Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

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 June 30, 2014 and December 31, 2013 (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, 2014
Financial Assets:
Natural Gas Options/Swaptions	$	—	$	5	$	—	$	5
Financial Liabilities:
Crude Oil Swaps	$	—	$	157	$	—	$	157
Crude Oil Options/Swaptions	—		170		—		170
Natural Gas Options/Swaptions	—		11		—		11
At December 31, 2013
Financial Assets:
Natural Gas Options/Swaptions	$	—	$	8	$	—	$	8
Financial Liabilities:
Crude Oil Swaps	$	—	$	17	$	—	$	17
Crude Oil Options/Swaptions	—		110		—		110
Foreign Currency Rate Swap	—		40		—		40
Interest Rate Swap	—		1		—		1