Carriers that are employed in international crude oil trade. The size of tanker that can be used in any trade (commercial voyage between a port of origin and destination) is dependent on the tanker’s length and loaded depth and the size of the loading and unloading ports. The larger ships are used because they reduce the cost to transport a barrel of crude oil. A VLCC is a tanker of 150,000 to 300,000 dwt. VLCC of 250 KT is the largest capacity that can be accommodated in Israeli ports