The Rabbit Island field is located in Louisiana state waters in Iberia and St. Mary Parishes, 95 miles southwest of New Orleans. Energy XXI operates and maintains a 99.9% working interest in the field, which covers approximately 27,000 acres. The field's average daily net production for the year ended June 30, 2009 was 606 BOE/d and net proved reserves for the field were 3.4 million BOE, 90% of which was natural gas. The field was discovered by Texaco in 1939 and is a structurally complex, faulted, shallow piercement salt dome with associated radial faulting. The field has produced more than 1.2 trillion cubic feet equivalent to date.
The Lake Salvador Project is a joint venture area onshore south Louisiana in which Energy XXI has a 50% working interest. The project has in excess of 1,000 square miles of merged and reprocessed 3-D seismic data that is helping the company identify both shallow and deep prospects that were overlooked by previous seismic coverage. Since entering into the agreement, the company has spent approximately $50 million on seismic, land and drilling activity and achieved an overall success rate of 75%, including 70% on 10 exploration wells and 100% on two development wells. In fiscal 2009, net production averaged 1,300 BOE/d a day. Currently, the joint venture has lease options on 80,000 gross acres within the Lake Salvador Project, with the opportunity to pick up an additional 25,000 gross acres.