Crude tanker

A crude tanker is an oil tanker built to carry unrefined crude oil in bulk, with large cargo tanks, an inert gas system, and segregated ballast tanks under MARPOL Annex I. Sizes run from Aframax (around 80,000 to 120,000 dwt) and Suezmax (120,000 to 200,000 dwt) up to the VLCC (200,000 to 320,000 dwt) and ULCC. All newbuildings are double hull, single hull crude tankers having been phased out under MARPOL Annex I. Crude tankers fix on the worldscale freight system and trade the Baltic dirty tanker routes.