Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2011

Notes To Financial Statements [Abstract]

Fair Value Assets And Liabilities Measured On Recurring Basis [Table]

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 December 31, 2011 and 2010 (in millions):

	Fair Value Measurements Using:
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
At December 31, 2011
Financial Assets:
Crude Oil and Natural Gas Derivative Contracts	$	-	$	110	$	-	$	110
Crude Oil and Natural Gas Options/Swaptions		-		376		-		376
Financial Liabilities:
Foreign Currency Rate Swap	$	-	$	52	$	-	$	52
Interest Rate Swap		-		3		-		3
At December 31, 2010
Financial Assets:
Natural Gas Derivative Contracts	$	-	$	62	$	-	$	62
Natural Gas Options/Swaptions		-		6		-		6
Interest Rate Swap		-		2		-		2
Financial Liabilities:
Crude Oil and Natural Gas Derivative Contracts	$	-	$	29	$	-	$	29
Foreign Currency Rate Swap		-		55		-		55
Contingent Consideration		-		-		14		14