International Association of Independent Tanker Owners

International Association of Independent Tanker Owners (INTERTANKO) is the association of the owner of the independent tankers in the world. It started in 1970 to speak out for the independent tankers' owners, non-oil companies and non-state controlled tanker owners, for the safe shipping of oil and chemicals and to act as a forum for marine policy creation. Membership is open to independent tanker owners and operators of oil and chemical tankers, i.e. non-oil companies and non-state controlled tanker owners, who fulfil the Association's membership criteria. Independent owners operate some 80% of the world's tanker fleet and the vast majority are INTERTANKO members. As of January 2012, the organisation had 235 members, whose combined fleet comprises some 3,380 tankers totalling 285 million dwt. INTERTANKO's associate membership stands at some 320 companies with an interest in shipping of oil and chemicals.

INTERTANKO are responsible for the compilation of several marine industry books and publications. Witherby Seamanship are the sole official distributor and editors of INTERTANKO publications. Their central offices are in Oslo, Norway and in London.