Gillette, WY, January 31, 2012 – Cloud Peak Energy Inc. (NYSE:CLD), one of the largest U.S. coal producers and the only pure-play Powder River Basin (PRB) coal company, will provide an overview of the Company and meet with investors at the following upcoming investor conferences:

• Credit Suisse Energy Conference 2012 on Thursday, February 9^th  in Vail, CO;
• BMO Global Metals & Mining Conference on Tuesday, February 28^th in Hollywood, FL;
• Brean Murray Carret & Co. Global Resources & Infrastructure Conference on Wednesday February 29^th in New York, NY; and
• Simmons Energy Conference on Thursday and Friday, March 1^st and 2^nd in Las Vegas, NV.

About Cloud Peak Energy^®

Cloud Peak Energy Inc. (NYSE:CLD) is headquartered in Wyoming and is one of the largest coal producers in the United States.  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 Powder River Basin, 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 1,550 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.