"An Aframax ship is an oil tanker smaller than 120,000 metric tonnes and with a breadth not greater than 32.31 m and therefore were unable to pass through the original Panama canal. The term is based on the Average Freight Rate Assessment (AFRA), a tanker rate system created in 1954 by Shell Oil to standardise shipping contract terms.Due to their favorable size, Aframax tankers can serve most ports in the world."@en .