. . . DIAMOND OFFSHRE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 28, 2005 EST. CURRENT DAYRATE START END FUTURE CONTRACT RIG NAME WD DESIGN LOCATION STATUS* OPERATOR TERM (000S) DATE DATE AND OTHER INFORMATION - ------------------------------------------------------------------------------------------------------------------------------------ Domestic Deepwater Semisubmersibles (6) - ------------------------------------------------------------------------------------------------------------------------------------ One well with Noble in high 110's beginning late Mar. and ending mid April; followed by 120 day term plus option with Noble in mid 120's beginning mid early late April and ending mid low Feb. Mar. Aug. 2005. Available; Ocean Quest 3,500' Victory Class GOM Contracted Noble one well 100's 2005 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ 90 day term extension plus option with Kerr- McGee in low 140's beginning mid July 2005 early mid and ending early Oct. 220 day mid Dec. July 2005. Available; Ocean Star 5,500' Victory Class GOM Contracted Kerr-McGee extension 70's 2004 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well extension plus option with Mariner in mid 110's beginning mid Mar. 2005 and ending late April 2005; followed by two wells plus option with Mariner in low 130's beginning late April and ending late July 2005; followed by three well extension with Mariner/Pioneer in low 150's beginning late late mid July and ending early one well mid Oct. Mar. Oct. 2005. Available; Ocean America 5,500' Ocean Odyssey GOM Contracted Mariner extension 80's 2004 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well with Kerr- McGee in high 90's beginning early April 2005 and ending mid June 2005, followed by one well plus options with Kerr-McGee in low 130's beginning mid June and ending mid Aug. 2005; followed by 180 day term extension with Kerr-McGee in low 150's beginning mid Aug. 2005 and ending late early mid Feb. 2006. mid Jan. April Available; actively Ocean Valiant 5,500' Ocean Odyssey GOM Contracted Kerr-McGee one well 80's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ mid late 100 day term low Feb. May Available; actively Ocean Victory 5,500' Victory Class GOM Contracted Shell plus option 130's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ early early Ocean DP Aker H-3.2 five-year mid Jan. Jan. Available; actively Confidence 7,500' Modified GOM Contracted BP term 170's 2001 2006 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ DOMESTIC 2ND/3RD GENERATION SEMISUBMERSIBLES (4) - ------------------------------------------------------------------------------------------------------------------------------------ One well with Walter in low 80's beginning mid Mar. 2005 and ending mid mid mid April 2005. Walter Oil low Feb. Mar. Available; actively Ocean Voyager 2,000' Victory Class GOM Contracted & Gas one well 70's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well for Kerr-McGee in upper 50's beginning late Mar. and ending late April 2005; followed by one well with Kerr-McGee in mid 70's beginning late April and ending late June 2005; followed by two well extension plus option with Kerr-McGee in mid 90's beginning late June and ending early late mid Sept. 2005. mid Feb. Mar. Available; actively Ocean Concord 2,200' F&G SS-2000 GOM Contracted ENI one well 50's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Rig will go in for approximately 90-day Survey and maintenance between second and third well, beginning early April and ending early July. Following survey, two additional wells with Walter in low 60's beginning early July and ending early Sept.; followed by one well plus option with Walter in low 80's beginning early Sept. late early and ending early Oct. Walter Oil three low Jan. April 2005. Available; Ocean Lexington 2,200' F&G SS-2000 GOM Contracted & Gas wells 50's 2005 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Two wells plus option with LLOG in low 110's beginning mid mid mid June and ending mid three mid Dec. June Nov. 2005. Available; Ocean Saratoga 2,200' F&G SS-2000 GOM Contracted LLOG wells 60's 2004 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 28, 2005 EST. CURRENT DAYRATE START END FUTURE CONTRACT RIG NAME WD DESIGN LOCATION STATUS* OPERATOR TERM (000S) DATE DATE AND OTHER INFORMATION - ------------------------------------------------------------------------------------------------------------------------------------ DOMESTIC JACKUPS (12) - ------------------------------------------------------------------------------------------------------------------------------------ late mid Mat Walter Oil two well mid Jan. April Available; actively Ocean Crusader 200' Cantilever GOM Contracted & Gas extension 30's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Two wells plus option with ADTI/CMI/Palace in low 40's beginning mid Mar. and ending late mid early April 2005. Mat ADTI/ high Jan. Mar. Available; actively Ocean Drake 200' Cantilever GOM Contracted Kerr-McGee two wells 30's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ late late low Jan. May Available; actively Ocean Champion 250' Mat Slot GOM Contracted Hunt two wells 40's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ early mid Independent mid Jan. May Available; actively Ocean Columbia 250' Leg Cantilever GOM Contracted Kerr-McGee Five wells 40's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ late mid Independent three wells high Feb. June Available; actively Ocean Spartan 300' Leg Cantilever GOM Contracted LLOG plus option 40's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well with Forest in mid 40's beginning mid Mar. and ending late April 2005. Maintenance/repairs late April through mid mid late June 2005. Independent mid Dec. Mar. Available; actively Ocean Spur 300' Leg Cantilever GOM Contracted Spinnaker one well 40's 2004 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well with El Paso in mid 50's beginning early Mar. and ending late early early April 2005. Independent low Jan. Mar. Available; actively Ocean King 300' Leg Cantilever GOM Contracted El Paso one well 50's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well with Mariner in low 50's beginning late Mar. and ending mid April 2005; followed by two wells plus option with Houston Exploration in low 50's beginning mid mid late April and ending late Independent ADTI/ high Feb. Mar. July 2005. Available; Ocean Nugget 300' Leg Cantilever GOM Contracted Mission one well 40's 2005 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ late late Independent two wells mid Feb. May Available; actively Ocean Summit 300' Leg Cantilever GOM Contracted LLOG plus option 40's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well with Newfield in low 50's beginning late Mar. and ending early late mid May 2005. Independent high Feb. Mar. Available; actively Ocean Warwick 300' Leg Cantilever GOM Contracted Newfield one well 40's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ late mid Independent one well mid Jan. May Available; actively Ocean Titan 350' Leg Cantilever GOM Contracted BHP plus option 50's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ early mid Independent Chevron/ one well mid Jan. June Available; actively Ocean Tower 350' Leg Cantilever GOM Contracted Texaco plus option 50's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ DIAMOND OFFSHRE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 28, 2005 EST. CURRENT DAYRATE START END FUTURE CONTRACT RIG NAME WD DESIGN LOCATION STATUS* OPERATOR TERM (000S) DATE DATE AND OTHER INFORMATION - ------------------------------------------------------------------------------------------------------------------------------------ INTERNATIONAL SEMISUBMERSIBLES (17) - ------------------------------------------------------------------------------------------------------------------------------------ MEXICO - ------------------------------------------------------------------------------------------------------------------------------------ late mid Ocean Bethlehem four year mid July Dec. Ambassador 1,100' SS-2000 GOM Contracted PEMEX term work 50's 2003 2007 Available. - ------------------------------------------------------------------------------------------------------------------------------------ late early Ocean four year low July Oct. Whittington 1,500' Aker H-3 GOM Contracted PEMEX term work 60's 2003 2006 Available. - ------------------------------------------------------------------------------------------------------------------------------------ F&G 9500 mid late Enhanced four year high Aug. July Ocean Worker 3,500' Pacesetter GOM Contracted PEMEX term work 60's 2003 2007 Available. - ------------------------------------------------------------------------------------------------------------------------------------ late mid Ocean four year mid Oct. July Yorktown 2,850' F&G SS-2000 GOM Contracted PEMEX term work 40's 2003 2007 Available. - ------------------------------------------------------------------------------------------------------------------------------------ NORTH SEA - ------------------------------------------------------------------------------------------------------------------------------------ early early North low Jan. Jan. Available; actively Ocean Nomad 1,200' Aker H-3 Sea Contracted Talisman one year 80's 2005 2006 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One year program with Shell in U.K. North Sea in Earl & low 80's beginning late Wright late late Mar. 2005 and ending late Ocean Sedco North high Mar. Mar. Mar. 2006. Available; Guardian 1,500' 711 Series Sea Contracted Shell one year 40's 2004 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ early late Ocean North one year low Jan. Dec. Available; actively Princess 1,500' Aker H-3 Sea Contracted Talisman extension 80's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Return to yard for additional storm damage repairs. Est. completion late Mar. 2005. One year plus option program in Norway with Statoil in low 140's beginning in late late early Mar. 2005 and ending in Ocean North low Feb. Mar. late Mar. 2006. Available; Vanguard 1,500' Bingo 3000 Sea Contracted ENI P&A well 140's 2005 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ AUSTRALASIA - ------------------------------------------------------------------------------------------------------------------------------------ One well plus option with Hardman in low 80's beginning in mid Mar. and ending early April; followed by LOI for one well plus option in mid 80's beginning early April and ending mid May; followed by LOI for one well plus option in mid 80's beginning mid May and ending early July; followed by LOI for one well in mid 80's beginning early July and ending early Aug.; followed by two wells plus option in low 90's beginning early Aug. and ending early Oct.; followed by LOI for one well plus option in mid 90's beginning early Oct. and ending early Nov.; followed by LOI for four wells plus option in high 90's beginning early Nov. early mid 2005 and ending early May Ocean Victory mid Feb. Mar. 2006. Available; actively Bounty 1,500' Class Australia Contracted Coogee Res. two wells 70's 2005 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Two wells with Woodside in high 70's beginning early Mar. and ending early April; followed by two wells plus option with Santos in high 70's beginning early April and ending mid June; followed by LOI for one well plus late early three options in high Ocean Bass high Jan. Mar. 70's beginning mid June Patriot 1,500' Bingo 3000 Australia Contracted Straits two wells 70's 2005 2005 and ending late July 2005 - ------------------------------------------------------------------------------------------------------------------------------------ Singapore shipyard preping for Murphy contract until late Mar. Four wells plus option with Murphy in low 70's in Malaysia beginning late Mar. and ending mid Ocean Dec. 2005. Available; Epoch 1,640' Korkut Mobe DODI -- -- -- -- -- actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ One well plus one option plus demobe with KNOC in Viet Nam in mid 50's beginning mid April and ending early June 2005; followed by LOI for two wells plus option in mid 70's in Malaysia beginning early June and mid mid ending early Sept. 2005. Ocean high Dec. April Available; actively General 1,640' Korkut Korea Contracted KNOC two wells 60's 2004 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Lump sum mobe to GOM beginning mid May and ending mid Oct., including prep; followed by LOI with Amerada Hess for one-year term plus mobe in low 200's in GOM beginning mid Oct. 2005 late mid and ending mid Oct. 2006. Ocean Victory 180 day mid Dec. May Available; actively Baroness 7,000' Class Indonesia Contracted Unocal extension 130's 2004 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ LOI with Murphy for 950 day extension at average dayrate in mid 170's beginning late June 2005 and late late ending early Feb. Ocean Victory six option low Jan. June 2008. Available; Rover 7,000' Class Malaysia Contracted Murphy wells 120's 2005 2005 actively marketing. - ------------------------------------------------------------------------------------------------------------------------------------ DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF FEBRUARY 28, 2005 EST. FUTURE CONTRACT CURRENT DAYRATE START END AND OTHER RIG NAME WD DESIGN LOCATION STATUS* OPERATOR TERM (000S) DATE DATE INFORMATION - ------------------------------------------------------------------------------------------------------------------------------------ BRAZIL - ------------------------------------------------------------------------------------------------------------------------------------ DP DYVI early mid Super 700 day Nov. Oct. Ocean Yatzy 3,300' Yatzy Brazil Contracted Petrobras extension mid 70's 2003 2005 Available. - ------------------------------------------------------------------------------------------------------------------------------------ early mid 700 day April Mar. Ocean Winner 3,500' Aker H-3 Brazil Contracted Petrobras extension mid 50's 2004 2006 Available. - ------------------------------------------------------------------------------------------------------------------------------------ early early Alliance one year Sept. Sept. Ocean Alliance 5,000' Class Brazil Contracted Petrobras extension high 90's 2004 2005 Available. - ------------------------------------------------------------------------------------------------------------------------------------ INTERNATIONAL DRILLSHIPS (1) - ------------------------------------------------------------------------------------------------------------------------------------ early early Available; DP Fluor/ 700 day Jan. Mar. actively Ocean Clipper 7,500' Mitsubishi Brazil Contracted Petrobras extension low 100's 2003 2006 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ INTERNATIONAL JACKUPS (2) - ------------------------------------------------------------------------------------------------------------------------------------ Independent mid mid Available; Leg three wells Nov. April actively Ocean Sovereign 250' Cantilever Bangladesh Contracted Cairn Energy plus option low 60's 2004 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ Independent early late Available; Leg six wells Nov. April actively Ocean Heritage 300' Cantilever India Contracted Cairn Energy plus options low 60's 2004 2005 marketing. - ------------------------------------------------------------------------------------------------------------------------------------ UPGRADE (1) - ------------------------------------------------------------------------------------------------------------------------------------ Preparing for mobe to Singapore shipyard for upgrade to 8,000 ft. design 5th Generation rig. Estimated completion early 2007. Available; Victory Cold actively Ocean Endeavor 2,000' Class GOM Stacked DODI -- -- -- -- marketing. - ------------------------------------------------------------------------------------------------------------------------------------ COLD STACKED (2) - ------------------------------------------------------------------------------------------------------------------------------------ Cold Cold stacked Ocean Liberator 600' Aker H-3 S. Africa Stacked DODI -- -- -- -- Nov. '02. - ------------------------------------------------------------------------------------------------------------------------------------ Cold Cold stacked Ocean New Era 1,500' Korkut GOM Stacked DODI -- -- -- -- Dec. '02. - ------------------------------------------------------------------------------------------------------------------------------------ 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. GOM = Gulf of Mexico