1 EXHIBIT 23.5 February 28, 1997 MCN Corporation 500 Griswold Detroit, Michigan 48226 Re: MCN Corporation 1996 Annual Report on Form 10-K Ladies and Gentlemen: The firm of S. A. Holditch & Associates, Inc. consents to the use of its name and the information contained in its report dated December 30, 1996, regarding MCN Corporation oil and gas reserve information as of December 31, 1996, in its 1996 Annual Report on Form 10-K. In addition, S.A. Holditch & Associates, Inc. consents to the incorporation by reference of said material in Registration Statement Nos. 333-02105 and 333-02107 on Form S-8, 333-01521, 333-01523 and 33-57115 on Form S-3 and Post Effective Amendment No. 1 to Registration Statement No. 33-21930-99 on Form S-8 of MCN Corporation. S. A. Holditch & Associates, Inc. has no interest in MCN Corporation or in any affiliated companies or subsidiaries and is not to receive such interest as payment for such reports and has no director, officer, or employee otherwise connected with MCN Corporation. We are not employed by MCN Corporation on a contingent basis. Very truly yours, W. Denton Copeland, P.E. Vice President, S.A. Holditch & Associates, Inc.