UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15 (d) OF THE
                       SECURITIES AND EXCHANGE ACT OF 1934

                        Commission file number 001-16189

        Date of Report (Date of earliest event reported): October 6, 2003

                                  NISOURCE INC.

             (Exact Name of Registrant as Specified in its Charter)

           Delaware                      001-16189                35-2108964
           --------                      ---------                ----------
(State or other jurisdiction of         (Commission           (I.R.S. Employer
incorporation or organization)          File Number)         Identification No.)

               801 EAST 86TH AVENUE, MERRILLVILLE, INDIANA       46410
              (Address of principal executive offices)         (Zip Code)

        Registrant's telephone number, including area code (877) 647-5990




                                  NiSource Inc.
                           Current Report of Form 8-K

         Item 5. Other Events

This Current Report on Form 8-K is to reflect the presentation of Columbia
Energy Resources, Inc. and the steel-industry-related, inside-the-fence project
entities of Primary Energy, Inc. as discontinued operations. The changes affect
the financial statements and related notes including Schedules I and II,
management's discussion and analysis, and the selected financial data as
reported in Quarterly Report on Form 10-Q for the quarter year ended March 31,
2003. Exhibit 99.1 contains information identical to the corresponding sections
of the registrants' Quarterly Report on Form 10-Q for the quarter ended March
31, 2003, except that all such information has been updated to the extent
required to reflect Columbia Energy Resources, Inc. and the
steel-industry-related, inside-the-fence project entities of Primary Energy,
Inc. as discontinued operations. As a result of the Columbia Energy Resources,
Inc. being classified as discontinued operations NiSource no longer reports the
Exploration and Production segment.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

     (a)   Exhibits.



Exhibit Number
               
99.1              Part 1, Items 1 and 2 updated from the NiSource Inc. Quarterly
                  Report on Form 10-Q for the quarter ended March 31, 2003.


                                    SIGNATURE

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.

Dated: October 6, 2003                    Nisource Inc.
                                          By:    /s/ Jeffrey W. Grossman
                                                 -------------------------------
                                          Name:  Jeffrey W. Grossman
                                          Title: Vice President and Controller

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