William D. Laakso

Integrys Energy Group, Inc. is a diversified energy holding company, which is focused on regulated and non-regulated energy delivery in the U.S. and Canada. The company offers services through its subsidiaries which include Michigan Gas Utilities (MGS), North Shore Gas (NSG), People Gas (PG), Upper Peninsula Power Co. (UPPC) and Wisconsin Public Service (WPS). The company operates its business through the following segments: Natural Gas Utility, Electric Utility, Electric Transmission Investment, Integrys Energy Services, Holding Company and Other. The Natural Gas Utility segment includes the regulated natural gas utility operations of WPS, MGU, MERC, PGL, and NSG. The Electric Utility segment includes the regulated electric utility operations of WPS and UPPCO. The Integrys Energy Services is a diversified nonregulated retail energy supply and services company that primarily sells electricity and natural gas to commercial, industrial, and residential customers. The Electric Transmission Investment segment consists of integrys energy group. The Holding Company and Other segment includes the operations of the integrys energy group holding along with any nonutility activities at WPS, MGU, MERC, UPPCO, PGL, NSG, and IBS. It provides regulated natural gas utility service to residential, commercial and industrial, transportation and other customers in Chicago, Minnesota, northeastern Wisconsin and adjacent parts of the Upper Peninsula of Michigan. Integrys Energy Group was founded on February 21, 2007 and is headquartered in Chicago, IL.

Wisconsin Public Service Corp. provides electricity and natural gas utility services. The company operates through the following segments: Utility and Other. The Utility segment includes electric and natural gas utility operations. The electric utility operations engages in the generation, distribution, and sale of electricity in north-eastern Wisconsin. The natural gas utility operations engages in the purchase, distribution, and sale of natural gas to retail customers and the transportation of customer-owned natural gas in north-eastern Wisconsin. The Other segment includes non-utility activities, as well as equity earnings from its investment in WRPC. The company was founded in 1883 and is headquartered in Green Bay, WI.

Integrys Business Support LLC provides management consulting and accounting services. The private company is based in Chicago, IL.

The Peoples Gas Light & Coke Co. provides natural gas utility services to residential, commercial, industrial, and transportation customers in Chicago. It also manages portfolio of natural gas supply contracts, storage services, and pipeline transportation services. The company was founded in 1855 and is headquartered in Chicago, IL.