With Roosevelt-era legislation to break up big national utility holding companies, Black Hills Power Light Company was formed in 1941 by combining the assets of General Public Utilities, Inc. and Dakota Power Company which provided power for most of western South Dakota.
One year after commencing business, the utility began filling the few holes in its service area, purchasing an electric plant in Edgemont, and in 1946 a plant in Newcastle.
In 1954, the utility acquired Homestake Mining's Wyodak Coal Company, from which the utility would gain all the coal it needed to generate electricity.
In 1956, the company completed its acquisition of the Wyodak Coal Company now Wyodak Resources Development Corporation , from the Homestake Mining Company, setting the stage for the company's significant investments in mining, oil and gas.
In 1983, Wyodak acquired Universal Transport, Inc., an interstate and intrastate trucking company involved in bulk commodity hauling.
In June 1986, Wyodak acquired Western Production Company, an oil producing and operating company with interest in an oil and gas processing plant.
In 1994, the company formed Daksoft, Inc., a customer information system software marketing company.
Western Production, which had extended the company's geographic reach into Texas and California, recorded its best financial year in 1996 since being acquired through Wyodak, reaching 12.5 million in revenue for the year.
In 1996, Daksoft entered into a joint venture with Montana-Dakota Utilities to market a multi-utility customer information system to other utilities.
In July 2002, Black Hills Corporation announced that a settlement was reached with the United States Commodity Futures Trading Commission CFTC relating to its marketing subsidiary, Enserco Energy, Inc.
In 2004, Black Hills acquired Cheyenne Light from Xcel Energy.
In July 2015, Black Hills announced it was purchasing SourceGas for 1.89 billion.
In late 2016, Black Hills announced plans to invest 700 million to build a 1 million square foot drilling and pipe production plant in Norfolk, Nebraska.
In March 2018, Black Hills received, and turned down, an unsolicited 1.1 billion purchase offer from the San Isabel Electric Association in Colorado it responded to the offer with a full-page newspaper ad in the Pueblo Chieftain.
|Company Name||Founded Date||Revenue||Employee Size|
National Grid USA Service Company1990
Memphis Light, Gas and Water1939
White River Valley Electric Cooperative-
Santee Electric Coop1939