background
blue
business
chemical
crude
depot
ecology
energy
environment
farm
flammable
flammable liquids
gas
gasoline
harbor
harbour
large
metal
oil
petrochemical
petrol
petroleum products
pier
pollution
port
product
production
refinery
safety
security
silo
sky
stationary
steel tanks
storage tank
tank
tank farm
tanker
technology
terminal
trade
vertical
vessel
water
white
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