Black Hills history

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 September 1988, Universal Transport and Les Calkins were divested.

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 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 2007, it announced an agreement to buy the natural gas utility in Colorado, Kansas, Nebraska and Iowa and its Colorado electric utility from Aquila, Inc.

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.