What is the average capacity in barrels of an oil tanker?

The average capacity of an oil tanker varies significantly based on its type. Generally, a small tanker can hold around 10,000 to 30,000 barrels, while a medium-sized tanker typically carries between 50,000 and 100,000 barrels. Larger tankers, such as Very Large Crude Carriers (VLCCs), can transport approximately 200,000 to 320,000 barrels, and the largest Ultra Large Crude Carriers (ULCCs) can hold over 400,000 barrels. Overall, the capacity of oil tankers can range widely depending on their design and purpose.