ATP CEO to Present at Lehman Brothers CEO Energy/Power Conference

ATP CEO to Present at Lehman Brothers CEO Energy/Power Conference

Lehman Brothers 2007 CEO Energy/Power Conference

T. Paul Bulmahn, Chairman and President of ATP Oil & Gas Corporation (NASDAQ:ATPG) will present a company update at the Lehman Brothers 2007 CEO Energy/Power Conference, to be held September 4-6 in New York City. Mr. Bulmahn will discuss how ATP is expanding its production and immediate capital plans to achieve the production ramp upwards during 2007 with its impact on 2008 and beyond.

The Company’s presentation is scheduled for Tuesday, September 4th at 2:25 p.m. ET (1:25 p.m. CT, 12:25 p.m. MT) and will be broadcast via live and re-play audio webcast at www.atpog.com and at http://cc.talkpoint.com/LEHM002/090407a_jw/default.asp?entity=ATP. The PowerPoint slides will be available at www.atpog.com beginning September 4th. Inquiries about scheduling a one-on-one meeting should be directed to any of the ATP attendees directly at the conference site.

About ATP Oil & Gas

ATP Oil & Gas is an international offshore oil and gas development and production company with operations in the Gulf of Mexico and the North Sea. The company trades publicly as ATPG on the NASDAQ Global Select Market. For more information about ATP Oil & Gas, visit www.atpog.com.

Contacts

ATP Oil & Gas Corporation
Chairman and President
T. Paul Bulmahn, 713-622-3311
or
Chief Financial Officer
Albert L. Reese Jr., 713-622-3311
www.atpog.com