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Subsequent Event	3 Months Ended
Subsequent Event	Mar. 31, 2017
Subsequent Events [Abstract]
Subsequent Event [Text Block]	Subsequent Event On February 15, 2017, the Board of Directors approved an amendment to EOG's Restated Certificate of Incorporation to increase the number of EOG's authorized shares of common stock from 640 million to 1,280 million. EOG's stockholders approved the increase at the Annual Meeting of Stockholders on April 27, 2017, and the amendment was filed with the Delaware Secretary of State on April 28, 2017.