機器
and at night
and the reservoir
at night
barrels
black
blue
commercial
construction
crude oil
derrick
diesel
drill
drilling
drilling rig
electricity
energy
environment
equipment
fuel
gasoline
in the evening
industrial
jack
natural
natural gas
naturally
oil
oil field
orange
outdoor
pipelines
plants
production
pump
refineries
resources
silhouette
sunshine
supplies
technology
the exploration
the oil wells
the sky
the sunrise
the sunset
tube