Summary of PLAINS EXPLORATION & PRODUCTION CO

Item 9.01 Financial Statements and Exhibits

(a) Financial Statements of Businesses Acquired

The unaudited Statements of Revenues and Direct Operating Expenses of Certain Oil and Gas Properties of BP Exploration & Production Inc. and BP America Production Company and the Holstein Field Working Interest for the nine months ended September 30, 2012 and 2011, are included as Exhibits 99.1 and 99.2, respectively, hereto.

(b) Pro Forma Financial Information

The unaudited pro forma condensed combined financial statements and accompanying notes of PXP as of and for the nine months ended September 30, 2012 and for the year ended December 31, 2011, are included as Exhibit 99.3 hereto.

(d) Exhibits

Exhibit
Number                                    Description
99.1         Unaudited interim Statements of Revenues and Direct Operating Expenses
             of Certain Oil and Gas Properties of BP Exploration & Production Inc.
             and BP America Production Company for the nine months ended September
             30, 2012 and 2011.

99.2         Unaudited interim Statements of Revenues and Direct Operating Expenses
             of the Holstein Field Working Interest for the nine months ended
             September 30, 2012 and 2011.

99.3         Unaudited pro forma condensed combined financial statements and
             accompanying notes of PXP as of and for the nine months ended
             September 30, 2012 and for the year ended December 31, 2011.