Black Hills Energy Categories: Members Logo Business Name Black Hills Energy Contact Person Phone1 888-890-5554 Emailcustomerservice@blackhillsenergy.com Websitehttps://www.blackhillsenergy.com About 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.