機器
ayoluengo
burgos
business
construction
crude
derrick
diesel
drill
drilling
ecology
energy
environment
equipment
exploration
extraction
facility
fossil
fuel
gas
gasoline
global warming
industrial
industry
jack
nodding
oil
oil field
oilfield
petroleum
pipe
pipeline
plant
platform
pollution
power
pump
pump jack
pumpjack
resource
rig
rocking
rusty
spain
supply
technology
unit
well