Oil and Gas Exploration and Production Industries Disclosures, Results Of Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	$ 11,946,487		$ 7,907,891	$ 5,496,743
Other	[1]	89,635		81,610	81,403
Total	[1]	12,036,122		7,989,501	5,578,146
Exploration Costs	[1]	148,999		145,342	124,953
Dry Hole Costs	[1]	5,405		4,609	10,657
Transportation Costs	[1]	746,876		740,352	764,106
Gathering and Processing Costs		436,973	[1],[2]	148,775	122,901
Production Costs	[1]	2,028,083		1,562,210	1,254,013
Impairments	[1]	347,021		479,240	620,267
Depreciation, Depletion and Amortization	[1]	3,320,276		3,296,766	3,437,284
Income (Loss) Before Income Taxes	[1]	5,002,489		1,760,982	(633,134)
Income Tax Provision (Benefit)	[1]	1,100,145		649,102	(226,413)
Results of Operations	[1]	3,902,344		1,111,880	(406,721)
United States
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	11,488,620		7,570,768	5,177,989
Other	[1]	89,708		81,610	81,386
Total	[1]	11,578,328		7,652,378	5,259,375
Exploration Costs	[1]	121,572		113,334	115,990
Dry Hole Costs	[1]	4,983		91	10,529
Transportation Costs	[1]	742,792		737,403	753,791
Gathering and Processing Costs	[1],[2]	404,471
Production Costs	[1]	1,924,504		1,446,333	1,163,827
Impairments	[1]	344,595		477,223	611,297
Depreciation, Depletion and Amortization	[1]	3,181,801		3,157,056	3,249,792
Income (Loss) Before Income Taxes	[1]	4,853,610		1,720,938	(645,851)
Income Tax Provision (Benefit)	[1]	1,086,077		625,562	(230,377)
Results of Operations	[1]	3,767,533		1,095,376	(415,474)
Trinidad
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	302,112		284,673	243,708
Other	[1]	(49)		59	(8)
Total	[1]	302,063		284,732	243,700
Exploration Costs	[1]	21,402		26,245	2,647
Dry Hole Costs	[1]	0		0	0
Transportation Costs	[1]	3,236		1,885	1,181
Gathering and Processing Costs	[1],[2]	0
Production Costs	[1]	33,506		27,839	27,113
Impairments	[1]	0		0	7,773
Depreciation, Depletion and Amortization	[1]	91,788		115,174	145,440
Income (Loss) Before Income Taxes	[1]	152,131		113,589	59,546
Income Tax Provision (Benefit)	[1]	12,170		24,882	5,526
Results of Operations	[1]	139,961		88,707	54,020
Other International
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1],[3]	155,755		52,450	75,046
Other	[1],[3]	(24)		(59)	25
Total	[1],[3]	155,731		52,391	75,071
Exploration Costs	[1],[3]	6,025		5,763	6,316
Dry Hole Costs	[1],[3]	422		4,518	128
Transportation Costs	[1],[3]	848		1,064	9,134
Gathering and Processing Costs	[1],[2],[3]	32,502
Production Costs	[1],[3]	70,073		88,038	63,073
Impairments	[1],[3]	2,426		2,017	1,197
Depreciation, Depletion and Amortization	[1],[3]	46,687		24,536	42,052
Income (Loss) Before Income Taxes	[1],[3]	(3,252)		(73,545)	(46,829)
Income Tax Provision (Benefit)	[1],[3]	1,898		(1,342)	(1,562)
Results of Operations	[1],[3]	$ (5,150)		$ (72,203)	$ (45,267)

[1] Excludes gains or losses on the mark-to-market of financial commodity derivative contracts, gains or losses on sales of reserves and related assets, interest charges and general corporate expenses for each of the three years in the period ended December 31, 2018.

[2] Effective January 1, 2018, EOG adopted the provisions of Accounting Standards Update (ASU) 2014-09, "Revenue From Contracts With Customers" (ASU 2014-09). In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees relating to certain processing and marketing agreements within its United States segment as Gathering and Processing Costs instead of as a deduction to Natural Gas Revenues. There was no impact to operating income or net income resulting from changes to the presentation of natural gas processing fees (see Note 1 to Consolidated Financial Statements).

[3] Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The United Kingdom operations were sold in the fourth quarter of 2018. The Argentina operations were sold in the third quarter of 2016.