PXP Prices $600M of Senior Notes

Plains Exploration & Production Co. has sold $600 million of 7 3/4% Senior Notes that will mature June 15, 2015. The notes were sold to the public at par. Net proceeds will be used to repay borrowings under PXP's revolving credit facility.

Interest is payable June 15th and December 15th of each year. The first interest payment will be made on December 15, 2007, and will consist of interest from closing to that date. The offering is expected to close on June 19, 2007.

The offering was underwritten by J.P. Morgan Securities Inc. and Lehman Brothers Inc., who acted as joint book-running managers for the offering. The offering was made only by means of a prospectus and related prospectus supplement, copies of which may be obtained from J. P. Morgan Securities Inc., 270 Park Ave., 8th Floor, Attention: Syndicate Desk, New York, NY 10017, 212-834-4533; or Lehman Brothers Inc., Attention: Prospectus Department, 745 7th Avenue, New York, NY 10019, 888-603-5847.

PXP is an independent oil and gas company primarily engaged in the upstream activities of acquiring, developing, exploiting, exploring and producing oil and gas in its core areas of operation: onshore and offshore California, Colorado and the Gulf Coast region of the United States. PXP is headquartered in Houston, Texas.