barrel
blank
brick
brick wall
can
clean
container
crude
diesel
distribution
drum
energy
ethanol
expensive
fluid
fuel
gas
gasoline
gel
glossy
graphic
grease
greasy
icon
illustration
industry
liquid
lubricant
mark
metal
metallic
motor
oil
petrol
petroleum
pictogram
pollution
power
rich
shadow
shiny
shopping cart
sign
silhouette
steel
symbol
tank