UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 9, 2004 Date of Report (Date of earliest event reported) NICOR INC. (Exact name of registrant as specified in its charter) Illinois 1-7297 36-2855175 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification Number) 1844 Ferry Road Naperville, Illinois 60563-9600 (Address of principal executive offices) (Zip Code) (630) 305-9500 (Registrant's telephone number, including area code) Page 1 Item 7. Financial Statements and Exhibits - ------- --------------------------------- The following is furnished as an exhibit to this report. Exhibit Number Description - ------- ----------- 99.1 Press release of Nicor Inc. issued August 9, 2004. Item 12. Results of Operations and Financial Condition - -------- --------------------------------------------- The information in this Item is furnished to, but not filed with, the Securities and Exchange Commission solely under Item 12 of Form 8-K, "Results of Operations and Financial Condition." On August 9, 2004, Nicor Inc. issued a press release announcing financial results for the quarter ended June 30, 2004 and providing 2004 earnings guidance. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. Page 2 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. Nicor Inc. Date August 9, 2004 /s/ RICHARD L. HAWLEY --------------- ---------------------------- Richard L. Hawley Executive Vice President and Chief Financial Officer Page 3 Exhibit Index - ------------- Exhibit Number Description of Document ------- ----------------------------------------------------- 99.1 Press release of Nicor Inc. issued August 9, 2004.