===April 2012: Montana agency challenged over coal mine permit===
On April 17, 2012 environmental groups in Montana filed a federal lawsuit over a proposed coal mine expansion in the state, stating potential future damage to nearby property owners' water supplies needs to be considered. The case targets a pending application by Colorado-based Westmoreland Coal Co. to expand its Rosebud mine near the town of Colstrip. It was filed by attorneys for the Sierra Club and Montana Environmental Information Center in U.S. District Court in Helena.<ref>[http://www.businessweek.com/ap/2012-04/D9U6UI181.htm "Montana agency challenged over coal mine permit"] Matthew Brown, Associated Press, April 17, 2012.</ref>
===July 2012: Cloud Peak and Crow tribe reach 1.4 billion ton coal deal===
In July 2012 it was reported that Wyoming mining company [[Cloud Peak Energy]] reached a tentative option agreements to lease and mine an estimated 1.4 billion tons of coal on southeastern Montana's Crow Indian Reservation.
The reported deal will cover three coal deposits near Cloud Peak's existing Spring Creek mine near the Wyoming border in the [[Powder River Basin]]. The deal must be next be approved by the Crow Tribal Legislature and federal officials with the Department of Interior.<ref>[http://www.foxnews.com/us/2012/07/25/cloud-peak-crow-tribe-reach-14b-ton-coal-deal/#ixzz21kg3R4L7 "Cloud Peak, Crow Tribe reach 1.4B ton coal deal"] Associated Press, July 25, 2012.</ref>
==Montana Land Board approves Otter Creek lease==