Kiewit Royalty Trust, a royalty trust, holds royalty and overriding royalty interests in the leases of four coal mines located in the states of Montana and Wyoming. It has coal royalties in Decker Mine and Spring Creek Mine located in Big Horn County, Montana. The company also owns rights in a lease in the Black Butte Mine in Sweetwater County, Wyoming. Kiewit Royalty Trust was founded in 1982 and is based in Omaha, Nebraska.