4.10 Ninth Supplemental Indenture, dated March 6, 2009, to Indenture, dated as of March 13,
2007, among Plains Exploration & Production Company, the Subsidiary Guarantors
parties thereto and Wells Fargo Bank, N.A., as Trustee (including form of the 10% Senior
Notes) (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on
Form 8-K filed March 6, 2009, File No. 1-31470).
4.11 Tenth Supplemental Indenture, dated as of September 11, 2009, to Indenture dated as of
March 13, 2007, among Plains Exploration & Production Company, the Subsidiary
Guarantors parties thereto and Wells Fargo Bank, N.A., as Trustee (including form of the
8
5
⁄
8
% Senior Notes) (incorporated by reference to Exhibit 4.1 to the Company’s Current
Report on Form 8-K filed September 11, 2009, File No. 1-31470).
4.12 Eleventh Supplemental Indenture, dated as of March 29, 2010, to Indenture dated as of
March 13, 2007, among Plains Exploration & Production Company, the Subsidiary
Guarantors parties thereto and Wells Fargo Bank, N.A., as Trustee (including form of the
7
5
⁄
8
% Senior Notes) (incorporated by reference to Exhibit 4.1 to the Company’s Current
Report on Form 8-K filed March 29, 2010, File No. 1-31470).
4.13 Twelfth Supplemental Indenture, dated as of March 29, 2011, to the Indenture, dated as
of March 13, 2007, among Plains Exploration & Production Company, the Subsidiary
Guarantors parties thereto and Wells Fargo Bank, N.A., as Trustee (including form of the
6
5
⁄
8
% Senior Notes) (incorporated by reference to Exhibit 4.1 to the Company’s Current
Report on Form 8-K filed March 29, 2011, File No. 1-31470).
4.14 Thirteenth Supplemental Indenture, dated as of November 21, 2011, to the Indenture,
dated as of March 13, 2007, among Plains Exploration & Production Company, the
Subsidiary Guarantors parties thereto and Wells Fargo Bank, N.A., as Trustee (including
form of the 6
3
⁄
4
% Senior Notes) (incorporated by reference to Exhibit 4.1 to the
Company’s Current Report on Form 8-K filed November 21, 2011, File No. 1-31470, or
the November 21, 2011 Form 8-K).
4.15 Amended and Restated Credit Agreement, dated as of August 3, 2010, among Plains
Exploration & Production Company, as borrower, each of the lenders that is a signatory
thereto, and JPMorgan Chase Bank, N.A., as administrative agent (incorporated by
reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed August 5,
2010, File No. 001-31470).
4.16 Consent and Amendment No.1 to Amended and Restated Credit Agreement, dated as of
October 8, 2010, among Plains Exploration & Production Company, as borrower, each of
the lenders that is a signatory thereto, and JPMorgan Chase Bank, N.A., as
administrative agent (incorporated by reference to Exhibit 4.1 to the Company’s Current
Report on Form 8-K filed October 12, 2010, File No. 1-31470).
4.17 Amendment No.2 to Amended and Restated Credit Agreement, dated as of May 4, 2011,
among Plains Exploration & Production Company, as borrower, each of the lenders that
is a signatory thereto, and JPMorgan Chase Bank, N.A., as administrative agent
(incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K
filed May 5, 2011, File No. 1-31470).
4.18 Omnibus Amendment No.3 to Amended and Restated Credit Agreement, dated as of
November 17, 2011, among Plains Exploration & Production Company, the several
banks and other financial institutions signatory thereto and JPMorgan Chase Bank, N.A.,
as administrative agent (incorporated by reference to Exhibit 4.2 to the November 21,
2011 Form 8-K).
87