EXHIBIT 1
AGREEMENT
Pursuant to Rule 13d-1(k) promulgated under the Securities Exchange Act of
1934, as amended, the undersigned agree that the Amendment No. 1 to Schedule 13D
to which this Agreement is attached as Exhibit 1 is filed on behalf of each of
us. This Agreement may be executed in two or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same agreement.
February 5, 2003 OCCIDENTAL PETROLEUM CORPORATION
By: /s/ XXXXXXX X. XXXXXX
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Name: Xxxxxxx X. Xxxxxx
Title: Chief Financial Officer and Executive
Vice President - Corporate Development
OCCIDENTAL C.O.B. PARTNERS
by OXY USA Inc., its managing partner
By: /s/ XXXXXXX X. XXXXXX
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Name: Xxxxxxx X. Xxxxxx
Title: Executive Vice President
PLACID OIL COMPANY
By: /s/ XXXXXXX X. XXXXXX
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Name: Xxxxxxx X. Xxxxxx
Title: Executive Vice President
OXY USA INC.
By: /s/ XXXXXXX X. XXXXXX
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Name: Xxxxxxx X. Xxxxxx
Title: Executive Vice President
Page 1 of 2 Pages
OCCIDENTAL OIL AND GAS HOLDING CORPORATION
By: /s/ XXXXXXX X. XXXXXX
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Name: Xxxxxxx X. Xxxxxx
Title: Executive Vice President
OCCIDENTAL PETROLEUM INVESTMENT CO.
By: /s/ J. R. XXXXXX
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Name: J. R. Xxxxxx
Title: Vice President and Treasurer
Page 2 of 2 Pages
