Exhibit 99.1

Pacific Energy Partners, L.P. Announces Adjustment to 2003 Net Income

       LONG BEACH, Calif.--(BUSINESS WIRE)--March 10, 2004--Pacific
Energy Partners, L.P. (NYSE:PPX) announced today that it will record
an additional charge of $1.2 million against 2003 net income to
reflect a decision issued by the Federal Energy Regulatory Commission
(FERC) in a shipper rate complaint that had been filed against
Frontier Pipeline Company in early 2001. Pacific Energy Partners owns
22.22% of Frontier.
       The FERC decision awarded reparations to the complainants for
joint tariff shipments from January 1999 to January 2002. All other
aspects of the case were settled in early 2002; therefore, there is no
impact on Frontier's current rates or revenues. Pacific Energy
Partners expects that the decision will be appealed or that rehearing
at the FERC will be sought.
       The FERC decision was issued after the Partnership announced its
2003 financial results on January 27, 2004. At that time, Pacific
Energy Partners announced net income for the twelve months ended
December 31, 2003, of $26.2 million, or $1.15 per basic limited
partner unit. The additional charge of $1.2 million, or $0.05 per
basic limited partner unit, results in net income of $25.0 million, or
$1.10 per basic limited partner unit. This change will be reflected in
Pacific Energy Partners' 2003 Form 10-K to be filed with the
Securities and Exchange Commission by March 15, 2004.
       Pacific Energy Partners, L.P. is a Delaware limited partnership
headquartered in Long Beach, California. Pacific Energy Partners is
engaged principally in the business of gathering, transporting,
storing, and distributing crude oil and other related products in
California and the Rocky Mountain region. Pacific Energy Partners
generates revenue primarily by charging tariff rates for transporting
crude oil on its pipelines and by leasing capacity in its storage
facilities. Pacific Energy Partners also buys, blends and sells crude
oil, activities that are complementary to its pipeline transportation
business.

       This news release may include "forward-looking" statements within
the meaning of Section 27A of the Securities Act of 1933, as amended,
and Section 21E of the Securities Exchange Act of 1934, as amended.
All statements other than statements of historical fact included or
incorporated herein may constitute forward-looking statements.
Although the Partnership believes that the forward-looking statements
are reasonable, it can give no assurance that such expectations will
prove to be correct. The forward-looking statements involve risks and
uncertainties that affect the Partnership's operations and financial
performance. Among the factors that could cause results to differ
materially are those risks discussed in the Partnership's filings with
the Securities and Exchange Commission, including our Annual Report on
Form 10-K for the year ended December 31, 2002, and the Registration
Statement on Form S-3 filed August 1, 2003.

    CONTACT: Pacific Energy Partners, L.P.
             Thomas L. Lambert, 562/728-2871
             fax: 562/728-2881