Oa
Flag
Company
Country
Oost Atlantic Lijn B.V., Rotterdam
O.A. Müller, Hamburg
Germany
Otto A.Müller Germany
Othon A. Stathatos, Athens

white flag, blue greek letters "O.A.S.".

Greece
Karta och Oaxens Kalkbruk A/B Sweden
Odd Berg, Oslo
Norway
Ocean Base Co., Ltd.
Hong Kong
Alpha Reefer Transport GmbH., Hamburg
Germany
Opielok Reederei GmbH Germany
L. Dens & Co.

S.A. Belge d'Armement et Navigation Océan

(Belgian Shipping and Navigation Co. Ltd "Ocean").

Belgium
Ocean Dominion Shipping Ltd. United States
Ocean Weather Ships UK
Ontario Car Ferry Co.
United States
Ocean Chartering und Transport; Mühle & Sachs GmbH & Co Germany
Rederiet Otto Danielsen
Denmark
Old Dominion Line
United States
Ostsee-Dampfschiffahrts-Gesellschaft
Germany
Oeltrans Befrachtungsgesellschaft (freighting company) mbH
Germany
d'Orbigny & Faustin France
O.F.Alsen&Sohn Germany
Insulinde Tankstoomboot Maatschappij, Amsterdam