ORIG Pengajuan SEC - Ocean Rig UDW Inc.- Laporan Tahunan, Pernyataan Kuasa, Prospektus

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SEC Filings

All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Ocean Rig UDW Inc.

SEC Filings (Chronological Order)

Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.

February 13, 2019	SC 13G/A	ORIG / Ocean Rig UDW Inc. / Oz Management LP - AMENDMENT NO.1 TO SCHEDULE 13G Passive Investment Amendment No.1 to Schedule 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (Amendment No. 1)* Ocean Rig UDW Inc. (Name of Issuer) Class A Common Stock, $.01 par value per share (Title of Class of Securities) G66964118 (CUSI
December 27, 2018	15-12B	ORIG / Ocean Rig UDW Inc. 15-12B UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB Number: 3235-0167 Expires: May 31, 2021 Estimated average burden hours per response . . . 1.50 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE
December 19, 2018	POS AM	ORIG / Ocean Rig UDW Inc. POS AM As filed with the Securities and Exchange Commission on December 19, 2018 Registration No.
December 7, 2018	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Elliott Associates, L.P. - OCEAN RIG UDW INC. Activist Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3) Ocean Rig UDW Inc. (Name of Issuer) Class A Common Shares, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Elliott Associates, L.P. c/o Elliott Management Corporation 40 West 57th Street New York, NY 10019 with a copy to: Eleazer Kle
December 6, 2018	POSASR	ORIG / Ocean Rig UDW Inc. POSASR As filed with the Securities and Exchange Commission on December 6, 2018 Registration No.
November 29, 2018	425	ORIG / Ocean Rig UDW Inc. 425 (Prospectus) 425 1 d8109080a425.htm Filed by Ocean Rig UDW Inc. (Commission File No. 001-35298) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURS
November 29, 2018	EX-99.1	OCEAN RIG UDW INC. SHAREHOLDERS APPROVE MERGER WITH TRANSOCEAN LTD. EX-99.1 2 d8107910ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. SHAREHOLDERS APPROVE MERGER WITH TRANSOCEAN LTD. November 29, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that its shareholders have approved the merger of the Company with Transocean Ltd. ("Tran
November 29, 2018	EX-99.1	OCEAN RIG UDW INC. SHAREHOLDERS APPROVE MERGER WITH TRANSOCEAN LTD. EX-99.1 2 d8107910ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. SHAREHOLDERS APPROVE MERGER WITH TRANSOCEAN LTD. November 29, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that its shareholders have approved the merger of the Company with Transocean Ltd. ("Tran
November 29, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d81090806-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, C
November 14, 2018	EX-99.1	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Exhibit 99.1 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Unless otherwise specified herein, references to "Ocean Rig", "UDW", the "Company", "we", "us", "our" or similar terms shall include Ocean Rig UDW Inc. and/or its subsidiaries, as applicable. The following management's discussion and analysis should be read in conjunction with our unaudited interim c
November 14, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 13, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 13, 2018	EX-99.1	OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE THIRD QUARTER 2018 EX-99.1 2 d8104046ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE THIRD QUARTER 2018 November 13, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced its unaudited financial and operating results for the quarter ended Sep
November 5, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001‑38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a‑12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001‑35298) REMINDER TO VOTE YOUR TRANSOCEAN SHARES An extraordinary general meeting of Transocean shareholders is scheduled for Thursday, November 29, 2018,
October 31, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) The following invitation to shareholders was published on October 31, 2018 in the Swiss Official Commercial Gazette INVITATION TO THE EXTRAORDINAR
October 30, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) Client Id: 77 THOMSON REUTERS STREETEVENTS EDITED TRANSCRIPT RIG - Q3 2018 Transocean Ltd Earnings Call EVENT DATE/TIME: OCTOBER 30, 2018 / 1:00PM
October 29, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) TRANSOCEAN LTD. REPORTS THIRD QUARTER 2018 RESULTS · Total contract drilling revenues were $816 million, compared with $790 million in the second
October 22, 2018	425	RIG / Transocean, Inc. 8-K (Prospectus) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 22, 2018 TRANSOCEAN LTD. (Exact name of registrant as specified in its charter) Switzerland 001-38373 98-0599916 (State or other jurisdiction of (Commission (I.R.S. Employer i
October 22, 2018	EX-99.1	TRANSOCEAN LTD. ANNOUNCES PRICING OF U.S. $750 MILLION OF EX-99.1 2 rig-20181022ex9911526da.htm EX-99.1 TRANSOCEAN LTD. ANNOUNCES PRICING OF U.S. $750 MILLION OF SENIOR UNSECURED NOTES DUE 2025 STEINHAUSEN, Switzerland – October 22, 2018 – Transocean Ltd. (NYSE: RIG) announced today that Transocean Inc., its wholly-owned subsidiary (collectively with Transocean Ltd., “Transocean”), has priced its previously-announced offering of U.S.$750 million aggregat
October 9, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) OCEAN RIG UDW INC. ANNOUNCES DATE OF EXTRAORDINARY GENERAL MEETING TO APPROVE MERGER WITH TRANSOCEAN LTD. October 9, 2018, Grand Cayman, Cayman Is
October 9, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DATE OF EXTRAORDINARY GENERAL MEETING TO APPROVE MERGER WITH TRANSOCEAN LTD. EX-99.1 2 d8082172ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DATE OF EXTRAORDINARY GENERAL MEETING TO APPROVE MERGER WITH TRANSOCEAN LTD. October 9, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that it has scheduled an extraordinary general meetin
October 9, 2018	425	ORIG / Ocean Rig UDW Inc. 425 (Prospectus) Filed by Ocean Rig UDW Inc. (Commission File No. 001-35298) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR
October 9, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DATE OF EXTRAORDINARY GENERAL MEETING TO APPROVE MERGER WITH TRANSOCEAN LTD. EX-99.1 2 d8082172aex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DATE OF EXTRAORDINARY GENERAL MEETING TO APPROVE MERGER WITH TRANSOCEAN LTD. October 9, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that it has scheduled an extraordinary general meeti
October 9, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
September 7, 2018	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Economou George Activist Investment SC 13D/A 1 d8062263sc13d-a.htm SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Amendment No. 3) Under the Securities and Exchange Act of 1934 Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) William S. Haft Orrick, Herrington & Sutcliffe LLP 51 West 52nd Street New York, NY 10019-6142 +1-212-
September 5, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) Transocean September 5, 2018 9:45 AM EDT Speaker ID 1 Page # 1 Transocean September 5, 2018 9:45 AM EDT Unidentified Participant: So, good morning
September 5, 2018	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Elliott Associates, L.P. - OCEAN RIG UDW INC. Activist Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2) Ocean Rig UDW Inc. (Name of Issuer) Class A Common Shares, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Elliott Associates, L.P. c/o Elliott Management Corporation 40 West 57th Street New York, NY 10019 with a copy to: Eleazer Kle
September 4, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) Client Id: 77 THOMSON REUTERS STREETEVENTS EDITED TRANSCRIPT RIG - Transocean Ltd. Announces Agreement to Acquire Ocean Rig EVENT DATE/TIME: SEPTE
September 4, 2018	425	ORIG / Ocean Rig UDW Inc. 425 (Prospectus) 425 1 d8049812425.htm Filed by Ocean Rig UDW Inc. (Commission File No. 001-35298) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUAN
September 4, 2018	EX-99.3	TRANSOCEAN LTD. ANNOUNCES AGREEMENT TO ACQUIRE OCEAN RIG EX-99.3 5 d8059550ex99-3.htm Exhibit 99.3 TRANSOCEAN LTD. ANNOUNCES AGREEMENT TO ACQUIRE OCEAN RIG · Enhances Transocean's position as the leader in ultra-deepwater and harsh environment drilling; · Adds nine high-specification ultra-deepwater drillships, two harsh environment semisubmersibles, and two high-specification ultra-deepwater drillships currently under construction; · Results in a combi
September 4, 2018	EX-99.1	VOTING AND SUPPORT AGREEMENT EX-99.1 3 d8059550ex99-1.htm Exhibit 99.1 Exhibit A – Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this "Agreement"), is dated as of [?], 2018, by and among Transocean Ltd., a Swiss corporation ("Parent"), and the shareholders of Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the "Company"
September 4, 2018	EX-99.2	VOTING AND SUPPORT AGREEMENT EX-99.2 4 d8059550ex99-2.htm Exhibit 99.2 Exhibit B - Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this "Agreement"), is dated as of [?], 2018, by and among Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the "Company"), and the shareholder of Transocean Ltd., a Swiss corporation ("Parent")
September 4, 2018	EX-2.1	Agreement and Plan of Merger, dated September 3, 2018, by and among Transocean Ltd., Transocean Oceanus Holdings Limited, Transocean Oceanus Limited and Ocean Rig UDW Inc. EX-2.1 2 d8049812ex2-1.htm Exhibit 2.1 AGREEMENT AND PLAN OF MERGER dated as of September 3, 2018 by and among OCEAN RIG UDW INC., TRANSOCEAN LTD., TRANSOCEAN OCEANUS HOLDINGS LIMITED and TRANSOCEAN OCEANUS LIMITED TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS 6 Section 1.01 Definitions 6 Section 1.02 Other Definitional and Interpretative Provisions 19 ARTICLE 2 THE MERGER 20 Section 2.01 The Merge
September 4, 2018	EX-2.1	Agreement and Plan of Merger, dated September 3, 2018, by and among Transocean Ltd., Transocean Oceanus Holdings Limited, Transocean Oceanus Limited and Ocean Rig UDW Inc. EX-2.1 2 d8049812ex2-1.htm Exhibit 2.1 AGREEMENT AND PLAN OF MERGER dated as of September 3, 2018 by and among OCEAN RIG UDW INC., TRANSOCEAN LTD., TRANSOCEAN OCEANUS HOLDINGS LIMITED and TRANSOCEAN OCEANUS LIMITED TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS 6 Section 1.01 Definitions 6 Section 1.02 Other Definitional and Interpretative Provisions 19 ARTICLE 2 THE MERGER 20 Section 2.01 The Merge
September 4, 2018	EX-99.3	TRANSOCEAN LTD. ANNOUNCES AGREEMENT TO ACQUIRE OCEAN RIG Exhibit 99.3 TRANSOCEAN LTD. ANNOUNCES AGREEMENT TO ACQUIRE OCEAN RIG · Enhances Transocean's position as the leader in ultra-deepwater and harsh environment drilling; · Adds nine high-specification ultra-deepwater drillships, two harsh environment semisubmersibles, and two high-specification ultra-deepwater drillships currently under construction; · Results in a combined fleet of 57 floaters, wit
September 4, 2018	EX-99.2	VOTING AND SUPPORT AGREEMENT EX-99.2 4 d8059550ex99-2.htm Exhibit 99.2 Exhibit B - Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this "Agreement"), is dated as of [?], 2018, by and among Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the "Company"), and the shareholder of Transocean Ltd., a Swiss corporation ("Parent")
September 4, 2018	EX-99.1	VOTING AND SUPPORT AGREEMENT EX-99.1 3 d8059550ex99-1.htm Exhibit 99.1 Exhibit A – Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this "Agreement"), is dated as of [?], 2018, by and among Transocean Ltd., a Swiss corporation ("Parent"), and the shareholders of Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the "Company"
September 4, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 4, 2018	EX-99.2	Transocean Announces Acquisition of Ocean Rig September 4, 2018 Exhibit 99.2 Transocean Announces Acquisition of Ocean Rig September 4, 2018 LEGAL DISCLAIMER Forward-Looking Statements The statements described in this presentation that are not historical facts are 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. These statements contain wo
September 4, 2018	EX-2.1	Agreement and Plan of Merger, dated September 3, 2018, by and among Transocean Ltd., Transocean Oceanus Holdings Limited, Transocean Oceanus Limited and Ocean Rig UDW Inc. EX-2.1 2 ex-2d1.htm EX-2.1 Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER dated as of September 3, 2018 by and among OCEAN RIG UDW INC., TRANSOCEAN LTD., TRANSOCEAN OCEANUS HOLDINGS LIMITED and TRANSOCEAN OCEANUS LIMITED TABLE OF CONTENTS PAGE ARTICLE 1 DEFINITIONS 7 Section 1.01 Definitions 7 Section 1.02 Other Definitional and Interpretative Provisions 17 ARTICLE 2 THE MERGER 18 Sect
September 4, 2018	EX-10.1	Form of Voting and Support Agreement, by and among Transocean Ltd. and certain shareholders of Ocean Rig UDW Inc. EX-10.1 3 ex-10d1.htm EX-10.1 Exhibit 10.1 Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”), is dated as of [], 2018, by and among Transocean Ltd., a Swiss corporation (“Parent”), and the shareholders of Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the “Company”), listed o
September 4, 2018	425	RIG / Transocean, Inc. 425 (Prospectus) 425 1 f425.htm 425 Filed by Transocean Ltd. (Commission File No. 001-38373) Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed und Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Ocean Rig UDW Inc. (Commission File No. 001-35298) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)
September 4, 2018	EX-99.1	1 EX-99.1 5 ex-99d1.htm EX-99.1 Exhibit 99.1 TRANSOCEAN LTD. ANNOUNCES AGREEMENT TO ACQUIRE OCEAN RIG · Enhances Transocean’s position as the leader in ultra-deepwater and harsh environment drilling; · Adds nine high-specification ultra-deepwater drillships, two harsh environment semisubmersibles, and two high-specification ultra-deepwater drillships currently under construction; · Results in a comb
September 4, 2018	EX-10.2	Form of Voting and Support Agreement, by and among Ocean Rig UDW Inc. and certain shareholders of Transocean Ltd. Exhibit 10.2 Final Form of Agreement VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”), is dated as of [], 2018, by and among Ocean Rig UDW Inc., an exempted company incorporated with limited liability under the laws of the Cayman Islands (the “Company”), and the shareholder of Transocean Ltd., a Swiss corporation (“Parent”), listed on the signature pages hereto (t
August 9, 2018	EX-99.1	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS EX-99.1 2 d8046524ex99-1.htm Exhibit 99.1 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Unless otherwise specified herein, references to "Ocean Rig", "UDW", the "Company", "we", "us", "our" or similar terms shall include Ocean Rig UDW Inc. and/or its subsidiaries, as applicable. The following management's discussion and analysis should be read in conjunction
August 9, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d80465236-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cay
August 8, 2018	EX-99.1	OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE SECOND QUARTER 2018 EX-99.1 2 d8046309ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE SECOND QUARTER 2018 August 8, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced its unaudited financial and operating results for the quarter ended June
August 8, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d80463096-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cay
July 23, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES UPDATES TO RIG EMPLOYMENT Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES UPDATES TO RIG EMPLOYMENT July 23, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced certain updates with respect to its rig employment status: · The Company has entered into a new drilling contract with Chariot Oil & Ga
July 23, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d79561386-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayma
June 29, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES AGREEMENT TO POSTPONE DELIVERY OF NEWBUILDING DRILLSHIP OCEAN RIG CRETE Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES AGREEMENT TO POSTPONE DELIVERY OF NEWBUILDING DRILLSHIP OCEAN RIG CRETE June 29, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that its subsidiary that is party to the shipbuilding contract for the construction of it
June 29, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
June 25, 2018	EX-99.1	OCEAN RIG UDW INC JOINS THE RUSSELL 3000Ò INDEX Exhibit 99.1 OCEAN RIG UDW INC JOINS THE RUSSELL 3000Ò INDEX June 25, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that it has joined the broad-market Russell 3000Ò Index at the conclusion of the Russell US Indexes annual reconstitution, effective after the
June 25, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d79338646-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayma
June 11, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES WITHDRAWAL OF OFFERING OF COMMON SHARES BY ITS SUBSIDIARY Exhibit 99.1
June 11, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
May 29, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES OFFERING OF COMMON SHARES BY ITS SUBSIDIARY Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES OFFERING OF COMMON SHARES BY ITS SUBSIDIARY May 28, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced the launch of an offering of common shares by its wholly-owned Marshall Islands subsidiary, Valiant Offshore Inc., ("V
May 29, 2018	EX-99.2	VALIANT OFFSHORE INC.Investor PresentationEquity Offering of USD 175m 28 May 2018 This presentation dated 28 May 2018 (the “Presentation”) has been produced by Valiant Offshore Inc. (the “Company” or “Valiant Offshore”), for use in its dialogue with Exhibit 99.2 VALIANT OFFSHORE INC.Investor PresentationEquity Offering of USD 175m 28 May 2018 This presentation dated 28 May 2018 (the “Presentation”) has been produced by Valiant Offshore Inc. (the “Company” or “Valiant Offshore”), for use in its dialogue with potential investors in a contemplated equity offering of new shares by the Company (the “New Shares”) to Norwegian investors, internation
May 29, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d79025896-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman
May 17, 2018	EX-99.1	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Exhibit 99.1 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Unless otherwise specified herein, references to "Ocean Rig" or the "Company" or "we" shall include Ocean Rig UDW Inc. or "UDW" and its applicable subsidiaries. The following management's discussion and analysis should be read in conjunction with our unaudited interim condensed consolidated financial
May 17, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of p
May 16, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of p
May 16, 2018	EX-99.1	OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE FIRST QUARTER 2018 Exhibit 99.1 OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE FIRST QUARTER 2018 May 16, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced its unaudited financial and operating results for the quarter ended March 31, 2018. First Quarter 2018 Fi
April 23, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES AGREEMENT TO POSTPONE DELIVERY OF NEWBUILDING DRILLSHIP OCEAN RIG SANTORINI Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES AGREEMENT TO POSTPONE DELIVERY OF NEWBUILDING DRILLSHIP OCEAN RIG SANTORINI April 23, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that its subsidiary that is party to the shipbuilding contract for the construction
April 23, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d78758556-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Caym
April 16, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
April 16, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES AUTHORIZATION OF AN UP TO $150 MILLION STOCK REPURCHASE PLAN Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES AUTHORIZATION OF AN UP TO $150 MILLION STOCK REPURCHASE PLAN Grand Cayman, Cayman Islands – April 16, 2018 - Ocean Rig UDW Inc. (NASDAQ:ORIG) ("Ocean Rig" or the "Company"), a global provider of offshore deepwater drilling services, announced today that its Board of Directors (the "Board") has authorized a stock repurchase plan (the "Plan"), under which th
March 21, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES $100 MILLION PREPAYMENT OF $450 MILLION SENIOR SECURED CREDIT FACILITY Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES $100 MILLION PREPAYMENT OF $450 MILLION SENIOR SECURED CREDIT FACILITY Grand Cayman, Cayman Islands – March 21, 2018 - Ocean Rig UDW Inc. (NASDAQ:ORIG) ("Ocean Rig" or the "Company"), a global provider of offshore deepwater drilling services, announced today that it has prepaid $100 million of its $450 million Senior Secured Term Loan Facility (the "Term L
March 21, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
March 19, 2018	EX-4.5	Form of Senior Indenture Exhibit 4.5 OCEAN RIG UDW INC. FORM OF SENIOR INDENTURE Dated as of [ ], 20[ ] [ ] Trustee TABLE OF CONTENTS ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 1 SECTION 1.01. Definitions. 1 SECTION 1.02. Other Definitions. 5 SECTION 1.03. Incorporation by Reference of Trust Indenture Act. 5 SECTION 1.04. Rules of Construction. 6 ARTICLE II THE SECURITIES 6 SECTION 2.01. Issuable in Series. 6 SE
March 19, 2018	EX-4.6	Form of Subordinated Indenture Exhibit 4.6 OCEAN RIG UDW INC. FORM OF SUBORDINATED INDENTURE Dated as of [ ], 20[ ] [ ] Trustee TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 1 SECTION 1.01. Definitions. 1 SECTION 1.02. Other Definitions. 5 SECTION 1.03. Incorporation by Reference of Trust Indenture Act. 5 SECTION 1.04. Rules of Construction. 6 ARTICLE II THE SECURITIES 6 SECTION 2.01. Issuable in S
March 19, 2018	F-3ASR	ORIG / Ocean Rig UDW Inc. F-3ASR F-3ASR 1 d7827262f-3.htm As filed with the Securities and Exchange Commission on March 19, 2018. Registration Statement No. 333- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OCEAN RIG UDW INC. (Exact name of registrant as specified in its charter) Cayman Islands N/A (State or other jurisdiction of incorporation or organi
March 15, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF 2017 ANNUAL REPORT ON FORM 20-F Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF 2017 ANNUAL REPORT ON FORM 20-F Grand Cayman, Cayman Islands – March 15, 2018 - Ocean Rig UDW Inc. (NASDAQ:ORIG) ("Ocean Rig"), a global provider of offshore deepwater drilling services, announced today that its annual report on Form 20-F for the year ended December 31, 2017 (the "Annual Report") has been filed with the U.S. Securities and
March 15, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d78451176-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Caym
March 15, 2018	EX-4.49	Waiver and Amendment No. 2 of Credit Agreement, by and among Drillship Hydra Owners Inc., Drillship ParosOwners Inc., Drillship Kithira Owners Inc., Drillship Skopelos Owners Inc., Drillship Skiathos Owners Inc., Drillship Skyros Owners Inc., Drillship Kythnos Owners Inc., Agon Shipping Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drillships Ventures Projects Inc., Drillships Projects Inc., Drill Rigs Holdings Inc., Ocean Rig 1 Inc. and Ocean Rig 2 Inc., as Borrowers, and Ocean Rig UDW Inc., as Parent and the Lenders party thereto, dated January 5, 2018, Exhibit 4.49 Execution Version WAIVER AND AMENDMENT NO.2 OF CREDIT AGREEMENT WAIVER AND AMENDMENT NO. 2 OF CREDIT AGREEMENT (this "Amendment") is entered into as of January 5, 2018, by and among Drillship Hydra Owners Inc. ("Hydra"), Drillship Paros Owners Inc., ("Paros"), Drillship Kithira Owners Inc., ("Kithira"), Drillship Skopelos Owners Inc. ("Skopelos"), Drillship Skiathos Owners Inc. ("Skia
March 15, 2018	EX-4.32	Management Services Agreement by and between Ocean Rig 1 Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.32 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between OCEAN RIG 1 INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. MANAGER'S RI
March 15, 2018	EX-4.50	Letter Terminating the Existing Management Services Agreement between Ocean Rig UDW Inc. and TMS Offshore Services Ltd., from Ocean Rig UDW Inc. to Mare Services Limited, dated September 22, 2017. EX-4.50 22 d7841884ex4-50.htm Exhibit 4.50 Execution Version OCEAN RIG UDW INC. Dr. Renato Cefai Director of MARE SERVICES LIMITED Sole Director of TMS OFFSHORE SERVICES LTD. c/o CEFAI & ASSOCIATES 5/1 Merchants Street Valletta, Malta 22 September 2017 Dear Dr. Cefai, Termination of Management Services Agreement dated 31 March 2016 (as amended pursuant to the Addendum No. 1 dated 16 January 2017)
March 15, 2018	EX-4.47	Fifth Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated May 31, 2017. Exhibit 4.47 Execution Version FIFTH AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS AMENDMENT (this "Amendment"), dated as of May 31, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 and as amended from time to time, among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Cred
March 15, 2018	EX-4.46	Fourth Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated May 17, 2017. Exhibit 4.46 Execution Version FOURTH AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS AMENDMENT (this "Amendment"), dated as of May 17, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 and as amended from time to time, among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Cre
March 15, 2018	EX-4.33	Management Services Agreement by and between Drillship Alonissos Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.33 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP ALONISSOS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 1
March 15, 2018	EX-12.2	Rule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer. Exhibit 12.2 CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER I, Iraklis Sbarounis, certify that: 1. I have reviewed this annual report on Form 20-F of Ocean Rig UDW Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements wer
March 15, 2018	EX-4.48	Second Waiver and Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated September 21, 2017. Exhibit 4.48 Execution Version SECOND WAIVER AND AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS WAIVER (this "Waiver"), dated as of September 21, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017, among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Creditors (as amended, su
March 15, 2018	EX-12.1	Rule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer. Exhibit 12.1 CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER I, Pankaj Khanna, certify that: 1. I have reviewed this annual report on Form 20-F of Ocean Rig UDW Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma
March 15, 2018	20-F	ORIG / Ocean Rig UDW Inc. 20-F UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report: Not applicable Commission file number 001-35298 OCEAN RIG UDW INC.
March 15, 2018	EX-1.1	Second Amended and Restated Memorandum and Articles of Association of Ocean Rig UDW Inc. Exhibit 1.1 Registrar of Companies Government Administration Building 133 Elgin Avenue George Town Grand Cayman Ocean Rig UDW Inc. (ROC #310396) (the "Company") TAKE NOTICE that by minutes of the extraordinary general meeting of the shareholders of the Company dated 3 November 2017, the following special resolutions were passed: RESOLVED as an Enhanced Special Resolution pursuant to the current Am
March 15, 2018	EX-4.31	Management Services Agreement by and between Ocean Rig 2 Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.31 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between OCEAN RIG 2 INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. MANAGER'S RI
March 15, 2018	EX-4.40	Management Services Agreement by and between Drillship Kithira Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.40 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP KITHIRA OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10.
March 15, 2018	EX-4.34	Management Services Agreement by and between Drillship Kythnos Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.34 DATED September 22 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP KYTHNOS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. MANAGER'S RIGHT TO
March 15, 2018	EX-4.37	Management Services Agreement by and between Drillship Skiathos Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.37 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP SKIATHOS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10
March 15, 2018	EX-4.43	Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated April 7, 2017. Exhibit 4.43 Execution Copy AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS AMENDMENT (this "Amendment"), dated as of April 7, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Creditors (the "RSA") is made among Parent and
March 15, 2018	EX-4.36	Management Services Agreement by and between Drillship Skopelos Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.36 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP SKOPELOS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10
March 15, 2018	EX-4.39	Management Services Agreement by and between Agon Shipping Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.39 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between AGON SHIPPING INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. MANAGER'S
March 15, 2018	EX-4.35	Management Services Agreement by and between Drillship Hydra Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.35 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP HYDRA OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. M
March 15, 2018	EX-4.44	Second Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated April 21, 2017. Exhibit 4.44 EXECUTION VERSION SECOND AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS AMENDMENT (this "Amendment"), dated as of April 21, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Creditors (the "RSA") is made among
March 15, 2018	EX-4.42	Global Settlement Agreement by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc., dated March 17, 2017. EX-4.42 14 d7841778ex4-42.htm Exhibit 4.42 THIS DEED is dated 17 March 2017 (the "Effective Date") and made between: PARTIES (1) OCEAN RIG UDW INC., a corporation registered by way of continuation in the Cayman Islands with its registered address at PO Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands and with registration number MC-310396 ("UDW"), on its own behalf and on behalf of al
March 15, 2018	EX-4.45	Third Amendment to the Restructuring Support Agreement, by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., and Drill Rigs Holdings Inc. and the Supporting Creditors named therein, dated May 8, 2017. Exhibit 4.45 Execution Version THIRD AMENDMENT TO THE RESTRUCTURING SUPPORT AGREEMENT THIS AMENDMENT (this "Amendment"), dated as of May 8, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 and as amended from time to time, among Ocean Rig UDW Inc. ("Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Credi
March 15, 2018	EX-4.38	Management Services Agreement by and between Drillship Paros Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.38 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP PAROS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10. M
March 15, 2018	EX-13.1	Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Exhibit 13.1 PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 In connection with this Annual Report of Ocean Rig UDW Inc. (the "Company") on Form 20-F for the year ended December 31, 2017 as filed with the Securities and Exchange Commission (the "SEC") on or about the date hereof (the "Report"), I, Pankaj Khanna, President and Chief Executive Officer of the Company, cer
March 15, 2018	EX-4.41	Management Services Agreement by and between Drillship Skyros Owners Inc., as the Owner, and TMS Offshore Services Ltd., as the Manager, dated September 22, 2017. Exhibit 4.41 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT between DRILLSHIP SKYROS OWNERS INC. and TMS OFFSHORE SERVICES LTD. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 2 3. AUTHORITY OF THE MANAGER 2 4. MANAGEMENT SERVICES 2 5. MANAGER'S OBLIGATIONS 3 6. OWNER'S OBLIGATIONS 3 7. INSURANCE POLICIES 3 8. FEES AND EXPENSES 4 9. [RESERVED] 5 10.
March 15, 2018	EX-13.2	Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Exhibit 13.2 PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 In connection with this Annual Report of Ocean Rig UDW Inc. (the "Company") on Form 20-F for the year ended December 31, 2017 as filed with the Securities and Exchange Commission (the "SEC") on or about the date hereof (the "Report"), I, Iraklis Sbarounis, Chief Financial Officer of the Company, certify, purs
March 15, 2018	EX-4.51	Escrow Agreement, by and among Ocean Rig UDW Inc., as Depositor, each of the subsidiaries listed as a party thereto, TMS Offshore Services Ltd., and MaplesFS Limited, as Escrow Agent, dated September 20, 2017. Exhibit 4.51 This Escrow Agreement is dated 20th day of September 2017 (the "Effective Date") Between: (1) Ocean Rig UDW Inc., a company registered by way of continuation as an exempted company in the Cayman Islands with its registered office at PO 309, Ugland House, South Church Street, Grand Cayman, Cayman Islands (the "Depositor"); (2) Each of the subsidiaries of the Depositor listed on Schedul
March 5, 2018	424B3	Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 7 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 7 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplement no. 7 is not complete
March 5, 2018	6-K	ORIG / Ocean Rig UDW Inc. 6-K (Current Report of Foreign Issuer) 6-K 1 d78369036-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Caym
March 5, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THE RESULTS OF ITS 2018 ANNUAL GENERAL MEETING OF SHAREHOLDERS Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THE RESULTS OF ITS 2018 ANNUAL GENERAL MEETING OF SHAREHOLDERS March 5, 2018 – Grand Cayman, Cayman Islands – Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, announced today the results of its 2018 Annual General Meeting of Shareholders (the "Meeting"). The following resolutions w
February 26, 2018	424B3	Common Shares Ocean Rig UDW Inc. 424B3 1 d7830860424b3.htm Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 6 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 6 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplem
February 26, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES NEW DRILLING CONTRACT FOR THE OCEAN RIG POSEIDON Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES NEW DRILLING CONTRACT FOR THE OCEAN RIG POSEIDON February 26, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced that it has signed a new drilling contract with Tullow Namibia Ltd., for a one-well drilling program plus op
February 26, 2018	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
February 20, 2018	424B3	Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 5 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 5 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplement no. 5 is not complete
February 20, 2018	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) 6-K 1 d78268676-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, C
February 20, 2018	EX-99.1	OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE FOURTH QUARTER 2017 Exhibit 99.1 OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE FOURTH QUARTER 2017 February 20, 2018, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced its unaudited financial and operating results for the quarter ended December 31, 2017. Fourth Quart
February 16, 2018	SC 13G	ORIG / Ocean Rig UDW Inc. / Oz Management LP - SCHEDULE 13G Passive Investment Schedule 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (Amendment No. )* Ocean Rig UDW Inc. (Name of Issuer) Class A Common Stock, $.01 par value per share (Title of Class of Securities) G66964118 (CUSIP Number) February
February 15, 2018	SC 13G	ORIG / Ocean Rig UDW Inc. / PACIFIC INVESTMENT MANAGEMENT CO LLC - SC 13G Passive Investment OMB APPROVAL UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB Number: 3235-0145 Estimated average burden hours per response. . . . . . . . . . .10.4 SCHEDULE 13G INFORMATION STATEMENT TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b) (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (b) Ocean Rig UDW Inc. (Name of Issuer) Class A Common Stock (
February 14, 2018	EX-99.1	OCEAN RIG UDW INC. NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MARCH 5, 2018 Exhibit 99.1 February 14, 2018 TO THE SHAREHOLDERS OF OCEAN RIG UDW INC.: Enclosed is a Notice of the 2018 Annual General Meeting of Shareholders (the "Meeting") of Ocean Rig UDW Inc. (the "Company"), which will be held at 3 rd Floor, Flagship Building, Harbour Drive, Grand Cayman, Cayman Islands on Monday, March 5, 2018 at 9:00am, local time, and related materials. The Notice of the 2018 Annual G
February 14, 2018	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
February 14, 2018	EX-99.2	EX-99.2 Exhibit 99.2
February 14, 2018	SC 13G/A	ORIG / Ocean Rig UDW Inc. / HIGHLAND CAPITAL MANAGEMENT FUND ADVISORS, L.P. - SC 13 Passive Investment SC 13 SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A (Rule 13d-102) (Amendment No.
February 14, 2018	SC 13G	ORIG / Ocean Rig UDW Inc. / CANYON CAPITAL ADVISORS LLC - CANYON CAPITAL ADVISORS LLC Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Ocean Rig UDW Inc (Name of Issuer) Common Stock (Title of Class of Securities) G66964118** (CUSIP Number) December 31, 2017 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X]
January 30, 2018	424B3	Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 4 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 4 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplement no. 4 is not complete
January 30, 2018	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DAY OF 2018 ANNUAL GENERAL MEETING OF SHAREHOLDERS Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DAY OF 2018 ANNUAL GENERAL MEETING OF SHAREHOLDERS Grand Cayman, Cayman Islands ? January 30, 2018 ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, today announced that the Company's 2018 Annual General Meeting of Shareholders (the "Annual Meeting") will be held at 3rd Floor, Fla
January 30, 2018	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2018 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
December 29, 2017	424B3	Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 3 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 3 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplement no. 3 is not complete
December 29, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES MANAGEMENT CHANGES Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES MANAGEMENT CHANGES December 29, 2017 ? Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, announced today the following management changes: ? Mr. Pankaj Khanna has been appointed as President and Chief Executive Officer of the Company effective January
December 29, 2017	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 16, 2017	424B3	Common Shares Ocean Rig UDW Inc. 424B3 1 d7738375424b-3.htm Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 2 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 2 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supple
November 16, 2017	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 15, 2017	424B3	Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(3) Registration No. 333-220668 PROSPECTUS SUPPLEMENT NO. 1 Common Shares Ocean Rig UDW Inc. This prospectus supplement no. 1 supplements the prospectus, dated October 12, 2017, relating to the resale, from time to time, of the common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified therein. This prospectus supplement no. 1 is not complete
November 15, 2017	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 15, 2017	EX-99.1	OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE THIRD QUARTER 2017 Exhibit 99.1 OCEAN RIG UDW INC. REPORTS FINANCIAL AND OPERATING RESULTS FOR THE THIRD QUARTER 2017 November 15, 2017, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG), ("Ocean Rig" or the "Company"), an international contractor of offshore deepwater drilling services, today announced its unaudited financial and operating results for the quarter ended September 30, 2017. Third Quarte
November 13, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THIRD QUARTER 2017 RESULTS RELEASE DATE, CONFERENCE CALL AND WEBCAST Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THIRD QUARTER 2017 RESULTS RELEASE DATE, CONFERENCE CALL AND WEBCAST November 10, 2017, Grand Cayman, Cayman Islands - Ocean Rig UDW Inc. (NASDAQ:ORIG) ("Ocean Rig" or "UDW" or the "Company"), an international contractor of offshore deepwater drilling services, announced today that it will release its results for the third quarter 2017 after the market clo
November 13, 2017	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 3, 2017	6-K	ORIG / Ocean Rig UDW Inc. (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
November 3, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THE RESULTS OF ITS 2017 EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THE RESULTS OF ITS 2017 EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS November 3, 2017 – Grand Cayman, Cayman Islands – Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, announced today the results of its 2017 Extraordinary General Meeting of Shareholders (the "Meeting"). The follow
October 19, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
October 19, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES WITHDRAWAL OF WINDING UP PETITION OCEAN RIG UDW INC. ANNOUNCES WITHDRAWAL OF WINDING UP PETITION ? Joint provisional liquidators of UDW, DFH, DOV and DRH have been discharged pursuant to an Order of the Grand Court of the Cayman Islands. ? The winding up petitions of UDW, DFH, DOV, DRH have been withdrawn. October 18, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ:ORIG) (" Ocean Rig" or " UDW" or the " Company"),
October 17, 2017	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Avenue Capital Management II, L.P. - SC 13D/A Activist Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Eric Ross Senior Managing Director and Chief Compliance Officer Avenue Capital Group 399 Park Avenue, 6th Floor New York, N
October 16, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES NEW DRILLING CONTRACT AND INCREASED CONTRACT BACKLOG Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES NEW DRILLING CONTRACT AND INCREASED CONTRACT BACKLOG October 13, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig" or " UDW" or the " Company") an international contractor of offshore deepwater drilling services, today announced that it has signed a new drilling contract with Statoil, for a one-well drilling program offsh
October 16, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) 6-K 1 d76838426-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Ca
October 16, 2017	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Elliott Associates, L.P. - ELLIOTT ASSOCIATES, L.P. Activist Investment SC 13D/A 1 p17-2046sc13da.htm ELLIOTT ASSOCIATES, L.P. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Elliott Associates, L.P. c/o Elliott Management Corporation 40 West 57th Street
October 16, 2017	SC 13D/A	ORIG / Ocean Rig UDW Inc. / BlueMountain Capital Management, LLC - SC 13D/A Activist Investment SC 13D/A 1 formsc13da.htm SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* OCEAN RIG UDW INC. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Eric M. Albert BlueMountain Capital Management, LLC 280 Park Avenue, 12th Floor New York, New York 10
October 16, 2017	EX-99.1	JOINT FILING AGREEMENT Exhibit 1 JOINT FILING AGREEMENT The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.
October 13, 2017	424B4	35,260,089 Common Shares Ocean Rig UDW Inc. Filed Pursuant to 424(b)(4) Registration No. 333-220668 PROSPECTUS 35,260,089 Common Shares Ocean Rig UDW Inc. This prospectus relates to the resale, from time to time, of up to 35,260,089 common shares of Ocean Rig UDW Inc., being offered by the selling shareholders identified herein. The selling shareholders may sell their shares, from time to time, in one or more offerings, at prevailing market
October 11, 2017	CORRESP	ORIG / Ocean Rig UDW Inc. ESP OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands October 11, 2017 BY EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: Ocean Rig UDW Inc. Registration Statement on Form F-1 (No. 333-220668) Ladies and Gentlemen: The undersigned
October 10, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DISCHARGE OF JOINT PROVISIONAL LIQUIDATORS Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DISCHARGE OF JOINT PROVISIONAL LIQUIDATORS ? The Grand Court of the Cayman Islands has issued an order discharging the joint provisional liquidators of UDW, DFH, DOV and DRH. October 9, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ:ORIG) (" Ocean Rig " or " UDW " or the " Company "), an international contractor of offshore deepwater drill
October 10, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
October 10, 2017	F-1/A	As filed with the Securities and Exchange Commission on October 10, 2017 As filed with the Securities and Exchange Commission on October 10, 2017 Registration No.
October 5, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
October 5, 2017	EX-99.1	OCEAN RIG UDW INC. NOTICE OF EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON NOVEMBER 3, 2017 Exhibit 99.1 October 5, 2017 TO THE SHAREHOLDERS OF OCEAN RIG UDW INC.: Enclosed is a Notice of an Extraordinary General Meeting of Shareholders (the " Meeting") of Ocean Rig UDW Inc. (the " Company"), which will be held at 3 rd Floor Flagship Building, Harbour Drive, Grand Cayman, Cayman Islands on Friday, November 3, 2017 at 9:00am, local time, and related materials. The Notice of the Extraordin
October 5, 2017	EX-99.2	EX-99.2 Exhibit 99.2
October 5, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address
October 5, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF COMPANY UPDATE PRESENTATION Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES AVAILABILITY OF COMPANY UPDATE PRESENTATION October 4, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig" or " UDW" or the " Company") an international contractor of offshore deepwater drilling services, today announced that it has posted a Company Update Presentation on the Ocean Rig website, www.ocean-rig.com, at the Inv
October 2, 2017	SC 13D	ORIG / Ocean Rig UDW Inc. / Elliott Associates, L.P. Activist Investment SC 13D 1 p17-1990sc13d.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964100 (CUSIP Number) Elliott Associates, L.P. c/o Elliott Management Corporation 40 West 57th Street New York, NY 10019 with a copy to: Eleazer Klein
October 2, 2017	SC 13D	ORIG / Ocean Rig UDW Inc. / Avenue Capital Management II, L.P. - SC 13D Activist Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Eric Ross Senior Managing Director and Chief Compliance Officer Avenue Capital Group 399 Park Avenue, 6th Floor New York, NY 10022 (212) 850-
September 29, 2017	SC 13D	ORIG / Ocean Rig UDW Inc. / BlueMountain Capital Management, LLC - SC 13D Activist Investment SC 13D SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* OCEAN RIG UDW INC. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964118 (CUSIP Number) Eric M. Albert BlueMountain Capital Management, LLC 280 Park Avenue, 12th Floor New York, New York 10017 212-905-5647 (Name, Addre
September 29, 2017	SC 13D/A	ORIG / Ocean Rig UDW Inc. / Economou George Activist Investment SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Amendment No.
September 29, 2017	EX-1	JOINT FILING AGREEMENT EX-1 Exhibit 1 JOINT FILING AGREEMENT The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.
September 27, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 27, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES FAVORABLE NASDAQ COMPLIANCE DETERMINATION Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES FAVORABLE NASDAQ COMPLIANCE DETERMINATION September 27, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig" or " UDW" or the " Company") an international contractor of offshore deepwater drilling services, today announced that it has received formal notice from The Nasdaq Stock Market ("Nasdaq") that it has demonstrated com
September 27, 2017	EX-21.1	Subsidiaries of Ocean Rig UDW Inc Exhibit 21.1 LIST OF OCEAN RIG UDW INC. SUBSIDIAIRES Name of Subsidiary Jurisdiction of Incorporation Drill Rigs Holdings Inc. Marshall Islands Ocean Rig 1 Shareholders Inc. Marshall Islands Ocean Rig 1 Inc. Marshall Islands Ocean Rig 1 Greenland Operations Inc. Marshall Islands Ocean Rig Falkland Operations Inc. Marshall Islands Ocean Rig West Africa Operations Inc. Marshall Islands Ocean Rig 2 S
September 27, 2017	F-1	As filed with the Securities and Exchange Commission on September 27, 2017 As filed with the Securities and Exchange Commission on September 27, 2017 Registration No.
September 22, 2017	EX-10.2	Intercreditor Agreement by and among Ocean Rig UDW Inc., as Parent, the subsidiaries of Ocean Rig UDW Inc. parties thereto as Second Lien Borrowers, the Lenders Party thereto and Deutsche Bank AG New York Brank as Second Lien Collateral Agent, dated September 22, 2017 incorporated by reference to Exhibit 10.2 to the Company's Report on Form 6-K dated September 22, 2017. Exhibit 10.2 EXECUTION VERSION INTERCREDITOR AGREEMENT This INTERCREDITOR AGREEMENT (this "Agreement") is made as of the 22 day of September 2017, by and among OCEAN RIG UDW INC. (the "Parent"), DRILLSHIP HYDRA OWNERS INC. ("Hydra"), DRILLSHIP PAROS OWNERS INC. ("Paros"), DRILLSHIP KITHIRA OWNERS INC. ("Kithira"), DRILLSHIP SKOPELOS OWNERS INC. ("Skopelos"), DRILLSHIP SKIATHOS OWNERS INC. ("Skiath
September 22, 2017	EX-10.3	Form of Governance Agreement signed Ocean Rig UDW Inc. and certain shareholders of the Company in connection with the Company's restructuring, dated September 22, 2017, incorporated by reference to Exhibit 10.3 to the Company's Report on Form 6-K dated September 22, 2017. Exhibit 10.3 EXECUTION VERSION OCEAN RIG UDW INC. GOVERNANCE AGREEMENT DATED AS OF SEPTEMBER , 2017 TABLE OF CONTENTS Page ARTICLE 1. DEFINITIONS; RULES OF INTERPRETATION 1 Section 1.1 Definitions 1 Section 1.2 Rules of Interpretation 7 ARTICLE 2. CORPORATE GOVERNANCE 8 Section 2.1 Exculpation 8 Section 2.2 Indemnification Agreement 8 Section 2.3 Voting 8 Section 2.4 Further Assurances 8 ARTICLE 3
September 22, 2017	EX-10.1	Credit Agreement by and among Ocean Rig UDW Inc., as Parent, the subsidiaries of Ocean Rig UDW Inc. parties thereto as Borrowers, the Lenders Party thereto and Deutsche Bank AG New York Brank as Administrative Agent and Collateral Agent in the amount of $450 million, dated September 22, 2017 incorporated by reference to Exhibit 10.1 to the Company's Report on Form 6-K dated September 22, 2017. Exhibit 10.1 EXECUTION COPY CREDIT AGREEMENT among DRILLSHIP HYDRA OWNERS INC., DRILLSHIP PAROS OWNERS INC., DRILLSHIP KITHIRA OWNERS INC., DRILLSHIP SKOPELOS OWNERS INC., DRILLSHIP SKIATHOS OWNERS INC., DRILLSHIP SKYROS OWNERS INC., DRILLSHIP KYTHNOS OWNERS INC., AGON SHIPPING INC., DRILLSHIPS FINANCING HOLDING INC., DRILLSHIPS OCEAN VENTURES INC., DRILLSHIPS VENTURES PROJECTS INC., DRILLSHIPS PR
September 22, 2017	6-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-3529 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 22, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THE COMPLETION OF ITS RESTRUCTURING AND THE OCCURRENCE OF THE RESTRUCTURING EFFECTIVE DATE Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THE COMPLETION OF ITS RESTRUCTURING AND THE OCCURRENCE OF THE RESTRUCTURING EFFECTIVE DATE · Restructuring Effective Date has occurred. · Details of Reverse Stock Split and details of Share Capital announced. · All Restructuring Documents including the New Credit Facility, the Management Services Agreement and the Governance Agreements become effective. ·
September 22, 2017	EX-10.4	Management Services Agreement by and among Ocean Rig UDW Inc., the Subsidiaries party thereto and TMS Offshore Services Ltd. dated September 22, 2017, incorporated by reference to Exhibit 10.4 to the Company's Report on Form 6-K dated September 22, 2017. Exhibit 10.4 EXECUTION VERSION DATED September 22, 2017 MANAGEMENT SERVICES AGREEMENT Ocean Rig UDW Inc. The Subsidiaries party hereto TMS Offshore Services Ltd. CONTENTS Clause Page 1. DEFINITIONS 1 2. COMMENCEMENT AND APPOINTMENT 4 3. AUTHORITY OF THE MANAGER 4 4. MANAGEMENT SERVICES 4 5. MANAGER'S OBLIGATIONS 6 6. COMPANY'S OBLIGATIONS 6 7. INSURANCE POLICIES 6 8. FEES AND EXPENSES 7 9. MANAGEM
September 20, 2017	8-A12B/A	Ocean Rig UDW 2B/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OCEAN RIG UDW INC. (Exact name of registrant as specified in its charter) Republic of the Marshall Islands N/A (Jurisdiction of incorporation or organization) (IRS Employer Iden
September 20, 2017	EX-99.1	AMENDMENT NO. 1 TO AMENDED AND RESTATED RIGHTS AGREEMENT Exhibit 99.1 AMENDMENT NO. 1 TO AMENDED AND RESTATED RIGHTS AGREEMENT This AMENDMENT NO. 1 TO AMENDED AND RESTATED RIGHTS AGREEMENT (this " Amendment") is dated as of September 20, 2017 (the " Effective Date") and amends that certain Amended and Restated Rights Agreement, dated as of June 3, 2011 (the " Rights Agreement"), by and between Ocean Rig UDW Inc., an exempted company registered in the Ca
September 20, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 20, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THAT U.S. BANKRUPTCY COURT HAS ISSUED AN ORDER GIVING FULL FORCE AND EFFECT IN THE UNITED STATES TO CAYMAN ISLANDS SCHEMES OF ARRANGEMENT Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THAT U.S. BANKRUPTCY COURT HAS ISSUED AN ORDER GIVING FULL FORCE AND EFFECT IN THE UNITED STATES TO CAYMAN ISLANDS SCHEMES OF ARRANGEMENT ? The U.S. Bankruptcy Court has issued an order giving full force and effect to the UDW, DFH, DOV and DRH Cayman Islands schemes of arrangement. ? UDW continues to work towards fulfilment or waiver of the remaining condi
September 20, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 20, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS Grand Cayman, Cayman Islands ? September 20, 2017 ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), an international contractor of offshore deepwater drilling services, today announced that the Company will hold an Extraordinary General Meeting of Shareholders (the "Meeting") at the Company's
September 20, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 19, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 19, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES REVERSE STOCK SPLIT EX-99.1 2 d7655314ex99-1.htm Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES REVERSE STOCK SPLIT September 19, 2017, Grand Cayman, Cayman Islands – Ocean Rig UDW Inc. (NASDAQ:ORIG) ("Ocean Rig" or "UDW" or the "Company"), an international contractor of offshore deepwater drilling services, announced today that its Board of Directors (the "Board") has determined to effect a 1-for-9,200 reverse stock spli
September 15, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES THAT THE CAYMAN COURT HAS SANCTIONED THE SCHEMES OF ARRANGEMENT RELATING TO UDW AND THE OTHER SCHEME COMPANIES Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES THAT THE CAYMAN COURT HAS SANCTIONED THE SCHEMES OF ARRANGEMENT RELATING TO UDW AND THE OTHER SCHEME COMPANIES ? The Schemes have been approved by the Cayman Court and the court orders have been filed with the Cayman Registrar of Companies (the "Registrar"). ? U.S. Bankruptcy Court to consider entry of an order giving full force and effect to the Schemes.
September 15, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
September 13, 2017	6-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Addres
August 28, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DECISION BY U.S. BANKRUPTCY COURT GRANTING RECOGNITION OF CAYMAN PROCEEDINGS AS FOREIGN MAIN PROCEEDINGS OCEAN RIG UDW INC. ANNOUNCES DECISION BY U.S. BANKRUPTCY COURT GRANTING RECOGNITION OF CAYMAN PROCEEDINGS AS FOREIGN MAIN PROCEEDINGS ? U.S. Bankruptcy Court Issues Memorandum Opinion and Order Granting Recognition of the Scheme Companies' Cayman Islands Provisional Liquidation and Scheme Proceedings as Foreign Main Proceedings Under the U.S. Bankruptcy Code. ? Sanction Hearings to Consider Approv
August 28, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address o
August 25, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address o
August 25, 2017	EX-99.1	REMINDER TO SCHEME CREDITORS IN RELATION TO APPLICABLE DEADLINES FOR SUBMISSION OF DOCUMENTATION REQUIRED FOR RECEIPT OF SCHEME ENTITLEMENTS AND DATE OF SCHEME SANCTION AND ENFORCEMENT HEARINGS Exhibit 99.1 REMINDER TO SCHEME CREDITORS IN RELATION TO APPLICABLE DEADLINES FOR SUBMISSION OF DOCUMENTATION REQUIRED FOR RECEIPT OF SCHEME ENTITLEMENTS AND DATE OF SCHEME SANCTION AND ENFORCEMENT HEARINGS 24 August, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig" or " UDW" or the " Company") an international contractor of offshore deepwater drilling services,
August 14, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address o
August 14, 2017	EX-99.1	ANNOUNCEMENT IN THE MATTERS OF SCHEMES OF ARRANGEMENT UNDER SECTION 86 OF THE COMPANIES LAW (2016 REVISION) OF THE CAYMAN ISLANDS RELATING TO DRILLSHIPS FINANCING HOLDING INC., OCEAN RIG UDW INC., DRILL RIGS HOLDINGS INC. AND DRILLSHIPS OCEAN VENTURE Exhibit 99.1 ANNOUNCEMENT IN THE MATTERS OF SCHEMES OF ARRANGEMENT UNDER SECTION 86 OF THE COMPANIES LAW (2016 REVISION) OF THE CAYMAN ISLANDS RELATING TO DRILLSHIPS FINANCING HOLDING INC., OCEAN RIG UDW INC., DRILL RIGS HOLDINGS INC. AND DRILLSHIPS OCEAN VENTURES INC. (EACH IN PROVISIONAL LIQUIDATION) August 14, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig"
July 31, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
July 31, 2017	EX-99.1	REMINDER TO SCHEME CREDITORS IN RELATION TO THE SCHEME MEETINGS TO BE HELD ON 11 AUGUST 2017 Exhibit 99.1 REMINDER TO SCHEME CREDITORS IN RELATION TO THE SCHEME MEETINGS TO BE HELD ON 11 AUGUST 2017 31 July, 2017, Grand Cayman, Cayman Islands – Ocean Rig UDW Inc. (NASDAQ: ORIG) (" Ocean Rig" or " UDW" or the " Company") an international contractor of offshore deepwater drilling services, wishes to remind Scheme Creditors of the need to submit certain documentation (as more fully described
July 21, 2017	EX-99.1	ANNOUNCEMENT IN THE MATTERS OF SCHEMES OF ARRANGEMENT UNDER SECTION 86 OF THE COMPANIES LAW (2016 REVISION) OF THE CAYMAN ISLANDS RELATING TO DRILLSHIPS FINANCING HOLDING INC., OCEAN RIG UDW INC., DRILL RIGS HOLDINGS INC. AND DRILLSHIPS OCEAN VENTURE EX-99.1 2 d7573874ex99-1.htm Exhibit 99.1 ANNOUNCEMENT IN THE MATTERS OF SCHEMES OF ARRANGEMENT UNDER SECTION 86 OF THE COMPANIES LAW (2016 REVISION) OF THE CAYMAN ISLANDS RELATING TO DRILLSHIPS FINANCING HOLDING INC., OCEAN RIG UDW INC., DRILL RIGS HOLDINGS INC. AND DRILLSHIPS OCEAN VENTURES INC. (EACH IN PROVISIONAL LIQUIDATION) July 21, 2017, Grand Cayman, Cayman Islands – Ocean Rig UDW Inc. (N
July 21, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
July 17, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
July 17, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DECLARATION OF THIRD OPTION TO EXTEND THE EXISTING CONTRACT OF LEIV EIRIKSSON AND GRANT OF TWO ADDITIONAL OPTIONS TO LUNDIN NORWAY AS. Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DECLARATION OF THIRD OPTION TO EXTEND THE EXISTING CONTRACT OF LEIV EIRIKSSON AND GRANT OF TWO ADDITIONAL OPTIONS TO LUNDIN NORWAY AS. July 17, 2017, Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ:ORIG) (" Ocean Rig" or " UDW" or the " Company"), an international contractor of offshore deepwater drilling services, today announced that Lundin Nor
June 19, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DECISION BY HIGHLAND CAPITAL MANAGEMENT LP NOT TO PURSUE OBJECTIONS TO RECOGNITION OF CAYMAN PROCEEDINGS BY U.S. BANKRUPTCY COURT Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DECISION BY HIGHLAND CAPITAL MANAGEMENT LP NOT TO PURSUE OBJECTIONS TO RECOGNITION OF CAYMAN PROCEEDINGS BY U.S. BANKRUPTCY COURT ? Highland has advised that it will not object to the Company's request for recognition of the Cayman Proceedings by the U.S. Bankruptcy Court. ? Highland has notified the Company and the U.S. Bankruptcy Court of its immediate c
June 19, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
June 13, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
June 1, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES DATE OF CONVENING HEARINGS FOR SCHEME COMPANIES AND EXTENSION OF DRH EARLY CONSENT DEADLINE Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES DATE OF CONVENING HEARINGS FOR SCHEME COMPANIES AND EXTENSION OF DRH EARLY CONSENT DEADLINE ? Convening hearings in relation to the proposed schemes of arrangement for Ocean Rig UDW Inc. ("UDW"), Drillships Financing Holding Inc. ("DFH"), Drillships Ocean Ventures Inc. ("DOV") and Drill Rigs Holdings Inc. ("DRH") (the "Scheme Companies") to begin on July 1
June 1, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
May 22, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES LAUNCH OF SCHEMES OF ARRANGEMENT Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES LAUNCH OF SCHEMES OF ARRANGEMENT ? Schemes of arrangement proceedings with respect to Ocean Rig UDW Inc., Drillships Financing Holding Inc. ("DFH"), Drillships Ocean Ventures Inc. ("DOV") and Drill Rigs Holdings Inc. ("DRH") (the "Scheme Companies") have been launched ? The Scheme Companies have issued a Practice Statement Letter notifying the Scheme Credi
May 22, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of p
May 18, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of p
May 18, 2017	EX-99.1	OCEAN RIG UDW INC., ANNOUNCES ENHANCED DRILLRIG HOLDINGS INC ("DRH") SCHEME TERMS AND AGREEMENT WITH AN AD HOC GROUP OF NOTEHOLDERS OF THE 6.5% NOTES ISSUED BY DRH TO SIGN UP TO THE AMENDED RESTRUCTURING SUPPORT AGREEMENT Exhibit 99.1 OCEAN RIG UDW INC., ANNOUNCES ENHANCED DRILLRIG HOLDINGS INC ("DRH") SCHEME TERMS AND AGREEMENT WITH AN AD HOC GROUP OF NOTEHOLDERS OF THE 6.5% NOTES ISSUED BY DRH TO SIGN UP TO THE AMENDED RESTRUCTURING SUPPORT AGREEMENT ? Amendments made to Restructuring Support Agreement ("RSA") reflecting agreement with Drill Rig Holdings Inc. ("DRH") ad hoc group of noteholders (the "DRH Group")
May 8, 2017	EX-99.1	OCEAN RIG UDW INC., DRILLSHIPS FINANCING HOLDING INC. AND DRILLSHIP OCEAN VENTURES INC. ANNOUNCE SATISFACTION OF SCHEME TRIGGER DATE CONDITIONS, EXTENSION OF DEADLINE RELATING TO TERM LOAN EARLY CONSENT FEE, AND ISSUANCE OF CLAIMS TRADING PROTOCOL. S Exhibit 99.1 OCEAN RIG UDW INC., DRILLSHIPS FINANCING HOLDING INC. AND DRILLSHIP OCEAN VENTURES INC. ANNOUNCE SATISFACTION OF SCHEME TRIGGER DATE CONDITIONS, EXTENSION OF DEADLINE RELATING TO TERM LOAN EARLY CONSENT FEE, AND ISSUANCE OF CLAIMS TRADING PROTOCOL. SCHEME FOR DRILL RIGS HOLDINGS INC. MAY BE POSTPONED. ? Scheme Trigger Date under restructuring agreement has occurred ? Deadline for rece
May 8, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of p
April 24, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
April 24, 2017	EX-99.1	OCEAN RIG UDW INC. ANNOUNCES EXTENSION OF DRH EARLY CONSENT DEADLINE Exhibit 99.1 OCEAN RIG UDW INC. ANNOUNCES EXTENSION OF DRH EARLY CONSENT DEADLINE April 21, 2017 ? Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, today announced that it has agreed to extend the term of the early consent deadline under the restructuring support agreement dated March 23, 201
April 24, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
April 11, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
April 11, 2017	EX-99.1	OCEAN RIG ANNOUNCES ENGAGEMENT OF FEARNLEY'S AND CLARKSONS AND EXTENSION OF EARLY CONSENT DEADLINE Exhibit 99.1 OCEAN RIG ANNOUNCES ENGAGEMENT OF FEARNLEY'S AND CLARKSONS AND EXTENSION OF EARLY CONSENT DEADLINE April 11, 2017 ? Grand Cayman, Cayman Islands ? Ocean Rig UDW Inc. (NASDAQ: ORIG) (the "Company" or "Ocean Rig"), a global provider of offshore deepwater drilling services, today announced that it has engaged Fearnley Securities AS (the "SSN Advisor") to solicit support for the scheme of
April 10, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) Converted by EDGARwiz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.
April 5, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) Converted by EDGARwiz AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of pr
April 3, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
March 30, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
March 28, 2017	EX-10.1	Restructuring Agreement by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc. and the Supporting Creditors as defined therein, dated March 23, 2017 and incorporated by reference to Exhibit 10.1 to the Company's Report on Form 6-K dated March 28, 2017. Exhibit 10.1 EXECUTION VERSION CONFIDENTIAL DATED MARCH 23 2017 RESTRUCTURING AGREEMENT Ocean Rig UDW Inc. Drillships Financing Holding Inc. Drillships Ocean Ventures Inc. Drill Rigs Holdings Inc. The Supporting Creditors CONTENTS Clause Page 1. Definitions 1 2. Effective Date 1 3. Undertakings 2 4. Representations and Warranties 5 5. Launch Trigger Date 5 6. Launch Events 6 7. Scheme Trigger Date
March 28, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. Ocean Rig Cayman Management Services SEZC Limited 3rd Floor Flagship Building Harbour Drive, Grand Cayman, Cayman Islands (Address of
March 28, 2017	EX-10.2	Waiver to Restructuring Support Agreement by and among Ocean Rig UDW Inc., Drillships Financing Holding Inc., Drillships Ocean Ventures Inc. and the Supporting Creditors as defined therein, dated March 23, 2017 and incorporated by reference to Exhibit 10.2 to the Company's Report on Form 6-K dated March 28, 2017. Exhibit 10.2 EXECUTION VERSION WAIVER TO THE RESTRUCTURING SUPPORT AGREEMENT THIS WAIVER (this " Waiver"), dated as of March 23, 2017, to the Restructuring Support Agreement, dated as of March 23, 2017 among Ocean Rig UDW Inc. (" Parent"), Drillships Financing Holding Inc., Drillships Ocean Ventures Inc., Drill Rigs Holdings Inc. and the Supporting Creditors (the " RSA") is made among Parent and t
March 28, 2017	EX-99..1	OCEAN RIG UDW INC. REACHES AGREEMENT ON COMPREHENSIVE DELEVERAGING AND RECAPITALIZATION TRANSACTION Exhibit 99.1 OCEAN RIG UDW INC. REACHES AGREEMENT ON COMPREHENSIVE DELEVERAGING AND RECAPITALIZATION TRANSACTION · Implementation commences with the appointment of joint provisional liquidators in the Cayman Islands · Operations to continue unaffected and trade creditors/vendors will continue to be paid in the ordinary course of business · Company will emerge with the industry's youngest ultra-dee
March 23, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) Converted by EDGARwiz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.
March 22, 2017	EX-4.47	Addendum to Management Services Agreement by and between Ocean Rig UDW Inc. and TMS Offshore Services Inc. dated March 31, 2016, dated as of January 16, 2017, incorporated by reference to Exhibit 4.47 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.47 ADDENDUM NO. 1 to an Agreement dated as of 31st March 2016 (the "TMS Agreement") between Ocean Rig UDW Inc. of Cayman Islands ("OCR") and TMS Offshore Services Ltd. of Marshall Islands ("TMS") (collectively referred to as "Parties", and individually as "Party") WHEREAS pursuant to the terms of the TMS Agreement, OCR and its relevant subsidiaries would enter into one or more management
March 22, 2017	EX-4.38	Termination Agreement by between Ocean Rig Management and Vivid Finance Limited dated March 31, 2016, incorporated by reference to Exhibit 4.38 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exibit 4.38 TERMINATION AGREEMENT This TERMINATION AGREEMENT (this "Agreement") is dated as of 31st March 2016 and entered into by and between: (1) OCEAN RIG MANAGEMENT INC. a company organized and existing under the laws of Marshall Islands with registered address at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Marshall Islands MH96960 (the "OR Management"); and (2) VIVID FINANC
March 22, 2017	EX-4.42	Trust Agreement of Drillship Alonissos Stock Trust, dated August 31, 2016, incorporated by reference to Exhibit 4.42 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.42 Execution version TRUST AGREEMENT OF DRILLSHIP ALONISSOS STOCK TRUST This TRUST AGREEMENT (Drillship Alonissos Stock Trust) dated as of August 31, 2016 (this "Agreement"), among DRILLSHIP ALONISSOS SHAREHOLDERS INC., a Marshall Islands corporation, ("Drillship"), OCEAN RIG UDW INC., a Cayman Islands corporation ("ORIG", Drillship and ORIG, each, a "Depositor") and WILMINGTON TRUST COM
March 22, 2017	EX-4.43	Addendum to First Preferred Marshall Islands Mortgage by and between Drillships Alonissos Owners Inc. and DNB Bank ASA relating to the Ocean Rig Apollo dated August 31, 2016, incorporated by reference to Exhibit 4.43 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.43 EXECUTION VERSION "OCEAN RIG APOLLO" ADDENDUM TO FIRST PREFERRED MARSHALL ISLANDS MORTGAGE THIS ADDENDUM (the "Addendum") is made on the 31st day of August 2016 BETWEEN (1) DRILLSHIP ALONISSOS OWNERS INC., a corporation incorporated in the Republic of The Marshall Islands whose registered address is at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Marshall Islands MH9
March 22, 2017	EX-4.40	Amendment No.1 to Facilities Agreement, dated February 13, 2015, by and among Drillship Alonissos Shareholders Inc., as Borrower, Ocean Rig UDW Inc., as Parent and Guarantor, Drillship Alonissos Owners Inc., as Drillship Owner and Guarantor, and the other entities named therein, relating to $475 million Term Loan Facilities, dated August 31, 2016, incorporated by reference to Exhibit 4.40 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. EX-4.40 4 d7443319ex4-40.htm Exhibit 4.40 EXECUTION VERSION Dated 31 August 2016 USD 475,000,000 TERM LOAN FACILITIES USD 413,368,546.10 outstanding AMENDMENT NO. 1 TO TERM LOAN FACILITY DRILLSHIP ALONISSOS SHAREHOLDERS INC. as Borrower OCEAN RIG UDW INC. as Purchaser DRILLSHIP ALONISSOS OWNERS INC. as Drillship Owner and Guarantor with DNB BANK ASA and DVB BANK SE (AMSTERDAM BRANCH) as Mandated L
March 22, 2017	EX-13.1	PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 Exhibit 13.1 PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 In connection with this Annual Report of Ocean Rig UDW Inc. (the "Company") on Form 20-F for the year ended December 31, 2016 as filed with the Securities and Exchange Commission (the "SEC") on or about the date hereof (the "Report"), I, George Economou, Chairman and Chief Executive Officer of the Company, ce
March 22, 2017	EX-15.1	CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-202829, as amended) of Ocean Rig UDW Inc. and (2) Registration Statement (Form F-4 No. 333-210118, as amended) of Ocean Rig UDW Inc., and in the related prospectuses included therein of our reports
March 22, 2017	EX-4.44	Share Security Deed by and between Drillship Alonissos Stock Trust as Shareholder and DNB Bank ASA as Security Agent relating to the shares of Drillship Alonissos Shareholders Inc., dated August 31, 2016, incorporated by reference to Exhibit 4.44 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.44 Execution version Dated 31 August 2016 DRILLSHIP ALONISSOS STOCK TRUST as Shareholder and DNB BANK ASA as Security Agent SHARES SECURITY DEED relating to the shares of Drillship Alonissos Shareholders Inc. Index Clause Page 1 Definitions and Interpretation 1 2 Covenant to Pay and Covenant to Perform 3 3 Creation of Security 4 4 Dealings with Shares 7 5 Representations 8 6 Protection o
March 22, 2017	EX-4.45	Termination Agreement by between Eastern Med Consultants Inc. and Azara Services S.A., dated as of December 30, 2016, incorporated by reference to Exhibit 4.45 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.45 TERMINATION AGREEMENT This TERMINATION AGREEMENT (this "Agreement") is dated as of 30th December 2016 and entered into by and between: (1) EASTERN MED CONSULTANTS INC., a company organized and existing under the laws of Marshall Islands having its registered office at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Marshall Islands MH96960 ("Eastern Med"); and (2) AZARA
March 22, 2017	EX-4.41	Put and Call Option Agreement between Drillship Alonissos Shareholders Inc. as Borrower, Ocean Rig UDW Inc. as Purchaser and Drillship Alonissos Owners Inc. as Drillship Owner, dated August 31, 2016 incorporated by reference to Exhibit 4.41 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.41 EXECUTION VERSION Dated 31 August 2016 DRILLSHIP ALONISSOS SHAREHOLDERS INC. as Borrower OCEAN RIG UDW INC. as Purchaser DRILLSHIP ALONISSOS OWNERS INC. as Drillship Owner PUT AND CALL OPTION AGREEMENT WATSON FARLEY & WILLIAMS Index Clause Page 1 Definitions and Interpretation 1 2 Put Option 4 3 Call Option 4 4 Sale Mechanics 4 5 Payment Obligation Absolute 5 6 Assignment 6 7 Total Lo
March 22, 2017	EX-13.2	PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 Exhibit 13.2 PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 In connection with this Annual Report of Ocean Rig UDW Inc. (the "Company") on Form 20-F for the year ended December 31, 2016 as filed with the Securities and Exchange Commission (the "SEC") on or about the date hereof (the "Report"), I, Anthony Kandylidis, President and Chief Financial Officer of the Company
March 22, 2017	20-F	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report: Not applicable Commission file number 001-35298 OCEAN RIG UDW INC.
March 22, 2017	EX-12.2	CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER Exhibit 12.2 CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER I, Anthony Kandylidis, certify that: 1. I have reviewed this annual report on Form 20-F of Ocean Rig UDW Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements we
March 22, 2017	EX-12.1	CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER Exhibit 12.1 CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER I, George Economou, certify that: 1. I have reviewed this annual report on Form 20-F of Ocean Rig UDW Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were
March 22, 2017	EX-4.37	Termination Agreement by and between Ocean Rig Management and Cardiff Drilling Inc., dated March 31, 2016, incorporated by reference to Exhibit 4.37 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.37 TERMINATION AGREEMENT This TERMINATION AGREEMENT (this "Agreement") is dated as of 31st March 2016 and entered into by and between: (1) OCEAN RIG MANAGEMENT INC. a company organized and existing under the laws of Marshall Islands with registered address at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Marshall Islands MH96960 (the "OR Management"); and (2) CARDIFF DRI
March 22, 2017	EX-4.46	Termination Agreement by between Eastern Med Consultants Inc. and Basset Holdings Inc., dated as of December 30, 2016, incorporated by reference to Exhibit 4.46 to the Annual Report on Form 20-F of Ocean Rig UDW Inc. for the fiscal year ended December 31, 2016, filed with the SEC on March 22, 2017. Exhibit 4.46 TERMINATION AGREEMENT This TERMINATION AGREEMENT (this "Agreement") is dated as of 30th December 2016 and entered into by and between: (1) EASTERN MED CONSULTANTS INC., a company organized and existing under the laws of Marshall Islands having its registered office at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Marshall Islands MH96960 ("Eastern Med"); and (2) BASSE
February 24, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. c/o Maples Corporate Services Limited P.O. Box 309, Ugland House Grand Cayman, KY1-1104 Cayman Islands (Address of pr
February 10, 2017	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2017 Commission File Number 001-35298 OCEAN RIG UDW INC. c/o Maples Corporate Services Limited P.O. Box 309, Ugland House Grand Cayman, KY1-1104 Cayman Islands (Address of pr
February 9, 2017	SC 13G/A	ORIG / Ocean Rig UDW Inc. / Adage Capital Partners GP LLC - ADAGE CAPITAL PARTNERS GP, L.L.C. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Ocean Rig UDW Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) G66964100 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to
December 15, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. c/o Maples Corporate Services Limited P.O. Box 309, Ugland House Grand Cayman, KY1-1104 Cayman Islands (Address of principal execu
December 15, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. c/o Maples Corporate Services Limited P.O. Box 309, Ugland House Grand Cayman, KY1-1104 Cayman Islands (Address of pr
September 27, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. c/o Maples Corporate Services Limited P.O. Box 309, Ugland House Grand Cayman, KY1-1104 Cayman Islands (Address of p
September 1, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Indicate b
August 12, 2016	6-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Indicate by c
August 12, 2016	6-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Indicate by c
July 6, 2016	EX-3.4	Amended and Restated Memorandum and Articles of Association, incorporated by reference to Exhibit 3.4 to the Post-Effective Amendment to Registration Statement on Form F-4 of Ocean Rig UDW Inc. (Registration No. 333-210118), filed with the SEC on July 7, 2016. EX-3.4 Exhibit 3.4 THE COMPANIES LAW (2013 REVISION) OF THE CAYMAN ISLANDS COMPANY LIMITED BY SHARES AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF OCEAN RIG UDW INC. THE COMPANIES LAW (2013 REVISION) OF THE CAYMAN ISLANDS COMPANY LIMITED BY SHARES MEMORANDUM OF ASSOCIATION OF OCEAN RIG UDW INC. (ADOPTED BY SPECIAL RESOLUTION PASSED ON JULY 4, 2016) 1 The name of the Company is OCE
July 6, 2016	POS AM	Ocean Rig UDW POS AM POS AM As filed with the U.S. Securities and Exchange Commission on July 6, 2016 Registration No. 333-210118 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to Form F-4 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Ocean Rig UDW Inc. (Exact name of registrant as specified in its charter) Cayman Islands 4412 N/A (State or other jurisd
July 5, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) In
June 15, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Indicate by che
June 10, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2 nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Indicate by ch
May 20, 2016	6-K	Ocean Rig UDW (Current Report of Foreign Issuer) DRYSHIPS INC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2016 Commission File Number 001-35298 OCEAN RIG UDW INC. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus (Address of principal executive offices) Ind
May 5, 2016	EX-5.8	Ocean Rig UDW Inc. PO Box 309, Ugland House Grand Cayman Cayman Islands Exhibit 5.8 Our ref SEA/713299-000001/41309902v9 Ocean Rig UDW Inc. 10 Skopa Street, Tribune House 2nd Floor, Office 202, CY 1075 Nicosia, Cyprus 5 May 2016 Dear Sirs Ocean Rig UDW Inc. – Registration Statement on Form F-3 We are acting as counsel as to Cayman Islands law to Ocean Rig UDW Inc. (the "Company"), a company incorporated under the laws of the Cayman Islands in connection with the prepa
May 5, 2016	EX-23.9	CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Exhibit 23.9 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the reference to our firm under the caption "Experts" in Amendment No. 3 to the Registration Statement (Form F-3 No. 333-202829) and related Prospectus of Ocean Rig UDW Inc. for the registration of its common shares (including related preferred share purchase rights), its preferred shares, its debt securities, whic
May 5, 2016	F-3/A	SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 3 TO FORM F-3 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 OCEAN RIG UDW INC. (Exact name of registrant as specified in its charter) As filed with the Securities and Exchange Commission on May 5, 2016 Registration Statement No.
May 5, 2016	EX-4.1	EX-4.1 Exhibit 4.1
May 4, 2016	SC 13G/A	ORIG / Ocean Rig UDW Inc. / HIGHLAND CAPITAL MANAGEMENT FUND ADVISORS, L.P. - SC 13G/A Passive Investment SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A (Rule 13d-102) (Amendment No.

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