Gamba/Ivinga is a large, mature field onshore Gabon. Gamba has been onstream since 1967 and is the oldest onshore field in the country. A slow natural decline and continuous drilling has extended the field's producing life. The Totou satellite field was shut-in in 1996 and brought back onstream by Shell Gabon in 2000. Gamba/Ivinga crude is blended with production from other onshore fields and exported as the Rabi Blend via Shell's Gamba terminal.