrencyCreditFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditFourteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit fourteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditFourteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditFourteenMember_lbl" xml:lang="en-US">Foreign currency credit fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditFifteenMember" xlink:label="ec_ForeignCurrencyCreditFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditFifteenMember" xlink:to="ec_ForeignCurrencyCreditFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditFifteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit fifteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditFifteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditFifteenMember_lbl" xml:lang="en-US">Foreign currency credit fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditSixteenMember" xlink:label="ec_ForeignCurrencyCreditSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditSixteenMember" xlink:to="ec_ForeignCurrencyCreditSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditSixteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit sixteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditSixteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditSixteenMember_lbl" xml:lang="en-US">Foreign currency credit sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditSeventeenMember" xlink:label="ec_ForeignCurrencyCreditSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditSeventeenMember" xlink:to="ec_ForeignCurrencyCreditSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit seventeen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">Foreign Currency Credit Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditSeventeenMember_lbl" xml:lang="en-US">Foreign currency credit seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditEighteenMember" xlink:label="ec_ForeignCurrencyCreditEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditEighteenMember" xlink:to="ec_ForeignCurrencyCreditEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditEighteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit eighteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditEighteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditEighteenMember_lbl" xml:lang="en-US">Foreign currency credit eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditNineteenMember" xlink:label="ec_ForeignCurrencyCreditNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditNineteenMember" xlink:to="ec_ForeignCurrencyCreditNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditNineteenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit nineteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditNineteenMember_lbl" xml:lang="en-US">Foreign Currency Credit Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditNineteenMember_lbl" xml:lang="en-US">Foreign currency credit nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyMember" xlink:label="ec_ForeignCurrencyCreditTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyMember" xlink:to="ec_ForeignCurrencyCreditTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twenty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyMember_lbl" xml:lang="en-US">Foreign currency credit twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyOneMember" xlink:label="ec_ForeignCurrencyCreditTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyOneMember" xlink:to="ec_ForeignCurrencyCreditTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentyone.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyOneMember_lbl" xml:lang="en-US">Foreign currency credit twenty-one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyTwoMember" xlink:label="ec_ForeignCurrencyCreditTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyTwoMember" xlink:to="ec_ForeignCurrencyCreditTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentytwo.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyTwoMember_lbl" xml:lang="en-US">Foreign currency credit twenty-two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyThreeMember" xlink:label="ec_ForeignCurrencyCreditTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyThreeMember" xlink:to="ec_ForeignCurrencyCreditTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentythree.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyThreeMember_lbl" xml:lang="en-US">Foreign currency credit twenty-three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyFourMember" xlink:label="ec_ForeignCurrencyCreditTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyFourMember" xlink:to="ec_ForeignCurrencyCreditTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentyfour.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyFourMember_lbl" xml:lang="en-US">Foreign currency credit twenty-four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyFiveMember" xlink:label="ec_ForeignCurrencyCreditTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyFiveMember" xlink:to="ec_ForeignCurrencyCreditTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentyfive.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyFiveMember_lbl" xml:lang="en-US">Foreign currency credit twenty-five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentySixMember" xlink:label="ec_ForeignCurrencyCreditTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentySixMember" xlink:to="ec_ForeignCurrencyCreditTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentysix.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentySixMember_lbl" xml:lang="en-US">Foreign currency credit twenty-six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentySevenMember" xlink:label="ec_ForeignCurrencyCreditTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentySevenMember" xlink:to="ec_ForeignCurrencyCreditTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentyseven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentySevenMember_lbl" xml:lang="en-US">Foreign currency credit twenty-seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyEightMember" xlink:label="ec_ForeignCurrencyCreditTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyEightMember" xlink:to="ec_ForeignCurrencyCreditTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentyeight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyEightMember_lbl" xml:lang="en-US">Foreign currency credit twenty-eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditTwentyNineMember" xlink:label="ec_ForeignCurrencyCreditTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditTwentyNineMember" xlink:to="ec_ForeignCurrencyCreditTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditTwentyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit twentynine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditTwentyNineMember_lbl" xml:lang="en-US">Foreign Currency Credit Twenty-Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditTwentyNineMember_lbl" xml:lang="en-US">Foreign currency credit twenty-nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyMember" xlink:label="ec_ForeignCurrencyCreditThirtyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyMember" xlink:to="ec_ForeignCurrencyCreditThirtyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyMember_lbl" xml:lang="en-US">Foreign currency credit thirty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyOneMember" xlink:label="ec_ForeignCurrencyCreditThirtyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyOneMember" xlink:to="ec_ForeignCurrencyCreditThirtyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirtyone.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyOneMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty-One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyOneMember_lbl" xml:lang="en-US">Foreign currency credit thirty-one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyTwoMember" xlink:label="ec_ForeignCurrencyCreditThirtyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyTwoMember" xlink:to="ec_ForeignCurrencyCreditThirtyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirtytwo.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyTwoMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty-Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyTwoMember_lbl" xml:lang="en-US">Foreign currency credit thirty-two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyThreeMember" xlink:label="ec_ForeignCurrencyCreditThirtyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyThreeMember" xlink:to="ec_ForeignCurrencyCreditThirtyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirtythree.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyThreeMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty-Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyThreeMember_lbl" xml:lang="en-US">Foreign currency credit thirty-three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyFourMember" xlink:label="ec_ForeignCurrencyCreditThirtyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyFourMember" xlink:to="ec_ForeignCurrencyCreditThirtyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirtyfour.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyFourMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty-Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyFourMember_lbl" xml:lang="en-US">Foreign currency credit thirty-four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ForeignCurrencyCreditThirtyFiveMember" xlink:label="ec_ForeignCurrencyCreditThirtyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ForeignCurrencyCreditThirtyFiveMember" xlink:to="ec_ForeignCurrencyCreditThirtyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ForeignCurrencyCreditThirtyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to foreign currency credit thirtyfive.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ForeignCurrencyCreditThirtyFiveMember_lbl" xml:lang="en-US">Foreign Currency Credit Thirty-Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ForeignCurrencyCreditThirtyFiveMember_lbl" xml:lang="en-US">Foreign currency credit thirty-five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyOneMember" xlink:label="ec_BondsDomesticCurrencyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyOneMember" xlink:to="ec_BondsDomesticCurrencyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyOneMember_lbl" xml:lang="en-US">Bonds, domestic currency One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyOneMember_lbl" xml:lang="en-US">Bonds domestic currency One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyOneMember_lbl" xml:lang="en-US">Bonds, domestic currency one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwoMember" xlink:label="ec_BondsDomesticCurrencyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwoMember" xlink:to="ec_BondsDomesticCurrencyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwoMember_lbl" xml:lang="en-US">Bonds domestic currency Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwoMember_lbl" xml:lang="en-US">Bonds, domestic currency two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyThreeMember" xlink:label="ec_BondsDomesticCurrencyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyThreeMember" xlink:to="ec_BondsDomesticCurrencyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyThreeMember_lbl" xml:lang="en-US">Bonds domestic currency Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyThreeMember_lbl" xml:lang="en-US">Bonds, domestic currency three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyFourMember" xlink:label="ec_BondsDomesticCurrencyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyFourMember" xlink:to="ec_BondsDomesticCurrencyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyFourMember_lbl" xml:lang="en-US">Bonds domestic currency Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyFourMember_lbl" xml:lang="en-US">Bonds, domestic currency four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyFiveMember" xlink:label="ec_BondsDomesticCurrencyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyFiveMember" xlink:to="ec_BondsDomesticCurrencyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyFiveMember_lbl" xml:lang="en-US">Bonds domestic currency Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyFiveMember_lbl" xml:lang="en-US">Bonds, domestic currency five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencySixMember" xlink:label="ec_BondsDomesticCurrencySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencySixMember" xlink:to="ec_BondsDomesticCurrencySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencySixMember_lbl" xml:lang="en-US">Bonds domestic currency Six [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencySixMember_lbl" xml:lang="en-US">Bonds domestic currency Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencySixMember_lbl" xml:lang="en-US">Bonds, domestic currency six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencySevenMember" xlink:label="ec_BondsDomesticCurrencySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencySevenMember" xlink:to="ec_BondsDomesticCurrencySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencySevenMember_lbl" xml:lang="en-US">Bonds domestic currency Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencySevenMember_lbl" xml:lang="en-US">Bonds domestic currency Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencySevenMember_lbl" xml:lang="en-US">Bonds, domestic currency seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyEightMember" xlink:label="ec_BondsDomesticCurrencyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyEightMember" xlink:to="ec_BondsDomesticCurrencyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyEightMember_lbl" xml:lang="en-US">Bonds domestic currency Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyEightMember_lbl" xml:lang="en-US">Bonds domestic currency Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyEightMember_lbl" xml:lang="en-US">Bonds, domestic currency eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyNineMember" xlink:label="ec_BondsDomesticCurrencyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyNineMember" xlink:to="ec_BondsDomesticCurrencyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyNineMember_lbl" xml:lang="en-US">Bonds domestic currency Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyNineMember_lbl" xml:lang="en-US">Bonds domestic currency Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyNineMember_lbl" xml:lang="en-US">Bonds, domestic currency nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTenMember" xlink:label="ec_BondsDomesticCurrencyTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTenMember" xlink:to="ec_BondsDomesticCurrencyTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTenMember_lbl" xml:lang="en-US">Bonds domestic currency Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTenMember_lbl" xml:lang="en-US">Bonds domestic currency Ten</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTenMember_lbl" xml:lang="en-US">Bonds, domestic currency ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyElevenMember" xlink:label="ec_BondsDomesticCurrencyElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyElevenMember" xlink:to="ec_BondsDomesticCurrencyElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyElevenMember_lbl" xml:lang="en-US">Bonds domestic currency Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyElevenMember_lbl" xml:lang="en-US">Bonds domestic currency Eleven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyElevenMember_lbl" xml:lang="en-US">Bonds, domestic currency eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwelveMember" xlink:label="ec_BondsDomesticCurrencyTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwelveMember" xlink:to="ec_BondsDomesticCurrencyTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds domestic currency Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds domestic currency Twelve</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds, domestic currency twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyThirteenMember" xlink:label="ec_BondsDomesticCurrencyThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyThirteenMember" xlink:to="ec_BondsDomesticCurrencyThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds domestic currency Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds domestic currency Thirteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds, domestic currency thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyFourteenMember" xlink:label="ec_BondsDomesticCurrencyFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyFourteenMember" xlink:to="ec_BondsDomesticCurrencyFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds domestic currency fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds domestic currency fourteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds, domestic currency fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyFifteenMember" xlink:label="ec_BondsDomesticCurrencyFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyFifteenMember" xlink:to="ec_BondsDomesticCurrencyFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds domestic currency Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds domestic currency Fifteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds, domestic currency fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencySixteenMember" xlink:label="ec_BondsDomesticCurrencySixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencySixteenMember" xlink:to="ec_BondsDomesticCurrencySixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencySixteenMember_lbl" xml:lang="en-US">Bonds domestic currency Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencySixteenMember_lbl" xml:lang="en-US">Bonds domestic currency Sixteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencySixteenMember_lbl" xml:lang="en-US">Bonds, domestic currency sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencySeventeenMember" xlink:label="ec_BondsDomesticCurrencySeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencySeventeenMember" xlink:to="ec_BondsDomesticCurrencySeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds domestic currency Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds domestic currency Seventeen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds, domestic currency seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyEighteenMember" xlink:label="ec_BondsDomesticCurrencyEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyEighteenMember" xlink:to="ec_BondsDomesticCurrencyEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds domestic currency Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds domestic currency Eighteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds, domestic currency eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyNineteenMember" xlink:label="ec_BondsDomesticCurrencyNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyNineteenMember" xlink:to="ec_BondsDomesticCurrencyNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds domestic currency Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds domestic currency Nineteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds, domestic currency nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyMember" xlink:label="ec_BondsDomesticCurrencyTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyMember" xlink:to="ec_BondsDomesticCurrencyTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyOneMember" xlink:label="ec_BondsDomesticCurrencyTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyOneMember" xlink:to="ec_BondsDomesticCurrencyTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty One [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyTwoMember" xlink:label="ec_BondsDomesticCurrencyTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyTwoMember" xlink:to="ec_BondsDomesticCurrencyTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Two [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyThreeMember" xlink:label="ec_BondsDomesticCurrencyTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyThreeMember" xlink:to="ec_BondsDomesticCurrencyTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Three [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyFourMember" xlink:label="ec_BondsDomesticCurrencyTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyFourMember" xlink:to="ec_BondsDomesticCurrencyTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Four [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyFiveMember" xlink:label="ec_BondsDomesticCurrencyTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyFiveMember" xlink:to="ec_BondsDomesticCurrencyTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Five [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentySixMember" xlink:label="ec_BondsDomesticCurrencyTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentySixMember" xlink:to="ec_BondsDomesticCurrencyTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Six [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentySevenMember" xlink:label="ec_BondsDomesticCurrencyTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentySevenMember" xlink:to="ec_BondsDomesticCurrencyTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Seven [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyEightMember" xlink:label="ec_BondsDomesticCurrencyTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyEightMember" xlink:to="ec_BondsDomesticCurrencyTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency twenty eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyEightMember_lbl" xml:lang="en-US">Bonds domestic currency Twenty Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyEightMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsDomesticCurrencyTwentyNineMember" xlink:label="ec_BondsDomesticCurrencyTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsDomesticCurrencyTwentyNineMember" xlink:to="ec_BondsDomesticCurrencyTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsDomesticCurrencyTwentyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, domestic currency twenty nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsDomesticCurrencyTwentyNineMember_lbl" xml:lang="en-US">Bonds Domestic Currency Twenty Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsDomesticCurrencyTwentyNineMember_lbl" xml:lang="en-US">Bonds, domestic currency twenty nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyOneMember" xlink:label="ec_BondsForeignCurrencyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyOneMember" xlink:to="ec_BondsForeignCurrencyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyOneMember_lbl" xml:lang="en-US">Bonds, foreign currency one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwoMember" xlink:label="ec_BondsForeignCurrencyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwoMember" xlink:to="ec_BondsForeignCurrencyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwoMember_lbl" xml:lang="en-US">Bonds, foreign currency two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThreeMember" xlink:label="ec_BondsForeignCurrencyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThreeMember" xlink:to="ec_BondsForeignCurrencyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThreeMember_lbl" xml:lang="en-US">Bonds, foreign currency three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFourMember" xlink:label="ec_BondsForeignCurrencyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFourMember" xlink:to="ec_BondsForeignCurrencyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFourMember_lbl" xml:lang="en-US">Bonds Foreign currency Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFourMember_lbl" xml:lang="en-US">Bonds, foreign currency four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFiveMember" xlink:label="ec_BondsForeignCurrencyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFiveMember" xlink:to="ec_BondsForeignCurrencyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFiveMember_lbl" xml:lang="en-US">Bonds Foreign currency Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFiveMember_lbl" xml:lang="en-US">Bonds, foreign currency five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencySixMember" xlink:label="ec_BondsForeignCurrencySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencySixMember" xlink:to="ec_BondsForeignCurrencySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencySixMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencySixMember_lbl" xml:lang="en-US">Bonds Foreign currency Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencySixMember_lbl" xml:lang="en-US">Bonds, foreign currency six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencySevenMember" xlink:label="ec_BondsForeignCurrencySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencySevenMember" xlink:to="ec_BondsForeignCurrencySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencySevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencySevenMember_lbl" xml:lang="en-US">Bonds, foreign currency seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyEightMember" xlink:label="ec_BondsForeignCurrencyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyEightMember" xlink:to="ec_BondsForeignCurrencyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyEightMember_lbl" xml:lang="en-US">n/a</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyEightMember_lbl" xml:lang="en-US">Bonds Foreign currency Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyEightMember_lbl" xml:lang="en-US">Bonds, foreign currency eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyNineMember" xlink:label="ec_BondsForeignCurrencyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyNineMember" xlink:to="ec_BondsForeignCurrencyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyNineMember_lbl" xml:lang="en-US">Represents Bonds foreign currency nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyNineMember_lbl" xml:lang="en-US">Bonds Foreign currency Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyNineMember_lbl" xml:lang="en-US">Bonds, foreign currency nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTenMember" xlink:label="ec_BondsForeignCurrencyTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTenMember" xlink:to="ec_BondsForeignCurrencyTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTenMember_lbl" xml:lang="en-US">Represents Bonds foreign currency ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTenMember_lbl" xml:lang="en-US">Bonds Foreign currency Ten</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTenMember_lbl" xml:lang="en-US">Bonds, foreign currency ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyElevenMember" xlink:label="ec_BondsForeignCurrencyElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyElevenMember" xlink:to="ec_BondsForeignCurrencyElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyElevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyElevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Eleven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyElevenMember_lbl" xml:lang="en-US">Bonds, foreign currency eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwelveMember" xlink:label="ec_BondsForeignCurrencyTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwelveMember" xlink:to="ec_BondsForeignCurrencyTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds Foreign currency Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds Foreign currency Twelve {Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwelveMember_lbl" xml:lang="en-US">Bonds, foreign currency twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirteenMember" xlink:label="ec_BondsForeignCurrencyThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirteenMember" xlink:to="ec_BondsForeignCurrencyThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirteenMember_lbl" xml:lang="en-US">Bonds, foreign currency thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFourteenMember" xlink:label="ec_BondsForeignCurrencyFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFourteenMember" xlink:to="ec_BondsForeignCurrencyFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Fourteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFourteenMember_lbl" xml:lang="en-US">Bonds, foreign currency fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFifteenMember" xlink:label="ec_BondsForeignCurrencyFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFifteenMember" xlink:to="ec_BondsForeignCurrencyFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Fifteen  [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Fifteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFifteenMember_lbl" xml:lang="en-US">Bonds, foreign currency fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencySixteenMember" xlink:label="ec_BondsForeignCurrencySixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencySixteenMember" xlink:to="ec_BondsForeignCurrencySixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencySixteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencySixteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Sixteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencySixteenMember_lbl" xml:lang="en-US">Bonds, foreign currency sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencySeventeenMember" xlink:label="ec_BondsForeignCurrencySeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencySeventeenMember" xlink:to="ec_BondsForeignCurrencySeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds Foreign currency Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds Foreign currency Seventeen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencySeventeenMember_lbl" xml:lang="en-US">Bonds, foreign currency seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyEighteenMember" xlink:label="ec_BondsForeignCurrencyEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyEighteenMember" xlink:to="ec_BondsForeignCurrencyEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Eighteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyEighteenMember_lbl" xml:lang="en-US">Bonds, foreign currency eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyNineteenMember" xlink:label="ec_BondsForeignCurrencyNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyNineteenMember" xlink:to="ec_BondsForeignCurrencyNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds Foreign currency Nineteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyNineteenMember_lbl" xml:lang="en-US">Bonds, foreign currency nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyMember" xlink:label="ec_BondsForeignCurrencyTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyMember" xlink:to="ec_BondsForeignCurrencyTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyOneMember" xlink:label="ec_BondsForeignCurrencyTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyOneMember" xlink:to="ec_BondsForeignCurrencyTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty one [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty one</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyOneMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyTwoMember" xlink:label="ec_BondsForeignCurrencyTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyTwoMember" xlink:to="ec_BondsForeignCurrencyTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyTwoMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyThreeMember" xlink:label="ec_BondsForeignCurrencyTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyThreeMember" xlink:to="ec_BondsForeignCurrencyTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyThreeMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyFourMember" xlink:label="ec_BondsForeignCurrencyTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyFourMember" xlink:to="ec_BondsForeignCurrencyTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Four Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyFourMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyFiveMember" xlink:label="ec_BondsForeignCurrencyTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyFiveMember" xlink:to="ec_BondsForeignCurrencyTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyFiveMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentySixMember" xlink:label="ec_BondsForeignCurrencyTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentySixMember" xlink:to="ec_BondsForeignCurrencyTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentySixMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentySevenMember" xlink:label="ec_BondsForeignCurrencyTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentySevenMember" xlink:to="ec_BondsForeignCurrencyTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentySevenMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyEightMember" xlink:label="ec_BondsForeignCurrencyTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyEightMember" xlink:to="ec_BondsForeignCurrencyTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyEightMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyEightMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyEightMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyTwentyNineMember" xlink:label="ec_BondsForeignCurrencyTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyTwentyNineMember" xlink:to="ec_BondsForeignCurrencyTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyTwentyNineMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyTwentyNineMember_lbl" xml:lang="en-US">Bonds Foreign currency Twenty Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyTwentyNineMember_lbl" xml:lang="en-US">Bonds, foreign currency twenty nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyMember" xlink:label="ec_BondsForeignCurrencyThirtyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyMember" xlink:to="ec_BondsForeignCurrencyThirtyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyOneMember" xlink:label="ec_BondsForeignCurrencyThirtyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyOneMember" xlink:to="ec_BondsForeignCurrencyThirtyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyOneMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyTwoMember" xlink:label="ec_BondsForeignCurrencyThirtyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyTwoMember" xlink:to="ec_BondsForeignCurrencyThirtyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyTwoMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyThreeMember" xlink:label="ec_BondsForeignCurrencyThirtyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyThreeMember" xlink:to="ec_BondsForeignCurrencyThirtyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyThreeMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyFourMember" xlink:label="ec_BondsForeignCurrencyThirtyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyFourMember" xlink:to="ec_BondsForeignCurrencyThirtyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyFourMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Four [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyFourMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyFourMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyFiveMember" xlink:label="ec_BondsForeignCurrencyThirtyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyFiveMember" xlink:to="ec_BondsForeignCurrencyThirtyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyFiveMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Five [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyFiveMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyFiveMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtySixMember" xlink:label="ec_BondsForeignCurrencyThirtySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtySixMember" xlink:to="ec_BondsForeignCurrencyThirtySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtySixMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Six [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtySixMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtySixMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtySevenMember" xlink:label="ec_BondsForeignCurrencyThirtySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtySevenMember" xlink:to="ec_BondsForeignCurrencyThirtySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtySevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Seven [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtySevenMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtySevenMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyEightMember" xlink:label="ec_BondsForeignCurrencyThirtyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyEightMember" xlink:to="ec_BondsForeignCurrencyThirtyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyEightMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Eight [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyEightMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyEightMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyThirtyNineMember" xlink:label="ec_BondsForeignCurrencyThirtyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyThirtyNineMember" xlink:to="ec_BondsForeignCurrencyThirtyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyThirtyNineMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Nine [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyThirtyNineMember_lbl" xml:lang="en-US">Bonds Foreign currency Thirty Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyThirtyNineMember_lbl" xml:lang="en-US">Bonds, foreign currency thirty nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFortyMember" xlink:label="ec_BondsForeignCurrencyFortyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFortyMember" xlink:to="ec_BondsForeignCurrencyFortyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFortyMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency forty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFortyMember_lbl" xml:lang="en-US">Bonds Foreign currency Forty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFortyMember_lbl" xml:lang="en-US">Bonds, foreign currency forty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFortyOneMember" xlink:label="ec_BondsForeignCurrencyFortyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFortyOneMember" xlink:to="ec_BondsForeignCurrencyFortyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFortyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency forty one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFortyOneMember_lbl" xml:lang="en-US">Bonds Foreign currency Forty One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFortyOneMember_lbl" xml:lang="en-US">Bonds, foreign currency forty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFortyTwoMember" xlink:label="ec_BondsForeignCurrencyFortyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFortyTwoMember" xlink:to="ec_BondsForeignCurrencyFortyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFortyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency forty two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFortyTwoMember_lbl" xml:lang="en-US">Bonds Foreign currency Forty Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFortyTwoMember_lbl" xml:lang="en-US">Bonds, foreign currency forty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BondsForeignCurrencyFortyThreeMember" xlink:label="ec_BondsForeignCurrencyFortyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BondsForeignCurrencyFortyThreeMember" xlink:to="ec_BondsForeignCurrencyFortyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BondsForeignCurrencyFortyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to Bonds, foreign currency forty three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BondsForeignCurrencyFortyThreeMember_lbl" xml:lang="en-US">Bonds Foreign currency Forty Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BondsForeignCurrencyFortyThreeMember_lbl" xml:lang="en-US">Bonds, foreign currency forty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansOneMember" xlink:label="ec_InternationalCommercialLoansOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansOneMember" xlink:to="ec_InternationalCommercialLoansOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansOneMember_lbl" xml:lang="en-US">International Commercial Loans One [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansOneMember_lbl" xml:lang="en-US">International Commercial Loans One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansOneMember_lbl" xml:lang="en-US">International commercial loans one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwoMember" xlink:label="ec_InternationalCommercialLoansTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwoMember" xlink:to="ec_InternationalCommercialLoansTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwoMember_lbl" xml:lang="en-US">International Commercial Loans Two [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwoMember_lbl" xml:lang="en-US">International Commercial Loans Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwoMember_lbl" xml:lang="en-US">International commercial loans two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansThreeMember" xlink:label="ec_InternationalCommercialLoansThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansThreeMember" xlink:to="ec_InternationalCommercialLoansThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansThreeMember_lbl" xml:lang="en-US">International Commercial Loans Two [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansThreeMember_lbl" xml:lang="en-US">International Commercial Loans Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansThreeMember_lbl" xml:lang="en-US">International commercial loans three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansFourMember" xlink:label="ec_InternationalCommercialLoansFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansFourMember" xlink:to="ec_InternationalCommercialLoansFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansFourMember_lbl" xml:lang="en-US">International Commercial Loans Four [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansFourMember_lbl" xml:lang="en-US">International Commercial Loans Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansFourMember_lbl" xml:lang="en-US">International commercial loans four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansFiveMember" xlink:label="ec_InternationalCommercialLoansFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansFiveMember" xlink:to="ec_InternationalCommercialLoansFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansFiveMember_lbl" xml:lang="en-US">International Commercial Loans Five [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansFiveMember_lbl" xml:lang="en-US">International Commercial Loans Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansFiveMember_lbl" xml:lang="en-US">International commercial loans five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansSixMember" xlink:label="ec_InternationalCommercialLoansSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansSixMember" xlink:to="ec_InternationalCommercialLoansSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansSixMember_lbl" xml:lang="en-US">International Commercial Loans Six [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansSixMember_lbl" xml:lang="en-US">International Commercial Loans Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansSixMember_lbl" xml:lang="en-US">International commercial loans six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansSevenMember" xlink:label="ec_InternationalCommercialLoansSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansSevenMember" xlink:to="ec_InternationalCommercialLoansSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansSevenMember_lbl" xml:lang="en-US">International Commercial Loans Seven [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansSevenMember_lbl" xml:lang="en-US">International Commercial Loans Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansSevenMember_lbl" xml:lang="en-US">International commercial loans seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansEightMember" xlink:label="ec_InternationalCommercialLoansEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansEightMember" xlink:to="ec_InternationalCommercialLoansEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansEightMember_lbl" xml:lang="en-US">International Commercial Loans Eight [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansEightMember_lbl" xml:lang="en-US">International Commercial Loans Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansEightMember_lbl" xml:lang="en-US">International commercial loans eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansNineMember" xlink:label="ec_InternationalCommercialLoansNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansNineMember" xlink:to="ec_InternationalCommercialLoansNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansNineMember_lbl" xml:lang="en-US">International Commercial Loans Nine [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansNineMember_lbl" xml:lang="en-US">International Commercial Loans Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansNineMember_lbl" xml:lang="en-US">International commercial loans nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTenMember" xlink:label="ec_InternationalCommercialLoansTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTenMember" xlink:to="ec_InternationalCommercialLoansTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTenMember_lbl" xml:lang="en-US">International Commercial Loans Ten [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTenMember_lbl" xml:lang="en-US">International Commercial Loans Ten</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTenMember_lbl" xml:lang="en-US">International commercial loans ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansElevenMember" xlink:label="ec_InternationalCommercialLoansElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansElevenMember" xlink:to="ec_InternationalCommercialLoansElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansElevenMember_lbl" xml:lang="en-US">International Commercial Loans Eleven [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansElevenMember_lbl" xml:lang="en-US">International Commercial Loans Eleven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansElevenMember_lbl" xml:lang="en-US">International commercial loans eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwelveMember" xlink:label="ec_InternationalCommercialLoansTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwelveMember" xlink:to="ec_InternationalCommercialLoansTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwelveMember_lbl" xml:lang="en-US">International Commercial Loans Twelve [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwelveMember_lbl" xml:lang="en-US">International Commercial Loans Twelve</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwelveMember_lbl" xml:lang="en-US">International commercial loans twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansThirteenMember" xlink:label="ec_InternationalCommercialLoansThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansThirteenMember" xlink:to="ec_InternationalCommercialLoansThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansThirteenMember_lbl" xml:lang="en-US">International Commercial Loans Thirteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansThirteenMember_lbl" xml:lang="en-US">International Commercial Loans Thirteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansThirteenMember_lbl" xml:lang="en-US">International commercial loans thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansFourteenMember" xlink:label="ec_InternationalCommercialLoansFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansFourteenMember" xlink:to="ec_InternationalCommercialLoansFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansFourteenMember_lbl" xml:lang="en-US">International Commercial Loans Fourteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansFourteenMember_lbl" xml:lang="en-US">International Commercial Loans Fourteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansFourteenMember_lbl" xml:lang="en-US">International commercial loans fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansFifteenMember" xlink:label="ec_InternationalCommercialLoansFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansFifteenMember" xlink:to="ec_InternationalCommercialLoansFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansFifteenMember_lbl" xml:lang="en-US">International Commercial Loans Fifteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansFifteenMember_lbl" xml:lang="en-US">International Commercial Loans Fifteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansFifteenMember_lbl" xml:lang="en-US">International commercial loans fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansSixteenMember" xlink:label="ec_InternationalCommercialLoansSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansSixteenMember" xlink:to="ec_InternationalCommercialLoansSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansSixteenMember_lbl" xml:lang="en-US">International Commercial Loans Sixteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansSixteenMember_lbl" xml:lang="en-US">International Commercial Loans Sixteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansSixteenMember_lbl" xml:lang="en-US">International commercial loans sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansSeventeenMember" xlink:label="ec_InternationalCommercialLoansSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansSeventeenMember" xlink:to="ec_InternationalCommercialLoansSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansSeventeenMember_lbl" xml:lang="en-US">International Commercial Loans Seventeen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansSeventeenMember_lbl" xml:lang="en-US">International Commercial Loans Seventeen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansSeventeenMember_lbl" xml:lang="en-US">International commercial loans seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansEighteenMember" xlink:label="ec_InternationalCommercialLoansEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansEighteenMember" xlink:to="ec_InternationalCommercialLoansEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansEighteenMember_lbl" xml:lang="en-US">International Commercial Loans Eighteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansEighteenMember_lbl" xml:lang="en-US">International Commercial Loans Eighteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansEighteenMember_lbl" xml:lang="en-US">International commercial loans eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansNineteenMember" xlink:label="ec_InternationalCommercialLoansNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansNineteenMember" xlink:to="ec_InternationalCommercialLoansNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansNineteenMember_lbl" xml:lang="en-US">International Commercial Loans Nineteen [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansNineteenMember_lbl" xml:lang="en-US">International Commercial Loans Nineteen</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansNineteenMember_lbl" xml:lang="en-US">International commercial loans nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyMember" xlink:label="ec_InternationalCommercialLoansTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyMember" xlink:to="ec_InternationalCommercialLoansTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyMember_lbl" xml:lang="en-US">International Commercial Loans Twenty [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyMember_lbl" xml:lang="en-US">International Commercial Loans Twenty</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyMember_lbl" xml:lang="en-US">International commercial loans twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyOneMember" xlink:label="ec_InternationalCommercialLoansTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyOneMember" xlink:to="ec_InternationalCommercialLoansTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">International Commercial Loans Twenty One [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">International Commercial Loans Twenty One</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">International commercial loans twenty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyTwoMember" xlink:label="ec_InternationalCommercialLoansTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyTwoMember" xlink:to="ec_InternationalCommercialLoansTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Two [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Two</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">International commercial loans twenty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyThreeMember" xlink:label="ec_InternationalCommercialLoansTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyThreeMember" xlink:to="ec_InternationalCommercialLoansTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Three [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Three</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">International commercial loans twenty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyFourMember" xlink:label="ec_InternationalCommercialLoansTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyFourMember" xlink:to="ec_InternationalCommercialLoansTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Four [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Four</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">International commercial loans twenty four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyFiveMember" xlink:label="ec_InternationalCommercialLoansTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyFiveMember" xlink:to="ec_InternationalCommercialLoansTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Five [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Five</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">International commercial loans twenty five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentySixMember" xlink:label="ec_InternationalCommercialLoansTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentySixMember" xlink:to="ec_InternationalCommercialLoansTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentySixMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Six [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentySixMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Six</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentySixMember_lbl" xml:lang="en-US">International commercial loans twenty six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentySevenMember" xlink:label="ec_InternationalCommercialLoansTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentySevenMember" xlink:to="ec_InternationalCommercialLoansTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Seven [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Seven</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">International commercial loans twenty seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyEightMember" xlink:label="ec_InternationalCommercialLoansTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyEightMember" xlink:to="ec_InternationalCommercialLoansTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Eight [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Eight</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">International commercial loans twenty eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansTwentyNineMember" xlink:label="ec_InternationalCommercialLoansTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansTwentyNineMember" xlink:to="ec_InternationalCommercialLoansTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Nine [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">International Commercial Loans Twenty Nine</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">International commercial loans twenty nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InternationalCommercialLoansThirtyMember" xlink:label="ec_InternationalCommercialLoansThirtyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InternationalCommercialLoansThirtyMember" xlink:to="ec_InternationalCommercialLoansThirtyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InternationalCommercialLoansThirtyMember_lbl" xml:lang="en-US">International Commercial Loans Thirty [Member].</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InternationalCommercialLoansThirtyMember_lbl" xml:lang="en-US">International Commercial Loans Thirty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InternationalCommercialLoansThirtyMember_lbl" xml:lang="en-US">International commercial loans thirty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansOneMember" xlink:label="ec_DomesticCommercialLoansOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansOneMember" xlink:to="ec_DomesticCommercialLoansOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansOneMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansOneMember_lbl" xml:lang="en-US">Domestic Commercial Loans One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansOneMember_lbl" xml:lang="en-US">Domestic commercial loans one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwoMember" xlink:label="ec_DomesticCommercialLoansTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwoMember" xlink:to="ec_DomesticCommercialLoansTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwoMember_lbl" xml:lang="en-US">Domestic Commercial Loans Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwoMember_lbl" xml:lang="en-US">Domestic commercial loans two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansThreeMember" xlink:label="ec_DomesticCommercialLoansThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansThreeMember" xlink:to="ec_DomesticCommercialLoansThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansThreeMember_lbl" xml:lang="en-US">Domestic Commercial Loans Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansThreeMember_lbl" xml:lang="en-US">Domestic commercial loans three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansFourMember" xlink:label="ec_DomesticCommercialLoansFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansFourMember" xlink:to="ec_DomesticCommercialLoansFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansFourMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansFourMember_lbl" xml:lang="en-US">Domestic Commercial Loans Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansFourMember_lbl" xml:lang="en-US">Domestic commercial loans four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansFiveMember" xlink:label="ec_DomesticCommercialLoansFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansFiveMember" xlink:to="ec_DomesticCommercialLoansFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansFiveMember_lbl" xml:lang="en-US">Domestic Commercial Loans Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansFiveMember_lbl" xml:lang="en-US">Domestic commercial loans five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansSixMember" xlink:label="ec_DomesticCommercialLoansSixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansSixMember" xlink:to="ec_DomesticCommercialLoansSixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansSixMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansSixMember_lbl" xml:lang="en-US">Domestic Commercial Loans Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansSixMember_lbl" xml:lang="en-US">Domestic commercial loans six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansSevenMember" xlink:label="ec_DomesticCommercialLoansSevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansSevenMember" xlink:to="ec_DomesticCommercialLoansSevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansSevenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansSevenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansSevenMember_lbl" xml:lang="en-US">Domestic commercial loans seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansEightMember" xlink:label="ec_DomesticCommercialLoansEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansEightMember" xlink:to="ec_DomesticCommercialLoansEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansEightMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansEightMember_lbl" xml:lang="en-US">Domestic Commercial Loans Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansEightMember_lbl" xml:lang="en-US">Domestic commercial loans eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansNineMember" xlink:label="ec_DomesticCommercialLoansNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansNineMember" xlink:to="ec_DomesticCommercialLoansNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansNineMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansNineMember_lbl" xml:lang="en-US">Domestic Commercial Loans Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansNineMember_lbl" xml:lang="en-US">Domestic commercial loans nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTenMember" xlink:label="ec_DomesticCommercialLoansTenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTenMember" xlink:to="ec_DomesticCommercialLoansTenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans ten.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Ten [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTenMember_lbl" xml:lang="en-US">Domestic commercial loans ten</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansElevenMember" xlink:label="ec_DomesticCommercialLoansElevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansElevenMember" xlink:to="ec_DomesticCommercialLoansElevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansElevenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans eleven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansElevenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Eleven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansElevenMember_lbl" xml:lang="en-US">Domestic commercial loans eleven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwelveMember" xlink:label="ec_DomesticCommercialLoansTwelveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwelveMember" xlink:to="ec_DomesticCommercialLoansTwelveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwelveMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twelve.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwelveMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twelve [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwelveMember_lbl" xml:lang="en-US">Domestic commercial loans twelve</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansThirteenMember" xlink:label="ec_DomesticCommercialLoansThirteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansThirteenMember" xlink:to="ec_DomesticCommercialLoansThirteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansThirteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans thirteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansThirteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Thirteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansThirteenMember_lbl" xml:lang="en-US">Domestic commercial loans thirteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansFourteenMember" xlink:label="ec_DomesticCommercialLoansFourteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansFourteenMember" xlink:to="ec_DomesticCommercialLoansFourteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansFourteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans fourteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansFourteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Fourteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansFourteenMember_lbl" xml:lang="en-US">Domestic commercial loans fourteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansFifteenMember" xlink:label="ec_DomesticCommercialLoansFifteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansFifteenMember" xlink:to="ec_DomesticCommercialLoansFifteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansFifteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans fifteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansFifteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Fifteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansFifteenMember_lbl" xml:lang="en-US">Domestic commercial loans fifteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansSixteenMember" xlink:label="ec_DomesticCommercialLoansSixteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansSixteenMember" xlink:to="ec_DomesticCommercialLoansSixteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansSixteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans sixteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansSixteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Sixteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansSixteenMember_lbl" xml:lang="en-US">Domestic commercial loans sixteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansSeventeenMember" xlink:label="ec_DomesticCommercialLoansSeventeenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansSeventeenMember" xlink:to="ec_DomesticCommercialLoansSeventeenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansSeventeenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans seventeen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansSeventeenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Seventeen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansSeventeenMember_lbl" xml:lang="en-US">Domestic commercial loans seventeen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansEighteenMember" xlink:label="ec_DomesticCommercialLoansEighteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansEighteenMember" xlink:to="ec_DomesticCommercialLoansEighteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansEighteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans eighteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansEighteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Eighteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansEighteenMember_lbl" xml:lang="en-US">Domestic commercial loans eighteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansNineteenMember" xlink:label="ec_DomesticCommercialLoansNineteenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansNineteenMember" xlink:to="ec_DomesticCommercialLoansNineteenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansNineteenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans nineteen.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansNineteenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Nineteen [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansNineteenMember_lbl" xml:lang="en-US">Domestic commercial loans nineteen</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyMember" xlink:label="ec_DomesticCommercialLoansTwentyMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyMember" xlink:to="ec_DomesticCommercialLoansTwentyMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyMember_lbl" xml:lang="en-US">Domestic commercial loans twenty</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyOneMember" xlink:label="ec_DomesticCommercialLoansTwentyOneMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyOneMember" xlink:to="ec_DomesticCommercialLoansTwentyOneMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty one.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty One [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyOneMember_lbl" xml:lang="en-US">Domestic commercial loans twenty one</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyTwoMember" xlink:label="ec_DomesticCommercialLoansTwentyTwoMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyTwoMember" xlink:to="ec_DomesticCommercialLoansTwentyTwoMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty two.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Two [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyTwoMember_lbl" xml:lang="en-US">Domestic commercial loans twenty two</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyThreeMember" xlink:label="ec_DomesticCommercialLoansTwentyThreeMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyThreeMember" xlink:to="ec_DomesticCommercialLoansTwentyThreeMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty three.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Three [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyThreeMember_lbl" xml:lang="en-US">Domestic commercial loans twenty three</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyFourMember" xlink:label="ec_DomesticCommercialLoansTwentyFourMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyFourMember" xlink:to="ec_DomesticCommercialLoansTwentyFourMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty four.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Four [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyFourMember_lbl" xml:lang="en-US">Domestic commercial loans twenty four</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyFiveMember" xlink:label="ec_DomesticCommercialLoansTwentyFiveMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyFiveMember" xlink:to="ec_DomesticCommercialLoansTwentyFiveMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty five.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Five [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyFiveMember_lbl" xml:lang="en-US">Domestic commercial loans twenty five</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentySixMember" xlink:label="ec_DomesticCommercialLoansTwentySixMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentySixMember" xlink:to="ec_DomesticCommercialLoansTwentySixMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentySixMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty six.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentySixMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Six [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentySixMember_lbl" xml:lang="en-US">Domestic commercial loans twenty six</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentySevenMember" xlink:label="ec_DomesticCommercialLoansTwentySevenMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentySevenMember" xlink:to="ec_DomesticCommercialLoansTwentySevenMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty seven.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Seven [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentySevenMember_lbl" xml:lang="en-US">Domestic commercial loans twenty seven</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyEightMember" xlink:label="ec_DomesticCommercialLoansTwentyEightMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyEightMember" xlink:to="ec_DomesticCommercialLoansTwentyEightMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty eight.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Eight [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyEightMember_lbl" xml:lang="en-US">Domestic commercial loans twenty eight</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DomesticCommercialLoansTwentyNineMember" xlink:label="ec_DomesticCommercialLoansTwentyNineMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DomesticCommercialLoansTwentyNineMember" xlink:to="ec_DomesticCommercialLoansTwentyNineMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DomesticCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">Represents the information pertaining to domestic commercial loans twenty nine.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DomesticCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">Domestic Commercial Loans Twenty Nine [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_DomesticCommercialLoansTwentyNineMember_lbl" xml:lang="en-US">Domestic commercial loans twenty nine</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CompanyName" xlink:label="ec_CompanyName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CompanyName" xlink:to="ec_CompanyName_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CompanyName_lbl" xml:lang="en-US">The company names of borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CompanyName_lbl" xml:lang="en-US">Company Name</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_CompanyName_lbl" xml:lang="en-US">Company</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BorrowingInitialDate" xlink:label="ec_BorrowingInitialDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BorrowingInitialDate" xlink:to="ec_BorrowingInitialDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BorrowingInitialDate_lbl" xml:lang="en-US">The initial date of borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BorrowingInitialDate_lbl" xml:lang="en-US">Borrowing Initial Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BorrowingInitialDate_lbl" xml:lang="en-US">Issue date</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BorrowingExpiryDate" xlink:label="ec_BorrowingExpiryDate" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BorrowingExpiryDate" xlink:to="ec_BorrowingExpiryDate_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BorrowingExpiryDate_lbl" xml:lang="en-US">The expiry date of borrowings.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BorrowingExpiryDate_lbl" xml:lang="en-US">Borrowing Expiry Date</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_BorrowingExpiryDate_lbl" xml:lang="en-US">Maturity</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsOriginalCurrency" xlink:label="ifrs-full_BorrowingsOriginalCurrency" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsOriginalCurrency" xlink:to="ifrs-full_BorrowingsOriginalCurrency_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsOriginalCurrency_lbl" xml:lang="en-US">Borrowings, original currency</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BorrowingsOriginalCurrency_lbl" xml:lang="en-US">Currency</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRateBasis" xlink:label="ifrs-full_BorrowingsInterestRateBasis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsInterestRateBasis" xlink:to="ifrs-full_BorrowingsInterestRateBasis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsInterestRateBasis_lbl" xml:lang="en-US">Borrowings, interest rate basis</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BorrowingsInterestRateBasis_lbl" xml:lang="en-US">Interest rate</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_BasisOfAmortizationOfPrincipal" xlink:label="ec_BasisOfAmortizationOfPrincipal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_BasisOfAmortizationOfPrincipal" xlink:to="ec_BasisOfAmortizationOfPrincipal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_BasisOfAmortizationOfPrincipal_lbl" xml:lang="en-US">The basis of amortization of principal.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_BasisOfAmortizationOfPrincipal_lbl" xml:lang="en-US">Basis of Amortization of Principal</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_BasisOfAmortizationOfPrincipal_lbl" xml:lang="en-US">Amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterestPaymentTerms" xlink:label="ec_InterestPaymentTerms" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterestPaymentTerms" xlink:to="ec_InterestPaymentTerms_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterestPaymentTerms_lbl" xml:lang="en-US">The terms for payment of interest.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterestPaymentTerms_lbl" xml:lang="en-US">Interest Payment Terms</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_InterestPaymentTerms_lbl" xml:lang="en-US">Interest payment</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfServiceConcessionArrangementsTable" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfServiceConcessionArrangementsTable" xlink:to="ifrs-full_DisclosureOfServiceConcessionArrangementsTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsTable_lbl" xml:lang="en-US">Disclosure of detailed information about service concession arrangements [table]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ServiceConcessionArrangementsAxis" xlink:label="ifrs-full_ServiceConcessionArrangementsAxis" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ServiceConcessionArrangementsAxis" xlink:to="ifrs-full_ServiceConcessionArrangementsAxis_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ServiceConcessionArrangementsAxis_lbl" xml:lang="en-US">Service concession arrangements [axis]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ServiceConcessionArrangementsDomain" xlink:label="ifrs-full_ServiceConcessionArrangementsDomain" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ServiceConcessionArrangementsDomain" xlink:to="ifrs-full_ServiceConcessionArrangementsDomain_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ServiceConcessionArrangementsDomain_lbl" xml:lang="en-US">Service concession arrangements [domain]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ElectricPowerConcessionServiceContractMember" xlink:label="ec_ElectricPowerConcessionServiceContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ElectricPowerConcessionServiceContractMember" xlink:to="ec_ElectricPowerConcessionServiceContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ElectricPowerConcessionServiceContractMember_lbl" xml:lang="en-US">This member stands for the electric power concession service contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ElectricPowerConcessionServiceContractMember_lbl" xml:lang="en-US">Electric Power Concession Service Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ElectricPowerConcessionServiceContractMember_lbl" xml:lang="en-US">Electric power</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RoadConcessionServiceContractMember" xlink:label="ec_RoadConcessionServiceContractMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RoadConcessionServiceContractMember" xlink:to="ec_RoadConcessionServiceContractMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RoadConcessionServiceContractMember_lbl" xml:lang="en-US">This  member stands for road concession service contract.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RoadConcessionServiceContractMember_lbl" xml:lang="en-US">Road Concession Service Contract [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RoadConcessionServiceContractMember_lbl" xml:lang="en-US">Roads</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RedDeEnergiaDelPeruS.a.IsaRepMember" xlink:label="ec_RedDeEnergiaDelPeruS.a.IsaRepMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RedDeEnergiaDelPeruS.a.IsaRepMember" xlink:to="ec_RedDeEnergiaDelPeruS.a.IsaRepMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RedDeEnergiaDelPeruS.a.IsaRepMember_lbl" xml:lang="en-US">This member stands for Red de Energa del Per S.A. - ISA REP.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RedDeEnergiaDelPeruS.a.IsaRepMember_lbl" xml:lang="en-US">Red de Energia del Peru S.A. - ISA REP [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RedDeEnergiaDelPeruS.a.IsaRepMember_lbl" xml:lang="en-US">Red de Energia del Peru S.A. - ISA REP</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_IsaPeruS.a.Member" xlink:label="ec_IsaPeruS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_IsaPeruS.a.Member" xlink:to="ec_IsaPeruS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_IsaPeruS.a.Member_lbl" xml:lang="en-US">This member stands for ISA Per S.A..</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_IsaPeruS.a.Member_lbl" xml:lang="en-US">ISA Peru S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_IsaPeruS.a.Member_lbl" xml:lang="en-US">ISA Peru S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member" xlink:label="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member" xlink:to="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member_lbl" xml:lang="en-US">This member stands for Inteia S. A. S. (antes Sistemas Inteligentes de Red S. A. S.).</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member_lbl" xml:lang="en-US">Inteia S. A. S. (antes Sistemas Inteligentes de Red S. A. S.) [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InteiaS.A.S.AntesSistemasInteligentesDeRedS.A.S.Member_lbl" xml:lang="en-US">Inteia S. A. S. (antes Sistemas Inteligentes de Red S. A. S.)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_InterligacaoEletricaRiachoGrandeS.a.Member" xlink:label="ec_InterligacaoEletricaRiachoGrandeS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_InterligacaoEletricaRiachoGrandeS.a.Member" xlink:to="ec_InterligacaoEletricaRiachoGrandeS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_InterligacaoEletricaRiachoGrandeS.a.Member_lbl" xml:lang="en-US">This member stands for Interligacao Eletrica Riacho Grande S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_InterligacaoEletricaRiachoGrandeS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Riacho Grande S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_InterligacaoEletricaRiachoGrandeS.a.Member_lbl" xml:lang="en-US">Interligacao Eletrica Riacho Grande S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember" xlink:label="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember" xlink:to="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember_lbl" xml:lang="en-US">This member stands for Concesin Costera-Cartagena-Barranquilla S.A.S.-Ruta Costera.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember_lbl" xml:lang="en-US">Concesion Costera-Cartagena-Barranquilla S.A.S.-Ruta Costera [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcesionCosteraCartagenaBarranquillaS.a.s.RutaCosteraMember_lbl" xml:lang="en-US">Concesion Costera-Cartagena-Barranquilla S.A.S.-Ruta Costera</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RutaDelEsteSociedadConcessionariaS.a.Member" xlink:label="ec_RutaDelEsteSociedadConcessionariaS.a.Member" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RutaDelEsteSociedadConcessionariaS.a.Member" xlink:to="ec_RutaDelEsteSociedadConcessionariaS.a.Member_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RutaDelEsteSociedadConcessionariaS.a.Member_lbl" xml:lang="en-US">This member stands for Ruta del Este Sociedad Concessionaria S.A.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RutaDelEsteSociedadConcessionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Este Sociedad Concessionaria S.A. [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RutaDelEsteSociedadConcessionariaS.a.Member_lbl" xml:lang="en-US">Ruta del Este Sociedad Concessionaria S.A.</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_BO" xlink:label="country_BO" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_BO" xlink:to="country_BO_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_BO_lbl" xml:lang="en-US">BOLIVIA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_BO_lbl" xml:lang="en-US">Bolivia</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PA" xlink:label="country_PA" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_PA" xlink:to="country_PA_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_PA_lbl" xml:lang="en-US">PANAMA</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_PA_lbl" xml:lang="en-US">Panama</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems" xlink:to="ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems_lbl" xml:lang="en-US">Disclosure of detailed information about service concession arrangements [line items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems_lbl" xml:lang="en-US">Exhibit 4. Quantitative information of concession services contracts</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionAssetsConstructionServicesForIntangibleAsset" xlink:label="ec_ConcessionAssetsConstructionServicesForIntangibleAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionAssetsConstructionServicesForIntangibleAsset" xlink:to="ec_ConcessionAssetsConstructionServicesForIntangibleAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionAssetsConstructionServicesForIntangibleAsset_lbl" xml:lang="en-US">Carrying amount of assets when construction services are exchanged for for an intangible asset in service concession arrangements.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionAssetsConstructionServicesForIntangibleAsset_lbl" xml:lang="en-US">Concession Assets, Construction Services For Intangible Asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionAssetsConstructionServicesForIntangibleAsset_lbl" xml:lang="en-US">Asset concessions, intangible assets</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionAssetsConstructionServicesForContractualAsset" xlink:label="ec_ConcessionAssetsConstructionServicesForContractualAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionAssetsConstructionServicesForContractualAsset" xlink:to="ec_ConcessionAssetsConstructionServicesForContractualAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionAssetsConstructionServicesForContractualAsset_lbl" xml:lang="en-US">Carrying amount of assets when construction services are exchanged for contractual assets in service concession arrangements.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionAssetsConstructionServicesForContractualAsset_lbl" xml:lang="en-US">Concession Assets, Construction Services For Contractual Asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionAssetsConstructionServicesForContractualAsset_lbl" xml:lang="en-US">Asset concession, contractual asset</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ConcessionAssetsConstructionServicesForFinancialAsset" xlink:label="ec_ConcessionAssetsConstructionServicesForFinancialAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ConcessionAssetsConstructionServicesForFinancialAsset" xlink:to="ec_ConcessionAssetsConstructionServicesForFinancialAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ConcessionAssetsConstructionServicesForFinancialAsset_lbl" xml:lang="en-US">Carrying amount of assets when construction services are exchanged for financial assets in service concession arrangements.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ConcessionAssetsConstructionServicesForFinancialAsset_lbl" xml:lang="en-US">Concession Assets, Construction Services For Financial Asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ConcessionAssetsConstructionServicesForFinancialAsset_lbl" xml:lang="en-US">Asset concession, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset" xlink:to="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset_lbl" xml:lang="en-US">Revenue recognised on exchanging construction services for intangible asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForIntangibleAsset_lbl" xml:lang="en-US">Revenue, intangible asset</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset" xlink:label="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset" xlink:to="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset_lbl" xml:lang="en-US">The amount of revenue recognised when construction services are exchanged for contractual assets in service concession arrangements. [Refer: Service concession arrangements [domain]; Revenue from contracts with customers]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset_lbl" xml:lang="en-US">Revenue Recognised on Exchanging Construction Services for Contractual Asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_RevenueRecognisedOnExchangingConstructionServicesForContractualAsset_lbl" xml:lang="en-US">Revenue, contractual asset</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset" xlink:to="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset_lbl" xml:lang="en-US">Revenue recognised on exchanging construction services for financial asset</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RevenueRecognisedOnExchangingConstructionServicesForFinancialAsset_lbl" xml:lang="en-US">Revenue, financial asset</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_RevenueFromConcession" xlink:label="ec_RevenueFromConcession" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_RevenueFromConcession" xlink:to="ec_RevenueFromConcession_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_RevenueFromConcession_lbl" xml:lang="en-US">The amount of revenue recognised when construction services are exchanged in service concession arrangements. [Refer: Service concession arrangements [domain]; Revenue from contracts with customers]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_RevenueFromConcession_lbl" xml:lang="en-US">Revenue From Concession</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_RevenueFromConcession_lbl" xml:lang="en-US">Total concessions, revenue</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalizedCostsNaturalandevironmentalproperties" xlink:label="ec_CapitalizedCostsNaturalandevironmentalproperties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalizedCostsNaturalandevironmentalproperties" xlink:to="ec_CapitalizedCostsNaturalandevironmentalproperties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalizedCostsNaturalandevironmentalproperties_lbl" xml:lang="en-US">The amount of natural and environmental properties capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation, depletion and amortization.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalizedCostsNaturalandevironmentalproperties_lbl" xml:lang="en-US">Capitalized Costs, Natural and Environmental Properties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CapitalizedCostsNaturalandevironmentalproperties_lbl" xml:lang="en-US">Natural and environmental properties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalizedCostsWellsEquipmentAndFacilities" xlink:label="ec_CapitalizedCostsWellsEquipmentAndFacilities" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalizedCostsWellsEquipmentAndFacilities" xlink:to="ec_CapitalizedCostsWellsEquipmentAndFacilities_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalizedCostsWellsEquipmentAndFacilities_lbl" xml:lang="en-US">The amount of wells, equipment and facilities capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation, depletion and amortization.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalizedCostsWellsEquipmentAndFacilities_lbl" xml:lang="en-US">Capitalized Costs, Wells, Equipment and Facilities</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CapitalizedCostsWellsEquipmentAndFacilities_lbl" xml:lang="en-US">Wells, equipment, and facilities - property, plant, and equipment</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalizedCostsConstructionInProgress" xlink:label="ec_CapitalizedCostsConstructionInProgress" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalizedCostsConstructionInProgress" xlink:to="ec_CapitalizedCostsConstructionInProgress_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalizedCostsConstructionInProgress_lbl" xml:lang="en-US">The amount of construction in progress capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation, depletion and amortization.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalizedCostsConstructionInProgress_lbl" xml:lang="en-US">Capitalized Costs, Construction in Progress</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CapitalizedCostsConstructionInProgress_lbl" xml:lang="en-US">Exploration and production projects</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization" xlink:label="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization" xlink:to="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization_lbl" xml:lang="en-US">Amount of accumulated depreciation, depletion, amortization relating to oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization_lbl" xml:lang="en-US">Capitalized Costs, Accumulated Depreciation, Depletion, Amortization</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_CapitalizedCostsAccumulatedDepreciationDepletionAmortization_lbl" xml:lang="en-US">Accumulated depreciation, depletion, and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal" xlink:label="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal" xlink:to="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal_lbl" xml:lang="en-US">Net amount of capitalized costs relating to oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal_lbl" xml:lang="en-US">Capitalized Costs, Oil and Gas Producing Activities, Net, Total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_CapitalizedCostsOilAndGasProducingActivitiesNetTotal_lbl" xml:lang="en-US">Net capitalized cost</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostsIncurredAcquisitionOfProvedProperties" xlink:label="ec_CostsIncurredAcquisitionOfProvedProperties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostsIncurredAcquisitionOfProvedProperties" xlink:to="ec_CostsIncurredAcquisitionOfProvedProperties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostsIncurredAcquisitionOfProvedProperties_lbl" xml:lang="en-US">Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostsIncurredAcquisitionOfProvedProperties_lbl" xml:lang="en-US">Costs Incurred, Acquisition of Proved Properties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CostsIncurredAcquisitionOfProvedProperties_lbl" xml:lang="en-US">Acquisition of proved properties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostsIncurredAcquisitionOfUnprovedProperties" xlink:label="ec_CostsIncurredAcquisitionOfUnprovedProperties" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostsIncurredAcquisitionOfUnprovedProperties" xlink:to="ec_CostsIncurredAcquisitionOfUnprovedProperties_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostsIncurredAcquisitionOfUnprovedProperties_lbl" xml:lang="en-US">Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostsIncurredAcquisitionOfUnprovedProperties_lbl" xml:lang="en-US">Costs Incurred, Acquisition of Unproved Properties</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CostsIncurredAcquisitionOfUnprovedProperties_lbl" xml:lang="en-US">Acquisition of unproved properties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostsIncurredOilAndGasExplorationCosts" xlink:label="ec_CostsIncurredOilAndGasExplorationCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostsIncurredOilAndGasExplorationCosts" xlink:to="ec_CostsIncurredOilAndGasExplorationCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostsIncurredOilAndGasExplorationCosts_lbl" xml:lang="en-US">Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostsIncurredOilAndGasExplorationCosts_lbl" xml:lang="en-US">Costs Incurred, Oil and Gas Exploration Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CostsIncurredOilAndGasExplorationCosts_lbl" xml:lang="en-US">Exploration costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostsIncurredOilAndGasDevelopmentCosts" xlink:label="ec_CostsIncurredOilAndGasDevelopmentCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostsIncurredOilAndGasDevelopmentCosts" xlink:to="ec_CostsIncurredOilAndGasDevelopmentCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostsIncurredOilAndGasDevelopmentCosts_lbl" xml:lang="en-US">Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostsIncurredOilAndGasDevelopmentCosts_lbl" xml:lang="en-US">Costs Incurred, Oil and Gas Development Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_CostsIncurredOilAndGasDevelopmentCosts_lbl" xml:lang="en-US">Development costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal" xlink:label="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal" xlink:to="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal_lbl" xml:lang="en-US">Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal_lbl" xml:lang="en-US">Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities, Total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivitiesTotal_lbl" xml:lang="en-US">Total costs incurred</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract" xlink:label="ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract" xlink:to="ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract_lbl" xml:lang="en-US">Results of operations, net revenue from oil and gas exploration and production activities [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsNetRevenueFromOilAndGasExplorationAndProductionActivitiesAbstract_lbl" xml:lang="en-US">Net revenues</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsSalesRevenue" xlink:label="ec_ResultsOfOperationsSalesRevenue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsSalesRevenue" xlink:to="ec_ResultsOfOperationsSalesRevenue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsSalesRevenue_lbl" xml:lang="en-US">The amount of sales revenue from oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsSalesRevenue_lbl" xml:lang="en-US">Results of operations, sales revenue</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsSalesRevenue_lbl" xml:lang="en-US">Sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsTransfersToEntitysOtherOperations" xlink:label="ec_ResultsOfOperationsTransfersToEntitysOtherOperations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsTransfersToEntitysOtherOperations" xlink:to="ec_ResultsOfOperationsTransfersToEntitysOtherOperations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsTransfersToEntitysOtherOperations_lbl" xml:lang="en-US">The amount of sales or transfers to the enterprises other operations from oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsTransfersToEntitysOtherOperations_lbl" xml:lang="en-US">Results of operations, transfers to entity's other operations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsTransfersToEntitysOtherOperations_lbl" xml:lang="en-US">Transfers</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal" xlink:label="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal" xlink:to="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal_lbl" xml:lang="en-US">The amount of total revenues from oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal_lbl" xml:lang="en-US">Results of operations, revenue from oil and gas exploration and production activities, total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_ResultsOfOperationsRevenueFromOilAndGasExplorationAndProductionActivitiesTotal_lbl" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsProductionCosts" xlink:label="ec_ResultsOfOperationsProductionCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsProductionCosts" xlink:to="ec_ResultsOfOperationsProductionCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsProductionCosts_lbl" xml:lang="en-US">Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsProductionCosts_lbl" xml:lang="en-US">Results of operations, production costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsProductionCosts_lbl" xml:lang="en-US">Production costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsDepreciationDepletionAndAmortization" xlink:label="ec_ResultsOfOperationsDepreciationDepletionAndAmortization" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsDepreciationDepletionAndAmortization" xlink:to="ec_ResultsOfOperationsDepreciationDepletionAndAmortization_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsDepreciationDepletionAndAmortization_lbl" xml:lang="en-US">The amount of Depreciation, depletion and amortization expenses related to oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsDepreciationDepletionAndAmortization_lbl" xml:lang="en-US">Results of operations, depreciation, depletion and amortization</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsDepreciationDepletionAndAmortization_lbl" xml:lang="en-US">Depreciation, depletion, and amortization</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsOtherProductionCosts" xlink:label="ec_ResultsOfOperationsOtherProductionCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsOtherProductionCosts" xlink:to="ec_ResultsOfOperationsOtherProductionCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsOtherProductionCosts_lbl" xml:lang="en-US">The amount of other production costs for oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsOtherProductionCosts_lbl" xml:lang="en-US">Results of operations, other production costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsOtherProductionCosts_lbl" xml:lang="en-US">Other production costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsOtherExpenses" xlink:label="ec_ResultsOfOperationsOtherExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsOtherExpenses" xlink:to="ec_ResultsOfOperationsOtherExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsOtherExpenses_lbl" xml:lang="en-US">The amount of other costs for oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsOtherExpenses_lbl" xml:lang="en-US">Results of operations, other Expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ResultsOfOperationsOtherExpenses_lbl" xml:lang="en-US">Other expenses</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal" xlink:label="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal" xlink:to="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal_lbl" xml:lang="en-US">The amount of expenses related to oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal_lbl" xml:lang="en-US">Results of operations, expense from oil and gas producing activities, total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_ResultsOfOperationsExpenseFromOilAndGasProducingActivitiesTotal_lbl" xml:lang="en-US">Total</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsIncomeBeforeIncomeTax" xlink:label="ec_ResultsOfOperationsIncomeBeforeIncomeTax" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsIncomeBeforeIncomeTax" xlink:to="ec_ResultsOfOperationsIncomeBeforeIncomeTax_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsIncomeBeforeIncomeTax_lbl" xml:lang="en-US">The amount of income before income tax for oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsIncomeBeforeIncomeTax_lbl" xml:lang="en-US">Results of operations, income before income tax</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ResultsOfOperationsIncomeBeforeIncomeTax_lbl" xml:lang="en-US">Income before income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsIncomeTaxExpenses" xlink:label="ec_ResultsOfOperationsIncomeTaxExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsIncomeTaxExpenses" xlink:to="ec_ResultsOfOperationsIncomeTaxExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsIncomeTaxExpenses_lbl" xml:lang="en-US">The amount of income tax expense for oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsIncomeTaxExpenses_lbl" xml:lang="en-US">Results of operations, income tax expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_ResultsOfOperationsIncomeTaxExpenses_lbl" xml:lang="en-US">Income tax expense</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss" xlink:label="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss" xlink:to="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss_lbl" xml:lang="en-US">The amount of results of operations for oil and gas producing activities.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss_lbl" xml:lang="en-US">Results of operations, oil and gas exploration and producing activities net incomeloss</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_ResultsOfOperationsOilAndGasExplorationAndProducingActivitiesNetIncomeloss_lbl" xml:lang="en-US">Results of operations for exploration and production activities</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ScheduleOfProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable" xlink:label="ec_ScheduleOfProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ScheduleOfProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable" xlink:to="ec_ScheduleOfProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ScheduleOfProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable_lbl" xml:lang="en-US">Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_OilsMember" xlink:label="ec_OilsMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_OilsMember" xlink:to="ec_OilsMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_OilsMember_lbl" xml:lang="en-US">This member stands for oil.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_OilsMember_lbl" xml:lang="en-US">Oil [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_OilsMember_lbl" xml:lang="en-US">Oil</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_GasMember" xlink:label="ec_GasMember" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_GasMember" xlink:to="ec_GasMember_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_GasMember_lbl" xml:lang="en-US">This member stands for gas.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_GasMember_lbl" xml:lang="en-US">Gas [Member]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_GasMember_lbl" xml:lang="en-US">Gas</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems" xlink:label="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems" xlink:to="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems_lbl" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems_lbl" xml:lang="en-US">Reserve Quantities Proved Developed and Undeveloped Oil and Gas Reserve Quantities [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ReserveQuantitiesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesLineItems_lbl" xml:lang="en-US">Supplemental information on oil and gas producing activities (unaudited)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedOilAndGasReservesNet" xlink:label="ec_ProvedOilAndGasReservesNet" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedOilAndGasReservesNet" xlink:to="ec_ProvedOilAndGasReservesNet_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedOilAndGasReservesNet_lbl" xml:lang="en-US">The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedOilAndGasReservesNet_lbl" xml:lang="en-US">Proved Oil and Gas Reserves, Net</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_ProvedOilAndGasReservesNet_lbl" xml:lang="en-US">Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_ProvedOilAndGasReservesNet_lbl" xml:lang="en-US">Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesRevisionsOfPreviousEstimates" xlink:label="ec_ProvedReservesRevisionsOfPreviousEstimates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesRevisionsOfPreviousEstimates" xlink:to="ec_ProvedReservesRevisionsOfPreviousEstimates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesRevisionsOfPreviousEstimates_lbl" xml:lang="en-US">Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesRevisionsOfPreviousEstimates_lbl" xml:lang="en-US">Proved Reserves, Revisions of Previous Estimates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedReservesRevisionsOfPreviousEstimates_lbl" xml:lang="en-US">Proved reserves, Revisions of previous estimates</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesImprovedRecovery" xlink:label="ec_ProvedReservesImprovedRecovery" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesImprovedRecovery" xlink:to="ec_ProvedReservesImprovedRecovery_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesImprovedRecovery_lbl" xml:lang="en-US">Changes in proved reserve estimates resulting from application of improved recovery techniques.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesImprovedRecovery_lbl" xml:lang="en-US">Proved Reserves, Improved Recovery</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedReservesImprovedRecovery_lbl" xml:lang="en-US">Proved reserves, Improved recovery</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesPurchases" xlink:label="ec_ProvedReservesPurchases" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesPurchases" xlink:to="ec_ProvedReservesPurchases_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesPurchases_lbl" xml:lang="en-US">Purchases of proved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesPurchases_lbl" xml:lang="en-US">Proved Reserves Purchases</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedReservesPurchases_lbl" xml:lang="en-US">Proved reserves, Purchases</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesExtensionsDiscoveriesAndAdditions" xlink:label="ec_ProvedReservesExtensionsDiscoveriesAndAdditions" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesExtensionsDiscoveriesAndAdditions" xlink:to="ec_ProvedReservesExtensionsDiscoveriesAndAdditions_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesExtensionsDiscoveriesAndAdditions_lbl" xml:lang="en-US">Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesExtensionsDiscoveriesAndAdditions_lbl" xml:lang="en-US">Proved Reserves, Extensions, Discoveries, and Additions</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedReservesExtensionsDiscoveriesAndAdditions_lbl" xml:lang="en-US">Proved reserves, Extensions and discoveries</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesSales" xlink:label="ec_ProvedReservesSales" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesSales" xlink:to="ec_ProvedReservesSales_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesSales_lbl" xml:lang="en-US">Sales of proved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesSales_lbl" xml:lang="en-US">Proved Reserves Sales</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ProvedReservesSales_lbl" xml:lang="en-US">Proved reserves, Sales</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedReservesProduction" xlink:label="ec_ProvedReservesProduction" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedReservesProduction" xlink:to="ec_ProvedReservesProduction_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedReservesProduction_lbl" xml:lang="en-US">Production of proved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedReservesProduction_lbl" xml:lang="en-US">Proved Reserves, Production</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_ProvedReservesProduction_lbl" xml:lang="en-US">Proved reserves, Production</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedDevelopedReserves" xlink:label="ec_ProvedDevelopedReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedDevelopedReserves" xlink:to="ec_ProvedDevelopedReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedDevelopedReserves_lbl" xml:lang="en-US">Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedDevelopedReserves_lbl" xml:lang="en-US">Proved Developed Reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_ProvedDevelopedReserves_lbl" xml:lang="en-US">Proved developed reserves: Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_ProvedDevelopedReserves_lbl" xml:lang="en-US">Proved developed reserves: Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ProvedUndevelopedReserve" xlink:label="ec_ProvedUndevelopedReserve" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ProvedUndevelopedReserve" xlink:to="ec_ProvedUndevelopedReserve_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ProvedUndevelopedReserve_lbl" xml:lang="en-US">Net quantities of an enterprise's interests in proved undeveloped reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other renewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ProvedUndevelopedReserve_lbl" xml:lang="en-US">Proved Undeveloped Reserve</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ec_ProvedUndevelopedReserve_lbl" xml:lang="en-US">Proved undeveloped reserves: Closing balance</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ec_ProvedUndevelopedReserve_lbl" xml:lang="en-US">Proved undeveloped reserves: Opening balance</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows_lbl" xml:lang="en-US">Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Net Cash Inflows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashInflows_lbl" xml:lang="en-US">Future cash inflows</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract" xlink:label="ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract" xlink:to="ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Costs [Abstract]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCostsAbstract_lbl" xml:lang="en-US">Future costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts_lbl" xml:lang="en-US">Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Net Production Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCosts_lbl" xml:lang="en-US">Production</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts_lbl" xml:lang="en-US">Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Net Development Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetDevelopmentCosts_lbl" xml:lang="en-US">Development</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses_lbl" xml:lang="en-US">Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Income Tax Expenses</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesIncomeTaxExpenses_lbl" xml:lang="en-US">Income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal_lbl" xml:lang="en-US">Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Net Cash Flows, Total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetCashFlowsTotal_lbl" xml:lang="en-US">Future net cash flow</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows_lbl" xml:lang="en-US">Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of ten percent a year.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows_lbl" xml:lang="en-US">Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Net Cash Flows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfNetCashFlows_lbl" xml:lang="en-US">10% discount factor</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal" xlink:to="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal_lbl" xml:lang="en-US">Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal_lbl" xml:lang="en-US">Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Crude Oil and Gas Reserves, Total</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesTotal_lbl" xml:lang="en-US">Standardized measure of discounted net cash flows</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction" xlink:label="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction" xlink:to="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of net change in sales and transfer prices and in production (lifting) cost related to future production.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction_lbl" xml:lang="en-US">Net Increase Decrease in Net Change in Sales and Transfer Prices and In Production Lifting Cost Related To Future Production</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NetIncreaseDecreaseInNetChangeInSalesAndTransferPricesAndInProductionLiftingCostRelatedToFutureProduction_lbl" xml:lang="en-US">Net change in sales and transfer prices and in production cost (lifting) related to future production</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts" xlink:to="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in estimated future development costs.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts_lbl" xml:lang="en-US">Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Crude Oil and Gas Reserves, Changes in Estimated Future Development Costs</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesChangesInEstimatedFutureDevelopmentCosts_lbl" xml:lang="en-US">Changes in estimated future development costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_SalesAndTransferOfCrudeOilAndGasProduced" xlink:label="ec_SalesAndTransferOfCrudeOilAndGasProduced" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_SalesAndTransferOfCrudeOilAndGasProduced" xlink:to="ec_SalesAndTransferOfCrudeOilAndGasProduced_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_SalesAndTransferOfCrudeOilAndGasProduced_lbl" xml:lang="en-US">Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of sales and transfers of oil and gas produced.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_SalesAndTransferOfCrudeOilAndGasProduced_lbl" xml:lang="en-US">Sales and Transfer of Crude Oil and Gas Produced</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_SalesAndTransferOfCrudeOilAndGasProduced_lbl" xml:lang="en-US">Sales and transfer of oil and gas produced net of production costs</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery" xlink:label="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery" xlink:to="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of extensions, discoveries and improved recovery of proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery_lbl" xml:lang="en-US">Extensions, Discoveries, Additions and Improved Recovery</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_ExtensionsDiscoveriesAdditionsAndImprovedRecovery_lbl" xml:lang="en-US">Net change due to extensions, discoveries, and improved recovery</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace" xlink:label="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace" xlink:to="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of purchases and sales of minerals in place.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace_lbl" xml:lang="en-US">Net Change Due to Purchases and Sales of Minerals in Place</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NetChangeDueToPurchasesAndSalesOfMineralsInPlace_lbl" xml:lang="en-US">Net change due to purchase and sales of minerals in place</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates" xlink:label="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates" xlink:to="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of revisions of estimated quantity of oil and gas in proved reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates_lbl" xml:lang="en-US">Net Change Due to Revisions of Previous Quantity Estimates</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NetChangeDueToRevisionsOfPreviousQuantityEstimates_lbl" xml:lang="en-US">Net change due to revisions in quantity estimates</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred" xlink:to="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred_lbl" xml:lang="en-US">Amount of increase in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred_lbl" xml:lang="en-US">Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Crude Oil and Gas Reserves, Previously Estimated Development Costs Incurred</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesPreviouslyEstimatedDevelopmentCostsIncurred_lbl" xml:lang="en-US">Previously estimated development costs incurred during the year</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts" xlink:to="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts_lbl" xml:lang="en-US">Amount of accretion of discount for the standardized measure of discounted future net cash flow related to proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts_lbl" xml:lang="en-US">Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Crude Oil and Gas Reserves, Accretion of Discounts</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedCrudeOilAndGasReservesAccretionOfDiscounts_lbl" xml:lang="en-US">Accretion of discount</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther" xlink:to="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of changes from timing and other sources.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther_lbl" xml:lang="en-US">Standardized Measure of Discounted Future Net Cash Flow of Proved Crude Oil and Gas Reserves, Timing and Other</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedCrudeOilAndGasReservesTimingAndOther_lbl" xml:lang="en-US">Timing and other</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves" xlink:label="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves" xlink:to="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves_lbl" xml:lang="en-US">Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in the estimated future income tax on future pretax net cash flows related to the entity's proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves_lbl" xml:lang="en-US">Net Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_NetChangesInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves_lbl" xml:lang="en-US">Net change in income taxes</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows" xlink:label="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows" xlink:to="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows_lbl" xml:lang="en-US">Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows_lbl" xml:lang="en-US">Aggregate change in the Standardized measure of discounted future net cash flows</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ec_AggregateChangeInStandardizedMeasureOfDiscountedFutureNetCashFlows_lbl" xml:lang="en-US">Aggregate change in the standardized measure of discounted future net cash flows for the year</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExplorationForAndEvaluationOfMineralResourceTable" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceTable" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExplorationForAndEvaluationOfMineralResourceTable" xlink:to="ec_ExplorationForAndEvaluationOfMineralResourceTable_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceTable_lbl" xml:lang="en-US">Not available.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceTable_lbl" xml:lang="en-US">Exploration For and Evaluation of Mineral Resource [Table]</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_ExplorationForAndEvaluationOfMineralResourceLineItems" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceLineItems" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_ExplorationForAndEvaluationOfMineralResourceLineItems" xlink:to="ec_ExplorationForAndEvaluationOfMineralResourceLineItems_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceLineItems_lbl" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceLineItems_lbl" xml:lang="en-US">Exploration for and Evaluation of Mineral Resource [Line Items]</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_ExplorationForAndEvaluationOfMineralResourceLineItems_lbl" xml:lang="en-US">Supplemental information on oil and gas producing activities (unaudited)</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations" xlink:label="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations" xlink:to="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations_lbl" xml:lang="en-US">Amount of natural and environmental properties, which includes, but is not limited to, natural and environmental properties from asset retirement obligations.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations_lbl" xml:lang="en-US">Natural and Environmental Properties, Including Asset Retirement Obligations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_NaturalAndEnvironmentalPropertiesIncludingAssetRetirementObligations_lbl" xml:lang="en-US">Provisions for asset retirement obligations included in cost capitalized to natural and environmental properties</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_AccretionExpenseRelatedToAssetRetirementObligations" xlink:label="ec_AccretionExpenseRelatedToAssetRetirementObligations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_AccretionExpenseRelatedToAssetRetirementObligations" xlink:to="ec_AccretionExpenseRelatedToAssetRetirementObligations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_AccretionExpenseRelatedToAssetRetirementObligations_lbl" xml:lang="en-US">The amount of accretion expense related to asset retirement obligations is recognized during the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_AccretionExpenseRelatedToAssetRetirementObligations_lbl" xml:lang="en-US">Accretion expense related to the asset retirement obligations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ec_AccretionExpenseRelatedToAssetRetirementObligations_lbl" xml:lang="en-US">Expense related to the asset retirement obligations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations" xlink:label="ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations" xlink:to="ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations_lbl" xml:lang="en-US">The amount of depreciation, depletion and amortization related to asset retirement obligations is recognized during the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_DepreciationDepletionAndAmortizationRelatedToAssetRetirementObligations_lbl" xml:lang="en-US">Depreciation, depletion and amortization related to asset retirement obligations</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfCrudeOilAndGasProductionBasedOnValue" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue" xlink:to="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue_lbl" xml:lang="en-US">It represents the percentage rate of crude oil and gas production based on value which transferred during the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue_lbl" xml:lang="en-US">Percentage of crude oil and gas production based on value</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnValue_lbl" xml:lang="en-US">Percentage of transferred crude oil and gas production based on value to intercompany units</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume" xlink:to="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume_lbl" xml:lang="en-US">It represents the percentage rate of crude oil and gas production based on volume which transferred during the reporting period.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume_lbl" xml:lang="en-US">Percentage of crude oil and gas production based on volume</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_PercentageOfCrudeOilAndGasProductionBasedOnVolume_lbl" xml:lang="en-US">Percentage of transferred crude oil and gas production based on volume to intercompany units</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_EstimatedReservePercentageSpecializedFirms" xlink:label="ec_EstimatedReservePercentageSpecializedFirms" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_EstimatedReservePercentageSpecializedFirms" xlink:to="ec_EstimatedReservePercentageSpecializedFirms_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_EstimatedReservePercentageSpecializedFirms_lbl" xml:lang="en-US">Its represents percentage of estimated reserve percentage of specialized firms.</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_EstimatedReservePercentageSpecializedFirms_lbl" xml:lang="en-US">Estimated Reserve Percentage Specialized Firms</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_EstimatedReservePercentageSpecializedFirms_lbl" xml:lang="en-US">Percentage of estimated reserve specialized firms</link:label>
    <link:loc xlink:type="locator" xlink:href="ec-20251231.xsd#ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations" xlink:to="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations_lbl" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations_lbl" xml:lang="en-US">Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves related to asset retirement obligations..</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations_lbl" xml:lang="en-US">Future Net Cash Flows Relating To Proved Crude Oil And Gas Reserves Net Production Costs, Estimated Costs For Asset Retirement obligations</link:label>
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ec_FutureNetCashFlowsRelatingToProvedCrudeOilAndGasReservesNetProductionCostsEstimatedCostsForAssetRetirementObligations_lbl" xml:lang="en-US">Estimated costs related to assets retirement obligations</link:label>
  </link:labelLink>
</link:linkbase>
