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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UtxGTBzx++nrunDhFQCFgGfjtfFcgf5/uLwy6zC/hm62kxFJcmtC6+yqt/RCAHBs
 KIMMSyUM+SuhkLfIHqH+AA==

<SEC-DOCUMENT>0001181431-10-019996.txt : 20100405
<SEC-HEADER>0001181431-10-019996.hdr.sgml : 20100405
<ACCEPTANCE-DATETIME>20100405085633
ACCESSION NUMBER:		0001181431-10-019996
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100401
FILED AS OF DATE:		20100405
DATE AS OF CHANGE:		20100405

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAGELLAN PETROLEUM CORP /DE/
		CENTRAL INDEX KEY:			0000061398
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				060842255
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		10 COLUMBUS BLVD
		STREET 2:		10 FLOOR
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06106
		BUSINESS PHONE:		8602932006

	MAIL ADDRESS:	
		STREET 1:		10 COLUMBUS BLVD
		STREET 2:		10 FLOOR
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06106

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MAGELLAN PETROLEUM CORP PANAMA
		DATE OF NAME CHANGE:	19671130

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PETTIROSSI RONALD
		CENTRAL INDEX KEY:			0001250945

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05507
		FILM NUMBER:		10729457

	MAIL ADDRESS:	
		STREET 1:		22 PRESTIGE PARK CIRCLE
		CITY:			EAST HARTFORD
		STATE:			CT
		ZIP:			06108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd271668.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-04-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000061398</issuerCik>
        <issuerName>MAGELLAN PETROLEUM CORP /DE/</issuerName>
        <issuerTradingSymbol>MPET</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001250945</rptOwnerCik>
            <rptOwnerName>PETTIROSSI RONALD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9024 ENGLEWOOD COURT</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>VERO BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32963</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock (Restricted)</value>
            </securityTitle>
            <transactionDate>
                <value>2010-04-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>12500</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>52000</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-qualified stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.24</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-04-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-04-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>125000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On April 1, 2010, 12,500 restricted shares of the Company's common stock were awarded to the reporting person pursuant to the Company's 1998 Stock Incentive Plan.  The restricted shares vested immediately in full on April 1, 2010.</footnote>
        <footnote id="F2">The fair market value of a share of the Company's common stock on the grant date, April 1, 2010, was $2.24 per share, calculated in accordance with the terms of the Company's 1998 Stock Incentive Plan.</footnote>
        <footnote id="F3">Amount reported does not include beneficial ownership of the shares subject to stock options held by the reporting person which are reported in Table II.</footnote>
        <footnote id="F4">On April 1, 2010, the reporting person was awarded 25,000 non-qualified stock options pursuant to the Company's 1998 Stock Incentive Plan.  The stock options have an exercise price of $2.24 per share and will expire on April 1, 2020.  The stock options are also expressly conditioned upon the receipt of shareholder approval of the replenishment and amendment of the Company's 1998 Stock Incentive Plan, which shareholder approval will be sought later in 2010.</footnote>
        <footnote id="F5">The awarded stock options vest as follows: (1) one-third of the award (8,333 shares) will vest on April 1, 2011, (2) one-third of the award (8,333 shares) will vest on April 1, 2012, and (3) one-third of the award (8,334 shares) will vest on April 1, 2013.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Ronald Pettirossi, by Edward B. Whittemore, attorney-in-fact</signatureName>
        <signatureDate>2010-04-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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