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
Exxon exclusively. In Colombia, Japan, and formerly Malaysia, both the Esso and Mobil brands are used, and Esso and Mobil in Japan will be rebranded as ENEOS in 2020, while Esso and Mobil in Malaysia were fully rebranded as Petron in 2013. Exxon Exxon was the brand name of oil and natural resources company Exxon Corporation, prior to 1972 known as Standard Oil Company of New Jersey. In 1999, Exxon Corporation merged with Mobil to form ExxonMobil. The "Exxon" brand is still used by ExxonMobil's downstream operations as a brand for certain gas stations, motor fuel and related products (the highest