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 Microsite Marine Shipping & You Interactive Tool Toolkit: the Facts on Marine Shipping in Canada Infographic 2018 Public Opinion Poll: Canadians’ Attitudes Towards Marine Shipping – 2