WEC Energy Group, Inc., through its subsidiaries, generates and distributes electric energy. The company operates in two segments, Utility Energy and Non-Utility Energy. It generates electricity from coal, natural gas, oil, hydroelectric, wind, and biomass. The company provides electric utility services to customers in the paper, foundry, food products, and machinery production industries, as well as to the retail chains. It also provides retail gas distribution services in the state of Wisconsin, as well as transports customer-owned gas to paper, food products, and fabricated metal products industries; and generates, distributes, and sells steam. As of December 31, 2014, the company serves approximately 1,133,600 electric customers in Wisconsin and the Upper Peninsula of Michigan; and approximately 1,089,000 gas customers in Wisconsin, as well as 440 steam customers in metropolitan Milwaukee, Wisconsin. In addition, it invests in and develops real estate, including business parks and other commercial real estate projects primarily in southeastern Wisconsin. The company was formerly known as Wisconsin Energy Corporation and changed its name to WEC Energy Group, Inc. in June 2015. WEC Energy Group, Inc. was founded in 1981 and is headquartered in Milwaukee, Wisconsin.