Risk Management Activities (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Commodity Derivative Contracts - Crude Oil Price Swaps

Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the year ended December 31, 2016, with notional volumes expressed in barrels per day (Bbld) and prices expressed in dollars per barrel ($/Bbl).

Crude Oil Price Swap Contracts
	Volume (Bbld)	Weighted Average Price ($/Bbl)
2016
April 12, 2016 through April 30, 2016 (closed)	90,000	$	42.30
May 1, 2016 through June 30, 2016 (closed)	128,000	42.56
2017
January 1, 2017 through June 30, 2017	35,000	$	50.04

Commodity Derivative Contracts - Crude Oil Collars

Presented below is a comprehensive summary of EOG's crude oil collar contracts for the year ended December 31, 2016, with notional volumes expressed in Bbld and prices expressed in $/Bbl.

Crude Oil Collar Contracts
		Weighted Average Price ($/Bbl)
	Volume (Bbld)	Ceiling Price		Floor Price
2016
September 1, 2016 through December 31, 2016 (closed)	70,000	$	54.25	$	45.00

Commodity Derivative Contracts - Natural Gas Price Swaps

Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the year ended December 31, 2016, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).

Natural Gas Price Swap Contracts
	Volume (MMBtud)	Weighted Average Price ($/MMBtu)
2016
March 1, 2016 through August 31, 2016 (closed)	60,000	$	2.49
2017
March 1, 2017 through November 30, 2017	30,000	$	3.10

Commodity Derivative Contracts - Natural Gas Options

Presented below is a comprehensive summary of EOG's natural gas call and put option contracts for the year ended December 31, 2016, with notional volumes expressed in MMBtud and prices expressed in $/MMBtu.

Natural Gas Option Contracts
	Call Options Sold			Put Options Purchased
	Volume (MMBtud)	Weighted Average Price ($/MMBtu)		Volume (MMBtud)	Weighted Average Price ($/MMBtu)
2016
September 2016 (closed)	56,250	$	3.46	—	$	—
October 1, 2016 through November 30, 2016 (closed)	106,250	3.48		—	—
2017
March 1, 2017 through November 30, 2017	213,750	$	3.44	171,000	$	2.92
2018
March 1, 2018 through November 30, 2018	120,000	$	3.38	96,000	$	2.94

Commodity Derivative Contracts - Natural Gas Collars

Presented below is a comprehensive summary of EOG's natural gas collar contracts for the year ended December 31, 2016, with notional volumes expressed in MMBtud and prices expressed in $/MMbtu.

Natural Gas Collar Contracts
		Weighted Average Price ($/MMbtu)
	Volume (MMBtud)	Ceiling Price		Floor Price
2017
March 1, 2017 through November 30, 2017	80,000	$	3.69	$	3.20

Schedule of Derivative Instruments In Statement Of Financial Position, Fair Value

The following table sets forth the amounts and classification of EOG's outstanding derivative financial instruments at December 31, 2016 and 2015, respectively.  Certain amounts may be presented on a net basis on the consolidated financial statements when such amounts are with the same counterparty and subject to a master netting arrangement (in millions):

		Fair Value at December 31,
Description	Location on Balance Sheet	2016		2015
Asset Derivatives
Crude oil and natural gas derivative contracts -
Noncurrent portion	Other Assets	$	1	$	—
Liability Derivatives
Crude oil and natural gas derivative contracts -
Current portion	Liabilities from Price Risk Management Activities	$	62	$	—