ORIG Ocean Rig Udw Inc. New (delisted)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

OCEAN RIG UDW INC. ANNOUNCES RECEIPT OF NASDAQ NOTICE

Grand Cayman, Cayman Islands – September 27, 2016 – Ocean Rig UDW Inc. (NASDAQ: ORIG) (the “Company” or “Ocean Rig”), a global provider of offshore deepwater drilling services, today announced it has received written notification from The Nasdaq Stock Market ("Nasdaq") dated September 26, 2016, indicating that because the closing bid price of the Company's common stock for 30 consecutive business days, from August 12, 2016 to September 23, 2016, was below the minimum $1.00 per share bid price requirement for continued listing on the Nasdaq Global Select Market, the Company is not in compliance with Nasdaq Listing Rule 5550(a)(2). Pursuant to Nasdaq Listing Rule 5810(c)(3)(A), the applicable grace period to regain compliance is 180 days, or until March 27, 2017.

The Company intends to monitor the closing bid price of its common stock between now and March 27, 2017 and is considering its options, including a reverse stock split, in order to regain compliance with the Nasdaq minimum bid price requirement. The Company can cure this deficiency if the closing bid price of its common stock is $1.00 per share or higher for at least ten consecutive business days during the grace period. In the event the Company does not regain compliance within the 180-day grace period and it meets all other listing standards and requirements, the Company may be eligible for additional 180-day grace period.

The Company's business operations are not affected by the receipt of the notification.

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.

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

Investor Relations / Media:

Nicolas Bornozis

Capital Link, Inc. (New York)

Tel. 212-661-7566

E-mail: oceanrig@capitallink.com

Forward-Looking Statements

Matters discussed in this release may constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The Private Securities Litigation Reform Act of 1995 provides safe harbor protections for forward-looking statements in order to encourage companies to provide prospective information about their business. The Company desires to take advantage of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and is including this cautionary statement in connection with such safe harbor legislation. Forward-looking statements relate to Ocean Rig’s expectations, beliefs, intentions or strategies regarding the future. These statements may be identified by the use of words like “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “should,” “seek,” and similar expressions.

Forward-looking statements reflect Ocean Rig’s current views and assumptions with respect to future events and are subject to risks and uncertainties. The forward-looking statements in this release are based upon various assumptions, many of which are based, in turn, upon further assumptions, including without limitation, management’s examination of historical operating trends, data contained in Ocean Rig’s records and other data available from third parties. Although Ocean Rig believes that these assumptions were reasonable when made, because these assumptions are inherently subject to significant uncertainties and contingencies which are difficult or impossible to predict and are beyond Ocean Rig’s control, Ocean Rig cannot assure you that it will achieve or accomplish these expectations, beliefs or projections described in the forward- looking statements contained herein. Actual and future results and trends could differ materially from those set forth in such statements.

Important factors that, in Ocean Rig’s view, could cause actual results to differ materially from those discussed in the forward-looking statements include factors related to (i) the offshore drilling market, including supply and demand, utilization, day rates and customer drilling programs, commodity prices, effects of new rigs and drillships on the market and effects of declines in commodity process and downturns in the global economy on the market outlook for our various geographical operating sectors and classes of rigs and drillships; (ii) hazards inherent in the drilling industry and marine operations causing personal injury or loss of life, severe damage to or destruction of property and equipment, pollution or environmental damage, claims by third parties or customers and suspension of operations; (iii) newbuildings, upgrades, and shipyard and other capital projects; (iv) changes in laws and governmental regulations, particularly with respect to environmental matters; (v) the availability of competing offshore drilling vessels; (vi) political and other uncertainties, including risks of terrorist acts, war and civil disturbances; piracy; significant governmental influence over many aspects of local economies, seizure; nationalization or expropriation of property or equipment; repudiation, nullification, modification or renegotiation of contracts; limitations on insurance coverage, such as war risk coverage, in certain areas; political unrest; foreign and U.S. monetary policy and foreign currency fluctuations and devaluations; the inability to repatriate income or capital; complications associated with repairing and replacing equipment in remote locations; import export quotas, wage and price controls imposition of trade barriers; regulatory or financial requirements to comply with foreign bureaucratic actions; changing taxation policies; and other forms of government regulation and economic conditions that are beyond our control; (vii) the performance of our rigs; (viii) our ability to procure or have access to financing and our ability comply with our loan covenants; (ix) our substantial leverage, including our ability to generate sufficient cash flow to service our existing debt and the incurrence of substantial indebtedness in 11 the future (x) our ability to successfully employ our drilling units; (xi) our capital expenditures, including the timing and cost of completion of capital projects; (xii) our revenues and expenses; (xiii) complications associated with repairing and replacing equipment in remote locations; and (xiv) regulatory or financial requirements to comply with foreign bureaucratic actions, including potential limitations on drilling activities. Due to such uncertainties and risks, investors are cautioned not to place undue reliance upon such forward-looking statements.

Risks and uncertainties are further described in reports filed by Ocean Rig UDW Inc. with the U.S. Securities and Exchange Commission, including the Company’s most recently filed Annual Report on Form 20-F.