EXHIBIT 23.3 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this Form S-4 Registration Statement covering the merger of Devon Energy Corporation and Santa Fe Snyder Corporation of our report dated March 19, 1999 included in the PennzEnergy Company Form 10-K for the year ended December 31, 1998, and to all references to our Firm included in this Registration Statement. ARTHUR ANDERSEN LLP Houston, Texas June 21, 2000