Integrys Energy Group

The six regulated utilities consisted of:

• The Peoples Gas Light and Coke Company, a natural gas utility serving approximately 873,000 customers in the City of Chicago.
• Wisconsin Public Service Corporation, an electric and natural gas utility serving approximately 446,000 electric customers and 330,000 natural gas customers in northeast and central Wisconsin.
• Minnesota Energy Resources Corporation, a natural gas utility serving approximately 238,000 customers throughout Minnesota.
• Michigan Gas Utilities Corporation, a natural gas utility serving approximately 176,000 customers in lower Michigan.
• North Shore Gas Company, a natural gas utility serving approximately 162,000 customers in the northern suburbs of Chicago.
• Upper Peninsula Power Company, an electric utility serving approximately 52,000 customers in Michigan's Upper Peninsula. Note: Integrys announced its intention to sell Upper Peninsula Power to Balfour Beatty Infrastructure Partners LP on 20 January 2014.

The company's other subsidiaries were:

• Integrys Business Support, Integrys Energy Group's business services company, providing services and solutions for operation of Integrys' subsidiaries.
• Integrys Energy Services, Inc., a diversified nonregulated energy supply and services company serving residential, commercial, industrial, and wholesale customers in developed competitive markets in the United States.
• Integrys Transportation Fuels, with compressed natural gas fueling stations operating across the United States under the brand name Trillium CNG.

In December 2011, the non-partisan organization Public Campaign criticized Integrys Energy Group for spending $710,000 on lobbying and not paying any taxes during 2008-2010, instead receiving $92 million in tax rebates, despite making a profit of $818 million and increasing executive pay by 109% to $14.8 million in 2010 for its top 5 executives.