barrel
black
business
chemical
combust
company
concept
conceptual
design
diesel
dispenser
distillation
drop
energy
environment
exploration
factory
filling
frame
fuel
gas
gasoline
graphic
icon
illustration
industrial
industry
label
manufacture
minerals
motor
natural
nature
oil
petrol
petroleum
pictogram
poster
power
product
pump
refine
refinery
resource
station
supply
symbol
tower