Integrys Energy Group, Inc. Announces First Quarter 2009 Earnings Conference Call

Integrys Energy Group, Inc. Announces First Quarter 2009 Earnings Conference
Call

CHICAGO, April 20 /PRNewswire-FirstCall/ -- On Friday, May 1, at 8:00 a.m.
CDT, the executive management of Integrys Energy Group, Inc. (NYSE: TEG), will
host a conference call to review 2009 first quarter financial results, as well
as prospects for 2009. The associated earnings release will be issued after
market close on April 30. A packet of detailed financial information will be
available on the Integrys Energy Group web site on May 1, at approximately 6
a.m. CDT.

To access the conference call, which is open to the public, call 888-690-9634
(toll free) 15 minutes prior to the scheduled start time. Callers will be
required to supply EARNINGS as the passcode and MR. STEVEN ESCHBACH as the
leader. Callers will be placed on hold with music until the call begins.

Integrys Energy Group will webcast the event live at
http://www.integrysgroup.com/investor/presentations.aspx.

If you are unable to participate in the live event, the rebroadcast of the
complete conference call will be available for replay from 10:00 a.m. CDT on
May 1, 2009, until August 4, 2009. To access the replay, call 866-411-1705
(toll free). An archive of the webcast will also be available on the
company's Web site at
http://www.integrysgroup.com/investor/presentations.aspx.

About Integrys Energy Group, Inc.
Integrys Energy Group, Inc. (NYSE: TEG), headquartered in Chicago, Illinois,
is a holding company for energy related subsidiaries, which includes regulated
utilities and nonregulated subsidiaries.

The six regulated utilities consist of:

-- The Peoples Gas Light and Coke Company, a natural gas utility serving
approximately 819,000 customers in the city of Chicago.
-- Wisconsin Public Service Corporation, an electric and natural gas
utility serving approximately 436,000 electric customers and
approximately 316,000 natural gas customers in northeastern Wisconsin
and an adjacent portion of Michigan's Upper Peninsula.
-- Minnesota Energy Resources Corporation, a natural gas utility serving
approximately 210,000 customers throughout Minnesota.
-- Michigan Gas Utilities Corporation, a natural gas utility serving
approximately 166,000 customers in lower Michigan.
-- North Shore Gas Company, a natural gas utility serving approximately
158,000 customers in the northern suburbs of Chicago.

-- Upper Peninsula Power Company, an electric utility serving
approximately
52,000 customers in Michigan's Upper Peninsula.

The company's principal nonregulated subsidiary is:

-- 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 and Canada.

More information about Integrys Energy Group, Inc. is available online at
www.integrysgroup.com.

SOURCE Integrys Energy Group, Inc.

Donna M. Sheedy, Manager - Investor Relations of Integrys Energy Group, Inc.,
+1-920-433-1857