Jo Tankers, based in Norway, was one of the world's main providers of deep-sea transportation services for chemicals and other high value liquids.
Since 1915 Odfjell family in Bergen were involved in shipping.
As a consequence the Jo Tankers' vessels named after trees.
Ships aging above 25 years are considered too old for most major oil compagnies to be accepted as charter.
This article related to a Norwegian ship transport company is a stub.