機器
3d
barrel
black
business
crude
derrick
diesel
drill
drilling
ecology
energy
environment
equipment
exploration
extraction
flare
fuel
gas
gasoline
industrial
industry
jack
natural
nature
oil
oilfield
orange
petroleum
pipe
pipeline
plant
platform
power
pump
pumpjack
refinery
resource
rig
silhouette
sky
sun
sunrise
sunset
technology
unit
well