EXHIBIT 23(d) CONSENT OF WRIGHT AND COMPANY, INC. EXHIBIT 23(d) - -------------------------------------------------------------------------------- CONSENT OF INDEPENDENT PETROLEUM CONSULTANTS We consent to the references to our company in the Prospectus portion of the Registration Statement, including under the heading "Experts." By: /s/ D. Randall Wright ---------------------- D. Randall Wright President Wright & Company, Inc. Brentwood, Tennessee September 7, 2004