EOG Resources, Inc., together with its subsidiaries, explores for, develops, produces, and markets crude oil and natural gas. The company's principal producing areas are located in New Mexico, North Dakota, Texas, Utah, and Wyoming in the United States; and Canada, the Republic of Trinidad and Tobago, the United Kingdom, and the People's Republic of China. As of December 31, 2016, it had total estimated net proved reserves of 2,147 million barrels of oil equivalent, including 1,178 million barrels (MMBbl) crude oil and condensate reserves; 416 MMBbl of natural gas liquid reserves; and 3,318 billion cubic feet of natural gas reserves. The company was formerly known as Enron Oil & Gas Company. EOG Resources, Inc. was founded in 1985 and is headquartered in Houston, Texas.