Aristotle Onassis of his fleet, while having trouble managing their own fleets, which operated under US flags and thus at high cost. The high profitability of the Onassis fleet has been attributed in large part to his disregard for standards that normally govern international shipping. For example, after his Liberian registered tanker SS Arrow ran aground and spilled oil into Chedabucto Bay in 1970, still the most significant oil spill off Canada’s East Coast (about 25% of the amount spilled by the Exxon Valdez in Alaska in 1989), there was a Commission of Inquiry. Led by Dr Patrick McTaggart-Cowan, executive director of
History of the oil tanker the newly discovered oil fields in Texas — such as Spindletop — and Oklahoma, which gave opportunities for new oil companies as Gulf Oil and Texas Fuel Company, later Texaco. Avoiding the use of Standard Oil's pipe line system, they started using tankers to get their oil to the East Coast. In combination with the oil fields discovered in Mexico and Venezuela, this caused a rise in the demand for tankers, which gave opportunities for the first independents, such as the Norwegian Wilh. Wilhelmsen, that launched its first tanker in 1913. The fleet oiler , launched on April 17, 1915,