Saturday, May 18, 2024 / Categories: Members Black Hills Energy Print 101 LogoPhone1 888-890-5554Emailcustomerservice@blackhillsenergy.comWebsitewww.blackhillsenergy.comAbout usBlack Hills Energy, the business name under which we operate our natural gas and electric utilities, serves 1.3 million customers in eight states: Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, South Dakota and Wyoming.