Black Hills Corp is a U.S.-based energy company that operates through its utilities and nonregulated energy business groups, which are further segmented. The utilities group provides electricity and gas services, while the nonregulated energy group is involved with power generation, coal mining, and oil and gas operations. These segments operate in states in the Midwest and mountain regions in the U.S. The company’s customers include residential, commercial, industrial, and municipal consumers. Most of these customers are residential. Black Hills derives the majority of its revenue from its utilities business group, specifically from electric utilities.