Cloud Peak Energy Voluntarily Files for Chapter 11

GILLETTE, Wyo.–(BUSINESS WIRE)–Cloud Peak Energy Inc. (OTC: CLDP) (“Cloud Peak Energy” or the “Company”), the only pure-play Powder River Basin (“PRB”) coal company, announced today that it has filed voluntary petitions under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware.

Cloud Peak Energy intends to continue a marketing process for all of its assets. Cloud Peak Energy expects its mines will continue normal operations throughout the process, safely and efficiently meeting all customer commitments.

Colin Marshall, President and Chief Executive Officer of Cloud Peak Energy, commented, “Over the past several months, Cloud Peak Energy has thoroughly evaluated strategic alternatives to address the challenging market conditions in our industry. We believe, at this time, that a sale process in Chapter 11 will provide the best opportunity to maximize value for Cloud Peak Energy.”