.
.
.
EXHIBIT 99.1
1
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF October 4, 2005
<Table>
<Caption>
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC DEEPWATER SEMISUBMERSIBLES (6)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Quest 3,500' Victory Class GOM Contracted Noble term
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Star 5,500' Victory Class GOM Contracted Kerr-McGee 90 day term extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean America 5,500' Ocean Odyssey GOM Contracted Pioneer three wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Valiant 5,500' Ocean Odyssey GOM Contracted Kerr-McGee 180 day extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Victory 5,500' Victory Class GOM Contracted Kerr-McGee one well
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Confidence 7,500' DP Aker H-3.2 Modified GOM Contracted BP five-year term
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (5)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean New Era 1,500' Korkut GOM Reactivating DODI -
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Voyager 2,000' Victory Class GOM Contracted ATP two wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Concord 2,200' F&G SS-2000 GOM Contracted Kerr-McGee one well
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Lexington 2,200' F&G SS-2000 GOM Shipyard DODI -
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Saratoga 2,200' F&G SS-2000 GOM Contracted LLOG three wells
- ------------------------------------------------------------------------------------------------------------------------------------
EST. END
RIG NAME DAYRATE (000S) START DATE DATE FUTURE CONTRACTS AND OTHER INFORMATION
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC DEEPWATER SEMISUBMERSIBLES (6)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Quest mid 120's mid June 2005 mid Oct. Current estimated completion of storm repairs mid Oct. Six-
2005 month term extension plus option in the low 240's beginning in
mid Oct. 2005 and ending in mid April 2006. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Star low 140's mid July 2005 mid Nov. Current estimated completion of storm repairs mid Nov. 12 month
2005 extension with Kerr-McGee in mid 170's beginning after repair
and completion of existing contract and extending for one year.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean America low 150's early May 2005 late Dec. Following assignment wells with Pioneer, second of two
2005 extension wells with Mariner in low 130's beginning late Dec.
2005 and ending mid Feb. 2006; followed by one additional
extension well with Mariner in mid 110's beginning mid Feb. and
ending early April 2006: followed by one year term plus option
with Mariner in low 230's beginning early April 2006 and ending
early April 2007. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Valiant mid 150's mid Sept. 2005 mid Mar. One-year term extension plus option from Kerr-McGee in low
2006 300,000's beginning in mid Mar. 2006 and ending in mid Mar.
2007. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Victory mid 180's late Aug. 2005 mid Oct. One year term with Murphy in low 200's beginning mid Oct. 2005
2005 and ending mid Oct. 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Confidence mid 170's early Jan. 2001 early Jan. Two-year term plus option with BP in low 280's beginning early
2006 Jan. 2006 and ending early Jan. 2008. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (5)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean New Era - - - Est. availability mid Dec. 2005; followed by six-month term
with Walter in low 100's for first 30 days and mid 120's for
remainder of term beginning early Dec. 2005 and ending early
June 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Voyager mid 90's late June 2005 mid Nov. Current estimated completion of storm repairs late Oct. One
2005 well with Amerada Hess in low 110's beginning mid Nov. and
ending early Jan. 2006; followed by LOI for one well in low
110's beginning late early Jan. and ending late Feb. 2006;
followed by two wells plus option with Amerada Hess in mid
120's beginning late Feb. 2006 and ending late May 2006.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Concord mid 70's late Aug. 2005 mid Dec. One assignment well from Kerr-McGee with Woodside in mid 90's
2005 beginning mid Dec. 2005 and ending late Jan. 2006; followed by
one well extension plus option with Kerr-McGee in mid 90's
beginning late Jan. 2006 and ending early Mar.; followed by
90-day term plus option with Tana in low 130's beginning early
Mar. and ending early June 2006; followed by 90-day term
extension plus option in low 170's beginning early June and
ending late Aug 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Lexington - - early Oct. Approximately 120-day Survey and maintenance between second and
2005 third well, beginning late May and ending mid Oct. Following
survey, two additional wells with Walter in low 60's beginning
early Oct. and ending early Dec.; followed by LOI for one well
in mid 170's beginning in early Dec. 2005 and ending in late
Jan. 2006; followed by one well plus option with Walter in low
80's beginning late Jan. and ending late Feb. 2006. Available;
actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Saratoga mid 60's mid Dec. 2004 late Oct. Current estimated completion of storm repairs late Oct.
2005 Two wells plus option with LLOG in low 110's following repair
and completion of existing contract and extending for
approximately five months; followed by six month extension with
LLOG in low 120's. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
2
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF October 4, 2005
<Table>
<Caption>
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC JACKUPS (12)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Crusader 200' Mat Cantilever GOM Contracted Seneca two wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Drake 200' Mat Cantilever GOM Contracted Chevron term contract
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Champion 250' Mat Slot GOM Contracted Hunt two well extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Columbia 250' Independent Leg Cantilever GOM Contracted Newfield 180-day term
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Spartan 300' Independent Leg Cantilever GOM Contracted LLOG three wells plus option
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Spur 300' Independent Leg Cantilever GOM Contracted EOG one well
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean King 300' Independent Leg Cantilever GOM Contracted El Paso one well extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Nugget 300' Independent Leg Cantilever GOM Contracted Houston Expl. two wells plus option
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Summit 300' Independent Leg Cantilever GOM Contracted LLOG one well extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Warwick 300' Independent Leg Cantilever - - - -
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Titan 350' Independent Leg Cantilever GOM Contracted Walter three wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Tower 350' Independent Leg Cantilever GOM Contracted Chevron one well
- ------------------------------------------------------------------------------------------------------------------------------------
EST. END
RIG NAME DAYRATE (000S) START DATE DATE FUTURE CONTRACTS AND OTHER INFORMATION
- ------------------------------------------------------------------------------------------------------------------------------------
DOMESTIC JACKUPS (12)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Crusader high 40's late Aug. 2005 late Oct. LOI for one well plus option in low 50's beginning late Oct.
2005 2005 and ending late Jan. 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Drake low 60's late July 2005 late June Indexed term contract. Available; actively marketing.
2006
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Champion low 50's late Aug. 2005 late Nov. Six-month term with Stone Energy in mid 50's beginning late
2005 Nov. 2005 and ending mid May 2006. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Columbia mid 50's early Aug. 2005 late Jan. Available; actively marketing.
2006
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Spartan high 50's late June 2005 late Sept. Two well extension plus option in mid 80's beginning late Sept.
2005 and ending late Nov. 2005. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Spur mid 60's late Aug. 2005 mid Oct. Available; actively marketing.
2005
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean King mid 50's late June 2005 late Sept. One well with El Paso in mid 60's beginning late Aug. and
2005 ending late Sept.; followed by one well extension in low 60's
beginning late Sept. and ending mid Oct. 2005; followed by one
well with Forest in mid 70's beginning early Nov. and ending
mid Dec.; followed by LOI for one well in mid 80's beginning
mid Dec. and ending late Dec. 2005. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Nugget high 60's early Sept. 2005 late Oct. Available; actively marketing.
2005
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Summit mid 60's late June 2005 mid Oct. One well with Walter in upper 60's beginning mid Oct. and
2005 ending mid Nov. 2005; followed by LOI for one well in mid 80's
beginning mid Nov. and ending late Dec. 2005. Available;
actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Warwick - - - Total Constructive Loss.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Titan mid 70's mid Sept. 2005 mid Jan. Six-month term with Dominion Exploration in high 70's beginning
2006 mid Jan. 2006 and ending mid July 2006. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Tower mid 50's early Aug. 2005 late Sept. 180-day term extension plus option with Chevron (Part I) in
2005 high 60's beginning late Sept. and ending late Dec.; followed
by Part II in high 80's beginning late Dec. 2005 and ending
late Mar. 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
3
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF October 4, 2005
<Table>
<Caption>
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL SEMISUBMERSIBLES (17)
- ------------------------------------------------------------------------------------------------------------------------------------
MEXICO
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Ambassador 1,100' Bethlehem SS-2000 GOM Contracted PEMEX four year term work
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Whittington 1,500' Aker H-3 GOM Contracted PEMEX four year term work
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Worker 3,500' F&G 9500 Enhanced Pacesetter GOM Contracted PEMEX four year term work
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Yorktown 2,850' F&G SS-2000 GOM Contracted PEMEX four year term work
- ------------------------------------------------------------------------------------------------------------------------------------
NORTH SEA
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Nomad 1,200' Aker H-3 North Sea Contracted Talisman one year
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Guardian 1,500' Earl & Wright Sedco 711 North Sea Contracted Shell one year
Series
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Princess 1,500' Aker H-3 North Sea Contracted Talisman one year extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Vanguard 1,500' Bingo 3000 North Sea Contracted Statoil one year term
- ------------------------------------------------------------------------------------------------------------------------------------
AUSTRALASIA
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Bounty 1,500' Victory Class Australia Contracted ConocoPhillips two wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Patriot 1,500' Bingo 3000 Australia Contracted Anzon one well
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Epoch 1,640' Korkut Malaysia Contracted Murphy six wells plus option
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean General 1,640' Korkut Malaysia Contracted CTOC six wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Baroness 7,000' Victory Class Singapore Shipyard DODI -
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Rover 7,000' Victory Class Malaysia Contracted Murphy 950 day extension
- ------------------------------------------------------------------------------------------------------------------------------------
EST. END
RIG NAME DAYRATE (000S) START DATE DATE FUTURE CONTRACTS AND OTHER INFORMATION
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL SEMISUBMERSIBLES (17)
- ------------------------------------------------------------------------------------------------------------------------------------
MEXICO
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Ambassador mid 50's late July 2003 mid Dec. Available.
2007
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Whittington low 60's late July 2003 early Oct. Available.
2006
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Worker high 60's mid Aug. 2003 late July Available.
2007
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Yorktown mid 40's late Oct. 2003 mid July Available.
2007
- ------------------------------------------------------------------------------------------------------------------------------------
NORTH SEA
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Nomad low 80's early Jan. 2005 late Jan. One year extension with Talisman in mid 150's beginning late
2006 Jan. 2006 and ending late Jan. 2007. Available; actively
marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Guardian low 80's late Mar. 2005 late Mar. One-year term extension plus option with Shell in low 160's
2006 beginning late Mar. 2006 and ending late Mar. 2007. (40-day
survey Q3, 2005). Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Princess low 80's early Jan. 2005 late Dec. Two year extension with Talisman plus option in low 150's
2005 beginning in late Dec. 2005 and ending in late Dec. 2007.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Vanguard low 140's late May 2005 early One year plus option program in Norway with Statoil in low
Sept. 2006 140's beginning in late May 2005 and ending in early Sept. 2006
(time period to include one well redrill with ENI in low 140's
beginning late July and ending late Oct. 2005). Available;
actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
AUSTRALASIA
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Bounty mid 80's late June 2005 early Nov. One well with Coogee Res. in mid 80's beginning early Nov. and
2005 ending early Dec.; followed by two wells plus option with
Coogee in low 90's beginning early Dec. 2005. and ending mid
Feb. 2006; followed by LOI for one well plus option in mid 90's
beginning mid Mar. and ending mid May.; followed by four wells
plus option in high 90's with Woodside beginning mid May. 2006
and ending early Nov. 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Patriot high 70's late July 2005 late Sept. One well with Bass Straits in high 70's, early Sept.-mid Sept.;
2005 followed by one well with Bass Straits in high 130's, mid
Sept.-late Sept.; followed by one well with Apache in high
70's, late Sept.-mid Oct.; followed by one assignment well with
Nexus in low 150's, mid Oct.-late Dec. 2005; followed by 10-day
survey ending mid-Jan. 2006; followed by first of four Anzon
options in mid 130's, mid Jan. 2006-mid Feb.; followed by
second of four Anzon options in upper 130's, mid Feb.-mid Mar.;
followed by third and fourth of four options in low 140's, mid
Mar.-mid May; followed by one exercised assignment option well
from Apache with Nexus in high 70's, mid May-mid June; followed
by LOI for one assignment well in low 200,000's, mid June-late
July; followed by four wells plus option with NZOP in low
100's, late July-late Dec. 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Epoch mid 70's late April 2005 mid Dec. Three option wells exercised in mid 70's beginning in mid Dec.
2005 2005 and ending in late Mar. 2006; five option wells remain
available. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean General mid 70's mid June 2005 mid Jan. Note: 5th & 6th wells in mid 90's beginning early Nov. 2005 and
2006 ending mid Jan. 2006; followed by one well plus two option
wells with Premier in high 70's in Viet Nam beginning mid Jan.
2006 and ending mid Mar. 2006; followed by LOI for three wells
plus three options wells in mid 130's beginning mid Mar. 2006
and ending early Sept. 2006; followed by LOI for three wells in
mid 170's beginning early Sept. 2006 and ending late Jan. 2007.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Baroness - - - Under mobe to GOM for one year plus option with Amerada Hess in
low 200's beginning early Nov. 2005 and ending early Nov. 2006.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Rover mid 170's late June 2005 mid Jan. Available; actively marketing.
2008
- ------------------------------------------------------------------------------------------------------------------------------------
4
DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF October 4, 2005
<Table>
<Caption>
RIG NAME WD DESIGN LOCATION STATUS* OPERATOR CURRENT TERM
- ------------------------------------------------------------------------------------------------------------------------------------
BRAZIL
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Yatzy 3,300' DP DYVI Super Yatzy Brazil Contracted Petrobras 700 day extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Winner 3,500' Aker H-3 Brazil Contracted Petrobras 700 day extension
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Alliance 5,000' Alliance Class Brazil Contracted Petrobras four year extension
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL DRILLSHIPS (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Clipper 7,500' DP Fluor/Mitsubishi Brazil Contracted Petrobras 700 day extension
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL JACKUPS (2)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Sovereign 250' Independent Leg Cantilever Indonesia Contracted Santos eight wells
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Heritage 300' Independent Leg Cantilever Qatar Contracted Conoco/Phillips two wells plus option
- ------------------------------------------------------------------------------------------------------------------------------------
UPGRADE (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Endeavor 2,000' Victory Class Shipyard Upgrading DODI -
- ------------------------------------------------------------------------------------------------------------------------------------
COLD STACKED--RESERVED FOR UPGRADE (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Garden Banks** 2,200' Victory Class GOM Out of Service - -
- ------------------------------------------------------------------------------------------------------------------------------------
RIGS UNDER CONSTRUCTION (2)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Shield 350' Independent Leg Cantilever Shipyard - - -
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Scepter 350' Independent Leg Cantilever Shipyard - - -
- ------------------------------------------------------------------------------------------------------------------------------------
EST. END
RIG NAME DAYRATE (000S) START DATE DATE FUTURE CONTRACTS AND OTHER INFORMATION
- ------------------------------------------------------------------------------------------------------------------------------------
BRAZIL
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Yatzy mid 70's early Nov. 2003 early Oct. Four-year term extension with Petrobras in mid 110's, plus
2005 potential bonus, beginning early Oct. 2005 and ending early
Oct. 2009. (21-day maintenance Q3 or Q4). Available.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Winner mid 50's early April 2004 mid Mar. Four-year term extension with Petrobras in low 110's, plus
2006 potential bonus, beginning mid Mar. 2006 and ending mid Mar.
2010. Available.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Alliance mid 150's early Sept. 2005 early Available.
Sept. 2009
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL DRILLSHIPS (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Clipper low 100's early Jan. 2003 mid Dec. Five-year term extension with Petrobras in low 180's, plus
2005 potential bonus, beginning mid Dec. 2005 and ending mid Dec.
2010. Available.
- ------------------------------------------------------------------------------------------------------------------------------------
INTERNATIONAL JACKUPS (2)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Sovereign upper 60's early May 2005 late Oct. Two wells with Amerada Hess plus two exercised option wells in
2005 mid 80's beginning late Oct. and ending mid Dec. 2005; followed
by two option wells with Santos in mid 70's beginning mid Dec.
2005 and ending mid Mar. 2006; followed by three wells with
Santos in upper 60's beginning mid Mar. and ending mid May;
followed by two wells with Anadarko in mid 80's beginning mid
May and ending early July 2006. Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Heritage low 70's mid June 2005 late Mar. Available; actively marketing.
2006
- ------------------------------------------------------------------------------------------------------------------------------------
UPGRADE (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Endeavor - - - Singapore shipyard for upgrade to 10,000 ft. capable 5th
Generation rig. Estimated completion early 2007; followed by
commissioning beginning early Mar. 2007; followed by LOI for a
term of between two and four years earning approximate total
revenue of between $198 million and $355 million depending upon
the length of the contract selected by the operator no later
than year-end 2005. Contract is expected to begin mid 2007.
Available; actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
COLD STACKED--RESERVED FOR UPGRADE (1)
- ------------------------------------------------------------------------------------------------------------------------------------
Garden Banks** - - - Currently retired from active service as drilling and
production platform.
- ------------------------------------------------------------------------------------------------------------------------------------
RIGS UNDER CONSTRUCTION (2)
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Shield - - - Singapore shipyard, estimated completion Q1 2008. Available;
actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
Ocean Scepter - - - Brownsville shipyard, estimated completion Q1 2008. Available;
actively marketing.
- ------------------------------------------------------------------------------------------------------------------------------------
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 COMPLETED PURCHASE OF THE GARDEN BANKS ON
AUGUST 25, 2005.
GOM = Gulf of Mexico