Double-hulled tanker Double-hulled tanker A double-hulled tanker refers to an oil tanker which has a double hull. They reduce the likelihood of leaks occurring than in single-hulled tankers, and their ability to prevent or reduce oil spills led to double hulls being standardized for oil tankers and other types of ships including by the International Convention for the Prevention of Pollution from Ships or MARPOL Convention. After the Exxon Valdez oil spill disaster in Alaska in 1989, the US Government required all new oil tankers built for use between US ports to be equipped with a full double hull. A number of
NEPCO 140 oil spill NEPCO 140 oil spill The NEPCO 140 Oil Spill took place in 1976 near Clayton, New York when the NEPCO 140 ran aground while traveling inland, spilling an estimated of oil into the Saint Lawrence River. On June 23, 1976, the tugboat "Eileen C" was pushing the NEPCO 140 barge, filled with crude oil, when it ran aground in the American Narrows, off Wellesley Island, in the Thousand Islands region. The Captain had not made a large enough adjustment to his course, when realizing the vessel was off-track in the thick fog.<ref name="Suspension_Revocation/Commandant_Decisions"></ref> Upon running aground, the barge ruptured two