OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF 2011 ANNUAL REPORT ON FORM 20-F

Please note that the following press release, was 
originally issued on March 16, 2012 and was 
resubmitted on May 22, 2012. The Press Release of May 
22, 2012 includes the attached annual report on Form 
20-F for the year ended December 31, 2011. There were 
no other changes made to the resubmitted press 
release from the original version. 

Nicosia, Cyprus - March 16, 2012 - Ocean Rig UDW Inc. 
(NASDAQ:ORIG)  (the "Company" or "Ocean Rig"), a 
global provider of offshore deepwater drilling 
services, today announced that its annual report on 
Form 20-F for the year ended December 31, 2011 
(the "Annual Report") has been filed with the U.S. 
Securities and Exchange Commission. The Annual Report 
may also be accessed through the Ocean Rig website, 
www.ocean-rig.com, at the Investor Relations section 
under Quarterly and Annual Reports.

Shareholders may also request a hard copy of the 
Annual Report, which includes the Company's complete 
2011 audited financial statements, free of charge by 
contacting Capital Link Inc., the Company's investor 
relations advisor, using the contact details provided 
below. 

About Ocean Rig

Ocean Rig is an international offshore drilling 
contractor providing oilfield services for offshore 
oil and gas exploration, development and production 
drilling, and specializing in the ultra-deepwater and 
harsh-environment segment of the offshore drilling 
industry. The company owns and operates 9 offshore 
ultra deepwater drilling units, comprising of 2 ultra 
deepwater semisubmersible drilling rigs and 7 ultra 
deepwater drillships, 3 of which remain to be 
delivered to the company during 2013.

Ocean Rig's common stock is listed on the NASDAQ 
Global Select Market where it trades under the 
symbol "ORIG." 

Visit the Company's website at www.ocean-rig.com.

Contact: 
Investor Relations / Media:
Nicolas Bornozis
Capital Link, Inc. (New York)
Tel. 212-661-7566
E-mail:  
Social Media Pitch:
OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF 2011 ANNUAL REPORT ON FORM 20-F