-----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,
 WWhWdOphvwK65HV+HfG0m2EM6WkL5DvXZ0r67KTgMTTgx1s5k9oAi6Egh021h8LJ
 YZlan1wjJp8IpmqGHLWqHA==

<SEC-DOCUMENT>0001181431-10-040571.txt : 20100805
<SEC-HEADER>0001181431-10-040571.hdr.sgml : 20100805
<ACCEPTANCE-DATETIME>20100805170107
ACCESSION NUMBER:		0001181431-10-040571
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100803
FILED AS OF DATE:		20100805
DATE AS OF CHANGE:		20100805

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Purgason Robert S
		CENTRAL INDEX KEY:			0001308543

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34831
		FILM NUMBER:		10995247

	MAIL ADDRESS:	
		STREET 1:		2818 S. VICTOR AVENUE
		CITY:			TULSA
		STATE:			OK
		ZIP:			74114

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Chesapeake Midstream Partners, L.P.
		CENTRAL INDEX KEY:			0001483096
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				800534394
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		777 NW GRAND BOULEVARD
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73118
		BUSINESS PHONE:		(405) 935-1500

	MAIL ADDRESS:	
		STREET 1:		777 NW GRAND BOULEVARD
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73118
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd282683.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-08-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001483096</issuerCik>
        <issuerName>Chesapeake Midstream Partners, L.P.</issuerName>
        <issuerTradingSymbol>CHKM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001308543</rptOwnerCik>
            <rptOwnerName>Purgason Robert S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>777 N. GRAND BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2>ONE GRAND PARK BLDG.</rptOwnerStreet2>
            <rptOwnerCity>OKLAHOMA CITY</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>73118</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2010-08-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>14200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Marc D. Rome</signatureName>
        <signatureDate>2010-08-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----