Encore Energy Partners LP, together with its subsidiaries, engages in the acquisition, exploitation, and development of oil and natural gas properties. Its properties and oil and natural gas reserves are located in the Big Horn Basin in Wyoming and Montana; the Permian Basin in west Texas and New Mexico; the Williston Basin in North Dakota and Montana; and the Arkoma Basin in Arkansas and Oklahoma. As of December 31, 2009, the companys estimated total proved reserves were 28.9 MMBbls of oil and 84.7 Bcf of natural gas. It also had 1,099 operated wells and 1,644 non-operated wells. Encore Energy Partners GP LLC serves as the general partner of Encore Energy Partners LP. The company is based in Houston, Texas.