Statistics
| Year | Seismic | Gravity | Magnetic | Wells |
| 1975 | 4782 km 2D | 4782 km | 4782 km | 3 exploratory |
| 1976 | 2829 km 2D | 2829 km | 2829 km | 2 exploratory |
| 1981 | 3078 km 2D | 3078 km | 3078 km | 2 exploratory |
| 1982 | 517 km 2D | 517 km | 517 km | |
| 1984 | 980 km 2D | 980 km | 980 km | |
| 2001 | 1100 km 2D | |||
| 2005 | 4500 km 2D | 4500 km | 4500 km | |
| 2009 | 742 km 2D | 742 km | 742 km |