GILLETTE, Wyo.–(BUSINESS WIRE)–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, today announced that Cloud Peak Energy Logistics LLC replaced its throughput agreement with Westshore Terminals Limited Partnership (TMX: WTE) and its transportation agreement with BNSF Railway Company (“BNSF”). Under the new agreements, which are effective commencing January 2017 for the throughput agreement and April 2017 fo