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

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0001354457</cik>
        <entityName>NASDAQ Stock Market LLC</entityName>
    </exchange>

    <issuer>
        <cik>0001123647</cik>
        <entityName>ATP OIL &amp; GAS CORP</entityName>
        <fileNumber>001-32647</fileNumber>
        <address>
            <street1>4600 Post Oak Place, Suite 200</street1>
            <street2></street2>
            <city>Houston</city>
            <stateOrCountryCode>TX</stateOrCountryCode>
            <stateOrCountry>TEXAS</stateOrCountry>
            <zipCode>77027</zipCode>
        </address>
        <telephoneNumber>713-622-3311</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>Common stock</descriptionClassSecurity>

    <ruleProvision>17 CFR 240.12d2-2(b)</ruleProvision>

    <signatureData>
        <signatureName>Amy Horton</signatureName>
        <signatureTitle>Associate General Counsel</signatureTitle>
        <signatureDate>2012-09-14</signatureDate>
    </signatureData>
</notificationOfRemoval>
