| Form: | F-3 |
| CIK: | 0001447382 | | Company Name: | Ocean Rig UDW Inc. | | File Number: | 333-202829 |
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| CIK: | 0001500405 | | Company Name: | DRILL RIGS HOLDINGS INC. | | File Number: | 333-202829-94 |
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| CIK: | 0001500409 | | Company Name: | OCEAN RIG 1 SHAREHOLDERS INC. | | File Number: | 333-202829-93 |
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| CIK: | 0001500410 | | Company Name: | OCEAN RIG 2 SHAREHOLDERS INC. | | File Number: | 333-202829-92 |
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| CIK: | 0001500406 | | Company Name: | OCEAN RIG 1 INC. | | File Number: | 333-202829-91 |
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| CIK: | 0001500407 | | Company Name: | OCEAN RIG 2 INC. | | File Number: | 333-202829-90 |
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| CIK: | 0001560101 | | Company Name: | Ocean Rig 1 Greenland Operations Inc. | | File Number: | 333-202829-89 |
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| CIK: | 0001560110 | | Company Name: | Ocean Rig Falkland Operations Inc. | | File Number: | 333-202829-88 |
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| CIK: | 0001560116 | | Company Name: | Ocean Rig EG Operations Inc. | | File Number: | 333-202829-87 |
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| CIK: | 0001560088 | | Company Name: | Ocean Rig Norway Operations Inc. | | File Number: | 333-202829-86 |
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| CIK: | 0001560072 | | Company Name: | Ocean Rig Angola Operations Inc. | | File Number: | 333-202829-85 |
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| CIK: | 0001560070 | | Company Name: | Ocean Rig Corcovado Greenland Operations Inc. | | File Number: | 333-202829-84 |
|
| CIK: | 0001560067 | | Company Name: | Ocean Rig Poseidon Operations Inc. | | File Number: | 333-202829-83 |
|
| CIK: | 0001560062 | | Company Name: | Ocean Rig Namibia Operations Inc. | | File Number: | 333-202829-82 |
|
| CIK: | 0001560063 | | Company Name: | Ocean Rig Cuanza Operations Inc. | | File Number: | 333-202829-81 |
|
| CIK: | 0001500408 | | Company Name: | OCEAN RIG OPERATIONS INC. | | File Number: | 333-202829-80 |
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| CIK: | 0001560124 | | Company Name: | Ocean Rig Global Chartering Inc. | | File Number: | 333-202829-79 |
|
| CIK: | 0001500493 | | Company Name: | DRILLSHIPS HOLDINGS INC. | | File Number: | 333-202829-78 |
|
| CIK: | 0001500501 | | Company Name: | DRILLSHIP HYDRA SHAREHOLDERS INC. | | File Number: | 333-202829-77 |
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| CIK: | 0001500500 | | Company Name: | DRILLSHIP PAROS SHAREHOLDERS INC. | | File Number: | 333-202829-76 |
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| CIK: | 0001560074 | | Company Name: | Drillships Holdings Operations Inc. | | File Number: | 333-202829-75 |
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| CIK: | 0001500510 | | Company Name: | DRILLSHIP HYDRA OWNERS INC. | | File Number: | 333-202829-74 |
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| CIK: | 0001500652 | | Company Name: | DRILLSHIP PAROS OWNERS INC. | | File Number: | 333-202829-73 |
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| CIK: | 0001500490 | | Company Name: | DRILLSHIPS INVESTMENT INC. | | File Number: | 333-202829-72 |
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| CIK: | 0001500653 | | Company Name: | DRILLSHIP KITHIRA OWNERS INC. | | File Number: | 333-202829-71 |
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| CIK: | 0001500654 | | Company Name: | DRILLSHIP SKOPELOS OWNERS INC. | | File Number: | 333-202829-70 |
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| CIK: | 0001560061 | | Company Name: | Drillships Investment Operations Inc. | | File Number: | 333-202829-69 |
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| CIK: | 0001560064 | | Company Name: | Drillships Ocean Ventures Inc. | | File Number: | 333-202829-68 |
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| CIK: | 0001560119 | | Company Name: | Drillship Skiathos Shareholders Inc. | | File Number: | 333-202829-67 |
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| CIK: | 0001560093 | | Company Name: | Drillship Skyros Shareholders Inc. | | File Number: | 333-202829-66 |
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| CIK: | 0001560091 | | Company Name: | Drillship Kythnos Shareholders Inc. | | File Number: | 333-202829-65 |
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| CIK: | 0001560104 | | Company Name: | Drillship Skiathos Owners Inc. | | File Number: | 333-202829-64 |
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| CIK: | 0001560108 | | Company Name: | Drillship Skyros Owners Inc. | | File Number: | 333-202829-63 |
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| CIK: | 0001560078 | | Company Name: | Drillship Kythnos Owners Inc. | | File Number: | 333-202829-62 |
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| CIK: | 0001560066 | | Company Name: | Drillships Ocean Ventures Operations Inc. | | File Number: | 333-202829-61 |
|
| CIK: | 0001560226 | | Company Name: | Drillship Alonissos Owners Inc. | | File Number: | 333-202829-60 |
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| CIK: | 0001560227 | | Company Name: | Drillship Alonissos Shareholders Inc. | | File Number: | 333-202829-59 |
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| CIK: | 0001560114 | | Company Name: | Drill Rigs Operations Inc. | | File Number: | 333-202829-58 |
|
| CIK: | 0001560096 | | Company Name: | Alley Finance Co. | | File Number: | 333-202829-57 |
|
| CIK: | 0001560097 | | Company Name: | Algarve Finance Ltd. | | File Number: | 333-202829-56 |
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| CIK: | 0001500503 | | Company Name: | KITHIRA SHAREHOLDERS INC. | | File Number: | 333-202829-55 |
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| CIK: | 0001500502 | | Company Name: | SKOPELOS SHAREHOLDERS INC. | | File Number: | 333-202829-54 |
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| CIK: | 0001585272 | | Company Name: | BLUESKY OWNERS INC. | | File Number: | 333-202829-53 |
|
| CIK: | 0001585295 | | Company Name: | BLUESKY SHAREHOLDERS INC. | | File Number: | 333-202829-52 |
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| CIK: | 0001635435 | | Company Name: | Drillship Amorgos Owners Inc. | | File Number: | 333-202829-51 |
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| CIK: | 0001635436 | | Company Name: | Drillship Amorgos Shareholders Inc. | | File Number: | 333-202829-50 |
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| CIK: | 0001635332 | | Company Name: | Drillship Crete Owners Inc. | | File Number: | 333-202829-49 |
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| CIK: | 0001635292 | | Company Name: | Drillship Skiathos Shareholders II Inc. | | File Number: | 333-202829-48 |
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| CIK: | 0001635415 | | Company Name: | Drillship Skyros Owners II Inc. | | File Number: | 333-202829-47 |
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| CIK: | 0001635414 | | Company Name: | Drillship Skyros Shareholders II Inc. | | File Number: | 333-202829-46 |
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| CIK: | 0001585236 | | Company Name: | DRILLSHIPS FINANCING HOLDING INC. | | File Number: | 333-202829-45 |
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| CIK: | 0001635422 | | Company Name: | Drillships Ocean Ventures II Inc. | | File Number: | 333-202829-44 |
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| CIK: | 0001585582 | | Company Name: | DRILLSHIPS PROJECTS INC. | | File Number: | 333-202829-43 |
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| CIK: | 0001635304 | | Company Name: | Drillships Ventures Projects Inc. | | File Number: | 333-202829-42 |
|
| CIK: | 0001585279 | | Company Name: | EASTERN MED CONSULTANTS INC. | | File Number: | 333-202829-41 |
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| CIK: | 0001585533 | | Company Name: | IRELAND DRILLING CREW INC. | | File Number: | 333-202829-40 |
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| CIK: | 0001500586 | | Company Name: | OCEAN RIG BLACK SEA COOP. | | File Number: | 333-202829-38 |
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| CIK: | 0001500587 | | Company Name: | OCEAN RIG BLACK SEA OPERATIONS BV | | File Number: | 333-202829-37 |
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| CIK: | 0001585551 | | Company Name: | OCEAN RIG BLOCK 33 BRASIL B.V. | | File Number: | 333-202829-36 |
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| CIK: | 0001585553 | | Company Name: | OCEAN RIG BLOCK 33 BRASIL COOPERATIEF U.A. | | File Number: | 333-202829-35 |
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| CIK: | 0001500570 | | Company Name: | OCEAN RIG CANADA INC. | | File Number: | 333-202829-34 |
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| CIK: | 0001635301 | | Company Name: | Ocean Rig Congo Operations Inc. | | File Number: | 333-202829-33 |
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| CIK: | 0001585540 | | Company Name: | OCEAN RIG CUBANGO OPERATIONS INC. | | File Number: | 333-202829-32 |
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| CIK: | 0001585541 | | Company Name: | OCEAN RIG CUNENE OPERATIONS INC. | | File Number: | 333-202829-31 |
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| CIK: | 0001500588 | | Company Name: | OCEAN RIG DRILLING OPERATIONS BV | | File Number: | 333-202829-30 |
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| CIK: | 0001585613 | | Company Name: | OCEAN RIG DRILLING OPERATIONS COOPERATIEF U.A. | | File Number: | 333-202829-29 |
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| CIK: | 0001585537 | | Company Name: | OCEAN RIG GABON OPERATIONS INC. | | File Number: | 333-202829-28 |
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| CIK: | 0001635244 | | Company Name: | Ocean Rig Holdings Inc. | | File Number: | 333-202829-27 |
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| CIK: | 0001585580 | | Company Name: | OCEAN RIG IRELAND OPERATIONS INC. | | File Number: | 333-202829-26 |
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| CIK: | 0001585563 | | Company Name: | OCEAN RIG LIBERIA OPERATIONS INC. | | File Number: | 333-202829-25 |
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| CIK: | 0001500590 | | Company Name: | OCEAN RIG LTD | | File Number: | 333-202829-24 |
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| CIK: | 0001585238 | | Company Name: | OCEAN RIG MANAGEMENT INC. | | File Number: | 333-202829-23 |
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| CIK: | 0001635283 | | Company Name: | Ocean Rig MLP Holdings Inc. | | File Number: | 333-202829-22 |
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| CIK: | 0001500566 | | Company Name: | OCEAN RIG NORTH SEA AS | | File Number: | 333-202829-21 |
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| CIK: | 0001635278 | | Company Name: | Ocean Rig Offshore Management Ltd | | File Number: | 333-202829-20 |
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| CIK: | 0001635250 | | Company Name: | Ocean Rig Operating LP | | File Number: | 333-202829-19 |
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| CIK: | 0001635291 | | Company Name: | Ocean Rig Operating Partners GP LLC | | File Number: | 333-202829-18 |
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| CIK: | 0001635247 | | Company Name: | Ocean Rig Partners GP LLC | | File Number: | 333-202829-17 |
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| CIK: | 0001605782 | | Company Name: | Ocean Rig Partners LP | | File Number: | 333-202829-16 |
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| CIK: | 0001585534 | | Company Name: | OCEAN RIG SPARES INC. | | File Number: | 333-202829-15 |
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| CIK: | 0001635953 | | Company Name: | Ocean Rig UDW LLC | | File Number: | 333-202829-14 |
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| CIK: | 0001500567 | | Company Name: | OCEAN RIG UK LTD | | File Number: | 333-202829-13 |
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| CIK: | 0001585234 | | Company Name: | OCEAN RIG WEST AFRICA OPERATIONS | | File Number: | 333-202829-12 |
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| CIK: | 0001635246 | | Company Name: | OCR FALKLANDS DRILLING INC. | | File Number: | 333-202829-11 |
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| CIK: | 0001635277 | | Company Name: | OR Crewing Ltd | | File Number: | 333-202829-10 |
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| CIK: | 0001635446 | | Company Name: | OR Global Block Operators Inc. | | File Number: | 333-202829-09 |
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| CIK: | 0001500404 | | Company Name: | PRIMELEAD Ltd | | File Number: | 333-202829-08 |
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| CIK: | 0001635447 | | Company Name: | South Africa Drilling Crew Inc. | | File Number: | 333-202829-07 |
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| CIK: | 0001635329 | | Company Name: | Drillship Crete Shareholders Inc. | | File Number: | 333-202829-06 |
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| CIK: | 0001635419 | | Company Name: | Drillship Kythnos Owners II Inc. | | File Number: | 333-202829-05 |
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| CIK: | 0001635416 | | Company Name: | Drillship Kythnos Shareholders II Inc. | | File Number: | 333-202829-04 |
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| CIK: | 0001635441 | | Company Name: | Drillship Santorini Owners Inc. | | File Number: | 333-202829-03 |
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| CIK: | 0001635443 | | Company Name: | Drillship Santorini Shareholders Inc. | | File Number: | 333-202829-02 |
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| CIK: | 0001635293 | | Company Name: | Drillship Skiathos Owners II Inc. | | File Number: | 333-202829-01 |
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