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
Cordova, Alaska oil tanker ran aground on Bligh Reef northwest of Cordova causing one of the most devastating environmental disasters in North America. The Exxon Valdez oil spill severely affected the area's salmon and herring populations leading to a recession of the local fishing-reliant economy as well as disrupting the general ecology of the area. After many years of litigation, 450 million dollars were awarded for compensatory and punitive damages. Cordova first appeared on the 1910 U.S. Census as an incorporated city. It incorporated the year before in 1909. As of the 2010 United States Census, there were 2,239 people residing in