Encana Corporation, together with its subsidiaries, engages in the development, exploration, production, and marketing of natural gas, oil, and natural gas liquids in Canada and the United States. The company owns interests in plays, such as the Montney in northern British Columbia and northwest Alberta; Duvernay in west central Alberta; Clearwater in central and southern Alberta; Deep Panuke in offshore Nova Scotia; Cadomin/Doig in northeast British Columbia; Horn River in northeast British Columbia; and Granite Wash/Doig in northwest Alberta. It also holds interests in plays that comprise the Eagle Ford in south Texas; Permian in west Texas; DJ Basin in northern Colorado; San Juan in northwest New Mexico; Piceance in northwest Colorado; Haynesville in northwest Louisiana; and Tuscaloosa Marine Shale in east Louisiana and west Mississippi. Encana Corporation primarily markets its products to local distribution companies, industrials, other producers, and energy marketing and midstream companies. The company was founded in 1971 and is headquartered in Calgary, Canada.