Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		$ 2,469,701	$ 4,187,556	$ 4,788,239	$ 8,271,227
Operating Income (Loss)		39,626	1,144,730	(133,369)	2,229,009
Other Income (Expense), Net		9,380	7,950	(611)	4,612
Interest Expense, Net		(60,484)	(51,867)	(113,829)	(102,019)
Income (Loss) Before Income Taxes		(11,478)	1,100,813	(247,809)	2,131,602
Total Assets		33,884,096		33,884,096		$ 34,762,687
United States [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		2,369,319	3,971,837	4,581,901	7,823,902
Operating Income (Loss)		20,232	1,092,198	(161,624)	2,133,219
Total Assets		31,980,083		31,980,083		32,871,398
Trinidad [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		95,703	138,253	192,265	274,986
Operating Income (Loss)		45,907	74,142	92,887	148,457
Total Assets		960,940		960,940		865,674
Other International [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues	[1]	4,679	77,466	14,073	172,339
Operating Income (Loss)	[1]	(26,513)	$ (21,610)	(64,632)	$ (52,667)
Total Assets	[2]	$ 943,073		$ 943,073		$ 1,025,615

[1] Other International primarily includes EOG's Canada, United Kingdom, China and Argentina operations.

[2] Other International primarily includes EOG's Canada, United Kingdom, China and Argentina operations.