Black Hills Corp. is a diversified energy company. It operates through the following segments: Electric, Gas Utilities, Power Generation, Mining, and Corporate and Other. The Electric Utilities segment generates, transmits, and distributes electricity in South Dakota, Wyoming, Colorado, and Montana. The Gas segment conducts natural utility operations through its Arkansas, Colorado, Iowa, Kansas, Nebraska, and Wyoming subsidiaries. The Power Generation segment produces electric from its plants and sells the capacity and energy. The Mining segment consists of the production and sale of coal to site, mine-mouth power generation facilities. The Corporate and Other segment covers unallocated expenses that support its operating segments. The company was founded in 1883 and is headquartered in Rapid City, SD.