background
banana
barrel
big
black
chemical
commerce
concept
container
cost
crude
currency
diesel
dollar
drum
economy
energy
erection
expensive
finance
fossil
fruit
fuel
gallon
gas
gasoline
health
isolated
large
length
male
man
market
member
metaphor
money
oil
penis
petroleum
pollution
power
price
problem
production
sex
size
symbol
trade
wealth
white