X0202 4 2005-06-02 0 0000856716 WESTERN GAS RESOURCES INC WGR 0001228359 SAUVAGE WARD 1099 18TH STREET, SUITE 1200 DENVER CO 80202 1 0 0 0 Common Stock 2005-06-02 4 J 0 317 34.45 A 3122891 I See footnote Common Stock 2005-06-03 4 J 0 3053 29.25 A 3125944 I See footnote The shares were received as a liquidating distribution from an exchange fund limited partnership. Reporting Person has a possible Section 16 liability for these transactions and has entered into an agreement with Western Gas Resources, Inc. for the full payment of such liabilities. 1,245,679 shares held by Sauvage Gas Company, which is owned by a number of family members and trusts held by family members of Reporting Person and 1,880,265 shares held by Sauvage Gas Service Corportion, which is indirectly held by family members of Reporting Person. /s/ John C. Walter, as Attorney-in-Fact for Ward Sauvage 2005-08-17