ATP Receives Deepwater Gulf of Mexico Drilling Permit

HOUSTON--()--ATP Oil & Gas Corporation (NASDAQ: ATPG) today announced that it has received a permit to resume drilling the Mississippi Canyon (“MC”) Block 941 #4 well in the deepwater Gulf of Mexico.

“This permit for the ATP Titan drilling and production platform is the first for a stationary deepwater facility since deepwater drilling was allowed to resume on February 28, 2011. The previous two permits to drill oil and gas wells approved by BOEMRE in 2011, both of them in the last 18 days, are for wells drilled by Mobile Offshore Drilling Units (MODU),” stated T. Paul Bulmahn, ATP’s Chairman and CEO. “We are ready and eager to return to work. ATP has always drilled safely and environmentally soundly. We are looking forward to delivering on our objectives to generate near-term production growth from these developments.”

The MC 941 #4 well at ATP’s Telemark Hub in 4,000 feet of water was drilled to approximately 12,000 feet and cased during 2009. Operations to finalize drilling and completion will begin within the next 24 hours. ATP operates the deepwater Telemark Hub with a 100% working interest and owns 100% of the subsidiary that owns the ATP Titan and associated pipelines and infrastructure.

About ATP Oil & Gas Corporation

ATP Oil & Gas is an international offshore oil and gas development and production company focused in the Gulf of Mexico, Mediterranean Sea and 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.

Forward-looking Statements

Certain statements included in this news release are “forward-looking statements” under the Private Securities Litigation Reform Act of 1995. ATP cautions that assumptions, expectations, projections, intentions, or beliefs about future events may, and often do, vary from actual results and the differences can be material. Some of the key factors which could cause actual results to vary from those ATP expects include changes in natural gas and oil prices, the timing of planned capital expenditures, availability of acquisitions, uncertainties in estimating proved reserves and forecasting production results, operational factors affecting the commencement or maintenance of producing wells, the condition of the capital markets generally, as well as the company’s ability to access them, and uncertainties regarding environmental regulations or litigation and other legal or regulatory developments affecting ATP’s business. More information about the risks and uncertainties relating to ATP's forward-looking statements is found in the company’s SEC filings.

Contacts

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

Release Summary

ATP Receives Deepwater Gulf of Mexico Drilling Permit

Contacts

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