-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001358582-06-000246.txt : 20061117
<SEC-HEADER>0001358582-06-000246.hdr.sgml : 20061117
<ACCEPTANCE-DATETIME>20061117172321
ACCESSION NUMBER:		0001358582-06-000246
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060817
FILED AS OF DATE:		20061117
DATE AS OF CHANGE:		20061117

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PACIFIC ENERGY PARTNERS LP
		CENTRAL INDEX KEY:			0001168397
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				680490580

	MAIL ADDRESS:	
		STREET 1:		5900 CHERRY AVE
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90805 4405

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lehman Brothers Merchant Banking Associates III LP
		CENTRAL INDEX KEY:			0001360826
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227748

	BUSINESS ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-526-7000

	MAIL ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lehman Brothers Merchant Banking Associates III LLC
		CENTRAL INDEX KEY:			0001360827
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227749

	BUSINESS ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-526-7000

	MAIL ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lehman Brothers Private Equity Advisors LLC
		CENTRAL INDEX KEY:			0001360828
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227750

	BUSINESS ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-526-7000

	MAIL ADDRESS:	
		STREET 1:		745 7TH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LB I GROUP INC
		CENTRAL INDEX KEY:			0001045004

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227751

	BUSINESS ADDRESS:	
		STREET 1:		3 WORLD FINANCIAL CENTER
		STREET 2:		200 VASEY ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10285

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEHMAN BROTHERS INC//
		CENTRAL INDEX KEY:			0000728586
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227752

	BUSINESS ADDRESS:	
		STREET 1:		LEHMAN BROTHERS INC.
		STREET 2:		3 WORLD FINANCIAL CENTER
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10285
		BUSINESS PHONE:		2125267000

	MAIL ADDRESS:	
		STREET 1:		LEHMAN BROTHERS INC.
		STREET 2:		3 WORLD FINANCIAL CENTER
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10285

	FORMER NAME:	
		FORMER CONFORMED NAME:	SHEARSON LEHMAN BROTHERS INC
		DATE OF NAME CHANGE:	19920703

	FORMER NAME:	
		FORMER CONFORMED NAME:	SHEARSON LEHMAN HUTTON INC /DE/
		DATE OF NAME CHANGE:	19900828

	FORMER NAME:	
		FORMER CONFORMED NAME:	SHEARSON LEHMAN BROTHERS INC /DE/
		DATE OF NAME CHANGE:	19880323

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEHMAN BROTHERS HOLDINGS INC
		CENTRAL INDEX KEY:			0000806085
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31345
		FILM NUMBER:		061227753

	BUSINESS ADDRESS:	
		STREET 1:		LEHMAN BROTHERS
		STREET 2:		745 SEVENTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		2125267000

	MAIL ADDRESS:	
		STREET 1:		LEHMAN BROTHERS
		STREET 2:		745 SEVENTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER NAME:	
		FORMER CONFORMED NAME:	SHEARSON LEHMAN HUTTON HOLDINGS INC
		DATE OF NAME CHANGE:	19901017
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-08-17</periodOfReport>

    <issuer>
        <issuerCik>0001168397</issuerCik>
        <issuerName>PACIFIC ENERGY PARTNERS LP</issuerName>
        <issuerTradingSymbol>PPX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000806085</rptOwnerCik>
            <rptOwnerName>LEHMAN BROTHERS HOLDINGS INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000728586</rptOwnerCik>
            <rptOwnerName>LEHMAN BROTHERS INC//</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001045004</rptOwnerCik>
            <rptOwnerName>LB I GROUP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001360828</rptOwnerCik>
            <rptOwnerName>Lehman Brothers Private Equity Advisors LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001360827</rptOwnerCik>
            <rptOwnerName>Lehman Brothers Merchant Banking Associates III LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001360826</rptOwnerCik>
            <rptOwnerName>Lehman Brothers Merchant Banking Associates III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>745 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remark (1).</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2006-08-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1544136</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3088273</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LB Pacific, LP</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Subordinated Units Representing Limited Partner Interests</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-08-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1544136</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Units Representing Limited Partner Interests</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1544136</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LB Pacific, LP</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The numbers of Common Units and Subordinated Units shown as converted is based on applying the proportionate interest of LB I Group Inc. in LB Pacific, LP, directly and indirectly through LB Pacific GP, LLC, to the respective numbers of Common Units and Subordinated Units held by LP Pacific, LP.</footnote>
        <footnote id="F2">Each of Lehman Brothers Inc. and LB I Group Inc. may be deemed to beneficially own 98,499 of these Common Units; Lehman Brothers Merchant Banking Associates III L.P. and Lehman Brothers Merchant Banking Associates III LLC each may be deemed to beneficially own 1,228,605 of these Common Units; and Lehman Brothers Private Equity Advisers LLC may be deemed to beneficially own 217,032 of these Common Units, each of which is based on the indirect proportionate interest of such reporting person in such Common Units by virtue of its direct and indirect equity interest in LB Pacific, LP.  Lehman Brothers Holdings Inc. may be deemed to have beneficial ownership of the same securities through its proportionate interest in LB Pacific, LP held by investment funds managed by direct and indirect subsidiaries of Lehman Brothers Holdings Inc., as to which it disclaims beneficial ownership except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F3">The securities of the Issuer reported herein are held by LB Pacific LP. See Remark (1).</footnote>
        <footnote id="F4">1-for-1</footnote>
        <footnote id="F5">These Subordinated Units are convertible into Common Units of the Issuer immediately after the distribution of available cash to partners in respect of any quarter ending on or after June 30, 2006, assuming certain financial tests in the Issuer's partnership agreement have been satisfied.</footnote>
        <footnote id="F6">None.</footnote>
    </footnotes>

    <remarks>(1) - This report is filed jointly by Lehman Brothers Holdings Inc., Lehman Brothers Inc., LB I Group Inc., Lehman Brothers Merchant Banking Associates III LP, its general partner, Lehman Brothers Merchant Banking Associates III LLC, and Lehman Brothers Private Equity Advisers L.L.C. The reporting persons may be deemed to be directors of the Issuer by virtue of LB Pacific LP's ownership of 100% of the equity interests in the general partner of the Issuer, but such status is not acknowledged. Lehman Brothers Holdings Inc. owns: (i) 100% of Lehman Brothers Inc., which owns 100% of LB I Group Inc., which owns, directly or indirectly, approximately 2.5% of each of LB Pacific GP, LLC and LB Pacific, LP. and is the manager of an investment fund that owns approximately 1.2% of each of LB Pacific GP, LLC and LB Pacific, LP; (ii) 100% of Lehman Brothers Merchant Banking Associates III LLC, which owns 100% of Lehman Brothers Merchant Banking Associates III LP, which is the manager of several funds that ow
n collectively approximately 47.0% of each of LB Pacific GP, LLC and LB Pacific, L.P.; and (iii) 100% of Lehman Brothers Private Equity Advisers L.L.C., which is the manager of a fund that owns approximately 8.3% of each of LB Pacific GP, LLC and LB Pacific, L.P.  LB I Group Inc. is reporting on its own behalf and in its capacity as the general partner of the fund.  Each of Lehman Brothers Merchant Banking Associates III L.P. and Lehman Brothers Private Equity Advisers L.L.C. is reporting in its capacity as manager of its funds. LB Pacific GP, LLC owns a 0.1% general partner interest in LB Pacific LP. LB Pacific LP indirectly owns all of the general partner interest in the Issuer and directly all of the subordinated units representing limited partner interests in the Issuer. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein except to the extent of its pecuniary interest therein.</remarks>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of Lehman Brothers Holdings, Inc.</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of Lehman Brothers Inc.</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of LB I Group Inc.</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of Lehman Brothers Private Equity Advisers LLC</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of Lehman Brothers Merchant Banking Associates III LLC, general partner of Lehman Brothers Merchant Banking Associates III L.P.</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Ashvin Rao, Authorized Signatory of Lehman Brothers Merchant Banking Associates III LLC</signatureName>
        <signatureDate>2006-11-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
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