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1
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 25, 2005
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
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DOMESTIC DEEPWATER SEMISUBMERSIBLES (6)
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Ocean Quest 3,500' Victory Class GOM Contracted Noble one well
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Ocean Star 5,500' Victory Class GOM Contracted Kerr-McGee 220 day extension
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Ocean America 5,500' Ocean Odyssey GOM Contracted Mariner one well
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Ocean Valiant 5,500' Ocean Odyssey GOM Contracted Kerr-McGee one well
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Ocean Victory 5,500' Victory Class GOM Contracted Shell 100 day term
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Ocean Confidence 7,500' DP Aker H-3.2 Modified GOM Contracted BP five-year term
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DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (4)
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Ocean Voyager 2,000' Victory Class GOM Contracted Walter Oil & Gas extension well
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Ocean Concord 2,200' F&G SS-2000 GOM Contracted Kerr-McGee one well
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Ocean Lexington 2,200' F&G SS-2000 GOM Contracted Walter Oil & Gas three wells
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Ocean Saratoga 2,200' F&G SS-2000 GOM Contracted LLOG three wells
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DAYRATE
RIG NAME (000S) START DATE EST. END DATE FUTURE CONTRACTS AND OTHER INFORMATION
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DOMESTIC DEEPWATER SEMISUBMERSIBLES (6)
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Ocean Quest high 110's late April late May 2005 120 day term plus option with Noble in mid 120's
beginning late May and ending late Sept. 2005.
Available; actively marketing.
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Ocean Star mid 70's early Dec. 2004 mid July 2005 90 day term extension plus option with Kerr-McGee in
low 140's beginning mid July 2005 and ending early
Oct. 2005; followed by 12 month extension with
Kerr-McGee in mid 170's beginning early Oct. 2005 and
ending early Oct. 2006. Available; actively marketing.
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Ocean America mid 110's late April late May 2005 First of three assignment wells with Pioneer in low
150's beginning late May and ending mid Aug.; followed
by second well with Mariner in low 130's beginning mid
Aug. and ending mid Sept.; followed by second and
third of three well extension with Mariner/Pioneer in
low 150's beginning mid Sept. and ending early Nov.
2005. Available; actively marketing.
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Ocean Valiant mid 80's late Jan. 2005 mid May 2005 One well with Kerr-McGee in high 90's beginning mid
May and ending mid July, followed by one well with
Kerr-McGee in low 130's beginning mid July and ending
mid Sept. 2005; followed by 180 day term extension
with Kerr-McGee in low 150's beginning mid Sept. 2005
and ending mid Mar. 2006. Available; actively
marketing.
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Ocean Victory low 130's mid Feb. 2005 late May 2005 Available; actively marketing.
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Ocean Confidence mid 170's early Jan. 2001 early Jan. 2006 Available; actively marketing.
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DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (4)
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Ocean Voyager mid 110's mid April 2005 early May 2005 One well with ATP in mid 90's beginning early May 2005
and ending late June; followed by one well with
Kerr-McGee in low 110's beginning late June and ending
mid Aug.; followed by one well with Amerada Hess in
low 110's beginning mid Aug. and ending late Sept.;
followed by LOI for one well in low 110's beginning
late Sept. and ending mid Nov.; followed by two wells
plus option with Amerada Hess in mid 120's beginning
mid Nov. 2005 and ending mid Feb. 2006. Available;
actively marketing.
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Ocean Concord upper 50's mid April 2005 mid May 2005 One well with Kerr-McGee in mid 70's beginning mid May
and ending mid July 2005; followed by two well
extension plus option with Kerr-McGee in mid 90's
beginning mid July and ending early Oct.; followed by
one well with Amerada Hess in mid 120's beginning
early Oct. and ending mid Dec. 2005. Available;
actively marketing.
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Ocean Lexington mid 50's late Jan. 2005 late May 2005 Rig will go in for approximately 90-day Survey and
maintenance between second and third well, beginning
late May and ending mid Aug. Following survey, two
additional wells with Walter in low 60's beginning mid
Aug. and ending mid Oct.; followed by one well plus
option with Walter in low 80's beginning mid Oct. and
ending mid Nov. 2005. Available; actively marketing.
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Ocean Saratoga mid 60's mid Dec. 2004 late July 2005 Two wells plus option with LLOG in low 110's beginning
late July and ending mid Dec.; followed by six month
extension with LLOG in low 120's beginning mid Dec.
2005 and ending mid June 2006. Available; actively
marketing.
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2
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 25, 2005
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
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DOMESTIC JACKUPS (12)
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Ocean Crusader 200' Mat Cantilever GOM Contracted Walter Oil & Gas two well extension
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Ocean Drake 200' Mat Cantilever GOM Contracted ADTI/CMI one well extension
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Ocean Champion 250' Mat Slot GOM Contracted Hunt two wells
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Ocean Columbia 250' Independent Leg GOM Contracted Kerr-McGee Five wells
Cantilever
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Ocean Spartan 300' Independent Leg GOM Contracted LLOG three wells plus option
Cantilever
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Ocean Spur 300' Independent Leg GOM Contracted Spinnaker one well
Cantilever
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Ocean King 300' Independent Leg GOM Contracted El Paso three wells plus option
Cantilever
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Ocean Nugget 300' Independent Leg GOM Contracted Mariner one well
Cantilever
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300' Independent Leg
Ocean Summit Cantilever GOM Contracted LLOG two wells plus option
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300' Independent Leg
Ocean Warwick Cantilever GOM Contracted Newfield one well
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Ocean Titan 350' Independent Leg GOM Contracted BHP one well plus option
Cantilever
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Ocean Tower 350' Independent Leg GOM Contracted Chevron/Texaco one well plus option
Cantilever
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DAYRATE
RIG NAME (000S) START DATE EST. END DATE FUTURE CONTRACTS AND OTHER INFORMATION
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DOMESTIC JACKUPS (12)
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Ocean Crusader mid 30's late Jan. 2005 early May 2005 Available; actively marketing.
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Ocean Drake low 40's mid April 2005 early May 2005 Three wells plus option with ADTI/Seneca in mid
40's beginning early May and ending early June
2005. Available; actively marketing.
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Ocean Champion low 40's late Jan. 2005 late May 2005 Available; actively marketing.
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Ocean Columbia mid 40's early Jan. 2005 mid June 2005 Available; actively marketing.
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Ocean Spartan high 40's late Feb. 2005 late June 2005 Two well extension plus option with LLOG in high
50's beginning late June and ending late Aug.
2005. Available; actively marketing.
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Ocean Spur mid 40's mid Dec. 2004 early May 2005 One well with Forest in mid 40's beginning early
May and ending mid June 2005. Maintenance/repairs
mid June through mid Aug. 2005. Available;
actively marketing.
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Ocean King mid 50's early Mar. 2005 mid June 2005 LOI for four wells plus option in low 60's
beginning mid July and ending early Dec. 2005.
Available; actively marketing.
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Ocean Nugget low 50's early April 2005 early May 2005 Two wells plus option with Houston Exploration in
low 50's beginning early May and ending mid Aug.
2005. Available; actively marketing.
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Ocean Summit mid 40's late Feb. 2005 early June 2005 One well extension plus option with LLOG in high
50's beginning early June and ending early July
2005. Available; actively marketing.
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Ocean Warwick low 50's mid Mar. 2005 early May 2005 90 day term with Chevron/Texaco in mid 50's
(adjustable rate) beginning early May and ending
early Aug. 2005. Available; actively marketing.
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Ocean Titan mid 50's late Jan. 2005 early June 2005 Two wells with Walter in mid 70's beginning early
June and ending early Aug; followed by one well
extension with Walter in mid 70's beginning early
Aug. and ending late Aug. 2005. Available;
actively marketing.
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Ocean Tower mid 50's early Jan. 2005 early July 2005 One well extension plus option with
Chevron/Texaco in high 60's beginning early July
and ending mid Sept. 2005. Available; actively
marketing.
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3
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 25, 2005
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
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INTERNATIONAL SEMISUBMERSIBLES (17)
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MEXICO
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Ocean Ambassador 1,100' Bethlehem SS-2000 GOM Contracted PEMEX four year term work
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Ocean Whittington 1,500' Aker H-3 GOM Contracted PEMEX four year term work
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Ocean Worker 3,500' F&G 9500 Enhanced GOM Contracted PEMEX four year term work
Pacesetter
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Ocean Yorktown 2,850' F&G SS-2000 GOM Contracted PEMEX four year term work
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NORTH SEA
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Ocean Nomad 1,200' Aker H-3 North Sea Contracted Talisman one year
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Ocean Guardian 1,500' Earl & Wright Sedco 711 North Sea Contracted Shell one year
Series
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Ocean Princess 1,500' Aker H-3 North Sea Contracted Talisman one year extension
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Ocean Vanguard 1,500' Bingo 3000 North Sea Shipyard DODI -
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AUSTRALASIA
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Ocean Bounty 1,500' Victory Class Australia Contracted ENI one well plus option
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Ocean Patriot 1,500' Bingo 3000 Australia Contracted Woodside two wells
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Ocean Epoch 1,640' Korkut Malaysia Contracted Murphy six wells plus option
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Ocean General 1,640' Korkut Viet Nam Contracted KNOC two wells
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Ocean Baroness 7,000' Victory Class Indonesia Contracted Unocal 180 day extension
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Ocean Rover 7,000' Victory Class Malaysia Contracted Murphy six option wells
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DAYRATE
RIG NAME (000S) START DATE EST. END DATE FUTURE CONTRACTS AND OTHER INFORMATION
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INTERNATIONAL SEMISUBMERSIBLES (17)
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MEXICO
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Ocean Ambassador mid 50's late July 2003 mid Dec. 2007 Available.
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Ocean Whittington low 60's late July 2003 early Oct. 2006 Available.
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Ocean Worker high 60's mid Aug. 2003 late July 2007 Available.
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Ocean Yorktown mid 40's late Oct. 2003 mid July 2007 Available.
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NORTH SEA
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Ocean Nomad low 80's early Jan. 2005 early Jan. 2006 Available; actively marketing.
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Ocean Guardian low 80's late Mar. 2005 late Mar. 2006 Available; actively marketing.
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Ocean Princess low 80's early Jan. 2005 late Dec. 2005 Available; actively marketing.
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Ocean Vanguard - - - In yard for additional storm damage repairs. Est.
completion late April 2005. One year plus option
program in Norway with Statoil in low 140's beginning
in late April 2005 and ending in late April 2006.
Available; actively marketing.
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AUSTRALASIA
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Ocean Bounty mid 80's early April 2005 mid May 2005 One well plus option with ConocoPhillips in mid 80's
beginning mid May and ending early Aug.; followed by
one well with Coogee Res. in mid 80's beginning early
Aug. and ending early Sept.; followed by LOI for two
wells plus option in low 90's beginning early Sept. and
ending mid Nov.; followed by LOI for one well plus
option in mid 90's beginning mid Nov. and ending mid
Dec.; followed by LOI for four wells plus option in
high 90's beginning mid Dec. 2005 and ending mid June
2006. Available; actively marketing.
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Ocean Patriot high 70's mid Mar. 2005 late April 2005 Two wells plus option with Santos in high 70's
beginning late April and ending early July; followed by
LOI for one well plus three options in high 70's
beginning early July and ending mid Aug.; followed by
one well with Santos in high 70's beginning mid Aug.
and ending mid Sept. 2005; followed by one well with
Bass Straits in high 70s beginning mid Sept. and ending
late Sept. 2005 Available; actively marketing.
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Ocean Epoch mid 70's late April 2005 mid Jan. 2006 Available; actively marketing.
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Ocean General mid 50's early April 2005 early June 2005 LOI for four wells plus option in mid 70's in Malaysia
beginning early June and ending late Oct.; followed by
LOI for one well plus option in high 70's in Viet Nam
beginning late Oct. and ending early Dec. 2005.
Available; actively marketing.
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Ocean Baroness mid 130's late Dec. 2004 early May 2005 Lump sum mobe to GOM beginning early May and ending
early Oct., including prep; followed by LOI with
Amerada Hess for one-year term plus mobe in low 200's
in GOM beginning early Oct. 2005 and ending early Oct.
2006. Available; actively marketing.
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Ocean Rover low 120's late Jan. 2005 mid July 2005 LOI with Murphy for 950 day extension at average
dayrate in mid 170's beginning mid July 2005 and ending
mid Feb. 2008. Available; actively marketing.
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4
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 25, 2005
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
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BRAZIL
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Ocean Yatzy 3,300' DP DYVI Super Yatzy Brazil Contracted Petrobras 700 day extension
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Ocean Winner 3,500' Aker H-3 Brazil Contracted Petrobras 700 day extension
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Ocean Alliance 5,000' Alliance Class Brazil Contracted Petrobras one year extension
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INTERNATIONAL DRILLSHIPS (1)
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Ocean Clipper 7,500' DP Fluor/Mitsubishi Brazil Contracted Petrobras 700 day extension
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INTERNATIONAL JACKUPS (2)
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Ocean Sovereign 250' Independent Leg Mobing LOI DODI -
Cantilever
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Ocean Heritage 300' Independent Leg Shipyard LOI DODI -
Cantilever
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UPGRADE (1)
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Ocean Endeavor 2,000' Victory Class Under tow Upgrading DODI -
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COLD STACKED (1)
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Ocean New Era 1,500' Korkut GOM Cold Stacked DODI -
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ASSET HELD FOR SALE (1)
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Ocean Liberator 600' Aker H-3 S. Africa Cold Stacked DODI -
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PURCHASE PENDING--RESERVED FOR UPGRADE (1)**
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Garden Banks 2,200' Victory Class GOM Out of Service - -
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DAYRATE
RIG NAME (000S) START DATE EST. END DATE FUTURE CONTRACTS AND OTHER INFORMATION
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BRAZIL
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Ocean Yatzy mid 70's early Nov. 2003 mid Oct. 2005 Available.
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Ocean Winner mid 50's early April 2004 mid Mar. 2006 Available.
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Ocean Alliance high 90's early Sept. 2004 early Sept. 2005 Available.
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INTERNATIONAL DRILLSHIPS (1)
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Ocean Clipper low 100's early Jan. 2003 early Mar. 2006 Available; actively marketing.
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INTERNATIONAL JACKUPS (2)
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Ocean Sovereign - - - LOI for 190 days plus option in high 70's beginning
late April and ending early Nov. 2005. Lump sum
demobe from Bangladesh to Indonesia beginning mid
April and ending late April. Available; actively
marketing.
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Ocean Heritage - - - Shipyard late April until mid May; followed by LOI
in Qatar for two wells plus option in mid 70's
beginning mid May 2005 and ending early Feb. 2006.
Available; actively marketing.
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UPGRADE (1)
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Ocean Endeavor - - - Mobing to Singapore shipyard for upgrade to 10,000
ft. capable 5th Generation rig. Estimated
completion early 2007. Available; actively
marketing.
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COLD STACKED (1)
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Ocean New Era - - - Cold stacked Dec. '02.
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ASSET HELD FOR SALE (1)
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Ocean Liberator - - - Cold stacked Nov. '02.
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PURCHASE PENDING--RESERVED FOR UPGRADE (1)**
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Garden Banks - - - Currently retired from active service as drilling
and production platform.
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NOTES:
* GENERALLY, RIG UTILIZATION RATES APPROACH 95-98% DURING CONTRACTED PERIODS;
HOWEVER, UTILIZATION RATES CAN BE ADVERSELY IMPACTED BY ADDITIONAL DOWNTIME DUE
TO UNSCHEDULED REPAIRS AND MAINTENANCE, WEATHER CONDITIONS AND OTHER FACTORS.
** Diamond Offshore Services Company has entered into a definitive agreement to
purchase the Garden Banks, subject to certain conditions, which is expected to
be consummated in September 2005, and does not currently own the rig.
GOM = Gulf of Mexico