EXHIBIT 99.1 DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 2, 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 Patriot 1,500' Bingo 3000 South Africa Idle DODI - -------------------------------------------------------------------------------------------------------------- NORTH SEA - -------------------------------------------------------------------------------------------------------------- Ocean Nomad 1,200' Aker H-3 Mobe to Contracted Premier Guinea Bissau - -------------------------------------------------------------------------------------------------------------- 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 Idle DODI - -------------------------------------------------------------------------------------------------------------- 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 Ecuador Contracted Noble Energy Cantilever - -------------------------------------------------------------------------------------------------------------- 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 2, 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 first of two wells plus high 30's late Nov. 2003 option - --------------------------------------------------------------------------------- Ocean Saratoga one well 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 plus option 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 two wells plus option mid 30's mid Jan. 2004 - --------------------------------------------------------------------------------- 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 - --------------------------------------------------------------------------------- 1 - --------------------------------------------------------------------------------- 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 Patriot - - - - --------------------------------------------------------------------------------- NORTH SEA - --------------------------------------------------------------------------------- Ocean Nomad one well high 40's mid Feb. 2004 - --------------------------------------------------------------------------------- Ocean Guardian one year low 50's early April 2003 - --------------------------------------------------------------------------------- Ocean Princess first option declared plus low 40's mid Nov. 2003 option - --------------------------------------------------------------------------------- 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 Second 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 - - - - --------------------------------------------------------------------------------- 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 option high 30's mid Nov. 2003 - --------------------------------------------------------------------------------- Ocean Heritage three wells plus options mid 50's mid Jan. 2004 - --------------------------------------------------------------------------------- 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 2, 2004 RIG NAME EST. END DATE FUTURE CONTRACT AND OTHER INFORMATION - ---------------------------------------------------------------------------------------------------------- DOMESTIC DEEPWATER SEMISUBMERSIBLES (6) - ---------------------------------------------------------------------------------------------------------- Ocean Quest late Feb. 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 mid Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Confidence early Jan. 2006 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (3) - ---------------------------------------------------------------------------------------------------------- Ocean Concord - special survey thru mid Feb. 2004, available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Lexington mid Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Saratoga early March 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- DOMESTIC JACKUPS (11) - ---------------------------------------------------------------------------------------------------------- Ocean Crusader mid Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Drake mid Feb. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Columbia late Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Spartan mid Feb. 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 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Warwick mid Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Titan late Feb. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Tower mid Feb. 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------- 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 Patriot - available; actively marketing. - ---------------------------------------------------------------------------------------------------------- NORTH SEA - ---------------------------------------------------------------------------------------------------------- Ocean Nomad mid March 2004 Three wells plus option in Gabon with Vaalco/SASOL in high 40s beginning mid March 2004 and ending late July 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- 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 Feb. 2004 Two wells plus option in North Sea with Talisman in mid 40's beginning mid Feb. 2004 and ending 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 early June 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Epoch mid Nov. 2004 available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean General early April 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Baroness early May 2004 available; actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Rover late April 2004 actively marketing. - ---------------------------------------------------------------------------------------------------------- 2 BRAZIL - ---------------------------------------------------------------------------------------------------------- Ocean Yatzy mid Feb. 2004 Scheduled for survey beginning mid 1st Qtr. 2004. Estimated downtime 30 days; 700 day extension in mid 70's beginning in early Nov. 2003 and ending early Oct. 2005; available. - ---------------------------------------------------------------------------------------------------------- Ocean Winner - Undergoing scheduled 60 day survey. Low bidder on 700 day contract; available. - ---------------------------------------------------------------------------------------------------------- Ocean Alliance early Sept. 2004 Scheduled for survey in 1st Qtr. '04 Estimated downtime 60 days. - ---------------------------------------------------------------------------------------------------------- INTERNATIONAL DRILLSHIPS (1) - ---------------------------------------------------------------------------------------------------------- Ocean Clipper mid Dec. 2005 available. - ---------------------------------------------------------------------------------------------------------- INTERNATIONAL JACKUPS (2) - ---------------------------------------------------------------------------------------------------------- Ocean Sovereign early Feb. 2004 Two wells plus two options with Amerada Hess in high 30's beginning early Feb. 2004 and ending early April 2004; available, actively marketing. - ---------------------------------------------------------------------------------------------------------- Ocean Heritage mid July 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