Concho Resources Inc. is a Delaware corporation, which was formed in February 22, 2006 as a result of the combination of Concho Equity Holdings Corp. and a portion of the oil and natural gas properties and related assets owned by Chase Oil Corporation and certain of its affiliates. It is an independent oil and natural gas company, which is engaged in the acquisition, development, exploitation and exploration of producing oil and natural gas properties. Its core operating areas are located in the Permian Basin region of Southeast New Mexico and West Texas, a large onshore oil and natural gas basin in the United States. The Permian Basin is one of the prolific oil and natural gas producing regions in the United States and is characterized by production history, mature infrastructure, long reserve life, multiple producing horizons and enhanced recovery potential. It refers to its two core operating areas as the New Mexico Permian, where it targets the Yeso formation, and Texas Permian, where it targets the Wolfberry, a term applied to the combined Wolfcamp and Spraberry horizons. Its core operations are focused in the Permian Basin of Southeast New Mexico and West Texas. It underlies an area of Southeast New Mexico and West Texas approximately 250 miles wide and 300 miles long. Commercial accumulations of hydrocarbons occur in multiple stratigraphic horizons, at depths ranging from approximately 1,000 feet to over 25,000 feet. The production of oil and natural gas is subject to regulation under the local, state and federal statutes, rules, orders and regulations.