<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva, formerly WebFilings-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.pioneerdrilling.com/20140630" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:pes="http://www.pioneerdrilling.com/20140630" xmlns:us-types="http://fasb.org/us-types/2013-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-roles-2013-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-types-2013-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2012-01-31" schemaLocation="http://xbrl.sec.gov/currency/2012/currency-2012-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2013-01-31" schemaLocation="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2013-01-31" schemaLocation="http://xbrl.sec.gov/exch/2013/exch-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="pes-20140630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="pes-20140630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="pes-20140630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="pes-20140630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="CommitmentsAndContingencies" roleURI="http://www.pioneerdrilling.com/role/CommitmentsAndContingencies">
        <link:definition>2113100 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesDetails" roleURI="http://www.pioneerdrilling.com/role/CommitmentsAndContingenciesDetails">
        <link:definition>2413401 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheet" roleURI="http://www.pioneerdrilling.com/role/ConsolidatedBalanceSheet">
        <link:definition>1001000 - Statement - Consolidated Balance Sheet</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetParenthetical" roleURI="http://www.pioneerdrilling.com/role/ConsolidatedBalanceSheetParenthetical">
        <link:definition>1001501 - Statement - Consolidated Balance Sheet (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://www.pioneerdrilling.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1005000 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlowsParenthetical" roleURI="http://www.pioneerdrilling.com/role/ConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>1005501 - Statement - Consolidated Statements Of Cash Flows (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfOperations" roleURI="http://www.pioneerdrilling.com/role/ConsolidatedStatementsOfOperations">
        <link:definition>1002000 - Statement - Consolidated Statements Of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://www.pioneerdrilling.com/role/Debt">
        <link:definition>2104100 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtDetails" roleURI="http://www.pioneerdrilling.com/role/DebtDetails">
        <link:definition>2404402 - Disclosure - Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleOfLongTermDebtDetails" roleURI="http://www.pioneerdrilling.com/role/DebtScheduleOfLongTermDebtDetails">
        <link:definition>2404403 - Disclosure - Debt (Schedule of Long-term Debt) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://www.pioneerdrilling.com/role/DebtTables">
        <link:definition>2304301 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.pioneerdrilling.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerCommonShare" roleURI="http://www.pioneerdrilling.com/role/EarningsPerCommonShare">
        <link:definition>2109100 - Disclosure - Earnings Per Common Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerCommonShareNarrativeDetails" roleURI="http://www.pioneerdrilling.com/role/EarningsPerCommonShareNarrativeDetails">
        <link:definition>2409402 - Disclosure - Earnings Per Common Share (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerCommonShareReconciliationOfEarningsLossPerCommonShareDetails" roleURI="http://www.pioneerdrilling.com/role/EarningsPerCommonShareReconciliationOfEarningsLossPerCommonShareDetails">
        <link:definition>2409403 - Disclosure - Earnings Per Common Share (Reconciliation of Earnings (loss) Per Common Share) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerCommonShareTables" roleURI="http://www.pioneerdrilling.com/role/EarningsPerCommonShareTables">
        <link:definition>2309301 - Disclosure - Earnings Per Common Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlans" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlans">
        <link:definition>2110100 - Disclosure - Equity Transactions and Stock-Based Compensation Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlansAllocationOfShareBasedCompensationExpenseDetails" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlansAllocationOfShareBasedCompensationExpenseDetails">
        <link:definition>2410403 - Disclosure - Equity Transactions and Stock-Based Compensation Plans (Allocation of Share-based Compensation Expense) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlansAssumptionsUsedForStockOptionsGrantedDetails" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlansAssumptionsUsedForStockOptionsGrantedDetails">
        <link:definition>2410404 - Disclosure - Equity Transactions and Stock-Based Compensation Plans (Assumptions Used for Stock Options Granted) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlansNarrativeDetails" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlansNarrativeDetails">
        <link:definition>2410402 - Disclosure - Equity Transactions and Stock-Based Compensation Plans (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlansScheduleOfRestrictedStockUnitActivityDetails" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlansScheduleOfRestrictedStockUnitActivityDetails">
        <link:definition>2410405 - Disclosure - Equity Transactions and Stock-Based Compensation Plans (Schedule of Restricted Stock Unit Activity) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityTransactionsAndStockBasedCompensationPlansTables" roleURI="http://www.pioneerdrilling.com/role/EquityTransactionsAndStockBasedCompensationPlansTables">
        <link:definition>2310301 - Disclosure - Equity Transactions and Stock-Based Compensation Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstruments" roleURI="http://www.pioneerdrilling.com/role/FairValueOfFinancialInstruments">
        <link:definition>2108100 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstrumentsDetails" roleURI="http://www.pioneerdrilling.com/role/FairValueOfFinancialInstrumentsDetails">
        <link:definition>2408402 - Disclosure - Fair Value of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstrumentsTables" roleURI="http://www.pioneerdrilling.com/role/FairValueOfFinancialInstrumentsTables">
        <link:definition>2308301 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GuarantorNonGuarantorCondensedConsolidatedFinancialStatements" roleURI="http://www.pioneerdrilling.com/role/GuarantorNonGuarantorCondensedConsolidatedFinancialStatements">
        <link:definition>2115100 - Disclosure - Guarantor/Non-Guarantor Condensed Consolidated Financial Statements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsBalanceSheetUnauditedDetails" roleURI="http://www.pioneerdrilling.com/role/GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsBalanceSheetUnauditedDetails">
        <link:definition>2415402 - Disclosure - Guarantor/Non-Guarantor Condensed Consolidated Financial Statements (Balance Sheet (Unaudited)) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsCashFlowsUnauditedDetails" roleURI="http://www.pioneerdrilling.com/role/GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsCashFlowsUnauditedDetails">
        <link:definition>2415404 - Disclosure - Guarantor/Non-Guarantor Condensed Consolidated Financial Statements (Cash Flows (Unaudited)) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsTables" roleURI="http://www.pioneerdrilling.com/role/GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsTables">
        <link:definition>2315301 - Disclosure - Guarantor/Non-Guarantor Condensed Consolidated Financial Statements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPolicies" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPolicies">
        <link:definition>2101100 - Disclosure - Organization and Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesChangesInAllowanceForDoubtfulAccountsDetails" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesChangesInAllowanceForDoubtfulAccountsDetails">
        <link:definition>2401406 - Disclosure - Organization and Summary of Significant Accounting Policies (Changes in Allowance for Doubtful Accounts) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesDrillingContractsDetails" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesDrillingContractsDetails">
        <link:definition>2401405 - Disclosure - Organization and Summary of Significant Accounting Policies (Drilling Contracts) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesDrillingServicesSegmentDetails" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesDrillingServicesSegmentDetails">
        <link:definition>2401404 - Disclosure - Organization and Summary of Significant Accounting Policies (Drilling Services Segment) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails">
        <link:definition>2401407 - Disclosure - Organization and Summary of Significant Accounting Policies (Intangible Assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesNarrativeDetails" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesNarrativeDetails">
        <link:definition>2401403 - Disclosure - Organization and Summary of Significant Accounting Policies (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2201201 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndSummaryOfSignificantAccountingPoliciesTables" roleURI="http://www.pioneerdrilling.com/role/OrganizationAndSummaryOfSignificantAccountingPoliciesTables">
        <link:definition>2301302 - Disclosure - Organization and Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReconciliationOfRevenueFromSegmentsToConsolidatedDetails" roleURI="http://www.pioneerdrilling.com/role/ReconciliationOfRevenueFromSegmentsToConsolidatedDetails">
        <link:definition>2412405 - Disclosure - (Reconciliation of Revenue from Segments to Consolidated) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://www.pioneerdrilling.com/role/SegmentInformation">
        <link:definition>2112100 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://www.pioneerdrilling.com/role/SegmentInformationNarrativeDetails">
        <link:definition>2412402 - Disclosure - Segment Information (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleOfDrillingServiceSegmentDivisionsDetails" roleURI="http://www.pioneerdrilling.com/role/SegmentInformationScheduleOfDrillingServiceSegmentDivisionsDetails">
        <link:definition>2412403 - Disclosure - Segment Information (Schedule of Drilling Service Segment Divisions) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsDetails" roleURI="http://www.pioneerdrilling.com/role/SegmentInformationScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsDetails">
        <link:definition>2412406 - Disclosure - Segment Information (Schedule of Revenues from External Customers and Long-Lived Assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleOfSegmentReportingInformationDetails" roleURI="http://www.pioneerdrilling.com/role/SegmentInformationScheduleOfSegmentReportingInformationDetails">
        <link:definition>2412404 - Disclosure - Segment Information (Schedule of Segment Reporting Information) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.pioneerdrilling.com/role/SegmentInformationTables">
        <link:definition>2312301 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsOfOperationsUnauditedDetails" roleURI="http://www.pioneerdrilling.com/role/StatementsOfOperationsUnauditedDetails">
        <link:definition>2415403 - Disclosure - (Statements of Operations (Unaudited)) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="pes_AccountingPoliciesLineItems" name="AccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AccountingPoliciesTable" name="AccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_AccountsReceivableAgeIndividuallyReviewedForCollectibility" name="AccountsReceivableAgeIndividuallyReviewedForCollectibility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_AccruedInsuranceClaimsAndSettlements" name="AccruedInsuranceClaimsAndSettlements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pes_AccruedInsurancePremiumsAndDeductibles" name="AccruedInsurancePremiumsAndDeductibles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_ActiveMember" name="ActiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AlternativeAxis" name="AlternativeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AlternativeDomain" name="AlternativeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AlternativeTestingForComplianceMember" name="AlternativeTestingForComplianceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AppalachiaMember" name="AppalachiaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_ApprovedGrantOfStockBasedCompensationMember" name="ApprovedGrantOfStockBasedCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_AssetsLeasedFromOthersMember" name="AssetsLeasedFromOthersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_AssignedDrillingRigsNumberofContractsExpiringSixMonthstoTwelveMonths" name="AssignedDrillingRigsNumberofContractsExpiringSixMonthstoTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_AssignedDrillingRigsNumberofContractsExpiringinEighteenMonthstoTwentyFourMonths" name="AssignedDrillingRigsNumberofContractsExpiringinEighteenMonthstoTwentyFourMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_AssignedDrillingRigsNumberofContractsExpiringinSixMonths" name="AssignedDrillingRigsNumberofContractsExpiringinSixMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_AssignedDrillingRigsNumberofContractsExpiringinTwelveMonthstoEighteenMonths" name="AssignedDrillingRigsNumberofContractsExpiringinTwelveMonthstoEighteenMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_AssignedDrillingRigsNumberofContractsExpiringinTwentyFourMonthstoFourtyEightMonths" name="AssignedDrillingRigsNumberofContractsExpiringinTwentyFourMonthstoFourtyEightMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_AverageTermToDrillIndividualWellMaximum" name="AverageTermToDrillIndividualWellMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_BillingInvoiceIntervalPeriod" name="BillingInvoiceIntervalPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_BusinessAbstract" name="BusinessAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_CapitalExpenditureLimitationDuringFiscalYearToBeImposedIfCovenantNoncomplianceExceedingStatedSeniorConsolidatedLeverageRatio" name="CapitalExpenditureLimitationDuringFiscalYearToBeImposedIfCovenantNoncomplianceExceedingStatedSeniorConsolidatedLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_CapitalExpenditureLimitationMaximumAmountUnusedFromPriorFiscalYearAvailableToIncreaseCurrentYearCapitalExpenditureThresholdIfRestrictionsImposedDueToNoncompliance" name="CapitalExpenditureLimitationMaximumAmountUnusedFromPriorFiscalYearAvailableToIncreaseCurrentYearCapitalExpenditureThresholdIfRestrictionsImposedDueToNoncompliance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_CoiledTubingUnits" name="CoiledTubingUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_ConractualAgreementDomain" name="ConractualAgreementDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_ContractAgreementByTypeAxis" name="ContractAgreementByTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_CurrentlyUnderDrillingContractMember" name="CurrentlyUnderDrillingContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DayworkDrillingContractMember" name="DayworkDrillingContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_DebtInstrumentCarryingValueToFaceValuePercentage" name="DebtInstrumentCarryingValueToFaceValuePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceCapitalExpenditureLimitationThresholdRatioofIndebtednesstoNetCapitalSenior" name="DebtInstrumentCovenantComplianceCapitalExpenditureLimitationThresholdRatioofIndebtednesstoNetCapitalSenior" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceLineofCreditFacilityRemainingBorrowingCapacityAfterCapitalExpendituresAdjustmentToAvoidFutureCapitalExpendituresRestrictions" name="DebtInstrumentCovenantComplianceLineofCreditFacilityRemainingBorrowingCapacityAfterCapitalExpendituresAdjustmentToAvoidFutureCapitalExpendituresRestrictions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceRatioofAssetCoverage" name="DebtInstrumentCovenantComplianceRatioofAssetCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceRatioofIndebtednesstoNetCapital" name="DebtInstrumentCovenantComplianceRatioofIndebtednesstoNetCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceRatioofIndebtednesstoNetCapitalSenior" name="DebtInstrumentCovenantComplianceRatioofIndebtednesstoNetCapitalSenior" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentCovenantComplianceRatioofInterestCoverage" name="DebtInstrumentCovenantComplianceRatioofInterestCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentFaceAmountRemainingBalancerelatedtoTenderOffer" name="DebtInstrumentFaceAmountRemainingBalancerelatedtoTenderOffer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRatioofIndebtednesstoNetCapitalSenior" name="DebtInstrumentRatioofIndebtednesstoNetCapitalSenior" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRatioofInterestCoverage" name="DebtInstrumentRatioofInterestCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRedeemableWithEquityIssuanceProceedsRequiredRepurchaseDueToAssetDispositionRedemptionPricePercentage" name="DebtInstrumentRedeemableWithEquityIssuanceProceedsRequiredRepurchaseDueToAssetDispositionRedemptionPricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRedeemableWithEquityIssuanceProceedsRequiredRepurchaseDueToChangeInControlRedemptionPricePercentage" name="DebtInstrumentRedeemableWithEquityIssuanceProceedsRequiredRepurchaseDueToChangeInControlRedemptionPricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRedeemablewithDebtIssuanceProceedsMinimumPercentageOutstandingAfterRedemption" name="DebtInstrumentRedeemablewithDebtIssuanceProceedsMinimumPercentageOutstandingAfterRedemption" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRedemptionValue" name="DebtInstrumentRedemptionValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentRepurchasePriceper1000principalamount" name="DebtInstrumentRepurchasePriceper1000principalamount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentStatedPercentageOfOutstandingEquityInterestsOfFirstTierForeignSubsidiariesThatSecureDebtObligations" name="DebtInstrumentStatedPercentageOfOutstandingEquityInterestsOfFirstTierForeignSubsidiariesThatSecureDebtObligations" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentSubjecttoEarlyRedemptionPercentageofAggregatePrincipalOutstandingafterRedemptiononMarch152017" name="DebtInstrumentSubjecttoEarlyRedemptionPercentageofAggregatePrincipalOutstandingafterRedemptiononMarch152017" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentSubjecttoEarlyRedemptionPercentageofAggregatePrincipalRedeemablepriortoMarch152017" name="DebtInstrumentSubjecttoEarlyRedemptionPercentageofAggregatePrincipalRedeemablepriortoMarch152017" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentTenderOfferPrincipalAmountMaximum" name="DebtInstrumentTenderOfferPrincipalAmountMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pes_DebtInstrumentUnamortizedDiscountonNotesTendered" name="DebtInstrumentUnamortizedDiscountonNotesTendered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_DebtInstrumentsRedemptionAxis" name="DebtInstrumentsRedemptionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DebtInstrumentsRedemptionDomain" name="DebtInstrumentsRedemptionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_DebtinstrumentRedeemablewithDebtIssuanceProceedsRedemptionPricePercentage" name="DebtinstrumentRedeemablewithDebtIssuanceProceedsRedemptionPricePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingDivisionLocationsAxis" name="DrillingDivisionLocationsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingDivisionLocationsDomain" name="DrillingDivisionLocationsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_DrillingRigs" name="DrillingRigs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_DrillingRigsByContractAgreementAxis" name="DrillingRigsByContractAgreementAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingRigsByStatusAxis" name="DrillingRigsByStatusAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingRigsContractualAgreementDomain" name="DrillingRigsContractualAgreementDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_DrillingRigsContractualTerms" name="DrillingRigsContractualTerms" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingRigsMember" name="DrillingRigsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingRigsStatusDomain" name="DrillingRigsStatusDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_DrillingRigsUnderTermContractToBeBuilt" name="DrillingRigsUnderTermContractToBeBuilt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_DrillingServicesCostsAndExpenses" name="DrillingServicesCostsAndExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_DrillingServicesSegmentMember" name="DrillingServicesSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_EquityTransactionsAndStockBasedCompensationPlans" name="EquityTransactionsAndStockBasedCompensationPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_EquityTransactionsAndStockBasedCompensationPlansAbstract" name="EquityTransactionsAndStockBasedCompensationPlansAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_EquityTransactionsAndStockBasedCompensationPlansTextBlock" name="EquityTransactionsAndStockBasedCompensationPlansTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_EstimatedToBecomeActiveBetween9And12MonthsMember" name="EstimatedToBecomeActiveBetween9And12MonthsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_ExpectedtobecomeactivewithinapproximatelyonemonthMember" name="ExpectedtobecomeactivewithinapproximatelyonemonthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_FishingandRentalToolsandEquipmentMember" name="FishingandRentalToolsandEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_FiveHundredFiftyHorsepowerMember" name="FiveHundredFiftyHorsepowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_GoCoilMember" name="GoCoilMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_GuarantorNonGuarantorCondensedConsolidatedFinancialStatements" name="GuarantorNonGuarantorCondensedConsolidatedFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsAbstract" name="GuarantorNonGuarantorCondensedConsolidatedFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_GuarantorNonGuarantorStatementLineItems" name="GuarantorNonGuarantorStatementLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_GuarantorNonGuarantorStatementTable" name="GuarantorNonGuarantorStatementTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_IncomeTaxesReceivableandOtherCurrent" name="IncomeTaxesReceivableandOtherCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pes_IntercompanyLeasingExpense" name="IntercompanyLeasingExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_OilAndGasDrillingServicesRevenue" name="OilAndGasDrillingServicesRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pes_PaymentTermInDaysForServicesInvoicedAverage" name="PaymentTermInDaysForServicesInvoicedAverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_PaymentTermInDaysForServicesInvoicedMaximum" name="PaymentTermInDaysForServicesInvoicedMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_Percentof201120122013RSUssubjecttomarketconditionbasedontotalshareholderreturn" name="Percentof201120122013RSUssubjecttomarketconditionbasedontotalshareholderreturn" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_PerformanceBasedRSUs2014Member" name="PerformanceBasedRSUs2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_PerformanceBasedRsus2011Member" name="PerformanceBasedRsus2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_PerformanceBasedRsus2012Member" name="PerformanceBasedRsus2012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_PerformanceBasedRsus2013Member" name="PerformanceBasedRsus2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_PerformanceBasedRsusMember" name="PerformanceBasedRsusMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_PerformancebasedRSUperformanceperiod" name="PerformancebasedRSUperformanceperiod" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ProductionServicesCostsAndExpenses" name="ProductionServicesCostsAndExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_ProductionServicesDivisionMember" name="ProductionServicesDivisionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ProductionServicesRevenue" name="ProductionServicesRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pes_PropertyPlantandEquipmentFleetSoldNumber" name="PropertyPlantandEquipmentFleetSoldNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_PropertyandEquipmentAbstract" name="PropertyandEquipmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ProvisionForBadDebtNetOfRecoveries" name="ProvisionForBadDebtNetOfRecoveries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_RedemptionPriortoMarch152017Member" name="RedemptionPriortoMarch152017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_RegistrationStatementStatedMaximumAmountAvailableForEquityOrDebtOfferings" name="RegistrationStatementStatedMaximumAmountAvailableForEquityOrDebtOfferings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_RestrictedCashMember" name="RestrictedCashMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock" name="ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ScheduleOfLongLivedAssetsByReportingSegmentTableTextBlock" name="ScheduleOfLongLivedAssetsByReportingSegmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ScheduleofDrillingContractsTableTextBlock" name="ScheduleofDrillingContractsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SegmentReportingInformationDisposedDrililngRigs" name="SegmentReportingInformationDisposedDrililngRigs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SegmentReportingInformationDisposedWirelineUnits" name="SegmentReportingInformationDisposedWirelineUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SegmentReportingInformationDrillingRigsHeldForSale" name="SegmentReportingInformationDrillingRigsHeldForSale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_SegmentReportingInformationDrillingRigsHeldForUse" name="SegmentReportingInformationDrillingRigsHeldForUse" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_SeniorNotes2010Member" name="SeniorNotes2010Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_SeniorNotes2010and2011Member" name="SeniorNotes2010and2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_SeniorNotes2011Member" name="SeniorNotes2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_SeniorNotes2014Member" name="SeniorNotes2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_SeniorNotesIssuedMember" name="SeniorNotesIssuedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SensitivityAnalysisofFairValueChangeinImpairmentDetoChangeinAssumptionImpactofOnePercentIncreaseofUtilizationAssumption" name="SensitivityAnalysisofFairValueChangeinImpairmentDetoChangeinAssumptionImpactofOnePercentIncreaseofUtilizationAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pes_SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofFivePercentDecreaseofDiscountRateAssumption" name="SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofFivePercentDecreaseofDiscountRateAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pes_SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentDecreaseofPricingAssumption" name="SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentDecreaseofPricingAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentDecreaseofUtilizationAssumption" name="SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentDecreaseofUtilizationAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentIncreaseofPricingAssumption" name="SensitivityAnalysisofFairValueChangeinImpairmentDuetoChangeinAssumptionImpactofOnePercentIncreaseofPricingAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pes_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalNumberOfSharesGranted" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalNumberOfSharesGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_ShareBasedCompensationArrangementByShareBasedPaymentAwardBasisForDeterminingAwardOnIndividualPerformanceFactorsPercentage" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardBasisForDeterminingAwardOnIndividualPerformanceFactorsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ShareBasedCompensationArrangementByShareBasedPaymentAwardBasisForDeterminingAwardOnMarketFactorsPercentage" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardBasisForDeterminingAwardOnMarketFactorsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAdjustedToPerformanceConditionEvaluationNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAdjustedToPerformanceConditionEvaluationNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedAchievementLevelPercentage" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedAchievementLevelPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pes_SharebasedCompensationArrangementbySharebasedPaymentAwardActualAchievementLevelPercentage" name="SharebasedCompensationArrangementbySharebasedPaymentAwardActualAchievementLevelPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_SixHundredHorsepowerMember" name="SixHundredHorsepowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_SouthTexasMember" name="SouthTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SupplementalGuarantorCondensedConsolidatedBalanceSheetsTableTextBlock" name="SupplementalGuarantorCondensedConsolidatedBalanceSheetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SupplementalGuarantorCondensedConsolidatedStatementsOfCashFlowsTableTextBlock" name="SupplementalGuarantorCondensedConsolidatedStatementsOfCashFlowsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SupplementalGuarantorCondensedConsolidatedStatementsOfOperationsTableTextBlock" name="SupplementalGuarantorCondensedConsolidatedStatementsOfOperationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_SupplementalGuarantorInformationDisclosureTextBlock" name="SupplementalGuarantorInformationDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_TermContractMember" name="TermContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_TimeBasedRsusMember" name="TimeBasedRsusMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_TurnkeyDrillingContractMember" name="TurnkeyDrillingContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_UnamortizedDeferredFinanceCostsonNotesTendered" name="UnamortizedDeferredFinanceCostsonNotesTendered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pes_UnamortizedDeferredFinanceCostsonNotesTenderedincludedinDebtExtinguishmentCosts" name="UnamortizedDeferredFinanceCostsonNotesTenderedincludedinDebtExtinguishmentCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pes_UnbilledAccountsReceivableAbstract" name="UnbilledAccountsReceivableAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_ValuationAllowancesAndReservesIncreaseDecreaseChargedToCostAndExpense" name="ValuationAllowancesAndReservesIncreaseDecreaseChargedToCostAndExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pes_WellServiceRigs" name="WellServiceRigs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pes_WestTexasMember" name="WestTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pes_WirelineUnits" name="WirelineUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
</xsd:schema>


