-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 jOeAlXJI+XuyVOWgT+bBrg==

<SEC-DOCUMENT>0001029023-09-000002.txt : 20090330
<SEC-HEADER>0001029023-09-000002.hdr.sgml : 20090330
<ACCEPTANCE-DATETIME>20090330124025
ACCESSION NUMBER:		0001029023-09-000002
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081021
FILED AS OF DATE:		20090330
DATE AS OF CHANGE:		20090330

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNTROLEUM CORP
		CENTRAL INDEX KEY:			0001029023
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				731565725
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5416 S. YALE
		STREET 2:		SUITE 400
		CITY:			TULSA
		STATE:			OK
		ZIP:			74135
		BUSINESS PHONE:		9185927900

	MAIL ADDRESS:	
		STREET 1:		5416 S. YALE
		STREET 2:		SUITE 400
		CITY:			TULSA
		STATE:			OK
		ZIP:			74135

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SLH CORP
		DATE OF NAME CHANGE:	19961213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TYSON DONALD J
		CENTRAL INDEX KEY:			0001019033

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21911
		FILM NUMBER:		09713039

	MAIL ADDRESS:	
		STREET 1:		P O BOX 2200
		CITY:			SPRINGDALE
		STATE:			AR
		ZIP:			72765

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TYSON FOODS INC
		CENTRAL INDEX KEY:			0000100493
		STANDARD INDUSTRIAL CLASSIFICATION:	POULTRY SLAUGHTERING AND PROCESSING [2015]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0929

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21911
		FILM NUMBER:		09713040

	BUSINESS ADDRESS:	
		STREET 1:		2200 DON TYSON PARKWAY
		CITY:			SPRINGDALE
		STATE:			AR
		ZIP:			72762-6999
		BUSINESS PHONE:		479-290-4000

	MAIL ADDRESS:	
		STREET 1:		P O BOX 2020
		STREET 2:		P O BOX 2020
		CITY:			SPRINGDALE
		STATE:			AR
		ZIP:			72765-2020

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TYSON LIMITED PARTNERSHIP
		CENTRAL INDEX KEY:			0001088710
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21911
		FILM NUMBER:		09713041

	BUSINESS ADDRESS:	
		STREET 1:		2210 OAKLAWN DRIVE
		CITY:			SPRINGDALE
		STATE:			AR
		ZIP:			72765-2020
		BUSINESS PHONE:		5017564000

	MAIL ADDRESS:	
		STREET 1:		2210 OAKLAWN DRIVE
		CITY:			SPRINGDALE
		STATE:			AR
		ZIP:			72765-2020
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tys6.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-10-21</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001029023</issuerCik>
        <issuerName>SYNTROLEUM CORP</issuerName>
        <issuerTradingSymbol>SYNM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000100493</rptOwnerCik>
            <rptOwnerName>TYSON FOODS INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2200 DON TYSON PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SPRINGDALE</rptOwnerCity>
            <rptOwnerState>AR</rptOwnerState>
            <rptOwnerZipCode>72762</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001088710</rptOwnerCik>
            <rptOwnerName>TYSON LIMITED PARTNERSHIP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2200 DON TYSON PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SPRINGDALE</rptOwnerCity>
            <rptOwnerState>AR</rptOwnerState>
            <rptOwnerZipCode>72762</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001019033</rptOwnerCik>
            <rptOwnerName>TYSON DONALD J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2200 DON TYSON PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SPRINGDALE</rptOwnerCity>
            <rptOwnerState>AR</rptOwnerState>
            <rptOwnerZipCode>72762</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrant Tranche I</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.87</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4250000</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.01</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2008-10-21</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-10-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8000000</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Tyson Foods, Inc.(&quot;Tyson&quot;) and Syntroleum Corporation (&quot;Issuer&quot;) formed Dynamic Fuels LLC, a 50/50 joint venture, that is building a renewable fuels refinery in Geismar, LA.  Upon the formation of the joint venture the parties entered into a Warrant Agreement, dated June 22, 2007.  Under the warrant agreement, Tyson was issued Warrant Tranche I, which  will become exercisable on the first anniversary of the Geismar, LA. plant commencing commercial operations and expires if not exercised before the third anniversary of the initial commercial operation date.</footnote>
        <footnote id="F2">The reported warrants are owned directly by Tyson and may be deemed to be beneficially owned (i) by the Tyson Limited Partnership (&quot;TLP&quot;) which has 69.76% of the voting rights in Tyson and (ii) by Donald J. Tyson who has approximately 54% combined interest as a general and limited partner in the Tyson Limited Partnership and therefore the TLP and Donald J. Tyson have an indirect beneficial ownership of the warrants held by Tyson.  The TLP and Donald J. Tyson disclaim any beneficial ownership in the Warrants.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: by: R. Read Hudson, Vice President, Assoc. General Counsel and Secretary</signatureName>
        <signatureDate>2009-03-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: /s/Harry C.Erwin III, General Partner, on behalf of Tyson Limited Partnership</signatureName>
        <signatureDate>2009-03-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Tyson, Donald J.</signatureName>
        <signatureDate>2009-03-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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