SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 9, 2004 NISOURCE INC. ------------- (Exact Name of Registrant as Specified in Its Charter) Delaware 001-16189 35-2108964 -------- --------- ---------- (State or Other Jurisdiction (Commission File (IRS Employer of Incorporation) Number) Identification No.) 801 E. 86th Avenue, Merrillville, Indiana 46410 --------------------------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code (877) 647-5990 -------------- ---------------------------------------------------------------------- (Former Name or Former Address, if Changed Since Last Report) Item 5. Other Events and Required FD Disclosure. NiSource Inc. is furnishing this Report on Form 8-K in connection with the filing by its subsidiary, Northern Indiana Public Service Company, with the Indiana Utility Regulatory Commission on July 9, 2004 of testimony relating to NIPSCO's Dean H. Mitchell Generating Station. This testimony will also be published on NiSource's website (www.nisource.com). NiSource does not have, and expressly disclaims, any obligation to release publicly any updates or any changes in NiSource's expectations or any changes in events, conditions or circumstances on which any forward-looking statement is based. Exhibit 99.1 Prepared Direct Testimony of Pierre R. H. "Pete" Landrieu on behalf of Northern Indiana Public Service Company. Exhibit 99.2 Prepared Direct Testimony of Mark T. Maassel on behalf of Northern Indiana Public Service Company. Exhibit 99.3 Prepared Direct Testimony of Arthur E. Smith, Jr. on behalf of Northern Indiana Public Service Company. Exhibit 99.4 Prepared Direct Testimony of Frank A. Venhuizen on behalf of Northern Indiana Public Service Company. Exhibit 99.5 Prepared Direct Testimony of Jerome B. Weeden on behalf of Northern Indiana Public Service Company. SIGNATURE Pursuant to the requirement 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. NISOURCE INC. (Registrant) Dated: July 12, 2004 By: /s/ Gary W. Pottorff -------------------------- Name: Gary W. Pottorff Title: Secretary Index to Exhibits ----------------- Exhibit Number Exhibit Title -------------- ------------- 99.1 Prepared Direct Testimony of Pierre R. H. "Pete" Landrieu on behalf of Northern Indiana Public Service Company. 99.2 Prepared Direct Testimony of Mark T. Maassel on behalf of Northern Indiana Public Service Company. 99.3 Prepared Direct Testimony of Arthur E. Smith, Jr. on behalf of Northern Indiana Public Service Company. 99.4 Prepared Direct Testimony of Frank A. Venhuizen on behalf of Northern Indiana Public Service Company. 99.5 Prepared Direct Testimony of Jerome B. Weeden on behalf of Northern Indiana Public Service Company.