X0202 4 2007-02-15 0000891456 PLAINS EXPLORATION & PRODUCTION CO PXP 0000939485 FLORES JAMES C 700 MILAM SUITE 3100 HOUSTON TX 77002 1 1 0 0 Chairman of the Board Common Stock 2007-02-15 4 A 0 150000 0 A 1286068 D Common Stock 2007-02-18 4 F 0 6437 48.36 D 1279631 D Common Stock 199 I By 401(k) plan Common Stock 1000000 I By Sable Management, L.P. Represents grant of restricted stock units with one-third vesting on each of March 31, 2008, March 31, 2009 and March 31, 2010. The information in this report is based on a plan statement dated as of December 29, 2006. Reporting person is a limited partner and the managing member of a limited liability company which is general partner of Sable Management, L.P. Deborah R. Anderson as Attorney-in-Fact for James C. Flores 2007-02-20