CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS Enercorp, Inc. West Bloomfield, Michigan We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement, of our report dated September 22, 1998, relating to the consolidated financial statements of Enercorp, Inc. and its subsidiaries appearing in Enercorp's Annual Report on Form 10-KSB for its fiscal year ended June 30, 1999 and to the reference to our Firm under the heading "Experts" in the Prospectus. HIRSCH SILBERSTEIN & SUBELSKY, P.C. Farmington Hills, Michigan May 8, 2000