Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis

The following table provides fair value measurement information within the fair value hierarchy for certain of EOG's financial assets and liabilities carried at fair value on a recurring basis at June 30, 2025 and December 31, 2024 (in millions):

	Fair Value Measurements Using:
	Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
At June 30, 2025
Financial Assets:
Natural Gas Basis Swaps	$	—	$	1	$	—	$	1
Brent Crude Oil (Brent) Linked Gas Sales Contract	—		—		56		56
Financial Liabilities:
Natural Gas Swaps	—		86		—		86
At December 31, 2024
Financial Assets:
Natural Gas Basis Swaps	$	—	$	1	$	—	$	1
Brent Linked Gas Sales Contract	—		—		110		110
Financial Liabilities:
Natural Gas Swaps	—		117		—		117