-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 O0jp0Z37ywfAP8u8rKQWqg0gfLtQOebObcZ2cDRxKBjRs6syjcoEAOJk3Fr+0FiI
 ssI6KVadH+PlqyHWhAdHvA==

<SEC-DOCUMENT>0001497092-10-000003.txt : 20100721
<SEC-HEADER>0001497092-10-000003.hdr.sgml : 20100721
<ACCEPTANCE-DATETIME>20100721114633
ACCESSION NUMBER:		0001497092-10-000003
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100721
DATE AS OF CHANGE:		20100721
EFFECTIVENESS DATE:		20100721

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Reef Oil & Gas 2010-A Income Fund, L.P.
		CENTRAL INDEX KEY:			0001497092
		IRS NUMBER:				273028429
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-145270
		FILM NUMBER:		10961853

	BUSINESS ADDRESS:	
		STREET 1:		1901 N. CENTRAL EXPRESSWAY
		STREET 2:		SUITE 300
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
		BUSINESS PHONE:		9724376792

	MAIL ADDRESS:	
		STREET 1:		1901 N. CENTRAL EXPRESSWAY
		STREET 2:		SUITE 300
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0704</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001497092</cik>
        <entityName>Reef Oil &amp; Gas 2010-A Income Fund, L.P.</entityName>
        <issuerAddress>
            <street1>1901 N. CENTRAL EXPRESSWAY</street1>
            <street2>SUITE 300</street2>
            <city>RICHARDSON</city>
            <stateOrCountry>TX</stateOrCountry>
            <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
            <zipCode>75080</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>9724376792</issuerPhoneNumber>
        <jurisdictionOfInc>TEXAS</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2010</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <middleName>Joseph</middleName>
                <lastName>Mauceli</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1901 N. Central Expy</street1>
                <street2>Suite 300</street2>
                <city>Richardson</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75080</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Manager of the General Partner of the General Partner</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Oil and Gas</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>limited partnership interests</descriptionOfOtherType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>100000</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Reef Securities, Inc.</recipientName>
                <recipientCRDNumber>31951</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>1901 N. Central Expy.</street1>
                    <street2>Suite 400</street2>
                    <city>Richardson</city>
                    <stateOrCountry>TX</stateOrCountry>
                    <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                    <zipCode>75080</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>30000000</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>30000000</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>3150000</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Reef Oil &amp; Gas 2010-A Income Fund, L.P.</issuerName>
                <signatureName>Michael J. Mauceli</signatureName>
                <nameOfSigner>Michael J. Mauceli</nameOfSigner>
                <signatureTitle>Manage of the General Partner of the General Partner</signatureTitle>
                <signatureDate>2010-07-21</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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