Changes

In the record of decision for the Antelope mine, BLM officials said the options for limiting greenhouse emissions are better evaluated at power plants than at coal mines.<ref name="mg"/> On an average day an average day, 21 long freight trains full of coal leave Antelope coal mine bound for 100 power plants across the country.<ref>[http://www.theguardian.com/environment/2014/nov/10/-sp-the-real-story-of-us-coal-inside-the-worlds-biggest-coal-mine "The real story of US coal: inside the world's biggest coalmine"] Suzanne Goldenberg, The Guardian, November 10, 2014.</ref>

===Sale to Navajo Transitional Energy Company===

In August 2019, Cloud Peak Energy announced that it had "selected [[Navajo Transitional Energy Company]] as the successful bidder to assume ownership of its three coal mines in the basin" according to the ''Casper Star-Tribune.'' "The deal includes a $15.7 million immediate cash payment, a $40 million second lien promissory note and payment of royalties for coal produced over the next five years. Navajo will also take over Wyoming’s Cordero Rojo and Antelope mines — in addition to its Spring Creek mine in Montana."<ref name=Navajo>Camille Erickson [https://trib.com/business/energy/bankrupt-cloud-peak-finds-new-owner-for-its-wyoming-mines/article_f4b4a060-790d-5d52-8cca-6ebf3d298305.html Bankrupt Cloud Peak finds new owner for its Wyoming mines] ''Casper Star-Tribune''Aug 19, 2019</ref>