X0202 3/A 2004-05-14 2004-05-18 0 0000891456 PLAINS EXPLORATION & PRODUCTION CO PXP 0001216496 GERRY ROBERT L III 4600 POST OAK PLACE SUITE 309 HOUSTON TX 77027 1 0 0 0 Common Stock 17923 D The direct stock holdings listed in the reproting person's original filing have been decreased by 57 shares due to an error in the number of shares used in calculating the conversion of Nuevo Energy Company shares into Plains Exploration & Production Company shares on May 14, 2004. This reduction also affects the Form 4 filed May 20, 2004. Deborah R. Anderson, attorney-in-fact for Robert L. Gerry, III 2004-09-28