EXHIBIT 23.12



                                LETTER OF CONSENT


We consent to the reference to our firm name in this Amendment No. 3 to the
Registration Statement on Form S-4 of Devon Energy Corporation and this
Amendment No. 1 to the Registration Statement on Form S-4 of Devon Holdco
Corporation and the reference to our firm name and our reports providing
estimates of a portion of the natural gas, natural gas liquids and conventional
oil reserves of Anderson Exploration Ltd. as of March 31, 2000 and September 30,
2000 herein.


                                                     Yours very truly,

                                                     GILBERT LAUSTSEN JUNG
                                                     ASSOCIATES LTD.

                                                     /s/  Dana B. Laustsen

                                                     Dana B. Laustsen, P. Eng.
                                                     Executive Vice President

Calgary, Alberta

November 28, 2001