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<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Registration No.
333-________ </FONT></P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION  <BR>Washington, D.C. 20549  </FONT></P>

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     <P ALIGN=CENTER>_________________ </P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>FORM S-8<BR>REGISTRATION
STATEMENT  <BR>Under  <BR>THE SECURITIES ACT OF 1933  </FONT></P>

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     <P ALIGN=CENTER>_________________ </P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>INTEGRYS ENERGY GROUP,
INC. <BR>(formerly known as WPS Resources Corporation)</B><BR>(Exact name of registrant as specified
in its charter)  </FONT></P>


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     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Wisconsin</B></FONT></TD>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>39-1775292</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(State or other jurisdiction of</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(I.R.S. Employer</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>incorporation or organization)</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Identification No.)</FONT></TD></TR>
</TABLE>



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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>130 East Randolph
Drive<BR>Chicago, Illinois 60601-6207  <BR>(312)            228-5400</B>   <BR>(Address of principal
executive offices)  </FONT></P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Peoples Energy
Corporation Directors Stock and Option Plan<BR>Peoples Energy Corporation 1990 Long-Term
Incentive Compensation Plan</B>  <BR>(Full title of the plans)  </FONT></P>


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     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Larry L. Weyers</B></FONT></TD>
     <TD WIDTH=50% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Copy to:</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>President and Chief Executive Officer</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Integrys Energy Group, Inc.</B></FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Russell E. Ryba</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>130 East Randolph Drive</B></FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Foley &amp; Lardner LLP</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Chicago, Illinois 60601-6207</B></FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>777 East Wisconsin Avenue</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>(312) 228-5401</B></FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Milwaukee, Wisconsin 53202-5367</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(Name and address, and telephone number, including area</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>(414) 297-5668</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>code, of agent for service)</FONT></TD></TR>
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     <TH COLSPAN=5><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CALCULATION OF REGISTRATION FEE</FONT><HR WIDTH=100% SIZE=2 COLOR=BLACK NOSHADE></TH></TR>
<TR VALIGN=Bottom>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Title of Securities to be Registered</FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount to be<BR>
Registered <SUP>(1)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Proposed<BR>
Maximum<BR>
Offering Price<BR>
Per Share<SUP>(2)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Proposed Maximum<BR>
Aggregate<BR>
Offering Price <SUP>(2)</SUP></FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount of<BR>
Registration<BR>
Fee</FONT><HR WIDTH=100% SIZE=1 COLOR=BLACK NOSHADE></TD></TR>
<TR VALIGN=Bottom>
     <TD WIDTH=25% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Common Stock</FONT></TD>
     <TD WIDTH=15% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>383,295</FONT></TD>
     <TD WIDTH=20% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$56.60</FONT></TD>
     <TD WIDTH=25% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$21,694,497</FONT></TD>
     <TD WIDTH=15% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$667</FONT></TD></TR>
<TR>
     <TD COLSPAN=5><HR NOSHADE COLOR=#000000 SIZE=2></TD></TR>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(1) </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Pursuant
to Rule 416 under the Securities Act of 1933, in the event of a stock           split,
stock dividend, or similar transaction involving the Common Stock, in           order to
prevent dilution, the number of shares registered shall be           automatically
increased to cover additional shares. </FONT></TD>
</TR>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(2) </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Estimated
for purposes of calculating the registration fee pursuant to Rule           457(c) and
Rule 457(h) under the Securities Act, based on the average of the low           and high
prices of the common stock as reported on the New York Stock Exchange           on
February 16, 2007. </FONT></TD>
</TR>
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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXPLANATORY NOTE </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to that certain Agreement and Plan of Merger, dated as of July 8, 2006 (the &#147;Merger
Agreement&#148;), by and among Integrys Energy Group, Inc. (formerly known as WPS
Resources Corporation) (the &#147;Registrant&#148;), Wedge Acquisition Corp.
(&#147;Wedge&#148;) and Peoples Energy Corporation (&#147;Peoples Energy&#148;), on
February 21, 2007 Wedge merged into Peoples Energy, resulting in Peoples Energy becoming a
wholly owned subsidiary of the Registrant. At the effective time of the merger, (1) each
Peoples Energy stock option held by the directors and officers of Peoples Energy under the
Peoples Energy Corporation Directors Stock and Option Plan (the &#147;Director Plan&#148;)
immediately prior to the effective time (the &#147;Peoples Stock Options&#148;) was
converted into an option to acquire, on the same terms and conditions as were applicable
under the Peoples Stock Options, a number of shares of Registrant&#146;s common stock
(rounded down to the nearest whole share) determined pursuant to the Merger Agreement; and
(2) shares of common stock of Peoples Energy issuable under outstanding awards made under
the Peoples Energy Corporation 1990 Long-term Incentive Compensation Plan (the
&#147;Long-Term Plan&#148;) were converted into Registrant&#146;s common stock pursuant to
the Merger Agreement. In conjunction with these transactions, the Registrant is
registering on this Registration Statement an aggregate of 383,295 shares of common stock
under the Director Plan (59,912 shares) and the Long-Term Plan (323,383 shares). </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART I </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
document or documents containing the information specified in Part I are not required to
be filed with the Securities and Exchange Commission (&#147;Commission&#148;) as part of
this Form S-8 Registration Statement. </FONT></P>



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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART II </FONT></H1>



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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT </FONT></H1>

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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 3.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>INCORPORATION
OF DOCUMENTS BY REFERENCE</U>.</FONT></TD>
</TR>
</TABLE>
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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following documents have been previously filed by the Registrant with the Commission and
are incorporated herein by reference: </FONT></P>


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     <TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B><U>Integrys Energy Group Commission Filings (File No. 001-11337)</U></B></FONT></TD>
     <TD WIDTH=15% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B><U>Filing Date</U></B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Annual Report on Form 10-K for the year ended December 31, 2005 (excluding Item 8,</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>February 28, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Financial Statements)</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Quarterly Report on Form 10-Q for the quarter ended March 31, 2006 (excluding Item 1,</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>May 4, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Financial Statements)</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Quarterly Report on Form 10-Q for the quarter ended June 30, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>August 3, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Quarterly Report on Form 10-Q for the quarter ended September 30, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>November 2, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated February 8, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>February 13, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated June 9, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>June 15, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated July 1, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>July 5, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated July 8, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>July 11, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated July 10, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>July 10, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated July 12, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>July 12, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated July 13, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>July 14, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated August 9, 2006, revising indicated sections of</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>August 9, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Integrys Energy Group&#146;s Annual Report on Form 10-K (including Item 8) for the year</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ended December 31, 2005 and the March 31, 2006 Form 10-Q (including Item 1) for the</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>impact of discontinued operations</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated September 21, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>September 27, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated October 3, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>October 3, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated November 21, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>November 21, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated November 28, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>December 1, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated December 7, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>December 13, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Current Report on Form 8-K dated December 11, 2006</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>December 11, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Definitive Proxy Statement for 2006 Annual Meeting of Shareholders</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>April 7, 2006</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Description of Common Stock of Integrys Energy Group contained in the Registration</FONT></TD>
     <TD ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>June 1, 1994</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Statement on Form 8-B, and any amendments or reports filed for the purpose of</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>updating such description</FONT></TD></TR>
</TABLE>






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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All
documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act after the date of filing of this Registration Statement and
prior to such time as the Registrant files a post-effective amendment to this Registration
Statement which indicates that all securities offered hereby have been sold or which
deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be a part hereof from the date of filing
of such documents. </FONT></P>

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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 4.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>DESCRIPTION
OF SECURITIES</U>. </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable. </FONT></P>


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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 5.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>INTERESTS
OF NAMED EXPERTS AND COUNSEL</U>.</FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable. </FONT></P>

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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 6.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>INDEMNIFICATION
OF DIRECTORS AND OFFICERS</U>.</FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the Wisconsin Business Corporation Law and Article VI of the by-laws of Registrant,
directors and officers of Registrant are entitled to mandatory indemnification from us
against certain liabilities and expenses to the extent such officers or directors are
successful on the merits or otherwise in connection with a proceeding, unless it is
determined that the director or officer breached or failed to perform his or her duties to
Registrant and such breach or failure constituted: (a) a willful failure to deal fairly
with Registrant or its shareholders in connection with a matter in which the director or
officer had a material conflict of interest; (b) a violation of the criminal law unless
the director or officer had reasonable cause to believe his or her conduct was lawful or
had no reasonable cause to believe his or her conduct was unlawful; (c) a transaction from
which the director or officer derived an improper personal profit (unless such profit is
immaterial under the circumstances); or (d) willful misconduct. It should also be noted
that the Wisconsin Business Corporation Law specifically states that it is the policy of
Wisconsin to require or permit indemnification in connection with a proceeding involving
securities regulation to the extent required or permitted as described above.
Additionally, under the Wisconsin Business Corporation Law, directors of Registrant are
not subject to personal liability to Registrant, its shareholders or any person asserting
rights on behalf of Registrant or its shareholders for certain breaches or failures to
perform any duty resulting solely from their status as directors or officers except in
circumstances paralleling those in subparagraphs (a) through (d) outlined above. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
indemnification provided by the Wisconsin Business Corporation Law and our by-laws is not
exclusive of any other rights to which a director or officer may be entitled. The general
effect of the foregoing provisions may be to reduce the circumstances under which an
officer or director may be required to bear the economic burden of the foregoing
liabilities and expenses. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
indemnification described above may be broad enough to cover liabilities under the
Securities Act of 1933. Officers and directors of Registrant would also be indemnified by
the underwriters or agents for certain claims under the Securities Act of 1933 pursuant to
the terms of the proposed form of underwriting agreement and agency agreement filed
herewith. Registrant has purchased insurance permitted by the Wisconsin Business
Corporation Law on behalf of its officers and directors which may cover liabilities under
the Securities Act of 1933. </FONT></P>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 7.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>EXEMPTION
FROM REGISTRATION CLAIMED</U>.</FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
applicable. </FONT></P>




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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 8.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>EXHIBITS</U>. </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following exhibits have been filed (except where otherwise indicated) as part of this
Registration Statement: </FONT></P>


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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>       <U>Exhibit No.</U> </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Exhibit</U></FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>            3 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>By-laws, as in Effect at February 21, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.1 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Restated
Articles of Incorporation, as in Effect at February 21, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.2 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Peoples
Energy Corporation Directors Stock and Option Plan as amended December 4, 2002
                           (incorporated by reference to Exhibit 10(g) to Quarterly
Report on Form 10-Q of Peoples                            Energy for the quarterly period
ended December 31, 2002, filed February 11, 2003 [File No.
                           1-05540]).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.3 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Peoples
Energy Corporation 1990 Long-Term Incentive Compensation Plan as amended December
                           4, 2002 (incorporated by reference to Exhibit 10(d) to
Quarterly Report on Form 10-Q of                            Peoples Energy for the
quarterly period ended December 31, 2002, filed February 11, 2003
                           [File No. 1-05540]).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>            5 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Foley &amp; Lardner LLP.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>          23.1 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Deloitte &amp; Touche LLP.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>          23.2 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Foley &amp; Lardner LLP (contained in Exhibit 5).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           24 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Powers
of Attorney.</FONT></TD>
</TR>
</TABLE>
<BR>



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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>ITEM 9.  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>UNDERTAKINGS</U>. </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.&nbsp;&nbsp;&nbsp;&nbsp;          The
undersigned Registrant hereby undertakes:  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;          to
file, during any period in which offers or sales are being made, a
          post-effective amendment to this registration statement:  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;          to
include any prospectus required by Section 10(a)(3) of the Securities Act of
          1933;  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;          to
reflect in the prospectus any facts or events arising after the effective           date
of the registration statement (or the most recent post-effective amendment
          thereof) which, individually or in the aggregate, represent a fundamental
change           in the information set forth in the registration statement.
Notwithstanding the           foregoing, any increase or decrease in volume of securities
offered (if the           total dollar value of securities offered would not exceed that
which was           registered) and any deviation from the low or high end of the
estimated maximum           offering range may be reflected in the form of prospectus
filed with the           Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume           and price represent no more than a 20% change in the maximum
aggregate offering           price set forth in the &#147;Calculation of Registration Fee&#148; table
in the           effective registration statement.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;          to
include any material information with respect to the plan of distribution not
          previously disclosed in the registration statement or any material change to
          such information in the registration statement.  </FONT></P>





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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><I>provided, however,</I> that
paragraphs (a)(1)(i) and (a)(1)(ii) of this section do not apply if the registration
statement is on Form S-8, and the information required to be
included in a post-effective amendment by those paragraphs is contained in periodic
reports filed with or furnished to the Commission by the Registrant pursuant to Section 13
or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the registration statement; and </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><I>provided, however,</I> that
paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the
registration statement is on Form S-3 or Form F-3 and the information required to be
included in a post-effective amendment by those paragraphs is contained in reports filed
with or furnished to the Commission by the Registrant pursuant to section 13 or section
15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the
registration statement, or is contained in a form of prospectus filed pursuant to Rule
424(b) that is part of the registration statement. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;          that,
for the purpose of determining any liability under the Securities Act of           1933,
each such post-effective amendment shall be deemed to be a new           registration
statement relating to the securities offered therein, and the           offering of such
securities at the time shall be deemed to be the initial bona           fide offering
thereof.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;          to
remove from registration by means of a post-effective amendment any of the
          securities being registered which remain unsold at the termination of the
          offering.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;          that,
for the purpose of determining liability under the Securities Act of 1933           to
any purchaser:  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;          Each
prospectus filed by a Registrant pursuant to Rule 424(b)(3) shall be deemed           to
be part of the registration statement as of the date the filed prospectus was
          deemed part of and included in the registration statement; and  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;          Each
prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5) or           (b)(7) as
part of a registration statement in reliance on Rule 430B relating to           an
offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of
          providing the information required by Section 10(a) of the Securities Act of
          1933 shall be deemed to be part of and included in the registration statement
as           of the earlier of the date such form of prospectus is first used after
          effectiveness or the date of the first contract of sale of securities in the
          offering described in the prospectus. As provided in Rule 430B, for liability
          purposes of the issuer and any person that is at that date an underwriter, such
          date shall be deemed to be a new effective date of the registration statement
          relating to the securities in the registration statement to which the
prospectus           relates, and the offering of such securities at that time shall be
deemed to be           the initial bona fide offering thereof. Provided, however, that no
statement           made in a registration statement or prospectus that is part of the
registration           statement or made in a document incorporated or deemed
incorporated by reference           into the registration statement or prospectus that is
part of the registration           statement will, as to a purchaser with a time of
contract of sale prior to such           effective date, supersede or modify any
statement that was made in the           registration statement or prospectus that was
part of the registration statement           or made in any such document immediately
prior to such effective date.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;          That,
for the purpose of determining liability of a Registrant under the           Securities
Act of 1933 to any purchaser in the initial distribution of the           securities,
each undersigned Registrant undertakes that in a primary offering of           securities
of an undersigned Registrant pursuant to this registration statement,
          regardless of the underwriting method used to sell the securities to the
          purchaser, if the securities are offered or sold to such purchaser by means of
          any of the following communications, the undersigned Registrant will be a
seller           to the purchaser and will be considered to offer or sell such securities
to such           purchaser:  </FONT></P>





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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;          Any
preliminary prospectus or prospectus of an undersigned Registrant relating           to
the offering required to be filed pursuant to Rule 424;  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;          Any
free writing prospectus relating to the offering prepared by or on behalf of           an
undersigned Registrant or used or referred to by an undersigned Registrant;  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;          The
portion of any other free writing prospectus relating to the offering
          containing material information about an undersigned Registrant or its
          securities provided by or on behalf of an undersigned Registrant; and  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp;          Any
other communication that is an offer in the offering made by an undersigned
          Registrant to the purchaser.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;          The
undersigned Registrant hereby undertakes, that, for purposes of determining           any
liability under the Securities Act of 1933, each filing of the           Registrant&#146;s
annual report pursuant to Section 13(a) or Section 15(d) of           the Securities
Exchange Act of 1934 that is incorporated by reference in this           registration
statement shall be deemed to be a new registration statement           relating to the
securities offered herein, and the offering of such securities           at that time
shall be deemed to be the initial bona fide offering thereof.  </FONT></P>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;          Insofar
as indemnification for liabilities arising under the Securities Act of           1933 may
be permitted to directors, officers and controlling persons of the           Registrant
pursuant to the foregoing provisions, or otherwise, the Registrant           has been
advised that in the opinion of the Securities and Exchange Commission           such
indemnification is against public policy as expressed in the Act and is,
          therefore, unenforceable. In the event that a claim for indemnification against
          such liabilities (other than the payment by the Registrant of expenses incurred
          or paid by a director, officer or controlling person of the Registrant in the
          successful defense of any action, suit or proceeding) is asserted by such
          director, officer or controlling person in connection with the securities being
          registered, the Registrant will, unless in the opinion of its counsel the
matter           has been settled by controlling precedent, submit to a court of
appropriate           jurisdiction the question whether such indemnification by it is
against public           policy as expressed in the Act and will be governed by the final
adjudication of           such issue.  </FONT></P>



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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURES </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, the Registrants certify that they have
reasonable grounds to believe that they meet all of the requirements for filing on
Form&nbsp;S-8 and have duly caused this Registration Statement to be signed on their
behalf by the undersigned, thereunto duly authorized, in the City of Chicago, and State of
Illinois, on this 22<SUP>nd </SUP>day of February, 2007. </FONT></P>


<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>INTEGRYS ENERGY GROUP, INC.</B></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR><BR>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>By:&nbsp;&nbsp;<U>/s/ Larry L. Weyers</U></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Larry L. Weyers</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;President and Chief Executive Officer</FONT></TD></TR>
</TABLE>




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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated. </FONT></P>




<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Name</U></FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Capacity</U></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD WIDTH=30% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR><BR><U>/s/ Larry L. Weyers</U></FONT></TD>
     <TD WIDTH=70% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>President, Chief Executive Officer and Director*</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Larry L. Weyers</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR><BR><U>/s/ Joseph P. O&#146;Leary</U></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Senior Vice President and Chief Financial Officer</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Joseph P. O&#146;Leary</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(Principal Financial Officer)*</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR><BR><U>/s/ Diane L. Ford</U></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Vice President and Corporate Controller (Principal</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Diane L. Ford</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Accounting Officer)*</FONT></TD></TR>
</TABLE>




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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>* Each of the above signatures is
affixed as of February 22, 2007. </FONT></P>


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<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD WIDTH=35% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Albert J. Budney, Jr. <SUP>+</SUP></FONT></TD>
     <TD WIDTH=65% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Diana S. Ferguson</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Ellen Carnahan <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>James L. Kemerling <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>James R. Boris</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Chairman of the Board and Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>John C. Meng <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>John W. Higgins</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Kathryn Hasselblad-Pascale <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Keith E. Bailey</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Michael E. Lavin</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Pastora San Juan Cafferty</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Richard A. Bemis <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Robert C. Gallagher <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>William F. Protz, Jr. <SUP>+</SUP></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>William J. Brodsky</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Director</FONT></TD></TR>
</TABLE>

<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><SUP>+</SUP>By: </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>/s/ Larry L. Weyers<BR>Larry L. Weyers<BR>
Attorney-in-Fact*</FONT></TD>
</TR>
</TABLE>
<BR>



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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>* Each of the above signatures is
affixed as of February 22, 2007. </FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXHIBIT INDEX </FONT></P>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Form S-8
Registration Statement for Integrys Energy Group, Inc. </U></FONT></P>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>       <U>Exhibit No.</U> </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Exhibit</U></FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>            3 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>By-laws, as in Effect at February 21, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.1 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Restated
Articles of Incorporation, as in Effect at February 21, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.2 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Peoples
Energy Corporation Directors Stock and Option Plan as amended December 4, 2002
                           (incorporated by reference to Exhibit 10(g) to Quarterly
Report on Form 10-Q of Peoples                            Energy for the quarterly period
ended December 31, 2002, filed February 11, 2003 [File No.
                           1-05540]).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           4.3 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Peoples
Energy Corporation 1990 Long-Term Incentive Compensation Plan as amended December
                           4, 2002 (incorporated by reference to Exhibit 10(d) to
Quarterly Report on Form 10-Q of                            Peoples Energy for the
quarterly period ended December 31, 2002, filed February 11, 2003
                           [File No. 1-05540]).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>            5 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Foley &amp; Lardner LLP.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>          23.1 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Deloitte &amp; Touche LLP.</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>          23.2 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Foley &amp; Lardner LLP (contained in Exhibit 5).</FONT></TD>
</TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>           24 </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Powers
of Attorney.</FONT></TD>
</TR>
</TABLE>
<BR>





</BODY>
</HTML>
[{"type": "S-8", "sequence": "1", "filename": "cmw2700.htm", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 57134}]
{"company-data": {"conformed-name": "INTEGRYS ENERGY GROUP, INC.", "cik": "0000916863", "assigned-sic": "4931", "irs-number": "391775292", "state-of-incorporation": "WI", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-140912", "film-number": "07652968"}, "business-address": {"street1": "130 EAST RANDOLPH DRIVE", "city": "CHICAGO", "state": "IL", "zip": "60601", "phone": "800-699-1269"}, "mail-address": {"street1": "130 EAST RANDOLPH DRIVE", "city": "CHICAGO", "state": "IL", "zip": "60601"}, "former-company": [{"former-conformed-name": "Integrys Energy Group, Inc.", "date-changed": "20070222"}, {"former-conformed-name": "WPS RESOURCES CORP", "date-changed": "19940103"}]}
Registration No.
333-________
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_________________
FORM S-8
REGISTRATION
STATEMENT
Under
THE SECURITIES ACT OF 1933
_________________
INTEGRYS ENERGY GROUP,
INC.
(formerly known as WPS Resources Corporation)
(Exact name of registrant as specified
in its charter)
Wisconsin
39-1775292
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification No.)
130 East Randolph
Drive
Chicago, Illinois 60601-6207
(312)            228-5400
(Address of principal
executive offices)
Peoples Energy
Corporation Directors Stock and Option Plan
Peoples Energy Corporation 1990 Long-Term
Incentive Compensation Plan
(Full title of the plans)
Larry L. Weyers
Copy to:
President and Chief Executive Officer
Integrys Energy Group, Inc.
Russell E. Ryba
130 East Randolph Drive
Foley & Lardner LLP
Chicago, Illinois 60601-6207
777 East Wisconsin Avenue
(312) 228-5401
Milwaukee, Wisconsin 53202-5367
(Name and address, and telephone number, including area
(414) 297-5668
code, of agent for service)
CALCULATION OF REGISTRATION FEE
Title of Securities to be Registered
Amount to be
Registered
(1)
Proposed
Maximum
Offering Price
Per Share
(2)
Proposed Maximum
Aggregate
Offering Price
(2)
Amount of
Registration
Fee
Common Stock
383,295
$56.60
$21,694,497
$667
(1)
Pursuant
to Rule 416 under the Securities Act of 1933, in the event of a stock           split,
stock dividend, or similar transaction involving the Common Stock, in           order to
prevent dilution, the number of shares registered shall be           automatically
increased to cover additional shares.
(2)
Estimated
for purposes of calculating the registration fee pursuant to Rule           457(c) and
Rule 457(h) under the Securities Act, based on the average of the low           and high
prices of the common stock as reported on the New York Stock Exchange           on
February 16, 2007.
EXPLANATORY NOTE
Pursuant
to that certain Agreement and Plan of Merger, dated as of July 8, 2006 (the "Merger
Agreement"), by and among Integrys Energy Group, Inc. (formerly known as WPS
Resources Corporation) (the "Registrant"), Wedge Acquisition Corp.
("Wedge") and Peoples Energy Corporation ("Peoples Energy"), on
February 21, 2007 Wedge merged into Peoples Energy, resulting in Peoples Energy becoming a
wholly owned subsidiary of the Registrant. At the effective time of the merger, (1) each
Peoples Energy stock option held by the directors and officers of Peoples Energy under the
Peoples Energy Corporation Directors Stock and Option Plan (the "Director Plan")
immediately prior to the effective time (the "Peoples Stock Options") was
converted into an option to acquire, on the same terms and conditions as were applicable
under the Peoples Stock Options, a number of shares of Registrant's common stock
(rounded down to the nearest whole share) determined pursuant to the Merger Agreement; and
(2) shares of common stock of Peoples Energy issuable under outstanding awards made under
the Peoples Energy Corporation 1990 Long-term Incentive Compensation Plan (the
"Long-Term Plan") were converted into Registrant's common stock pursuant to
the Merger Agreement. In conjunction with these transactions, the Registrant is
registering on this Registration Statement an aggregate of 383,295 shares of common stock
under the Director Plan (59,912 shares) and the Long-Term Plan (323,383 shares).
PART I
INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS
The
document or documents containing the information specified in Part I are not required to
be filed with the Securities and Exchange Commission ("Commission") as part of
this Form S-8 Registration Statement.
PART II
INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT
ITEM 3.
INCORPORATION
OF DOCUMENTS BY REFERENCE
.
The
following documents have been previously filed by the Registrant with the Commission and
are incorporated herein by reference:
Integrys Energy Group Commission Filings (File No. 001-11337)
Filing Date
Annual Report on Form 10-K for the year ended December 31, 2005 (excluding Item 8,
February 28, 2006
Financial Statements)
Quarterly Report on Form 10-Q for the quarter ended March 31, 2006 (excluding Item 1,
May 4, 2006
Financial Statements)
Quarterly Report on Form 10-Q for the quarter ended June 30, 2006
August 3, 2006
Quarterly Report on Form 10-Q for the quarter ended September 30, 2006
November 2, 2006
Current Report on Form 8-K dated February 8, 2006
February 13, 2006
Current Report on Form 8-K dated June 9, 2006
June 15, 2006
Current Report on Form 8-K dated July 1, 2006
July 5, 2006
Current Report on Form 8-K dated July 8, 2006
July 11, 2006
Current Report on Form 8-K dated July 10, 2006
July 10, 2006
Current Report on Form 8-K dated July 12, 2006
July 12, 2006
Current Report on Form 8-K dated July 13, 2006
July 14, 2006
Current Report on Form 8-K dated August 9, 2006, revising indicated sections of
August 9, 2006
Integrys Energy Group's Annual Report on Form 10-K (including Item 8) for the year
ended December 31, 2005 and the March 31, 2006 Form 10-Q (including Item 1) for the
impact of discontinued operations
Current Report on Form 8-K dated September 21, 2006
September 27, 2006
Current Report on Form 8-K dated October 3, 2006
October 3, 2006
Current Report on Form 8-K dated November 21, 2006
November 21, 2006
Current Report on Form 8-K dated November 28, 2006
December 1, 2006
Current Report on Form 8-K dated December 7, 2006
December 13, 2006
Current Report on Form 8-K dated December 11, 2006
December 11, 2006
Definitive Proxy Statement for 2006 Annual Meeting of Shareholders
April 7, 2006
Description of Common Stock of Integrys Energy Group contained in the Registration
June 1, 1994
Statement on Form 8-B, and any amendments or reports filed for the purpose of
updating such description
All
documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act after the date of filing of this Registration Statement and
prior to such time as the Registrant files a post-effective amendment to this Registration
Statement which indicates that all securities offered hereby have been sold or which
deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be a part hereof from the date of filing
of such documents.
ITEM 4.
DESCRIPTION
OF SECURITIES
.
Not
applicable.
ITEM 5.
INTERESTS
OF NAMED EXPERTS AND COUNSEL
.
Not
applicable.
ITEM 6.
INDEMNIFICATION
OF DIRECTORS AND OFFICERS
.
Pursuant
to the Wisconsin Business Corporation Law and Article VI of the by-laws of Registrant,
directors and officers of Registrant are entitled to mandatory indemnification from us
against certain liabilities and expenses to the extent such officers or directors are
successful on the merits or otherwise in connection with a proceeding, unless it is
determined that the director or officer breached or failed to perform his or her duties to
Registrant and such breach or failure constituted: (a) a willful failure to deal fairly
with Registrant or its shareholders in connection with a matter in which the director or
officer had a material conflict of interest; (b) a violation of the criminal law unless
the director or officer had reasonable cause to believe his or her conduct was lawful or
had no reasonable cause to believe his or her conduct was unlawful; (c) a transaction from
which the director or officer derived an improper personal profit (unless such profit is
immaterial under the circumstances); or (d) willful misconduct. It should also be noted
that the Wisconsin Business Corporation Law specifically states that it is the policy of
Wisconsin to require or permit indemnification in connection with a proceeding involving
securities regulation to the extent required or permitted as described above.
Additionally, under the Wisconsin Business Corporation Law, directors of Registrant are
not subject to personal liability to Registrant, its shareholders or any person asserting
rights on behalf of Registrant or its shareholders for certain breaches or failures to
perform any duty resulting solely from their status as directors or officers except in
circumstances paralleling those in subparagraphs (a) through (d) outlined above.
The
indemnification provided by the Wisconsin Business Corporation Law and our by-laws is not
exclusive of any other rights to which a director or officer may be entitled. The general
effect of the foregoing provisions may be to reduce the circumstances under which an
officer or director may be required to bear the economic burden of the foregoing
liabilities and expenses.
The
indemnification described above may be broad enough to cover liabilities under the
Securities Act of 1933. Officers and directors of Registrant would also be indemnified by
the underwriters or agents for certain claims under the Securities Act of 1933 pursuant to
the terms of the proposed form of underwriting agreement and agency agreement filed
herewith. Registrant has purchased insurance permitted by the Wisconsin Business
Corporation Law on behalf of its officers and directors which may cover liabilities under
the Securities Act of 1933.
ITEM 7.
EXEMPTION
FROM REGISTRATION CLAIMED
.
Not
applicable.
ITEM 8.
EXHIBITS
.
The
following exhibits have been filed (except where otherwise indicated) as part of this
Registration Statement:
Exhibit No.
Exhibit
3
By-laws, as in Effect at February 21, 2007.
4.1
Restated
Articles of Incorporation, as in Effect at February 21, 2007.
4.2
Peoples
Energy Corporation Directors Stock and Option Plan as amended December 4, 2002
                           (incorporated by reference to Exhibit 10(g) to Quarterly
Report on Form 10-Q of Peoples                            Energy for the quarterly period
ended December 31, 2002, filed February 11, 2003 [File No.
                           1-05540]).
4.3
Peoples
Energy Corporation 1990 Long-Term Incentive Compensation Plan as amended December
                           4, 2002 (incorporated by reference to Exhibit 10(d) to
Quarterly Report on Form 10-Q of                            Peoples Energy for the
quarterly period ended December 31, 2002, filed February 11, 2003
                           [File No. 1-05540]).
5
Opinion
of Foley & Lardner LLP.
23.1
Consent
of Deloitte & Touche LLP.
23.2
Consent
of Foley & Lardner LLP (contained in Exhibit 5).
24
Powers
of Attorney.
ITEM 9.
UNDERTAKINGS
.
a.              The
undersigned Registrant hereby undertakes:
(1)              to
file, during any period in which offers or sales are being made, a
          post-effective amendment to this registration statement:
(a)              to
include any prospectus required by Section 10(a)(3) of the Securities Act of
          1933;
(b)              to
reflect in the prospectus any facts or events arising after the effective           date
of the registration statement (or the most recent post-effective amendment
          thereof) which, individually or in the aggregate, represent a fundamental
change           in the information set forth in the registration statement.
Notwithstanding the           foregoing, any increase or decrease in volume of securities
offered (if the           total dollar value of securities offered would not exceed that
which was           registered) and any deviation from the low or high end of the
estimated maximum           offering range may be reflected in the form of prospectus
filed with the           Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume           and price represent no more than a 20% change in the maximum
aggregate offering           price set forth in the "Calculation of Registration Fee" table
in the           effective registration statement.
(c)              to
include any material information with respect to the plan of distribution not
          previously disclosed in the registration statement or any material change to
          such information in the registration statement.
provided, however,
that
paragraphs (a)(1)(i) and (a)(1)(ii) of this section do not apply if the registration
statement is on Form S-8, and the information required to be
included in a post-effective amendment by those paragraphs is contained in periodic
reports filed with or furnished to the Commission by the Registrant pursuant to Section 13
or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the registration statement; and
provided, however,
that
paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the
registration statement is on Form S-3 or Form F-3 and the information required to be
included in a post-effective amendment by those paragraphs is contained in reports filed
with or furnished to the Commission by the Registrant pursuant to section 13 or section
15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the
registration statement, or is contained in a form of prospectus filed pursuant to Rule
424(b) that is part of the registration statement.
(2)              that,
for the purpose of determining any liability under the Securities Act of           1933,
each such post-effective amendment shall be deemed to be a new           registration
statement relating to the securities offered therein, and the           offering of such
securities at the time shall be deemed to be the initial bona           fide offering
thereof.
(3)              to
remove from registration by means of a post-effective amendment any of the
          securities being registered which remain unsold at the termination of the
          offering.
(4)              that,
for the purpose of determining liability under the Securities Act of 1933           to
any purchaser:
(a)              Each
prospectus filed by a Registrant pursuant to Rule 424(b)(3) shall be deemed           to
be part of the registration statement as of the date the filed prospectus was
          deemed part of and included in the registration statement; and
(b)              Each
prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5) or           (b)(7) as
part of a registration statement in reliance on Rule 430B relating to           an
offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of
          providing the information required by Section 10(a) of the Securities Act of
          1933 shall be deemed to be part of and included in the registration statement
as           of the earlier of the date such form of prospectus is first used after
          effectiveness or the date of the first contract of sale of securities in the
          offering described in the prospectus. As provided in Rule 430B, for liability
          purposes of the issuer and any person that is at that date an underwriter, such
          date shall be deemed to be a new effective date of the registration statement
          relating to the securities in the registration statement to which the
prospectus           relates, and the offering of such securities at that time shall be
deemed to be           the initial bona fide offering thereof. Provided, however, that no
statement           made in a registration statement or prospectus that is part of the
registration           statement or made in a document incorporated or deemed
incorporated by reference           into the registration statement or prospectus that is
part of the registration           statement will, as to a purchaser with a time of
contract of sale prior to such           effective date, supersede or modify any
statement that was made in the           registration statement or prospectus that was
part of the registration statement           or made in any such document immediately
prior to such effective date.
(5)              That,
for the purpose of determining liability of a Registrant under the           Securities
Act of 1933 to any purchaser in the initial distribution of the           securities,
each undersigned Registrant undertakes that in a primary offering of           securities
of an undersigned Registrant pursuant to this registration statement,
          regardless of the underwriting method used to sell the securities to the
          purchaser, if the securities are offered or sold to such purchaser by means of
          any of the following communications, the undersigned Registrant will be a
seller           to the purchaser and will be considered to offer or sell such securities
to such           purchaser:
(a)              Any
preliminary prospectus or prospectus of an undersigned Registrant relating           to
the offering required to be filed pursuant to Rule 424;
(b)              Any
free writing prospectus relating to the offering prepared by or on behalf of           an
undersigned Registrant or used or referred to by an undersigned Registrant;
(c)              The
portion of any other free writing prospectus relating to the offering
          containing material information about an undersigned Registrant or its
          securities provided by or on behalf of an undersigned Registrant; and
(d)              Any
other communication that is an offer in the offering made by an undersigned
          Registrant to the purchaser.
b.                 The
undersigned Registrant hereby undertakes, that, for purposes of determining           any
liability under the Securities Act of 1933, each filing of the           Registrant's
annual report pursuant to Section 13(a) or Section 15(d) of           the Securities
Exchange Act of 1934 that is incorporated by reference in this           registration
statement shall be deemed to be a new registration statement           relating to the
securities offered herein, and the offering of such securities           at that time
shall be deemed to be the initial bona fide offering thereof.
c.                 Insofar
as indemnification for liabilities arising under the Securities Act of           1933 may
be permitted to directors, officers and controlling persons of the           Registrant
pursuant to the foregoing provisions, or otherwise, the Registrant           has been
advised that in the opinion of the Securities and Exchange Commission           such
indemnification is against public policy as expressed in the Act and is,
          therefore, unenforceable. In the event that a claim for indemnification against
          such liabilities (other than the payment by the Registrant of expenses incurred
          or paid by a director, officer or controlling person of the Registrant in the
          successful defense of any action, suit or proceeding) is asserted by such
          director, officer or controlling person in connection with the securities being
          registered, the Registrant will, unless in the opinion of its counsel the
matter           has been settled by controlling precedent, submit to a court of
appropriate           jurisdiction the question whether such indemnification by it is
against public           policy as expressed in the Act and will be governed by the final
adjudication of           such issue.
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, the Registrants certify that they have
reasonable grounds to believe that they meet all of the requirements for filing on
Form S-8 and have duly caused this Registration Statement to be signed on their
behalf by the undersigned, thereunto duly authorized, in the City of Chicago, and State of
Illinois, on this 22
nd
day of February, 2007.
INTEGRYS ENERGY GROUP, INC.
By:
/s/ Larry L. Weyers
Larry L. Weyers
President and Chief Executive Officer
Pursuant
to the requirements of the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated.
Name
Capacity
/s/ Larry L. Weyers
President, Chief Executive Officer and Director*
Larry L. Weyers
/s/ Joseph P. O'Leary
Senior Vice President and Chief Financial Officer
Joseph P. O'Leary
(Principal Financial Officer)*
/s/ Diane L. Ford
Vice President and Corporate Controller (Principal
Diane L. Ford
Accounting Officer)*
* Each of the above signatures is
affixed as of February 22, 2007.
Albert J. Budney, Jr.
+
Director
Diana S. Ferguson
Director
Ellen Carnahan
+
Director
James L. Kemerling
+
Director
James R. Boris
Chairman of the Board and Director
John C. Meng
+
Director
John W. Higgins
Director
Kathryn Hasselblad-Pascale
+
Director
Keith E. Bailey
Director
Michael E. Lavin
Director
Pastora San Juan Cafferty
Director
Richard A. Bemis
+
Director
Robert C. Gallagher
+
Director
William F. Protz, Jr.
+
Director
William J. Brodsky
Director
+
By:
/s/ Larry L. Weyers
Larry L. Weyers
Attorney-in-Fact*
* Each of the above signatures is
affixed as of February 22, 2007.
EXHIBIT INDEX
Form S-8
Registration Statement for Integrys Energy Group, Inc.
Exhibit No.
Exhibit
3
By-laws, as in Effect at February 21, 2007.
4.1
Restated
Articles of Incorporation, as in Effect at February 21, 2007.
4.2
Peoples
Energy Corporation Directors Stock and Option Plan as amended December 4, 2002
                           (incorporated by reference to Exhibit 10(g) to Quarterly
Report on Form 10-Q of Peoples                            Energy for the quarterly period
ended December 31, 2002, filed February 11, 2003 [File No.
                           1-05540]).
4.3
Peoples
Energy Corporation 1990 Long-Term Incentive Compensation Plan as amended December
                           4, 2002 (incorporated by reference to Exhibit 10(d) to
Quarterly Report on Form 10-Q of                            Peoples Energy for the
quarterly period ended December 31, 2002, filed February 11, 2003
                           [File No. 1-05540]).
5
Opinion
of Foley & Lardner LLP.
23.1
Consent
of Deloitte & Touche LLP.
23.2
Consent
of Foley & Lardner LLP (contained in Exhibit 5).
24
Powers
of Attorney.