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) March 26, 2004 VECTREN CORPORATION (Exact name of registrant as specified in its charter) Commission Registrant, State of Incorporation, I.R.S Employer File No. Address, and Telephone Number Identification No. 1-15467 Vectren Corporation 35-2086905 (An Indiana Corporation) 20 N.W. Fourth Street, Evansville, Indiana 47708 (812) 491-4000 1-16739 Vectren Utility Holdings, Inc. 35-2104850 (An Indiana Corporation) 20 N.W. Fourth Street, Evansville, Indiana 47708 (812) 491-4000 1-3553 Southern Indiana Gas and Electric Company 35-0672570 (An Indiana Corporation) 20 N.W. Fourth Street, Evansville, Indiana 47708 (812) 491-4000 Former name or address, if changed since last report: N/A Item 9. Regulation FD Disclosure Vectren Corporation (the Company), an energy holding and applied technology company, announced it has reached a definitive agreement with the Indiana Office of Utility Consumer Counselor (OUCC) regarding the proposed changes to the gas distribution base rates and charges for its wholly owned subsidiary, Southern Indiana Gas and Electric Company which does business as Vectren Energy Delivery of Indiana, Inc. - South. The settlement agreement has been filed with the Indiana Utility Regulatory Commission (IURC). A copy of the press release is furnished as Exhibit 99-1 to this Current Report. In connection with the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, the Company is hereby furnishing cautionary statements identifying important factors that could cause actual results of the Company and its subsidiaries, including Vectren Utility Holdings, Inc., Indiana Gas Company, Inc., and Southern Indiana Gas and Electric Company, to differ materially from those projected in forward-looking statements of the Company and its subsidiaries made by, or on behalf of, the Company and its subsidiaries. These cautionary statements are attached as Exhibit 99-2. SIGNATURES 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. VECTREN CORPORATION VECTREN UTILITY HOLDINGS, INC. SOUTHERN INDIANA GAS AND ELECTRIC COMPANY March 29, 2004 By: /s/ M. Susan Hardwick ----------------------------- M. Susan Hardwick Vice President and Controller INDEX TO EXHIBITS The following Exhibits are furnished as part of this Report to the extent described in Item 9: Exhibit Number Description 99-1 Press Release - Vectren South files settlement agreement in natural gas base rate proceeding 99-2 Cautionary Statement for Purposes of the "Safe Harbor" Provisions of the Private Securities Litigation Reform Act of 1995