Oil and Gas Exploration and Production Industries Disclosures, Results Of Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
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]	$ 11,581,445		$ 11,946,487		$ 7,907,891
Other	[1]	134,358		89,635		81,610
Total	[1]	11,715,803		12,036,122		7,989,501
Exploration Costs	[1]	139,881		148,999		145,342
Dry Hole Costs	[1]	28,001		5,405		4,609
Transportation Costs	[1]	758,300		746,876		740,352
Gathering and Processing Costs		479,102	[1],[2]	436,973	[1],[2]	148,775
Production Costs	[1]	2,133,986		2,028,083		1,562,210
Impairments	[1]	517,896		347,021		479,240
Depreciation, Depletion and Amortization	[1]	3,657,597		3,320,276		3,296,766
Income (Loss) Before Income Taxes	[1]	4,001,040		5,002,489		1,760,982
Income Tax Provision (Benefit)	[1]	942,582		1,100,145		649,102
Results of Operations	[1]	3,058,458		3,902,344		1,111,880
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]	11,250,853		11,488,620		7,570,768
Other	[1]	134,325		89,708		81,610
Total	[1]	11,385,178		11,578,328		7,652,378
Exploration Costs	[1]	130,302		121,572		113,334
Dry Hole Costs	[1]	11,133		4,983		91
Transportation Costs	[1]	753,558		742,792		737,403
Gathering and Processing Costs	[1],[2]	479,102		404,471
Production Costs	[1]	2,063,078		1,924,504		1,446,333
Impairments	[1]	510,948		344,595		477,223
Depreciation, Depletion and Amortization	[1]	3,560,609		3,181,801		3,157,056
Income (Loss) Before Income Taxes	[1]	3,876,448		4,853,610		1,720,938
Income Tax Provision (Benefit)	[1]	884,450		1,086,077		625,562
Results of Operations	[1]	2,991,998		3,767,533		1,095,376
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]	269,957		302,112		284,673
Other	[1]	18		(49)		59
Total	[1]	269,975		302,063		284,732
Exploration Costs	[1]	4,290		21,402		26,245
Dry Hole Costs	[1]	13,033		0		0
Transportation Costs	[1]	4,014		3,236		1,885
Gathering and Processing Costs	[1],[2]	0		0
Production Costs	[1]	30,539		33,506		27,839
Impairments	[1]	5,713		0		0
Depreciation, Depletion and Amortization	[1]	79,156		91,788		115,174
Income (Loss) Before Income Taxes	[1]	133,230		152,131		113,589
Income Tax Provision (Benefit)	[1]	54,980		12,170		24,882
Results of Operations	[1]	78,250		139,961		88,707
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]	60,635		155,755		52,450
Other	[1],[3]	15		(24)		(59)
Total	[1],[3]	60,650		155,731		52,391
Exploration Costs	[1],[3]	5,289		6,025		5,763
Dry Hole Costs	[1],[3]	3,835		422		4,518
Transportation Costs	[1],[3]	728		848		1,064
Gathering and Processing Costs	[1],[2],[3]	0		32,502
Production Costs	[1],[3]	40,369		70,073		88,038
Impairments	[1],[3]	1,235		2,426		2,017
Depreciation, Depletion and Amortization	[1],[3]	17,832		46,687		24,536
Income (Loss) Before Income Taxes	[1],[3]	(8,638)		(3,252)		(73,545)
Income Tax Provision (Benefit)	[1],[3]	3,152		1,898		(1,342)
Results of Operations	[1],[3]	$ (11,790)		$ (5,150)		$ (72,203)

[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, 2019.

[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 and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.