ST. MARY LAND & EXPLORATION COMPANY REGISTRATION STATEMENT ON FORM S-3 EXHIBIT 23.3 We consent to any reference to us as "Experts" in the Registration Statement on Form S-3 of St. Mary Land & Exploration Company, and any amendments thereto pursuant to Rule 462 of the Securities Act of 1933. Very truly yours, /s/ Ryder Scott Company Ryder Scott Company Petroleum Engineers Denver, Colorado January 27, 1997