A South Dakota-based public utility company, Black Hills Corp., has inked a deal through its Wyoming subsidiary, Black Hills Energy, to provide power to a bitcoin mining operation in Cheyenne, Wyo. for at least five years.Read MoreFeedzyA South Dakota-based public utility company, Black Hills Corp., has inked a deal through its Wyoming subsidiary, Black Hills Energy, to provide power to a bitcoin mining operation in Cheyenne, Wyo. for at least five years.