AR-6 High-Specification Floaters the Following Table Provides Certain
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High-Specification Floaters The following table provides certain information regarding our 47 High-Specification Floaters as of February 10, 2011: Year Water Drilling entered depth depth service/ capacity capacity Name Type upgraded (a) (in feet) (in feet) Location Ultra-Deepwater Floaters (26) Discoverer Clear Leader (b) (c) (d) HSD 2009 12,000 40,000 U.S. Gulf Discoverer Americas (b) (c) (d) HSD 2009 12,000 40,000 Egypt Discoverer Inspiration (b) (c) (d) HSD 2010 12,000 40,000 U.S. Gulf Petrobras 10000 (b) (c) (d) HSD 2009 12,000 37,500 Brazil Dhirubhai Deepwater KG1 (b) (d) (e) HSD 2009 12,000 35,000 India Dhirubhai Deepwater KG2 (b) (d) (e) HSD 2010 12,000 35,000 India Discoverer India (b) (c) (d) HSD 2010 10,000 40,000 India Discoverer Deep Seas (b) (c) (d) HSD 2001 10,000 35,000 U.S. Gulf Discoverer Enterprise (b) (c) (d) HSD 1999 10,000 35,000 U.S. Gulf Discoverer Spirit (b) (c) (d) HSD 2000 10,000 35,000 U.S. Gulf GSF C.R. Luigs (b) HSD 2000 10,000 35,000 U.S. Gulf GSF Jack Ryan (b) HSD 2000 10,000 35,000 Nigeria Deepwater Discovery (b) HSD 2000 10,000 30,000 Brazil Deepwater Frontier (b) HSD 1999 10,000 30,000 Timor-Leste Deepwater Millennium (b) HSD 1999 10,000 30,000 Ghana Deepwater Pathfinder (b) HSD 1998 10,000 30,000 U.S. Gulf Deepwater Expedition (b) HSD 1999 8,500 30,000 Malaysia Cajun Express (b) (f) HSS 2001 8,500 35,000 Brazil Deepwater Nautilus (g) HSS 2000 8,000 30,000 U.S. Gulf GSF Explorer (b) HSD 1972/1998 7,800 30,000 Indonesia Discoverer Luanda (b) (c) (d) (h) HSD 2010 7,500 40,000 Angola GSF Development Driller I (b) (c) HSS 2005 7,500 37,500 U.S. Gulf GSF Development Driller II (b) (c) HSS 2005 7,500 37,500 U.S. Gulf Development Driller III (b) (c) (d) HSS 2009 7,500 37,500 U.S. Gulf Sedco Energy (b) (f) HSS 2001 7,500 35,000 Nigeria Sedco Express (b) (f) HSS 2001 7,500 35,000 Israel Deepwater Floaters (16) Deepwater Navigator (b) HSD 1971/2000 7,200 25,000 Brazil Discoverer 534 (b) HSD 1975/1991 7,000 25,000 Idle Discoverer Seven Seas (b) HSD 1976/1997 7,000 25,000 India Transocean Marianas (g) HSS 1979/1998 7,000 25,000 Nigeria Sedco 702 (b) HSS 1973/2007 6,500 25,000 Nigeria Sedco 706 (b) HSS 1976/2008 6,500 25,000 Brazil Sedco 707 (b) HSS 1976/1997 6,500 25,000 Brazil GSF Celtic Sea (g) HSS 1982/1998 5,750 25,000 Angola Jack Bates (g) HSS 1986/1997 5,400 30,000 Australia M.G. Hulme, Jr. (g) HSS 1983/1996 5,000 25,000 Idle Sedco 709 (b) HSS 1977/1999 5,000 25,000 Stacked Transocean Richardson (g) HSS 1988 5,000 25,000 Angola Jim Cunningham (g) HSS 1982/1995 4,600 25,000 Stacked Sedco 710 (b) HSS 1983/2001 4,500 25,000 Brazil Sovereign Explorer (g) HSS 1984 4,500 25,000 Stacked Transocean Rather (g) HSS 1988 4,500 25,000 Angola Harsh Environment Floaters (5) (g) Henry Goodrich HSS 1985/2007 5,000 30,000 Canada Transocean Leader HSS 1987/1997 4,500 25,000 Norwegian N. Sea Paul B. Loyd, Jr. HSS 1990 2,000 25,000 U.K. N. Sea Transocean Arctic HSS 1986 1,650 25,000 Norwegian N. Sea Polar Pioneer HSS 1985 1,500 25,000 Norwegian N. Sea ______________________________ “HSD” means high-specification drillship. “HSS” means high-specification semisubmersible. (a) Dates shown are the original service date and the date of the most recent upgrade, if any. (b) Dynamically positioned. (c) Dual-activity. (d) Enhanced Enterprise-class or Enterprise-class rig. (e) Owned through our 50 percent interest in Transocean Pacific Drilling Inc. and pledged as collateral for debt of the joint venture company. (f) Express-class rig. (g) Moored floaters. (h) Owned through our 65 percent interest in Angola Deepwater Drilling Company Limited and pledged as collateral for the debt of the joint venture company. AR-6 .