EXHIBIT 1
JOINT FILING AGREEMENT
We, the signatories of the statement on Schedule 13D filed with respect to the
Subordinated Units of Pacific Energy Partners, L.P., to which this Agreement is
attached, hereby agree this 31st day of March, 2005, that such statement is, and
any amendments thereto filed by any of us will be, filed on behalf of each of us
pursuant to and in accordance with the provisions of Rule 13d-1(k) of the
Securities Exchange Act of 1934.
FIRST RESERVE GP X, INC.
By: /s/ Xxxxxx X. Xxxxxxx
----------------------------------------
Name: Xxxxxx X. Xxxxxxx
Title: Managing Director
FIRST RESERVE GP X, L.P.
By: First Reserve GP X, Inc., its general
partner
By: /s/ Xxxxxx X. Xxxxxxx
----------------------------------------
Name: Xxxxxx X. Xxxxxxx
Title: Managing Director
FIRST RESERVE PACIFIC HOLDINGS AIV, L.P.
By: First Reserve GP X, L.P., its general
partner
By: First Reserve GP X, Inc., its general
partner
By: /s/ Xxxxxx X. Xxxxxxx
----------------------------------------
Name: Xxxxxx X. Xxxxxxx
Title: Managing Director
