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                       SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C.


                                   FORM U5S/A

                                  ANNUAL REPORT

                      For the Year Ended December 31, 2003


        Filed pursuant to the Public Utility Holding Company Act of 1935


                                  NISOURCE INC.

                              COLUMBIA ENERGY GROUP
                      (Name of registered holding company)

                                801 E 86th Avenue
                           Merrillville, Indiana 46410


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This Amendment No. 1 to NiSource Inc. Form U5S Annual Report for the year ended
December 31, 2003, is being filed to update Item 10 to include the 2003 Tax
Allocation that was not previously included in NiSource Inc.'s Form U5S filed on
April 26, 2004.


                                Table of Contents

Item 10....Financial Statements and Exhibits...............................    3

     Exhibits:

     Tax Allocation for 2003...............................................    3

Signature..................................................................    4




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ITEM 10     FINANCIAL STATEMENTS AND EXHIBITS

EXHIBIT E.  TAX ALLOCATION FOR 2003

Confidential treatment requested.




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SIGNATURES

Each undersigned system company has duly caused this annual report to be signed
on its behalf by the undersigned thereunto duly authorized pursuant to the
requirements of the Public Utility Holding Company Act of 1935. The signature of
each undersigned company shall be deemed to relate only to matters having
reference to such company or its subsidiaries.





                                                      NISOURCE INC.
                                           -----------------------------------
                                                      (Registrant)


Dated:    October 1, 2004              By:     /s/ Jeffrey W. Grossman
        -------------------                -----------------------------------
                                                   Jeffrey W. Grossman
                                              Vice President and Controller
                                             (Principal Accounting Officer)




                                                  COLUMBIA ENERGY GROUP
                                           -----------------------------------
                                                      (Registrant)



Dated:    October 1, 2004              By:     /s/ Jeffrey W. Grossman
        -------------------                -----------------------------------
                                                   Jeffrey W. Grossman
                                                     Vice President


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