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 Date of Report: March 23, 1999 SEMCO Energy, Inc. (Exact name of registrant as specified in its charter) Michigan 0-8503 38-2144267 (State or other (Commission (I.R.S. Employer jurisdiction of File Number) Identification No.) incorporation) 405 Water Street, Port Huron, Michigan 48060 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code 810-987-2200 Item 5. Other Events. On March 15, 1999, the Company reached agreement for the sale of its natural gas marketing subsidiary, SEMCO Energy Services, Inc., to CoEnergy Trading Company, a subsidiary of MCN Energy Group, Inc. See exhibit hereto. Item 7.(c) Exhibits. 99 Press Release issued March 22, 1999. 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 thereunto duly authorized. SEMCO Energy, Inc. (Registrant) Dated: March 23, 1999 By: /s/William L. Johnson William L. Johnson Chairman, President and C.E.O. EXHIBIT INDEX Form 8-K March 23, 1999 Filed -------------------- Exhibit By No. Description Herewith Reference - -------- ----------- -------- --------- 99 Press Release dated March 22, 1999. x