WEC Energy Group Inc was incorporated in the State of Wisconsin in 1981. On June 29, 2015, Wisconsin Energy Corporation acquired 100% of the outstanding common shares of Integrys and changed its name to WEC Energy Group, Inc. The Company conducts its operations mainly in two operating segments: a utility energy segment and a non-utility energy segment. Its utility energy segment consists of Wisconsin Electric and Wisconsin Gas, operating together under the trade name of " We Energies". The non-utility energy segment consists mainly of We Power, which owns and leases to Wisconsin Electric generation plants constructed as part of its PTF plan. All four of the plants constructed as part of PTF have been placed in service. Port Washington Generating Station Unit 1 (PWGS 1) and Port Washington Generating Station Unit 2 (PWGS 2) are being leased to Wisconsin Electric under long-term leases that run for 25 years. Oak Creek expansion Unit 1 (OC 1) and Oak Creek expansion Unit 2 (OC 2) are being leased to Wisconsin Electric under long-term leases that run for 30 years. It provides electric utility service to customers in industries such as mining, paper, foundry, food products and machinery production, as well as to large retail chains. The Companies retail electric customers are two iron ore mines located in the Upper Peninsula of Michigan. Its wholesale electric energy sales were also made to eight other public utilities and power marketers throughout the region under rates approved by FERC. The Company competes with other utilities for sales to municipalities and cooperatives. It also competes with other utilities and marketers in the wholesale electric business.