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) February 14, 2000 NISOURCE INC. ---------------------------------------------------------------------- (Exact Name of Registrant as Specified in Its Charter) Indiana 1-9779 35-1719974 ---------------------------------------------------------------------- (State or Other (Commission File Number) (IRS Employer Jurisdiction of Identification No.) Incorporation) 801 E. 86th Avenue, Merrillville, Indiana 46410 ---------------------------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code (219) 853-5200 ---------------- ---------------------------------------------------------------------- (Former Name or Former Address, if Changed Since Last Report) Item 5. Other Events. On February 14, 2000, the Registrant announced that its tender offer for all of the outstanding common stock of Columbia Energy Group is not being extended. A copy of the Registrant's press release dated February 14, 2000 is filed as an exhibit to this report and incorporated herein by reference. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits (c) EXHIBITS. The following exhibit is filed herewith: 99.1 Press release dated February 14, 2000. 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: February 14, 2000 By: /s/ Nina M. Rausch ----------------------------- Name: Nina M. Rausch Title: Secretary