X0201 4 2003-12-09 0 0000856716 WESTERN GAS RESOURCES INC WGR 0001228362 STONEHOCKER WALTER L 1099 18TH STREET, SUITE 1200 DENVER CO 80202 1 0 0 0 Common Stock 2003-12-09 4 G 0 54780 0 D 2352280 I See footnote Reporting Person's spouse gifted 54,780 shares of Western Gas Resources, Inc. to the underlying beneficiaries of a trust for which she acted as Trustee. Following the transaction, Reporting Person held 1,262,575 shares directly and the remainder are held either by the Reporting Person and his spouse as joint tenants or by his spouse. /s/ John C. Walter, as Attorney-in Fact for Walter L. Stonehocker 2003-12-11