Joint operations (Tables)

12 Months Ended

Dec. 31, 2025

Schedule of interests in joint arrangements

32.1Contracts in which the Ecopetrol Group is not the operator


						%		Geographic area of
Partners		Contract		Type		Participation		operations
		Chipirón				30%+Production Factor (1)
SierraCol Energy Arauca, LLC		Cosecha		Production		30%		Colombia
		Cravo Norte				55%+High Prices of Oil
		Rondón				65%
Frontera Energy Colombia Corp		Quifa		Production		40%+PAP		Colombia
Hocol S.A.		Guajira		Production		57%		Colombia
Union Temporal Ismocol Joshi Parko		CPI Palagua		Production		100% According amendment number 5		Colombia (Puerto Boyacá – Santander)
		LLA-122
Parex Resources Colombia LTD		LLA-121		Exploration		50%		Colombia (Piedemonte Central)
		LLA-4-1
		E&P COL 1
Anadarko Colombia Company (OXY)		E&P COL 2		Exploration		40%		Offshore North Caribe
		E&P COL 6
		E&P COL 7
Petrobras		E&E GUA OFF-0		Exploration		55.56%		Offshore North Caribe
		Mana
Interoil Colombia		Rio Opia		Production		30%		Colombia
		Ambrosia
		Llanos 86
		Llanos 87
Geopark Colombia SAS		Llanos 104		Exploration		50%		Colombia
		Llanos 123
		Llanos 124
		SSJN1		Production
		Perdices
Lewis Energy Colombia		VIM-42		Exploration		50%		Colombia
		SSJN3-1
Perenco Oil & Gas		El Guando		Production		75%		Colombia
		El Niño				40%
Quarter North Energy		Gunflint		Production		32%		Gulf of Mexico
Murphy Exploration and Production Company – USA		Dalmatian		Production		30%		Gulf of Mexico
OXY (Anadarko) - K2		K2		Production		21%		Gulf of Mexico
HESS		ESOX		Production		21%		Gulf of Mexico
		S-M-1707
		S-M-1715
		S-M-1717
		S-M-1719
		S-M-1709
		S-M-1908
Shell		S-M-1601		Exploration		30%		Brazil
		S-M-1713
		S-M-1817
		S-M-1599
		S-M-1910
		Sul de Gato do Mato
		BM-S-54
BP Energy		Pau Brasil		Exploration		20%		Brazil
Occidental Midland Basin, LLC (Oxy)		Rodeo Midland Basin		Production		49%		Midland, Texas, USA
		Delaware Basin						Delaware, TX/NM, USA
PC Carigali Mexico Operation S.A.		Bloque 6		Exploration		50%		Gulf of Mexico

(1)	The R Factor is a contractual mechanism defined as the ratio between accumulated net revenues and accumulated costs/investments of a field.

Contract where Entity is operator

Joint operations

Schedule of interests in joint arrangements

32.2Contracts in which the Ecopetrol Group is the operator


						%		Geographic area of
Partners		Contract		Type		Participation		operations
		VMM29
ExxonMobil Exploration Colombia		CR2		Exploration		50%		Colombia
		C62
CPVEN E&P Corp Sucursal Colombia		VMM32		Exploration		51%		Colombia
Repsol Exploration Colombia S.A.		Catleya		Exploration		50%		Colombia
Emerald Energy PLC Suc. Colombia		Cardon		Exploration		50%		Colombia
		ORC401 CRC-2004-01		Exploration		50%
		OJANOM
Parex Resourses Colombia Ltd.		OJAOCN		Production		100%		Colombia
		OJAORM
		OJASUM
SierraCol Energy Arauca		La Cira Infantas		Production		52%+PAP		Colombia
		Teca				100% Basic y 60% incremental
Emerald Energy		Oleoducto Alto Magdalena		Production		45%		Colombia
Colombia Energy Development CO		Rio Paez		Production		68%		Colombia
Ecopetrol		Asociación Guajira		Production		43%		Colombia
Perenco Oil and Gas		Asociación Boqueron		Production		40%		Colombia
Ecopetrol		San Jacinto		Production		50%		Colombia
Ecopetrol		San Jacinto (Mandato)		Production		0%		Colombia