Cloud Peak Energy Announces Election Results from Annual Meeting of Stockholders

GILLETTE, Wyo., June 8, 2010 -- Following its annual meeting of stockholders today, Cloud Peak Energy Inc. (NYSE: CLD), the third-largest U.S. coal producer and the only pure-play Powder River Basin (PRB) coal company, announced that the company’s stockholders have re-elected its Chairman Keith Bailey and Director William Owens to its Board of Directors to serve until Cloud Peak Energy’s 2013 annual meeting.

Cloud Peak Energy also announced that its stockholders approved the ratification of the appointment of PricewaterhouseCoopers LLP as the company’s independent registered public accounting firm for fiscal 2010.

Additional information about these proposals can be found in the company's proxy statement for the annual meeting, which was mailed to stockholders and filed with the U.S. Securities and Exchange Commission.

The voting results are based on the preliminary report of the company’s inspector of election. Final results will be included in the company’s current report on Form 8-K to be filed within four business days of the annual meeting.

About Cloud Peak Energy™

Cloud Peak Energy Inc. (NYSE: CLD) is headquartered in Wyoming and is the third largest U.S. coal producer and the only pure-play PRB coal company. As one of the safest coal producers in the nation, Cloud Peak Energy specializes in the production of low sulfur, sub-bituminous coal. The company owns and operates three surface coal mines in the PRB, the lowest cost major coal producing region in the nation. The Antelope mine and Cordero Rojo mine are located in Wyoming and the Spring Creek mine is located near Decker, Montana. With approximately 1,500 employees, the company is widely recognized for its exemplary performance in its safety and environmental programs. Cloud Peak Energy is a sustainable fuel supplier for approximately 4 percent of the nation's electricity.