ATP Wins Three Blocks in GoM Lease Sale 192

ATP Oil & Gas was the apparent high bidder on three out of four blocks at the August 18, 2004 OCS Western Gulf of Mexico Offshore Lease Sale Number 192 held in New Orleans by the Minerals Management Service (MMS). ATP will own a 100% working interest and serve as operator for each property if ATP's high bids are approved by the MMS. The blocks are located in approximately 27 to 1,400 feet of water.

"These properties will strengthen our existing base of Gulf of Mexico properties. One property is located in close proximity to ATP infrastructure which will reduce the development costs of that property," said Gerald W. Schlief, ATP's Senior Vice President. "We continue to operate over 98% of all of our properties and 100% of all of our future projects to be developed."