Ocean Rig UDW Inc. Announces Letter of Award for
a 5 Well Drilling Contract for the Ocean Rig Skyros


Nicosia, Cyprus - June 17, 2013

Ocean Rig UDW Inc. (NASDAQ: ORIG) (the “Company” or “Ocean Rig”), a global provider of offshore deepwater drilling services, announced today that it has received a Letter of Award for its ultra deepwater drillship “Ocean Rig Skyros”, from a major oil company.

The Letter of Award is for 5 wells or a minimum of 275 days contract for drilling offshore West Africa, with an estimated backlog of approximately 190 million. The Letter of Award is subject to completion of definitive documentation and receipt of regulatory approvals. The contract is expected to commence upon delivery of the drillship from the shipyard, in October 2013.

As a result of this LOA, as of today, our total contracted backlog (including LOAs) stands at about $5.0 billion.

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 10 offshore ultra deepwater drilling units, comprising of 2 ultra deepwater semisubmersible drilling rigs and 8 ultra deepwater drillships, 3 of which remain to be delivered to the company during 2013 and 1 in 2015.

Ocean Rig press release