Diamond Offshore Drilling (DODRW) 8-K Regulation FD Disclosure

Exhibit 99.1

1 

DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

								Est. End	Future Contracts and Other Information**
Rig Name	WD	Location	Status*	Operator	Current Term	Dayrate (000s)	Start Date	Date	Expected Survey/Downtime Data Follows This Table
Domestic Deepwater Semisubmersibles (8)
Ocean Quest	3,500’	GOM	Contracted	Noble	two year term	mid 350’s	mid April 2007	mid April 2009	Available; actively marketing.
Ocean Star	5,500’	GOM	Contracted	Anadarko	one year term	mid 380’s	mid Oct. 2006	mid Oct. 2007	One-year term extension, plusoption,** with Anadarko in mid 410’s beginning in mid Oct. 2007 and ending in mid Oct 2008. Available; actively marketing.
Ocean America	5,500’	GOM	Contracted	Mariner	one year extension	mid 370’s	mid April 2007	mid Oct. 2007	Rate with Mariner changes to mid 420’s beginning mid Oct. 2007 through mid April 2008. Available; actively marketing.
Ocean Valiant	5,500’	GOM	Contracted	Anadarko	one year term extension	mid 390’s	mid Mar. 2007	mid Mar. 2008	One-year term extension with Anadarko in mid 420’s beginning mid Mar. 2008 and ending mid Mar. 2009. Available; actively marketing.
Ocean Victory	5,500’	GOM	Contracted	Murphy	two year term ext.	mid 320’s	early Dec. 2006	early Dec. 2008	Available; actively marketing.
Ocean Baroness	7,000’	GOM	Contracted	Hess	three year term	mid 360’s	late Dec. 2006	late Dec. 2009	Available; actively marketing.
Ocean Endeavor	2,000’	Singapore	Mobing to GOM	DODI	-	-	-	-	Four year term with Devon in low 250’s ending early July 2011. Available.
Ocean Confidence	7,500’	GOM	Contracted	BP	two year term	low 280’s	early Jan. 2006	early Jan. 2008	LOI** in the GOM in the low 500’s beginning January 2008 and ending January 2012. Available; actively marketing.
Domestic 2nd/3rd Generation Semisubmersibles (5)
Ocean New Era	1,500’	GOM	Contracted	Walter	Remainder of term	mid 130’s	mid Feb. 2007	mid May 2007	2-1/2 year term with Pemex in mid 260’s beginningmid Aug.2007 and endingmid Feb. 2010. Available; actively marketing.
Ocean Whittington	1,500’	GOM	DODI	-	Survey and Maintenance	-	-	mid May 2007	Five-year term contract with Petrobras in Brazil in mid 220’s plus lump sum mobe and potential 15% bonus beginning in mid July 2007 and ending in mid July 2012. Available.
Ocean Voyager	2,000’	GOM	Contracted	Walter	one well	low 80’s	late Jan. 2007	late April 2007	Three wells with Newfield in the low 300’s beginning late April and ending late Aug.; followed by 2-1/2 year term with Pemex in mid 330’s beginning late Oct. 2007 and ending late Feb. 2010. Available; actively marketing.
Ocean Concord	2,200’	GOM	Contracted	Tana	term extension	low 170’s	early Mar. 2007	early June 2007	Additional 90-day extension with Tana, plus option,** in low 270’s beginning early June 2007 and ending early Sept. 2007. Available; actively marketing.
Ocean Saratoga	2,200’	GOM	Contracted	LLOG	six month term + option	low 120’s	late April 2007	late Oct. 2007	Six-month extension with LLOG in low 300’s beginning late Oct. 2007 and ending late April 2008. Available; actively marketing.

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DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

								Est. End
Rig Name	WD	Location	Status*	Operator	Current Term	Dayrate (000s)	Start Date	Date	Future Contracts and Other Information**
Domestic Jackups (9)
Ocean Crusader	200’ MC	GOM	Contracted	Energy Partners	six month term + option	high 110’s	early Mar. 2007	mid Aug. 2007	Available; actively marketing.
Ocean Drake	200’ MC	GOM	DODI	-	-	-	-	-	Available; actively marketing.
Ocean Champion	250’ MS	GOM	Contracted	Apache	one well	low 70’s	early March 2007	mid May 2007	Available; actively marketing.
Ocean Columbia	250’ IC	GOM	Contracted	Newfield	one year term + option	low 120’s	early Aug. 2006	early Aug. 2007	Available; actively marketing.
Ocean Spartan	300’ IC	GOM	Contracted	Hunt	one well	low 70’s	early April 2007	mid May 2007	Available; actively marketing.
Ocean King	300’ IC	GOM	DODI	-	Survey and Maintenance	-	-	-	Available; actively marketing.
Ocean Summit	300’ IC	GOM	Contracted	Apache	two wells	low 80’s	late Feb. 2007	early May 2007	Available; actively marketing.
Ocean Titan	350’ IC	GOM	Contracted	Apache	two wells	mid 70’s	early April 2007	early May 2007	One well extension with Apache in low 80’s beginning early May and ending early July 2007. Available; actively marketing.
Ocean Tower	350’ IC	GOM	Contracted	Chevron	two year term extension + option	low 140’s	late April 2006	late April 2008	Indexed term contractwith floor in low 140’s and ceiling in low 200’s. Available; actively marketing.
International Semisubmersibles (16)
MEXICO
Ocean Ambassador	1,100’	GOM	Contracted	PEMEX	four year term work	mid 50’s	late July 2003	mid Dec. 2007	Available; actively marketing.
Ocean Worker	3,500’	GOM	Contracted	PEMEX	four year term work	high 60’s	mid Aug. 2003	late July 2007	Six-month term with Petro-Canada in Trinidad in the low 450’s beginning late Aug. 2007 and ending late Mar. 2008. Available; actively marketing.
Ocean Yorktown	2,850’	GOM	Contracted	PEMEX	four year term work	mid 40’s	late Oct. 2003	mid July 2007	Five-year term contract with Petrobras in Brazil in mid 230’s plus lump sum mobe and potential 15% bonus beginning in mid July 2007 and ending in mid July 2012. Available.
NORTH SEA/MED
Ocean Nomad	1,200’	North Sea	Contracted	Talisman	18-month extension	mid 280’s	early Feb. 2007	early Aug. 2008	Two-year term extension with Talisman in mid 330’s beginning early Aug. 2008 and ending early Aug. 2010. Available; actively marketing.
Ocean Guardian	1,500’	North Sea	Contracted	Shell	one year	low 160’s	late Mar. 2006	early May 2007	Two-year term with Oilexco in low 350’s beginning early May 2007 and ending early May 2009. Available; actively marketing.
Ocean Princess	1,500’	North Sea	Contracted	Talisman	two year term	mid 150’s	late Jan. 2006	mid Feb. 2008	Two-year term extension with Talisman in mid 330’s beginning mid Feb. 2008 and ending mid Feb. 2010. Available; actively marketing.
Ocean Vanguard	1,500’	North Sea	Contracted	Statoil	term	mid 160’s	early April 2007	mid April 2008	Two year extension with Statoil in low 400’s beginning mid April 2008 and ending mid April 2010. Available; actively marketing.
Ocean Lexington	2,200’	Egypt	Contracted	BP	36 month term	mid 260’s	late Nov. 2006	late Aug. 2009	Available; actively marketing.

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DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

								Est. End
Rig Name	WD	Location	Status*	Operator	Current Term	Dayrate (000s)	Start Date	Date	Future Contracts and Other Information**
AUSTRALASIA
Ocean Bounty	1,500’	Australia	Contracted	Woodside	one well	low 100’s	early April 2007	early June 2007	Balance of four well extension with Woodside in high 100’s beginning early June 2007 and ending late Nov. 2007; followed by one well with Woodside in low 350’s beginning late Nov. 2007 and ending mid Jan. 2008; followed by one-year term with Woodside in low 350’s beginning mid Jan. 2008 and ending mid Jan. 2009. Available; actively marketing.
Ocean Patriot	1,500’	New Zealand	Contracted	NZOP	four wells	high 100’s	early Mar. 2007	mid July 2007	One well with NZOP in mid 370’s beginning mid July 2007 and ending early Aug. 2007; followed by remainder of Australian Worldwide work in New Zealand in mid 370’s beginning early Aug. and ending mid Sept. 2007; followed by remainder of New Zealand work with Santos in mid 370’s beginning mid Sept. and ending mid Dec. 2007; followed bylast option well exercised with Anzon in low 350’sbeginning mid Dec. and ending mid Jan. 2008; followed by remainder of Santos term in mid 370’s beginning mid Feb. 2008 and ending early Sept. 2008. Available; actively marketing.
Ocean Epoch	1,640’	Malaysia	Contracted	Shell	term program plus option	mid 220’s	early April 2006	mid Dec. 2007	Available; actively marketing.
Ocean General	1,640’	Indonesia	mobing to Timor Sea	Inpex	-	high 120’s	mid April 2007	early May 2007	Three wells with Inpex in Indonesia in mid 130’s beginningearly Mayand endinglateNov. 2007; followed by two additional wells with Inpex in mid 170’s beginninglateNov. 2007 and endinglateJan. 2008; followed by two additional assignment wells from Inpex with Total in mid 170’s beginninglateJan. 2008 and endingmid Mar. 2008. Available; actively marketing.
Ocean Rover	7,000’	Malaysia	Contracted	Murphy	remaining Kikeh development wells	mid 180’s	late Feb. 2007	late April 2008	Seven potential option wells of approximately 30-days each with Murphy in mid 240’sendingearly Oct. 2008; followed by one well with Newfield in Malaysia in low 450’s beginningearly Oct. 2008 and endinglate Nov. 2008. Available; actively marketing.
BRAZIL
Ocean Yatzy	3,300’	Brazil	Contracted	Petrobras	four year extension plus potential bonus	mid 110’s	early Oct. 2005	early Oct. 2009	Available.
Ocean Winner	3,500’	Brazil	Contracted	Petrobras	700 day extension	low 110’s	mid Mar. 2006	mid Mar. 2010	Available.
Ocean Alliance	5,000’	Brazil	Contracted	Petrobras	four year extension plus potential bonus	mid 150’s	early Sept. 2005	early Sept. 2009	Available.
International Drillships (1)
Ocean Clipper	7,500’	Brazil	Contracted	Petrobras	five year extension plus potential bonus	low 180’s	mid Dec. 2005	mid Dec. 2010	Available.

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DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

								Est. End
Rig Name	WD	Location	Status*	Operator	Current Term	Dayrate (000s)	Start Date	Date	Future Contracts and Other Information**
International Jackups (4)
Ocean Sovereign	300’ IC	Indonesia	Contracted	Kodeco	18-month term	mid 90’s	mid Oct. 2006	mid-April 2008	Available; actively marketing.
Ocean Spur	300’ IC	Tunisia	Contracted	DIDON Tunisia	one year term	mid 120’s	mid March 2006	end of well late April 2007	180-day term with NOSPCO in mid 160’s in Egypt beginning late April 2007 and ending late Oct. 2007. Available; actively marketing.
Ocean Heritage	300’ IC	Qatar	Contracted	Maersk	one year term	low 140’s	early May 2006	early July 2007	Two wells (approx. 150 days) plusoptionwith QPD in Qatar in mid 170’s beginning early July 2007 and ending early Dec. 2007. Available; actively marketing.
Ocean Nugget	300’ IC	GOM	Contracted	Pemex	term contract	high 160’s	early Oct 2006	late Mar. 2009	Available; actively marketing.
Upgrade (1)
Ocean Monarch	2,200’	Shipyard	Upgrading	DODI	-	-	-	-	Singapore shipyard for upgrade to 10,000 ft. capable 5th Generation rig. Estimated completion, including commissioning and mobe, late fourth quarter 2008; followed by four-year term, plus mobe, plus option, with Anadarko in the GOM in the mid 420’s beginning late Dec. 2008 and ending late Dec. 2012. Available.
New-build Rigs Under Construction (2)
Ocean Shield	350’ IC	Shipyard	-	-	-	-	-	-	Singapore shipyard, estimated completion Q1 2008; followed by one-year term in Australia with ENI in mid 260’s beginning upon delivery in the first quarter of 2008 (option until May 31, 2007 to extend to two years in low 250’s). Available; actively marketing.
Ocean Scepter	350’ IC	Shipyard	-	-	-	-	-	-	Brownsville shipyard, estimated completion Q1 2008. Available; actively marketing.

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DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

EXPECTED DOWNTIME LONGER THAN ONE WEEK
(SUBJECT TO CHANGE.AS OF APRIL 26, 2007)

Anticipated 2007	# Days		Comments
Q2
Ocean Saratoga		21	Completion of Life Extension Work and 5-year Survey Begun in 2006
Ocean Whittington		44	Completion of Life Extension Work and 5-year Survey Begun in 2006
Ocean General		21	Completion of Intermediate Survey and Required Maintenance
Ocean Whittington		46	Mobe to Brazil for 5-year contract
Ocean Alliance		30	Intermediate Survey and Maintenance
Ocean Endeavor		82	Mobe from Singapore to GOM for 4-year contract
Ocean King		62	5-year Special Survey and Maintenance
Ocean New Era		51	Prep Rig for 2 1/2-year Term Contract in Mexico
Ocean Star		14	5-year Special Survey and Maintenance
Ocean Vanguard		19	Intermediate Survey and Maintenance
		390
Q3
Ocean Whittington		13	Completion of Mobe to Brazil for 5-year contract
Ocean Star		26	Completion of 5-year Special Survey and Maintenance Begun in Q2
Ocean King		58	Completion of 5-year Special Survey and Maintenance Begun in Q2
Ocean New Era		32	Completion of Mexico Prep Work Begun in Q2
Ocean New Era		10	Mobe to Mexico
Ocean Baroness		50	5-year Survey and Maintenance
Ocean Crusader		42	5-year Special Survey and Upgrade Power Distribution System
Ocean Quest		30	5-year Special Survey and Permanent Repairs due to Hurricane Damage
Ocean Tower		27	5-year Special Survey and Maintenance
Ocean Victory		27	5-year Special Survey and Maintenance
Ocean Voyager		48	5-year Survey and Mexico Prep Work
Ocean Voyager		10	Mobe to Mexico
Ocean Worker		30	5-year Special Survey and Maintenance
Ocean Worker		34	Mobe to Trinidad from GOM
Ocean Yorktown		66	Maintenance and 5-year Special Survey
		503
Q4
Ocean Crusader		22	Completion of 5-year Special Survey & Upgrade Power Distribution System Begun in Q3
Ocean Yorktown		77	Completion of Life Extension Work and 5-year Special Survey Begun in Q3
Ocean Yorktown		14	Begin Mobe to Brazil for 5-year contract, plus 45 mobe days in 2008
Ocean Victory		11	Completion of 5-year Special Survey and Maintenance
Ocean Quest		30	Completion of 5-year Special Survey and Permanent Repairs due to Hurricane Damage
Ocean Confidence		18	Maintenance on Thrusters
Ocean Clipper		50	5-year Special Survey and Maintenance
Ocean Patriot		10	5-year Special Survey and Maintenance plus 25 days in 2008
		232
Total Anticipated Remaining 2007		1,125

Anticipated 2008 Rig Surveys:Ocean Alliance, Ocean Ambassador, Ocean America, Ocean Columbia, Ocean Drake, Ocean General, Ocean Nomad, Ocean Princess, Ocean Rover, Ocean Valiant(Subject to Change)

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DIAMOND OFFSHORE DRILLING, INC. RIG STATUS REPORT AS OF April 26, 2007

NOTES: * Generally, rig utilization rates approach 95-98% during contracted periods; however, utilization rates can be adversely impacted by additional downtime due to unscheduledrepairs and maintenance, weather conditions and other factors. **An LOI is subject to customary conditions, including the execution of a definitive agreement, and as such may not result in a binding contract. Options are un-priced and any extension of contract is subject to mutually agreeable terms and conditions unless otherwise indicated. Indexed contracts generally reprice every 30 days. Mobe revenues (if any) and mobe expenses are deferred, and generally are amortized over the life of the contract.GOM = Gulf of Mexico.

Forward-Looking Statements: The rig status report may contain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements include, without limitation, any statement that may project, indicate or imply future results, events, performance or achievements, and may contain or be identified by the words “expect,” “intend,” “plan,” “predict,” “anticipate,” “estimate,” “believe,” “should,” “could,” “may,” “might,” “will,” “will be,” “will continue,” “will likely result,” “project,” “budget,” “forecast,” and similar expressions. Statements by the Company in the rig status report that contain forward-looking statements include, but are not limited to, statements regarding the current term, future dayrates, start and end dates and comments concerning future contracts and availability, letters of intent, utilization, surveys, downtime and other aspects of the Company’s drilling rigs, as well as statements concerning rigs being upgraded or to be upgraded and rigs under construction. Such statements are inherently subject to a variety of assumptions, risks and uncertainties that could cause actual results to differ materially from those anticipated or projected. A discussion of the risk factors that could impact these areas and the Company’s overall business and financial performance can be found in the Company’s reports and other documents filed with the Securities and Exchange Commission. These factors include, among others, general economic and business conditions, operating risks, casualty losses, industry fleet capacity, changes in foreign and domestic oil and gas exploration and production activity, competition, changes in foreign, political, social and economic conditions, regulatory initiatives and compliance with governmental regulations, customer preferences and various other matters, many of which are beyond the Company’s control. Given these concerns, investors and analysts should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of the rig status report, and the Company undertakes no obligation to publicly update or revise any forward-looking statement.