Commission
File
Number
|
Registrant;
State of Incorporation
Address;
and Telephone Number
|
IRS
Employer
Identification
No.
|
1-11337
|
INTEGRYS
ENERGY GROUP, INC.
(A
Wisconsin
Corporation)
130
East
Randolph Drive
Chicago,
Illinois 60601-6207
(312)
228-5400
|
39-1775292
|
SIGNATURE
|
|
Pursuant
to
the requirements of the Securities Exchange Act of 1934, the Registrants
have duly caused this report to be signed on their behalf by the
undersigned hereunto duly authorized.
|
|
INTEGRYS
ENERGY GROUP, INC.
By: /s/
Joseph P. O'Leary
Joseph
P.
O'Leary
Senior
Vice
President
and
Chief
Financial Officer
|
|
Date:
May 4,
2007
|
|
Exhibit
Number |
Description
|
3.1*
|
Amendments
to
Restated Articles of Incorporation of Integrys Energy Group,
Inc.
|
3.2*
|
Restated
Articles of Incorporation of Integrys Energy Group, Inc., as
amended.
|
3.3*
|
Amendments
to
Bylaws of Integrys Energy Group, Inc.
|
3.4*
|
Bylaws
of
Integrys Energy Group, Inc., as amended.
|
3.5*
|
Amendments
to
Bylaws of Wisconsin Public Service Corporation.
|
3.6*
|
Bylaws
of
Wisconsin Public Service Corporation, as amended.
|
23
|
Consent
of
Independent Registered Public Accounting Firm for Peoples Energy
Corporation
|
99.1*
|
Press
release
issued February 21, 2007.
|
99.2
|
Unaudited
pro
forma condensed combined financial statements as of and for the year
ended
December 31, 2006
|