<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2011-04-01</periodOfReport>

    <dateOfOriginalSubmission>2011-04-01</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001301063</issuerCik>
        <issuerName>Alpha Natural Resources, Inc.</issuerName>
        <issuerTradingSymbol>ANR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001316840</rptOwnerCik>
            <rptOwnerName>Neely Eddie W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE ALPHA PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>P. O. BOX 2345</rptOwnerStreet2>
            <rptOwnerCity>ABINGDON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>24212</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>EVP &amp; Chief Risk Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Non-qualified Stock Options (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>12.73</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-11-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3142</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3142</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options vest as follows:  6,270 shares became exercisable on November 10, 2007, 6,284 shares became exercisable on November 10, 2008, and the remaining 6,284 shares will become exercisable on November 10, 2009.</footnote>
        <footnote id="F2">On April 1, 2011, the reporting person mistakenly filed a Form 4 that reported the exercise of 2,500 options that did not in fact occur.   As of April 1, 2011, the reporting person held 3,142 options.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Edythe C. Katz, Attorney-in-Fact</signatureName>
        <signatureDate>2011-04-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
