In May 2012 it was announced that Cloud Peak Energy was to face state and federal violations after blasters earlier in the month ignited an explosion that was more than three times its intended size.<ref>http://trib.com/news/mine-faces-state-federal-fines-for-massive-blast/article_50411ad9-3afb-5f77-a6c1-c53562cbed6e.html#ixzz1vdhblDkr "Mine faces state, federal fines for massive blast"] Jeremy Pelzer Star-Tribune, May 22, 2012.</ref>
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==Cloud Peak Energy to ship more Powder River Basin coal to Asia==