December 21, 2004

The Michigan Public Service Commission (MPSC) today approved a settlement agreement that allows Michigan Consolidated Gas Company and its pipeline and gathering affiliates to convert their business operations from a thousand cubic feet (Mcf) basis to a million British thermal unit basis, effective May 1, 2005.

The companies involved are: Michigan Consolidated Gas Company, Michcon Gathering Company, DTE Thunder Bay Processing, L.L.C., Westside Pipeline Company, Saginaw Bay Pipeline Company, Michcon Lateral Company and Saginaw Bay Lateral Company.

Mich Con and the above mentioned affiliates on April 13 requested the change to be consistent with the business operations with which they deal on interstate natural gas pipeline systems and with other major natural gas local distribution companies in Michigan.

In approving the settlement agreement, the Commission noted it is reasonable and in the public interest.

The MPSC is an agency within the Department of Labor & Economic Growth.

Case No. U-14106

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