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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 H+QK5pDXiaCRTLZwTFCYBFqE1xpnBRk5pd4kS89V0vJAx8qWetIiV0hFikdjhTdi
 bldNLYITiYd2o/RUrQVeeg==

<SEC-DOCUMENT>0001140361-10-048816.txt : 20101208
<SEC-HEADER>0001140361-10-048816.hdr.sgml : 20101208
<ACCEPTANCE-DATETIME>20101208162620
ACCESSION NUMBER:		0001140361-10-048816
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20101203
FILED AS OF DATE:		20101208
DATE AS OF CHANGE:		20101208

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brooks Hughree Fennon
		CENTRAL INDEX KEY:			0001507146

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15555
		FILM NUMBER:		101240105

	MAIL ADDRESS:	
		STREET 1:		2406 VANDERBILT COURT
		CITY:			ROWLETT
		STATE:			TX
		ZIP:			75088

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENGASCO INC
		CENTRAL INDEX KEY:			0001001614
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				870267438
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10215 TECHNOLOGY DRIVE
		STREET 2:		SUITE 301
		CITY:			KNOXVILLE
		STATE:			TN
		ZIP:			37932
		BUSINESS PHONE:		865-675-1554

	MAIL ADDRESS:	
		STREET 1:		10215 TECHNOLOGY DRIVE
		STREET 2:		SUITE 301
		CITY:			KNOXVILLE
		STATE:			TN
		ZIP:			37932
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2010-12-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001001614</issuerCik>
        <issuerName>TENGASCO INC</issuerName>
        <issuerTradingSymbol>TGC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001507146</rptOwnerCik>
            <rptOwnerName>Brooks Hughree Fennon</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2406 VANDERBILT COURT</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROWLETT</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75088</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>s/Hughree F. Brooks</signatureName>
        <signatureDate>2010-12-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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