機器
barrel
business
construction
crude
derrick
diesel
drill
drilling
energy
equipment
exploration
extraction
field
fossil
fuel
gas
gasoline
illustration
industrial
industry
isolated
jack
mining
oil
oilfield
petrol
petroleum
pipe
pipeline
platform
power
production
pump
pumpjack
refinery
resource
rig
rocking
sign
silhouette
supply
symbol
technology
tower
well