CVR Energy, Inc. (CVR Energy), through its wholly owned subsidiaries, acts as an independent petroleum refiner and marketer of transportation fuels in the mid-continental United States. In addition, the Company, through its majority-owned subsidiaries, acts as an independent producer and marketer of nitrogen fertilizer products in North America. As of December 31, 2011, the Company owned the general partner and approximately 70% of CVR Partners, LP (the Partnership), a limited partnership which produces nitrogen fertilizers in the form of ammonia and an aqueous solution of urea and ammonium nitrate used as a fertilizer (UAN). The Company operates in two segments: the petroleum segment and the nitrogen fertilizer segment. On December 15, 2011, the Company acquired Gary-Williams Energy Corporation and its subsidiaries (GWEC).