Feb 15 (Reuters) - Cloud Peak Energy Inc CLD.N
* Cloud Peak Energy modifies throughput and transportation agreements with Westshore Terminals and BNSF Railway
* Cloud Peak Energy Inc - Both agreements provide that parties may extend agreements through end of 2019 if elected
* Cloud Peak Energy Inc - Cloud Peak Energy made upfront payments and also committed to minimum payments through 2018
* Cloud Peak Energy Inc says outstanding undiscounted commitments are approximately $51 million through current two year term of these agreements
* Cloud Peak Energy Inc - Outstanding undiscounted commitments are approximately $51 million through current two year term of these agreements
* Cloud Peak Energy Inc says both agreements provide that parties may extend agreements through end of 2019 if elected
* Cloud Peak Energy - Westshore has certain priority rights on throughput capacity in respect of any export shipments by Cloud Peak Energy through 2024 Source text for Eikon: Further company coverage: CLD.N