PrimeEnergy Corporation, through its subsidiaries, engages in the acquisition, exploration, development, and production of oil and natural gas in the United States. The company also acquires producing oil and gas properties through joint ventures with industry partners; and provides well-servicing support operations, site-preparation, and construction services for oil and gas drilling and reworking operations. It operates approximately 1,600 wells and owns non-operating interests in approximately 800 additional wells located primarily in Texas, Oklahoma, West Virginia, the Gulf of Mexico, New Mexico, Colorado, and Louisiana. As of December 31, 2012, the company had proved reserves of 25,612 thousand barrels of oil equivalent. PrimeEnergy Corporation was founded in 1973 and is based in Houston, Texas.