Concho Resources Inc.( Concho) is an independent oil and natural gas company engaged in the acquisition, development and exploration of oil and natural gas properties. The Company's core operating areas are located in the Permian Basin region of Southeast New Mexico and West Texas, an onshore oil and natural gas basin in the United States. The Permian Basin is one of the oil and natural gas producing regions in the United States. In July 2012, it completed an acquisition of producing and non-producing assets from Three Rivers Operating Company LLC and certain affiliated entities. In February 2012, the Company sold its remaining Permian Basin assets to Concho Resources Inc.In December 2012, Concho Resources Inc closed its divestiture of certain non-core producing properties located in the Permian Basin of West Texas and Southeast New Mexico to Legacy Reserves LP.