EX-8.1 25 d316138dex81.htm SUBSIDIARIES OF THE COMPANY Subsidiaries of the Company

Exhibit 8.1

The Company’s consolidated subsidiaries as of December 31, 2011, are listed below:

 

Ship-owning Companies with Vessels in Operation at December 31, 2011   

Country of

Incorporation

    Vessel
1.   

Malvina Shipping Company Limited

    Malta    Coronado
2.   

Selma Shipping Company Limited

    Malta    La Jolla
3.   

Samsara Shipping Company Limited

    Malta    Ocean Crystal
4.   

Farat Shipping Company Limited

    Malta    Toro
5.   

Borsari Shipping Company Limited

    Malta    Catalina
6.   

Onil Shipping Company Limited

    Malta    Padre
7.   

Fabiana Navigation Company Limited

    Malta    Alameda
8.   

Karmen Shipping Company Limited

    Malta    Sonoma
9.   

Thelma Shipping Company Limited

    Malta    Manasota
10.   

Celine Shipping Company Limited

    Malta    Mendocino
11.   

Tempo Marine Co.

    Marshall Islands    Maganari
12.   

Star Record Owning Company Limited

    Marshall Islands    Ligari
13.   

Argo Owning Company Limited

    Marshall Islands    Redondo
14.   

Rea Owning Company Limited

    Marshall Islands    Ecola
15.   

Gaia Owning Company Limited

    Marshall Islands    Samsara
16.   

Kronos Owning Company Limited

    Marshall Islands    Primera
17.   

Trojan Maritime Co.

    Marshall Islands    Brisbane
18.   

Dione Owning Company Limited

    Marshall Islands    Marbella
19.   

Phoebe Owning Company Limited

    Marshall Islands    Majorca
20.   

Uranus Owning Company Limited

    Marshall Islands    Levanto
21.   

Selene Owning Company Limited

    Marshall Islands    Bargara
22.   

Tethys Owning Company Limited

    Marshall Islands    Capitola
23.   

Ioli Owning Company Limited

    Marshall Islands    Byron (ex Paros I)
24.   

Iason Owning Company Limited

    Marshall Islands    Oregon
25.   

Orpheus Owning Company Limited

    Marshall Islands    Avoca
26.   

Team up Owning Company Limited

    Marshall Islands    Saldanha
27.   

Iokasti Owning Company Limited

    Marshall Islands    Galveston
28.   

Boone Star Owners Inc.

    Marshall Islands    Samatan
29.   

Norwalk Star Owners Inc.

    Marshall Islands    Capri
30.   

Ionian Traders Inc.

    Marshall Islands    Positano
31.   

NT LLC Investors Ltd.

    Marshall Islands    Conquistador

Ship-owning Companies with Vessels in Operation at December 31, 2011   

Country of

Incorporation

    Vessel
32.    Dalian Star Owners Inc.    Marshall Islands    Mystic
33.    Aegean Traders Inc.    Marshall Islands    Sorrento
34.    Cretan Traders Inc.    Marshall Islands    Flecha
35.    Roscoe Marine Ltd.    Marshall Islands    Rapallo
36.    Ialysos Owning Company Limited    Marshall Islands    Amalfi
37.    Pergamos Owning Company Limited    Marshall Islands    Woolloomooloo
38.    Amathus Owning Company Limited    Marshall Islands    Raraka
39.    Olympian Zeus Owners Inc.    Marshall Islands    Saga
40.    Olympian Apollo Owners Inc.    Marshall Islands    Vilamoura
41.    Olympian Hera Owners Inc.    Marshall Islands    Daytona
42.    Olympian Poseidon Owners Inc.    Marshall Islands    Belmar
43.    Olympian Demeter Owners Inc.    Marshall Islands    Calida
44.    Oceanenergy Owners Limited    Marshall Islands    Helena
45.    Oceantrade Owners Limited    Marshall Islands    Topeka
46.    Oceanprime Owners Limited    Marshall Islands    Montecristo
47.    Oceanwave Owners Limited    Marshall Islands    Partagas
48.    Oceanrunner Owners Limited    Marshall Islands    Robusto
49.    Oceanfire Owners Inc.    Marshall Islands    Cohiba

 

Ship-buying Companies of Vessels under Construction    Country of
Incorporation		    Vessel
50.   

Olympian Athena Owners Inc.

    Marshall Islands    Hull 1885 (Alicante)
51.   

Olympian Dionysus Owners Inc.

    Marshall Islands    Hull 1886 (Mareta)
52.   

Olympian Artemis Owners Inc.

    Marshall Islands    Hull 1888 (Petalidi)
53.   

Olympian Ares Owners Inc.

    Marshall Islands    Hull 1889 (Lipari)
54.   

Olympian Aphrodite Owners Inc.

    Marshall Islands    Hull 1890 (Bordeira)
55.   

Olympian Hephaestus Owners Inc.

    Marshall Islands    Hull 1848 (Esperona)
56.   

Olympian Hermes Owners Inc.

    Marshall Islands    Hull 1949 (Blanca)
57.   

Symi Owners Inc.

    Marshall Islands    Hull 1241
58.   

Kalymnos Owners Inc.

    Marshall Islands    Hull 1242
59.   

Echo Owning Company Limited

    Marshall Islands    Hull 1259
60.   

Caerus Owning Company Limited

    Marshall Islands    Hull 1260
61.   

Litae Owning Company Limited

    Marshall Islands    Hull 1261
62.   

Tyche Owning Company Limited

    Marshall Islands    Hull 1262
63.   

Oceanview Owners Limited

    Liberia    Hull 1227

64.    Oceansurf Owners Limited    Liberia    Hull 1228
65.    Oceancentury Owners Limited    Liberia    Hull 1229
66.    Amazon Owning Company Limited    Marshall Islands    Hull 1239
67.    Pacifai Owning Company Limited    Marshall Islands    Hull 1240

 

Ship-owning Companies with Vessels Lost, Sold or Canceled    Country of
Incorporation		    Vessel
68.    Monteagle Shipping SA    Marshall Islands    Oliva
69.    Iktinos Owning Company Limited    Marshall Islands    Hull SS058
70.    Kallikrates Owning Company Limited    Marshall Islands    Hull SS059
71.    Faedon Shareholders Limited    Marshall Islands    Hull 2089
72.    Lansat Shipping Company Limited    Malta    Paragon
73.    Thassos Traders Inc    Marshall Islands    Sidari
74.    Milos Traders Inc.    Marshall Islands    Petani
75.    Sifnos Traders Inc.    Marshall Islands    Hull 1568A
76.    Tinos Traders Inc .    Marshall Islands    Hull 1569A
77.    Annapolis Shipping Company.    Malta    Lanikai
78.    Tolan Shipping Company Limited.    Malta    Tonga
79.    Felicia Navigation Company Limited.    Malta    Solana
80.    Zatac Shipping Company Limited    Malta    Waikiki
81.    Atlas Owning Company Limited    Marshall Islands    Menorca
82.    Maternal Owning Company Limited)    Marshall Islands    Lanzarote
83.    Royerton Shipping Company Limited    Malta    Netadola
84.    Lancat Shipping Company Limited    Malta    Matira
85.    Paternal Owning Company Limited    Marshall Islands    Formentera
86.    Fago Shipping Company Limited    Malta    Lanikai
87.    Hydrogen Shipping Company Limited    Malta    Mostoles
88.    Madras Shipping Company Limited    Malta    Alona
89.    Seaventure Shipping Limited    Marshall Islands    Hille Oldendorff
90.    Classical Owning Company Limited    Marshall Islands    Delray
91.    Oxygen Shipping Company Limited    Malta    Shibumi
92.    Human Owning Company Limited    Marshall Islands    Estepona
93.    Helium Shipping Company Limited    Malta    Striggla
94.    Blueberry Shipping Company Limited    Malta    Panormos
95.    Platan Shipping Company Limited    Malta    Daytona
96.    Silicon Shipping Company Limited    Malta    Flecha

97.    Callicles Challenge Inc.    Marshall Islands    Hull 1154
98.    Antiphon Challenge Inc.    Marshall Islands    Hull 1155
99.    Cratylus Challenge Inc.    Marshall Islands    Hull 1129
100.    Protagoras Challenge Inc.    Marshall Islands    Hull 1119
101.    Lycophron Challenge Inc.    Marshall Islands    Hull 1106
102.    Thrasymachus Challenge Inc.    Marshall Islands    Morgiana
103.    Hippias Challenge Inc.    Marshall Islands    Fernandina
104.    Prodicus Challenge Inc.    Marshall Islands    Pompano
105.    Gorgias Challenge Inc.    Marshall Islands    Ventura
106.    Kerkyra Traders Inc.    Marshall Islands    Maple Valley
107.    Arleta Navigation Company Limited    Malta    Xanadu
108.    Iguana Shipping Company Limited    Malta    Iguana
109.    Lotis Traders Inc.    Marshall Islands    Delray
110.    Mandarin Shareholdings Limited    Marshall Islands    Geden Hull 003
111.    Mensa Shareholdings Limited    Marshall Islands    Geden Hull 002
112.    Belulu Shareholders Limited    Marshall Islands    Hull No. 1128
113.    Oceanship Owners Limited    Marshall Islands    Trenton
114.    Oceanwealth Owners Limited    Marshall Islands    Pierre
115.    Oceanventure Owners Limited    Marshall Islands    Austin
116.    Oceanresources Owners Limited    Marshall Islands    Juneau
117.    Oceanstrength Owners Limited    Marshall Islands    Lansing
118.    Oceanprime Owners Limited    Marshall Islands    Richmond
119.    Oceanclarity Owners Limited    Marshall Islands    Pink Sands
120.    Oceanfighter Owners Inc.    Marshall Islands    Olinda
121.    Ocean Faith Owners Inc.    Marshall Islands    Tigani
122.    Ocean Blue Spirit Owners Inc.    Marshall Islands    Tamara
123.    Kifissia Star Owners Inc.    Marshall Islands    Augusta

 

Subsidiaries of Ocean Rig UDW Inc.    Country of
Incorporation		    Activity/Vessels
124.    Ocean Rig UDW Inc (formerly Primelead Shareholders Inc)    Marshall Islands    Holding Company
125.    Ocean Rig AS    Norway    Management Company
126.    Ocean Rig UK Ltd    UK    Management/Employment Company
127.    Ocean Rig Ltd    UK    Holding Limited
128.    Ocean Rig Ghana Ltd    Ghana    Operating Company

129.    Ocean Rig Canada Inc.    Canada    Employment Company
130.    Ocean Rig North Sea AS    Norway    Employment Company
131.    Ocean Rig 1 Shareholders Inc.    Marshall Islands    Holding Company
132.    Ocean Rig 2 Shareholders Inc.    Marshall Islands    Holding Company
133.    Drill Rigs Holdings Inc.    Marshall Islands    Holding Company
134.    Drillships Investment Inc.    Marshall Islands    Holding Company
135.    Drillships Holdings Inc.    Marshall Islands    Holding Company
136.    Kithira Shareholders Inc.    Marshall Islands    Holding Company
137.    Skopelos Shareholders Inc.    Marshall Islands    Holding Company
138.    Drillship Hydra Shareholders Inc.    Marshall Islands    Holding Company
139.    Drillship Paros Shareholders Inc.    Marshall Islands    Holding Company
140.    Ocean Rig Operations Inc.    Marshall Islands    Holding Company
141.    Primelead Limited    Cyprus    Holding Company
142.    Ocean Rig Black Sea Operations BV    The Netherlands    Operating Company
143.    Ocean Rig Drilling Services Cooperatief U.A    The Netherlands    Holding Company
144.    Ocean Rig Black Sea Cooperatief U.A    The Netherlands    Holding Company
145.    Ocean Rig Deep Water Drilling Ltd.    Nigeria    Operating Company
146.    Ocean Rig Drilling Operations B.V.    Netherlands    Operating Company
147.    Ocean Rig UK Ltd. Turkey Branch    Turkey    Branch Office
148.    Ocean Rig 1 Inc.    Marshall Islands    Leiv Eiriksson
149.    Ocean Rig 2 Inc.    Marshall Islands    Eirik Raude
150.    Drillship Hydra Owners Inc    Marshall Islands    Corcovado
151.    Drillship Paros Owners Inc.    Marshall Islands    Olympia
152.    Drillship Kithira Owners Inc.    Marshall Islands    Poseidon
153.    Drillship Skopelos Owners Inc.    Marshall Islands    Mykonos
154.    Algarve Finance Ltd.    Marshall Islands    Cash Manager
155.    Alley Finance Ltd.    Marshall Islands    Cash Manager
156.    Drillship Skiathos Shareholders Inc.    Marshall Islands    Operating Company
157.    Drillship Skyros Shareholders Inc.    Marshall Islands    Operating Company
158.    Drillship Kythnos Shareholders Inc.    Marshall Islands    Operating Company
159.    Drillship Skiathos Owners Inc.    Marshall Islands    Hull 1979
160.    Drillship Skyros Owners Inc.    Marshall Islands    Hull 2013
161.    Drillship Kythnos Owners Inc.    Marshall Islands    Hull 2032
162.    Ocean Rig 1 Greenland Operations Inc.    Marshall Islands    Operating Company
163.    Ocean Rig Corcovado Greenland Operations Inc.    Marshall Islands    Operating Company
164.    Ocean Rig Olympia Ghana Operations Limited    Ghana    Operating Company
165.    Ocean Rig Poseidon Operations Inc. (formerly Tanzania Operations Inc.)    Marshall Islands    Operating Company

166.    Ocean Rig Do Brasil Serviços De Petroleo Ltda.    Brazil    Operating Company
167.    Ocean Rig Falkland Operations Inc.    Marshall Islands    Operating Company
168.    Drill Rigs Operations Inc.    Marshall Islands    Operating Company
169.    Ocean Rig Olympia Brasil Operations Cooperatief UA    The Netherlands    Operating Company
170.    Ocean Rig Olympia Brasil Operations B.V.    The Netherlands    Operating Company
171.    Drillships Holdings Operations Inc.    Marshall Islands    Holding Company
172.    Drillships Investment Operations Inc.    Marshall Islands    Holding Company
173.    Ocean Rig Rio de Janeiro Serviços de Petroleo Ltda.    Brazil    Customs guarantor
174.    Ocean Rig Drilling Do Brasil Serviços de Petroleo Ltda.    Brazil    Operating Company
175.    Ocean Rig Offshore Management Ltd.    Jersey    Employment Company
176.    Ocean Rig Brasil Cooperatief UA    The Netherlands    Holding Company
177.    Ocean Rig Brasil B.V.    The Netherlands    Operating Company
178.    Ocean Rig Angola Operations Inc.    Marshall Islands    Operating Company
179.    Ocean Rig EG Operations Inc.    Marshall Islands    Operating Company

 

Other Companies    Country of
Incorporation		    Activity
180.    Wealth Management Inc.    Marshall Islands    Investment Company
181.    Pounta Traders Inc.    Marshall Islands    Investment Company
182.    Sunlight Shipholding One Inc    Marshall Islands    Cash Manager
183.    Ialysos Shareholders Limited    Marshall Islands    Cash Manager
184.    OceanFreight Inc.    Marshall Islands    Holding Company