ATP Reaches 2.0 Bcf of Natural Gas Production at South Marsh Island

ATP Oil & Gas Corporation announces that production at its South Marsh Island 189/190 project has exceeded 2.0 billion cubic feet (Bcf) or approximately 1.7 Bcf net to the company's interest. Production commenced March 18, 2002 and has remained at approximately 18 million cubic feet (MMcf) of natural gas per day or approximately 15 MMcf per day net to the company's interest. ATP has a 100% working interest in the property and is the operator.