<SUBMISSION>
<ACCESSION-NUMBER>0001245156-11-000059
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20110516
<FILING-DATE>20110518
<DATE-OF-FILING-DATE-CHANGE>20110518
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Anderson Phillip M
<CIK>0001491365
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-35143
<FILM-NUMBER>11854795
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>19100 RIDGEWOOD PARKWAY
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78259
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>TESORO LOGISTICS LP
<CIK>0001507615
<ASSIGNED-SIC>4610
<IRS-NUMBER>274151603
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>19100 RIDGEWOOD PARKWAY
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78259
<PHONE>210-626-6000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>19100 RIDGEWOOD PARKWAY
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78259
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-05-16</periodOfReport>

    <issuer>
        <issuerCik>0001507615</issuerCik>
        <issuerName>TESORO LOGISTICS LP</issuerName>
        <issuerTradingSymbol>TLLP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001491365</rptOwnerCik>
            <rptOwnerName>Anderson Phillip M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>19100 RIDGEWOOD PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78259</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-05-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Commun Units</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3700</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Award of units and DERs will vest ratably over a three year period beginning with the date of grant.  Distribution equivalent amounts on any particular unit will be accumulated and paid when the unit vests.  Unpaid distribution equivalents will not bear interest.</footnote>
        <footnote id="F2">Upon vesting or a termination event following a Change in Control of TLGP, a termination of the employee by the Company or TLGP for reasons other than cause or the death or diability of the employee.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Charles S. Parrish, Attorney-in-Fact for Phillip M. Anderson</signatureName>
        <signatureDate>2011-05-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
