EXHIBIT 23.11

           CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS

     We hereby consent to the incorporation by reference in the joint proxy
statement/prospectus constituting part of the St. Mary Land & Exploration
Company registration statement on Form S-4 (Registration No. 333-85537) of data
derived from our reserve report dated April 9, 1999 relating to the oil and gas
reserves of King Ranch Energy, Inc. at December 31, 1998. We also consent to the
reference to our firm under the caption "Experts" and elsewhere in such joint
proxy statement/prospectus.

                                        NETHERLAND, SEWELL & ASSOCIATES, INC.

                                        By: /S/ FREDERIC D. SEWELL
                                            ------------------------------------
                                            Frederic D. Sewell
                                            President

Dallas, Texas
October 1, 1999