UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15 (d) OF THE

~~THE~~ SECURITIES EXCHANGE ACT OF 1934

DATE OF EARLIEST EVENT REPORTED: ~~March~~April 1523, 2013

ATP OIL & GAS CORPORATION

(Exact name of registrant as specified in its charter)

Commission file number: 001-32647

Texas

76-0362774

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification No.)

4600 Post Oak Place, Suite 100 Houston, Texas		77027
(Address of principal executive offices)		(Zip Code)

4600 Post Oak Place, Suite 100

Houston, Texas 77027

(Address of principal executive offices)

(Zip Code)

(713) 622-3311

(Registrant’s telephone number, including area code)

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01.

Other Events.

On April 23, 2013, ATP Oil & Gas Corporation (~~the~~“ATP”) received notification of a Suspension of Operations (“~~Company~~SOO”) ~~announced~~and ~~today,~~a ~~first~~Suspension ~~production~~of atProduction ~~its~~(“SOP”) ~~Clipper~~from ~~development~~the ~~located~~Bureau inof ~~Green~~Safety and Environmental Enforcement (“BSEE”), with respect to Lease OCS-G 14016, Mississippi Canyon (GCMC) ~~300~~Block in711, also known as “Gomez.” BSEE issued the ~~deepwater~~SOO ~~Gulf~~and SOP to enforce an order of ~~Mexico.~~the ~~The~~Bureau ~~Company~~of Ocean Energy Management (“BOEM”) dated ~~encountered~~December 20, ~~oil~~2012, and ~~gas~~amended ~~pay~~January 18, ~~sands~~2013 at(the ~~two~~“Order”), ~~Clipper~~requiring ~~wells,~~ATP to provide certain supplemental bonding. As a result of the GCSOO ~~300~~and #4SOP, production and ~~the~~any GCother ~~300~~leaseholding #2operations ~~ST#1,~~on inGomez ~~2011.~~will ~~Today’s~~be ~~production~~suspended beginning ~~announcement~~April 30, is2013 ~~for~~and ~~first~~lasting ~~oil~~until atBSEE ~~the~~notifies GCATP ~~300~~that #4ATP ~~well.~~has ~~Production~~addressed ~~from~~in ~~the~~a GCmanner ~~300~~acceptable #2to ~~ST#1~~BOEM isall ~~expected~~obligations in the ~~upcoming months~~Order. ~~Both~~ATP ~~wells~~estimates ~~tie~~that inthe toproduction impact of the ~~Murphy~~shut-in ~~Oil~~will ~~operated~~be ~~Front~~approximately ~~Runner~~3,200 ~~production~~Bbl/d ~~facility~~gross (approximately 90% oil). ~~The~~ATP ~~Company~~is ~~operates~~currently ~~Clipper~~working with royalty and ~~presently~~interest ~~owns~~holders and infrastructure owners of Gomez to develop a ~~100%~~plan ~~working~~that ~~interest~~would enable BSEE to allow ATP to continue production. At this time, ATP has received no indication from BSEE or BOEM regarding the shut-in of any of its other properties.

OnThe ~~August 17,~~foregoing ~~2012,~~is ~~the Company filed~~ a ~~voluntary~~summary ~~petition~~of ~~for~~the ~~reorganization~~shut-in ~~under~~notification received ~~Chapter~~by 11ATP ofand ~~the~~is ~~Bankruptcy~~qualified ~~Code~~by inreference to the ~~United~~full ~~States~~text ~~Bankruptcy~~of ~~Court for~~ the ~~Southern~~notification, ~~District~~a copy of ~~Texas. Information~~which ~~with~~is ~~respect~~attached to ~~the~~this ~~Chapter~~Current 11Report ~~proceeding is available~~ on ~~ATP’s~~Form ~~website~~8-K atas ~~www~~Exhibit 99.~~atpog.com~~1 orand atis ~~www.kccllc.net/atpog~~incorporated ~~and~~herein by ~~calling (866) 967-1787~~reference.

~~Certain~~As ~~statements~~previously inreported, ~~this~~ATP ~~Current~~filed ~~Report~~a onvoluntary ~~Form~~petition ~~8-K~~for ~~regarding~~reorganization ~~oil~~under ~~and~~Chapter ~~gas~~11 ~~production are “forward-looking statements” as defined by the Securities Litigation Reform Act~~ of ~~1995. These forward-looking statements are not guarantees of future performance and are subject to risks and uncertainties that could cause actual results to differ materially from~~ the ~~results~~Bankruptcy ~~contemplated~~Code byin the ~~forward-looking~~United ~~statements. The forward-looking~~States ~~statements~~Bankruptcy inCourt ~~this~~for ~~Current~~the ~~Report~~Southern ~~are~~District ~~made as~~ of ~~the~~Texas. ~~date~~Information ofwith ~~this~~respect ~~Current~~to ~~Report, and~~ the ~~Company~~Chapter ~~does~~11 ~~not~~proceeding ~~undertake~~is ~~any~~available ~~obligation~~on toATP’s ~~update~~website ~~the~~at ~~forward-looking~~www.atpog.com ~~statements~~or asat awww.kccllc.net/atpog ~~result~~and ofby ~~new~~calling ~~information, future events or otherwise~~(866) 967-1787.

Certain statements in this Current Report on Form 8-K are “forward-looking statements” as defined by the Securities Litigation Reform Act of 1995. These forward-looking statements are not guarantees of future performance and are subject to risks and uncertainties that could cause actual results to differ materially from the results contemplated by the forward-looking statements. The forward-looking statements in this Current Report are made as of the date of this Current Report, and ATP does not undertake any obligation to update the forward-looking statements as a result of new information, future events or otherwise.

Item 9.01.

Financial Statements and Exhibits.

(d)

Exhibits


Exhibit		Exhibit Description

99.1		Notice of Shut-In from the Bureau of Safety and Environmental Enforcement of the United States Department of the Interior, dated April 23, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned and thereunto duly authorized.

	ATP Oil & Gas Corporation
Date: March 15, 2013	By:	/s/ Albert L. Reese Jr.
Date: April 26, 2013	By:	/s/ Albert L. Reese Jr.
		Albert L. Reese Jr. Chief Financial Officer

Exhibit Index


Exhibit		Exhibit Description

99.1		Notice of Shut-In from the Bureau of Safety and Environmental Enforcement of the United States Department of the Interior, dated April 23, 2013.

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