PDC Energy, Inc., an independent exploration and production company, acquires, explores for, develops, and produces crude oil, natural gas, and natural gas liquids in the United States. The company's operations are primarily located in the Wattenberg Field in Colorado and the Delaware Basin in Texas. As of December 31, 2017, it had approximately 452.9 million barrels of crude oil equivalent of proved reserves; and owned an interest in approximately 2,900 gross productive wells. The company was formerly known as Petroleum Development Corporation and changed its name to PDC Energy, Inc. in June 2012. PDC Energy, Inc. was founded in 1969 and is headquartered in Denver, Colorado.