World Fleet of Submersible Drilling Rigs

(as of August 13, 2008)

Sources: Operators' and Builders' SEC Filings and Web Sites, RigZone.com and others.

Operator Rig Name Design Builder Country Year Built Water Depth (ft.) Drilling Depth (ft.)
Atwood Oceanics Richmond Pace Sub 70 Vemar USA 1982 75 20,000
Noble Drilling Noble Fri Rodli Noble EVA 4000 Chicago Bridge USA 1979 70 25,000
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
Hercules Offshore Hercules 78 Donhaiser Marine Chicago Bridge USA 1983 85 30,000