<SUBMISSION>
<ACCESSION-NUMBER>0000950137-08-005745
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080418
<ITEMS>7.01
<FILING-DATE>20080422
<DATE-OF-FILING-DATE-CHANGE>20080422
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>NISOURCE INC/DE
<CIK>0001111711
<ASSIGNED-SIC>4931
<IRS-NUMBER>352108964
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-16189
<FILM-NUMBER>08769672
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>801 EAST 86TH AVE
<CITY>MERRILLVILLE
<STATE>IN
<ZIP>46410-6272
<PHONE>2196475200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>801 EAST 86TH AVE
<CITY>MERRILLVILLE
<STATE>IN
<ZIP>46410-6272
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>NEW NISOURCE INC
<DATE-CHANGED>20000412
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>c25940e8vk.htm
<DESCRIPTION>CURRENT REPORT
<TEXT>
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<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES</B>
</DIV>

<DIV align="center" style="font-size: 14pt; margin-top: 0pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>
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<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
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<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 8-K</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>CURRENT REPORT<BR>
Pursuant To Section&nbsp;13 OR 15(d) of The Securities Exchange Act of 1934</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">Date of Report (Date of earliest event reported): April&nbsp;18, 2008
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B><FONT style="border-bottom: 2px solid #000000">NiSource Inc.</FONT></B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 2pt">(Exact name of registrant as specified in its charter)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 18pt">Commission file number <U>001-16189</U>
</DIV>

<DIV align="center">
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    <TD width="47%">&nbsp;</TD>
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    <TD align="center" valign="top">Delaware
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">35-2108964</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of <BR>
incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer<BR>
Identification No.)</TD>
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    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
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    <TD align="center" valign="top">801 East 86th Avenue <BR>
Merrillville, Indiana
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="bottom">46410</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(Address of principal executive offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Zip Code)</TD>
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<DIV align="center" style="font-size: 10pt; margin-top: 18pt">Registrant&#146;s telephone number, including area code <U>(877)&nbsp;647-5990</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 18pt">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the
filing obligation of the registrant under any of the following provisions.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><FONT style="font-family: Wingdings">&#111;</FONT> Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><FONT style="font-family: Wingdings">&#111;</FONT> Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><FONT style="font-family: Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR
240.14d-2 (b))
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><FONT style="font-family: Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR
240.13e-4 (c))
</DIV>


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<TR>
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<TR valign="top">
    <TD nowrap align="left"><U>ITEM 7.01</U></TD>
    <TD>&nbsp;</TD>
    <TD><U>REGULATION FD DISCLOSURE.</U></TD>
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</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">On April&nbsp;18, 2008, PEI Holdings, Inc. (&#147;PEI&#148;), a subsidiary of NiSource Inc. (the &#147;Company&#148;),
entered into a Share Purchase Agreement (the &#147;Agreement&#148;) with BP Alternative Energy North America
Inc. (&#147;BPAE&#148;) pursuant to which PEI agreed to sell all of the outstanding stock of Whiting Clean
Energy, Inc., an Indiana corporation and wholly-owned subsidiary of PEI, to BPAE for $210,000,000.
The Agreement contains customary representations, warranties, covenants and closing conditions.
The Company anticipates the closing of the transaction to occur in the second or third quarter of
2008, depending upon the timing of the satisfaction of closing conditions, including required
approvals from the Federal Energy Regulatory Commission and the termination of the waiting period
under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended.
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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><U>SIGNATURES</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused
this report to be signed on its behalf by the undersigned hereunto duly authorized.
</DIV>


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    <TD valign="top">&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="center">                                             NiSource Inc.
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="center">(Registrant)&nbsp;</TD>
    <TD>&nbsp;</TD>
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    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
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    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left"> Date:  April 21, 2008&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="center">/s/ Jeffrey W. Grossman
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="center">Jeffrey W. Grossman&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="center">Vice President and Controller&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
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