utilities Keywords: Advanced Search Black Hills Energy Business Name Black Hills Energy Address 47292 N. Westwood Avenue O'Neill, NE 68763 (Employee Access Only) Phone Number (888) 890-5554 Website blackhillsenergy.com Facebook Page @blackhillsenergy Email custserv@blackhillscorp.com Category Utilities & Telecommunications Tags gas, Gas company, Holt County, O'Neill, utilities