Layoffs

However, the company said, most of them were given the option to relocate to other Halliburton operating areas where more activity is anticipated.

Coal production in Wyoming has dropped by one-third in the past five years.

U.S. Sens. John Barrasso and Mike Enzi called the layoffs heartbreaking.

The changes were made after a gaming consultant was hired to review the casino's operations.

Since July of last year, Mills firefighters have responded to 912 calls for service, union representatives said in the Wednesday release.

Cloud Peak owns the Antelope and Cordero Rojo mines in Wyoming and the Spring Creek mine in Montana.

The company said it intends to offer jobs in other Gray markets to its Casper employees whose positions will be cut.

The hotel closed on Oct. 31.

CRU Casper, LLC -- a subsidiary of the CRU Real Estate Group in Costa Mesa, Calif. -- bought the hotel in June 2015.

The identity of the hotel's new ownership remains unknown.