1. Petitioner is the Republic of Argentina (“Argentina”) acting through the Procuración del Tesoro de la Nación (Office of the Attorney General) whose principal office is located at Posadas 1641, Buenos Aires, C.P. 1112, Republic of Argentina.

2. Respondent BG Group Plc. (“BG”) is a British corporation located at 100 Thames Valley Park Drive, Reading Berkshire, RG6 1PT, in the United Kingdom.

3. Petitioner seeks to vacate or modify that certain award (the “Award”) dated December 24, 2007 rendered pursuant to arbitration (the “Arbitration”) that resulted in a substantial monetary award in favor of BG and against Argentina (a copy of the Award is annexed hereto as Exhibit A).