WEC Energy Group is a holding company. Through its subsidiaries, Co. provides or invests in regulated natural gas and electricity, and renewable energy, as well as nonregulated renewable energy. Co.'s segments include: Wisconsin, which generates and distributes electric energy and provides retail natural gas distribution service; Illinois, which includes the natural gas utility operations; Electric Transmission, which owns, maintains, monitors, and operates electric transmission systems; and Non-Utility Energy Infrastructure, which owns and leases generating facilities to its Wisconsin Electric Power Company subsidiary and owns underground natural gas storage facilities in Michigan.

Preferreds: WELPM, WELPP