CLOUD PEAK ENERGY

Cloud Peak Energy Inc. (CPE Inc.) is a holding company that manages its wholly owned subsidiary Cloud Peak Energy Resources LLC (CPE Resources). It is the producer of coal in the United States and in the Powder River Basin. During the year ended December 31, 2011, the Company’s coal sales were 98.7 million tons. CPE Inc.’s operations include three wholly owned surface coal mines, two of which are in Wyoming and one of which is in Montana. It also owns a 50% non-operating interest in the Deck... er mine, which is located in Montana. The Company produces sub-bituminous thermal coal with low sulfur content and sell its coal primarily to domestic and foreign electric utilities. During 2011, the coal it produced generated approximately 4% of the electricity produced in the United States. In July 2012, the Company acquired Youngs Creek Mining Company, LLC (Youngs Creek) joint venture and other related coal and surface assets from Chevron U.S.A. Inc. (Chevron) and CONSOL Energy Inc. (CONSOL).