World Fleet of Submersible Drilling Rigs
Most recent update: October 2, 2012.
This sector of the fleet has not changed significantly in several years but lost one more unit in 2012.
| Operator | Rig Name | Design | Water Depth (ft.) | Drilling Depth (ft.) | Builder | Country | Flag | Class | Delivery | Original Name |
| Noble Drilling | Noble Joe Alford | Pace 85G | 85 | 30,000 | Vemar | USA | USA | AB | Nov-82 | Portal 202 |
| Noble Drilling | Noble Lester Pettus | Pace 85G | 85 | 30,000 | Vemar | USA | USA | AB | Aug-82 | Portal 201 |
| Hercules Offshore | Hercules 75 | Pace 85G | 85 | 25,000 | Vemar | USA | Liberia | AB | Feb-83 | Portal 203 |
| Hercules Offshore | Hercules 77 | Donhaiser | 85 | 30,000 | Chicago Bridge | USA | Liberia | AB | Dec-82 | Dixilyn-Field 77 |