Infographic Tanker Sizes and Capacities Share There are five principle sizes of oil tankers. In ascending order based on size, the smallest is the Panamax, Aframax, Suezmax, VLCC and the ULCC. Published March 22, 2018 | Last modified on June 20, 2024 You may also be interested in Infographic Canadian Ports and Facilities that Handle Most Oil Tankers Infographic Areas of Response & Response Assets Video Clear Seas: Dr. John W. Hepburn, Vice President Research – CIFAR