Integrys Energy Group, Inc. was an American energy company headquartered in Chicago, Illinois. It was formed by the merger of WPS Resources Corp. and Peoples Energy Corp. on February 21, 2007. The chairman, President, and chief executive officer was Charles A. Schrock. On June 23, 2014, Integrys announced that it was being acquired by Wisconsin Energy Corporation for $9.1 billion. Also in 2014, Integrys entered into an agreement to sell 100% of the Upper Peninsula Power Company (UPPCO) to Balfour Beatty Infrastructure Partners LP for $298.9 million.

Utilities

The six regulated utilities consisted of:

Subsidiaries

The company's other subsidiaries were:

Criticism

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.