EXHIBIT 99.1 DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 17, 2004 RIG NAME WD DESIGN LOCATION STATUS* OPERATOR - --------------------------------------------------------------------------------------------------------------- DOMESTIC DEEPWATER SEMISUBMERSIBLES (6) - --------------------------------------------------------------------------------------------------------------- Ocean Quest 3,500' Victory Class GOM Contracted Noble Energy - --------------------------------------------------------------------------------------------------------------- Ocean Star 5,500' Victory Class GOM Idle DODI - --------------------------------------------------------------------------------------------------------------- Ocean America 5,500' Ocean Odyssey GOM Contracted W&T Offshore - --------------------------------------------------------------------------------------------------------------- Ocean Valiant 5,500' Ocean Odyssey GOM Contracted ENI - --------------------------------------------------------------------------------------------------------------- Ocean Victory 5,500' Victory Class GOM Contracted Spinnaker Exploration - --------------------------------------------------------------------------------------------------------------- Ocean Confidence 7,500' DP Aker H-3.2 GOM Contracted BP Modified - --------------------------------------------------------------------------------------------------------------- DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (3) - --------------------------------------------------------------------------------------------------------------- Ocean Concord 2,200' F&G SS-2000 GOM Idle DODI - --------------------------------------------------------------------------------------------------------------- Ocean Lexington 2,200' F&G SS-2000 GOM Contracted Walter Oil & Gas - --------------------------------------------------------------------------------------------------------------- Ocean Saratoga 2,200' F&G SS-2000 GOM Contracted LLOG - --------------------------------------------------------------------------------------------------------------- DOMESTIC JACKUPS (11) - --------------------------------------------------------------------------------------------------------------- Ocean Crusader 200' Mat Cantilever GOM Contracted Stone Energy - --------------------------------------------------------------------------------------------------------------- Ocean Drake 200' Mat Cantilever GOM Contracted Callon Petroleum - --------------------------------------------------------------------------------------------------------------- Ocean Columbia 250' Independent Leg GOM Contracted ADTI/Helis Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Spartan 300' Independent Leg GOM Contracted LLOG Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Spur 300' Independent Leg GOM Contracted Forest Oil Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean King 300' Independent Leg GOM Contracted BP America Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Nugget 300' Independent Leg GOM Contracted Taylor Energy Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Summit 300' Independent Leg GOM Contracted Chevron/Texaco Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Warwick 300' Independent Leg GOM Contracted Murphy Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Titan 350' Independent Leg Slot GOM Contracted Chevron/Texaco - --------------------------------------------------------------------------------------------------------------- Ocean Tower 350' Independent Leg GOM Contracted Denbury Cantilever - --------------------------------------------------------------------------------------------------------------- 1 - --------------------------------------------------------------------------------------------------------------- INTERNATIONAL SEMISUBMERSIBLES (17) - --------------------------------------------------------------------------------------------------------------- MEXICO - --------------------------------------------------------------------------------------------------------------- Ocean Ambassador 1,100' Bethlehem SS-2000 GOM Contracted PEMEX - --------------------------------------------------------------------------------------------------------------- Ocean Whittington 1,500' Aker H-3 GOM Contracted PEMEX - --------------------------------------------------------------------------------------------------------------- Ocean Worker 3,500' F&G 9500 Enhanced GOM Contracted PEMEX Pacesetter - --------------------------------------------------------------------------------------------------------------- Ocean Yorktown 2,850' F&G SS-2000 GOM Contracted PEMEX - --------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------------------------------------------- AFRICA - --------------------------------------------------------------------------------------------------------------- Ocean Nomad 1,200' Aker H-3 Mobe to Contracted Premier Guinea Bissau - --------------------------------------------------------------------------------------------------------------- Ocean Patriot 1,500' Bingo 3000 South Africa Idle DODI - --------------------------------------------------------------------------------------------------------------- NORTH SEA - --------------------------------------------------------------------------------------------------------------- Ocean Guardian 1,500' Earl & Wright Sedco North Sea Contracted Shell 711 Series - --------------------------------------------------------------------------------------------------------------- Ocean Princess 1,500' Aker H-3 North Sea Contracted Talisman - --------------------------------------------------------------------------------------------------------------- Ocean Vanguard 1,500' Bingo 3000 North Sea Idle DODI - --------------------------------------------------------------------------------------------------------------- AUSTRALASIA - --------------------------------------------------------------------------------------------------------------- Ocean Bounty 1,500' Victory Class Australia Contracted Inpex - --------------------------------------------------------------------------------------------------------------- Ocean Epoch 1,640' Korkut Australia Contracted Santos - --------------------------------------------------------------------------------------------------------------- Ocean General 1,640' Korkut Vietnam Contracted P.V.E&P - --------------------------------------------------------------------------------------------------------------- Ocean Baroness 7,000' Victory Class Indonesia Contracted Unocal - --------------------------------------------------------------------------------------------------------------- Ocean Rover 7,000' Victory Class Singapore Contracted Murphy - --------------------------------------------------------------------------------------------------------------- 2 BRAZIL - --------------------------------------------------------------------------------------------------------------- Ocean Yatzy 3,300' DP DYVI Super Yatzy Brazil Contracted Petrobras - --------------------------------------------------------------------------------------------------------------- Ocean Winner 3,500' Aker H-3 Brazil Contracted Petrobras - --------------------------------------------------------------------------------------------------------------- Ocean Alliance 5,000' Alliance Class Brazil Contracted Petrobras - --------------------------------------------------------------------------------------------------------------- INTERNATIONAL DRILLSHIPS (1) - --------------------------------------------------------------------------------------------------------------- Ocean Clipper 7,500' DP Fluor/Mitsubishi Brazil Contracted Petrobras - --------------------------------------------------------------------------------------------------------------- INTERNATIONAL JACKUPS (2) - --------------------------------------------------------------------------------------------------------------- Ocean Sovereign 250' Independent Leg Indonesia Contracted Santos Cantilever - --------------------------------------------------------------------------------------------------------------- Ocean Heritage 300' Independent Leg Mobe to Contracted Noble Energy Cantilever Ecuador - --------------------------------------------------------------------------------------------------------------- COLD STACKED (5) - --------------------------------------------------------------------------------------------------------------- Ocean Liberator 600' Aker H-3 S. Africa Cold Stacked DODI - --------------------------------------------------------------------------------------------------------------- Ocean Champion 250' Mat Slot GOM Cold Stacked DODI - --------------------------------------------------------------------------------------------------------------- Ocean Endeavor 2,000' Victory Class GOM Cold Stacked DODI - --------------------------------------------------------------------------------------------------------------- Ocean Voyager 3,200' Victory Class GOM Cold Stacked DODI - --------------------------------------------------------------------------------------------------------------- Ocean New Era 1,500' Korkut GOM Cold Stacked DODI - --------------------------------------------------------------------------------------------------------------- NOTES: * ASSUME 95-98% UTILIZATION RATE DURING CONTRACTED PERIODS TO ALLOW FOR NORMAL EQUIPMENT REPAIR DOWNTIME. GOM = Gulf of Mexico ** TABLE CONTINUED ** 3 DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 17, 2004 RIG NAME CURRENT TERM DAYRATE (000S) START DATE - ----------------------------------------------------------------------------------- DOMESTIC DEEPWATER SEMISUBMERSIBLES (6) - ----------------------------------------------------------------------------------- Ocean Quest one well plus option high 40's late Dec. 2003 - ----------------------------------------------------------------------------------- Ocean Star - - - - ----------------------------------------------------------------------------------- Ocean America one well extension plus mid 60's late Nov. 2003 option - ----------------------------------------------------------------------------------- Ocean Valiant three wells plus option high 50's late Dec. 2003 - ----------------------------------------------------------------------------------- Ocean Victory one well low 40s late Nov. 2003 - ----------------------------------------------------------------------------------- Ocean Confidence five-year term 170's early Jan. 2001 - ----------------------------------------------------------------------------------- DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (3) - ----------------------------------------------------------------------------------- Ocean Concord - - - - ----------------------------------------------------------------------------------- Ocean Lexington second of two wells plus high 30's late Nov. 2003 option - ----------------------------------------------------------------------------------- Ocean Saratoga two wells plus option low 40's late Jan. 2004 - ----------------------------------------------------------------------------------- DOMESTIC JACKUPS (11) - ----------------------------------------------------------------------------------- Ocean Crusader one well plus option mid 20's late Dec. 2003 - ----------------------------------------------------------------------------------- Ocean Drake one well high 20's mid Jan. 2004 - ----------------------------------------------------------------------------------- Ocean Columbia one well high 20's late Dec. 2003 - ----------------------------------------------------------------------------------- Ocean Spartan one well high 20's late Nov. 2003 - ----------------------------------------------------------------------------------- Ocean Spur two wells plus option low 30's late Jan. 2004 - ----------------------------------------------------------------------------------- Ocean King one well plus option high 30's mid Jan. 2004 - ----------------------------------------------------------------------------------- Ocean Nugget six month extension plus low 30's mid Jan. 2004 option - ----------------------------------------------------------------------------------- Ocean Summit second of two wells plus mid 30's mid Jan. 2004 option - ----------------------------------------------------------------------------------- Ocean Warwick one well plus option high 20's late Sept. 2003 - ----------------------------------------------------------------------------------- Ocean Titan one well low 50's mid Jan. 2004 - ----------------------------------------------------------------------------------- Ocean Tower fourth of four wells plus mid 30's late Aug. 2003 option - ----------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------- INTERNATIONAL SEMISUBMERSIBLES (17) - ----------------------------------------------------------------------------------- MEXICO - ----------------------------------------------------------------------------------- Ocean Ambassador four year term work mid 50's late July 2003 - ----------------------------------------------------------------------------------- Ocean Whittington four year term work low 60's late July 2003 - ----------------------------------------------------------------------------------- Ocean Worker four year term work high 60's mid Aug. 2003 - ----------------------------------------------------------------------------------- Ocean Yorktown four year term work mid 40's late Oct. 2003 - ----------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------- AFRICA - ----------------------------------------------------------------------------------- Ocean Nomad one well high 40's mid Feb. 2004 - ----------------------------------------------------------------------------------- Ocean Patriot - - - - ----------------------------------------------------------------------------------- NORTH SEA - ----------------------------------------------------------------------------------- Ocean Guardian one year low 50's early April 2003 - ----------------------------------------------------------------------------------- Ocean Princess first of two wells mid 40's mid Feb. 2004 - ----------------------------------------------------------------------------------- Ocean Vanguard _ _ _ - ----------------------------------------------------------------------------------- AUSTRALASIA - ----------------------------------------------------------------------------------- Ocean Bounty third of three wells low 70's mid June 2003 - ----------------------------------------------------------------------------------- Ocean Epoch Exeter/Mutineer mid 60's mid Jan. 2004 development plus option - ----------------------------------------------------------------------------------- Ocean General one option well mid 50's late Jan. 2004 - ----------------------------------------------------------------------------------- Ocean Baroness 400 days plus option 110's late March 2003 - ----------------------------------------------------------------------------------- Ocean Rover third of four option wells 110s late Dec. 2003 - ----------------------------------------------------------------------------------- 2 BRAZIL - ----------------------------------------------------------------------------------- Ocean Yatzy end of primary term Nov. 5, mid 70's early Nov. 1998 2003, completing well - ----------------------------------------------------------------------------------- Ocean Winner 700 day extension mid 50's early April 2004 - ----------------------------------------------------------------------------------- Ocean Alliance four-year contract 110's early Sept. 2000 - ----------------------------------------------------------------------------------- INTERNATIONAL DRILLSHIPS (1) - ----------------------------------------------------------------------------------- Ocean Clipper 700 day extension low 100's early Jan. 2003 - ----------------------------------------------------------------------------------- INTERNATIONAL JACKUPS (2) - ----------------------------------------------------------------------------------- Ocean Sovereign one well plus two options high 30's mid Nov. 2003 - ----------------------------------------------------------------------------------- Ocean Heritage first of three wells plus mid 50's mid Feb. 2004 options - ----------------------------------------------------------------------------------- COLD STACKED (5) - ----------------------------------------------------------------------------------- Ocean Liberator - - - - ----------------------------------------------------------------------------------- Ocean Champion - - - - ----------------------------------------------------------------------------------- Ocean Endeavor - - - - ----------------------------------------------------------------------------------- Ocean Voyager - - - - ----------------------------------------------------------------------------------- Ocean New Era - - - - ----------------------------------------------------------------------------------- NOTES: * ASSUME 95-98% UTILIZATION RATE DURING CONTRACTED PERIODS TO ALLOW FOR NORMAL EQUIPMENT REPAIR DOWNTIME. GOM = Gulf of Mexico ** TABLE CONTINUED ** 3 DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 17, 2004 RIG NAME EST. END DATE FUTURE CONTRACT AND OTHER INFORMATION - ---------------------------------------------------------------------------------------------------------- DOMESTIC DEEPWATER SEMISUBMERSIBLES (6) - ---------------------------------------------------------------------------------------------------------- Ocean Quest mid March 2004 available; actively marketing - ---------------------------------------------------------------------------------------------------------- Ocean Star - available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean America mid March 2004 90 day upgrade/survey likely beginning late 1st Qtr 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Valiant late July 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Victory late Feb. 2004 one well with Chevron/Texaco in mid 60's beginning late Feb. and ending mid May 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Confidence early Jan. 2006 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (3) - ---------------------------------------------------------------------------------------------------------- Ocean Concord - special survey thru mid March 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Lexington late Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Saratoga late April 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- DOMESTIC JACKUPS (11) - ---------------------------------------------------------------------------------------------------------- Ocean Crusader early March 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Drake late Feb. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Columbia late Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Spartan late Feb. 2004 one well plus option with LLOG in low 30's beginning late Feb. and ending late March 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Spur late March 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean King late March 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Nugget early June 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Summit late Feb. 2004 60 day extension plus option with Chevron/Texaco in mid 30's beginning late Feb. and ending late April 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Warwick late Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Titan late Feb. 2004 one well with Chevron/Texaco in low 50's beginning late Feb. and ending late March 2004, available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Tower mid Feb. 2004 one well plus option with SDC/Denburry in mid 40's beginning mid Feb. and ending mid March 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- 1 - ---------------------------------------------------------------------------------------------------------- INTERNATIONAL SEMISUBMERSIBLES (17) - ---------------------------------------------------------------------------------------------------------- MEXICO - ---------------------------------------------------------------------------------------------------------- Ocean Ambassador mid Dec. 2007 available. - ---------------------------------------------------------------------------------------------------------- Ocean Whittington early Oct. 2006 available. - ---------------------------------------------------------------------------------------------------------- Ocean Worker late July 2007 available. - ---------------------------------------------------------------------------------------------------------- Ocean Yorktown mid July 2007 available. - ---------------------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------------------- AFRICA - ---------------------------------------------------------------------------------------------------------- Ocean Nomad mid March 2004 Mobe to Gabon, then three wells plus option in Gabon with Vaalco/SASOL in high 40s beginning early April and ending late July 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Patriot - available; actively marketing. - ---------------------------------------------------------------------------------------------------------- NORTH SEA - ---------------------------------------------------------------------------------------------------------- Ocean Guardian late March 2004 one year extension with Shell in high 40's beginning late March 2004 and ending late March 2005, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Princess mid June 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Vanguard _ available; actively marketing. - ---------------------------------------------------------------------------------------------------------- AUSTRALASIA - ---------------------------------------------------------------------------------------------------------- Ocean Bounty mid Feb. 2004 Two wells plus two option wells with NZOP in low 70's beginning mid Feb. 2004 and ending late May 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Epoch mid Nov. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean General late March 2004 five completion options in mid 50's with P.V.E&P beginning late March and ending mid Sept. 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Baroness early May 2004 180 day option exercised in 110's with Unocal beginning early May and ending early Nov. 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Rover mid April 2004 actively marketing. - ---------------------------------------------------------------------------------------------------------- 2 BRAZIL - ---------------------------------------------------------------------------------------------------------- Ocean Yatzy early March 2004 Scheduled for survey beginning 1st Qtr. 2004. Estimated downtime 30 days; 700 day extension in mid 70's beginning in early Nov. 2003 and ending mid Oct. 2005; available. - ---------------------------------------------------------------------------------------------------------- Ocean Winner early March 2006 survey under way, estimated early April completion; available. - ---------------------------------------------------------------------------------------------------------- Ocean Alliance early Sept. 2004 survey under way, estimated early April completion; available. - ---------------------------------------------------------------------------------------------------------- INTERNATIONAL DRILLSHIPS (1) - ---------------------------------------------------------------------------------------------------------- Ocean Clipper early March 2006 available. - ---------------------------------------------------------------------------------------------------------- INTERNATIONAL JACKUPs (2) - ---------------------------------------------------------------------------------------------------------- Ocean Sovereign early March 2004 Two wells plus two options with Amerada Hess in high 30's beginning early March 2004 and ending late April 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Heritage mid Aug. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- COLD STACKED (5) - ---------------------------------------------------------------------------------------------------------- Ocean Liberator - Cold stacked Nov. '02. - ---------------------------------------------------------------------------------------------------------- Ocean Champion - Cold Stacked Feb. '02. - ---------------------------------------------------------------------------------------------------------- Ocean Endeavor - Cold stacked March '02. - ---------------------------------------------------------------------------------------------------------- Ocean Voyager - Cold stacked March '02. - ---------------------------------------------------------------------------------------------------------- Ocean New Era - Cold stacked Dec. '02. - ---------------------------------------------------------------------------------------------------------- NOTES: * ASSUME 95-98% UTILIZATION RATE DURING CONTRACTED PERIODS TO ALLOW FOR NORMAL EQUIPMENT REPAIR DOWNTIME. GOM = Gulf of Mexico ** TABLE COMPLETE ** 3