機器
bolt
construction
crude
drilling
economy
energy
environment
equipment
exploration
extract
extracting
extraction
facility
field
fuel
gas
gasoline
industrial
industry
mineral
money
nodding
oil
oilfield
petroleum
pipe
pipeline
pipework
platform
power
production
profit
pump
pumping
pumpjack
raw
refinery
resource
rig
rocking
technology
tool
unit
work