Pioneer Natural Resources Company (Pioneer) is an independent oil and gas exploration and production company with operations in the United States and South Africa. Pioneer is a holding company whose assets consist of direct and indirect ownership interests in, and whose business is conducted substantially through, its subsidiaries. The Company sells homogenous oil, natural gas liquid (NGL) and gas units. The Company provides administrative, financial, legal and management support to United States and South Africa subsidiaries that explore for, develop and produce proved reserves. In April 2014, the Company announced that it has completed the sale of Alaska subsidiary to Caelus Energy Alaska LLC. In September 2014, Pioneer Natural Resources Co announces closing of sale of Hugoton, Kansas assets to Linn Energy LLC.