Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

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 March 31, 2022 and December 31, 2021 (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 March 31, 2022
Financial Assets:
Natural Gas Basis Swaps	$	—	$	23	$	—	$	23
Financial Liabilities:
Crude Oil Swaps	—		1,663		—		1,663
Natural Gas Swaps	—		1,091		—		1,091
Crude Oil Roll Differential Swaps	—		54		—		54
At December 31, 2021
Financial Assets:
Natural Gas Swaps	$	—	$	29	$	—	$	29
Natural Gas Basis Swaps	—		2		—		2
Crude Oil Swaps	—		15		—		15
Financial Liabilities:
Crude Oil Roll Differential Swaps	—		24		—		24
Natural Gas Swaps	—		121		—		121
Crude Oil Swaps	—		340		—		340
Natural Gas Basis Swaps	—		1		—		1