EXHIBIT. 23.05

                   CONSENT OF H. J. GRUY AND ASSOCIATES, INC.


    We hereby consent to use of the name H. J. Gruy and Associates, Inc. and of
references to H. J. Gruy and Associates, Inc. and to the inclusion of and
references to our reports, or information contained therein, dated February 4,
1998 (two reports), January 29, 1999, February 10, 1999, February 11, 1999,
January 31, 2000, and February 24, 2000, prepared for Questar Exploration and
Production Company in the Registration Statement of Questar Market
Resources, Inc. on Form S-3 for the filing dated January 10, 2001



                                                   
                                                      H. J. GRUY AND ASSOCIATES, INC.
                                                      Texas Registration Number F-000637

                                                      /s/ ROBERT J. NAAS, P. E.
                                                      ------------------------------------------------
                                                      Executive Vice President





Dallas, Texas
January 5, 2001