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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,
 CN96EIURFld4LY9BCiyHKAXRvreTGiOFd/U7XEC0oLW2Y9eO1TBOEruW70IeXAFt
 h94Q/gkUKc9aMZECLOWFIw==

<SEC-DOCUMENT>9999999995-09-001642.txt : 20090611
<SEC-HEADER>9999999995-09-001642.hdr.sgml : 20090611
<ACCEPTANCE-DATETIME>20090611001512
ACCESSION NUMBER:		9999999995-09-001642
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20090610
DATE AS OF CHANGE:		20090611
EFFECTIVENESS DATE:		20090610

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ATP OIL & GAS CORP
		CENTRAL INDEX KEY:			0001123647
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				760362774
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-159614
		FILM NUMBER:		09885898

	BUSINESS ADDRESS:	
		STREET 1:		4600 POST OAK PL
		STREET 2:		STE 200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027
		BUSINESS PHONE:		7136223311

	MAIL ADDRESS:	
		STREET 1:		4600 POST OAK PLACE
		STREET 2:		SUITE 200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027
</SEC-HEADER>
<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2009-06-10</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>15:00:00</finalEffectivenessDispTime>
        <form>S-3</form>
        <filer>
            <cik>0001123647</cik>
            <entityName>ATP OIL &amp; GAS CORP</entityName>
            <fileNumber>333-159614</fileNumber>
        </filer>
    </effectiveData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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