ATP Oil & Gas Corporation (NASDAQ: ATPG) Chief Financial Officer Al Reese, Jr. will update the investment community on the company’s operations and developments during a presentation on Tuesday, April 17th at IPAA’s Oil & Gas Investment Symposium in New York. Join the live discussion beginning at 3:45 pm EST at www.atpog.com or http://www.investorcalendar.com/CEPage.asp?ID=168044 where the archived replay can also be accessed. The presentation will be posted to www.atpog.com on Monday morning. Forward one-on-one meeting requests to sthornton@atpog.com or contact Mr. Reese directly at the conference.

About ATP Oil & Gas Corporation

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