SEMCO ENERGY Begins Trading on New York Stock Exchange

PORT HURON, Mich., Jan. 6 /PRNewswire/ -- SEMCO ENERGY, Inc. (NYSE: SEN) announced that it began trading today on the New York Stock Exchange (NYSE) under the stock symbol "SEN." William L. Johnson, Company Chairman and Chief Executive Officer, made the announcement. Johnson, along with Sebastian Coppola, Senior Vice President and Chief Financial Officer, and Edric R. Mason, Treasurer and Director of Investor Relations, were on the floor of the NYSE when trading began.

Johnson stated, "We are happy to be here to witness the beginning of our relationship with the New York Stock Exchange. Trading on the NYSE will enhance our financial market visibility as we continue with our expansion and diversification strategy. The NYSE listing will complement our evolution into a diversified energy and infrastructure company with a national focus."

"We are delighted to welcome SEMCO ENERGY, a growing, diversified energy company, to the family of NYSE-listed enterprises," said NYSE President and Chief Operating Officer William R. Johnston.

Before switching to the NYSE, SEMCO ENERGY traded on the Nasdaq exchange under the symbol SMGS.

SEMCO ENERGY, Inc. owns and operates natural gas distribution systems serving a combined total of more than 350,000 customers in Michigan and Alaska. Its subsidiary, 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.

The listing requirements of the New York Stock Exchange require that SEMCO ENERGY disclose that additional information is available upon which the New York Stock Exchange relied to list the Company, and is included in SEMCO ENERGY's listing application. Such information is available to the public upon request.
CONTACT: Analysts: Edric R. Mason, Jr., 810-989-4104, fax, 810-989-4098, or Media: Francis R. Lieder, Jr., 810-987-2200, ext. 4186, fax, 810-989-4098, both of SEMCO ENERGY, Inc.

"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.