ballast
big
boat
bulk
cargo
carrier
carry
crude
dock
economy
empty
energy
freight
fuel
global
harbor
heavy
huge
import
industrial
industry
large
logistics
nautical
naval
navigation
oil
oil tanker
old
out
petrol
port
pump
rotterdam
sail
sea
ship
shipment
shipping
supertanker
tank
tanker
trade
vessel
water
world