Oil and Gas Exploration and Production Industries Disclosures, Results Of Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
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]	$ 7,907,891	$ 5,496,743	$ 6,403,258
Other	[1]	81,610	81,403	47,909
Total	[1]	7,989,501	5,578,146	6,451,167
Exploration Costs	[1]	145,342	124,953	149,494
Dry Hole Costs	[1]	4,609	10,657	14,746
Transportation Costs	[1]	740,352	764,106	849,319
Production Costs	[1]	1,562,210	1,254,013	1,581,131
Impairments	[1]	479,240	620,267	6,613,546
Depreciation, Depletion and Amortization	[1]	3,296,766	3,437,284	3,190,443
Income (Loss) Before Income Taxes	[1]	1,760,982	(633,134)	(5,947,512)
Income Tax Provision (Benefit)	[1]	649,102	(226,413)	(2,086,555)
Results of Operations	[1]	1,111,880	(406,721)	(3,860,957)
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]	7,570,768	5,177,989	5,962,753
Other	[1]	81,610	81,386	47,464
Total	[1]	7,652,378	5,259,375	6,010,217
Exploration Costs	[1]	113,334	115,990	139,753
Dry Hole Costs	[1]	91	10,529	956
Transportation Costs	[1]	737,403	753,791	838,428
Production Costs	[1]	1,446,333	1,163,827	1,486,189
Impairments	[1]	477,223	611,297	6,402,908
Depreciation, Depletion and Amortization	[1]	3,157,056	3,249,792	3,017,386
Income (Loss) Before Income Taxes	[1]	1,720,938	(645,851)	(5,875,403)
Income Tax Provision (Benefit)	[1]	625,562	(230,377)	(2,128,183)
Results of Operations	[1]	1,095,376	(415,474)	(3,747,220)
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]	284,673	243,708	381,761
Other	[1]	59	(8)	(3)
Total	[1]	284,732	243,700	381,758
Exploration Costs	[1]	26,245	2,647	2,071
Dry Hole Costs	[1]	0	0	5,635
Transportation Costs	[1]	1,885	1,181	1,290
Production Costs	[1]	27,839	27,113	28,862
Impairments	[1]	0	7,773	0
Depreciation, Depletion and Amortization	[1]	115,174	145,440	154,588
Income (Loss) Before Income Taxes	[1]	113,589	59,546	189,312
Income Tax Provision (Benefit)	[1]	24,882	5,526	43,739
Results of Operations	[1]	88,707	54,020	145,573
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],[2]	52,450	75,046	58,744
Other	[1],[2]	(59)	25	448
Total	[1],[2]	52,391	75,071	59,192
Exploration Costs	[1],[2]	5,763	6,316	7,670
Dry Hole Costs	[1],[2]	4,518	128	8,155
Transportation Costs	[1],[2]	1,064	9,134	9,601
Production Costs	[1],[2]	88,038	63,073	66,080
Impairments	[1],[2]	2,017	1,197	210,638
Depreciation, Depletion and Amortization	[1],[2]	24,536	42,052	18,469
Income (Loss) Before Income Taxes	[1],[2]	(73,545)	(46,829)	(261,421)
Income Tax Provision (Benefit)	[1],[2]	(1,342)	(1,562)	(2,111)
Results of Operations	[1],[2]	$ (72,203)	$ (45,267)	$ (259,310)

[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, 2017.

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