World Fleet of Submersible Drilling Rigs
Most recent update: November 15, 2011.
This sector of the fleet has not changed significantly in several years.
| Operator | Rig Name | Design | Builder | Country of Build | Year Built | Water Depth (ft.) | Drilling Depth (ft.) |
| Atwood Oceanics | Richmond | Pace Sub 70 | Vemar | USA | 1982 | 75 | 20,000 |
| Noble Drilling | Noble Joe Alford | Pace 85G | Vemar | USA | 1982 | 85 | 30,000 |
| Noble Drilling | Noble Lester Pettus | Pace 85G | Vemar | USA | 1982 | 85 | 30,000 |
| Hercules Offshore | Hercules 75 | Pace 85G | Vemar | USA | 1983 | 85 | 25,000 |
| Hercules Offshore | Hercules 77 | Donhaiser Marine | Chicago Bridge | USA | 1983 | 85 | 30,000 |