<SUBMISSION>
<ACCESSION-NUMBER>0001111711-08-000121
<TYPE>3
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20080513
<FILING-DATE>20080515
<DATE-OF-FILING-DATE-CHANGE>20080515
<ISSUER>
<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>
<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>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>ABDOO RICHARD A
<CIK>0001017659
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>3
<ACT>34
<FILE-NUMBER>001-16189
<FILM-NUMBER>08838965
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>C/O SUNDSTRAND CORP
<STREET2>4949 HARRISON AVENUE
<CITY>ROCKFORD
<STATE>IL
<ZIP>61125-7003
<PHONE>8152266000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>PO BOX 7003
<CITY>ROCKFORD
<STATE>IL
<ZIP>61125-7003
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-05-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001111711</issuerCik>
        <issuerName>NISOURCE INC/DE</issuerName>
        <issuerTradingSymbol>NI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001017659</rptOwnerCik>
            <rptOwnerName>ABDOO RICHARD A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>801 E 86TH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MERRILLVILLE</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46410-6272</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>Gary W. Pottorff, Power of Attorney for Richard A. Abdoo</signatureName>
        <signatureDate>2008-05-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>powerofattorney.txt
<DESCRIPTION>POWER OF ATTORNEY LETTER
<TEXT>
POWER OF ATTORNEY
WITH RESPECT TO FORMS 3, 4 and 5 AND FORM 144
The undersigned hereby constitutes and appoints each of Gary W. Pottorff and
Jeffrey W. Grossman, signing singly, as the undersigned's true and lawful
attorneys-in-fact to:
(1)execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of NiSource Inc., a Delaware corporation (the
"Corporation"), Forms 3, 4, and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder and Form 144 in
accordance with Rule 144 under the Securities Act of 1933;
(2)do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, 5 or
144 and timely file such Form with the United States Securities and Exchange
Commission, either manually or through the use of EDGAR, the Electronic
Data Gathering, Analysis, and Retrieval system, and with any stock exchange
or similar authority; and
(3)take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such attorney-in-
fact may approve in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as the undersigned
might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact,
or such attorney-in-fact's substitute or substitutes, shall lawfully do or
cause to be done by virtue of this Power of Attorney and the rights and
powers herein granted.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Corporation assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934 or Rule 144 under the Securities Act of 1933.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, 5 and 144 with
respect to the undersigned's holdings of and transactions in securities
issued by the Corporation, unless earlier revoked by the undersigned in a
signed writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 6th day of May, 2008.

/s/ Richard A. Abdoo
Signature
</TEXT>
</DOCUMENT>
</SUBMISSION>
