SEMCO ENERGY Declares Quarterly Common Stock Cash Dividend

PORT HURON, Mich., June 15 /PRNewswire/ -- The Board of Directors of SEMCO ENERGY, Inc. (NYSE: SEN) today declared a quarterly cash dividend of $.21 per share on the outstanding Common Stock of the Corporation.

Dividend No. 92 is payable on the 15th day of August 2000 to shareholders of record at the close of business on August 4, 2000.

SEMCO ENERGY, Inc. is a diversified energy and infrastructure services company that distributes natural gas to more than 350,000 customers in Michigan and Alaska combined. The Company has two subsidiaries. SEMCO ENERGY VENTURES owns and operates businesses involved in gas engineering and quality assurance services, pipeline construction services, propane distribution, intrastate pipelines and natural gas storage in various regions of the United States. Aretech Information Services, Inc. is a southeastern Michigan-based information technology company specializing in outsourcing to the mid-range computer market.
Web site: http: //
CONTACT: Francis R. Lieder of SEMCO ENERGY, Inc., 810-987-2200, ext. 4186, fax, 810-989-4098

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding SEMCO Energy's business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.