Oil pump jack operating in a green field under a blue sky, extracting crude oil with equipment visible in background.
Palabras clave
oil,
pump,
jack,
worked,
green,
field,
blue,
sky,
extract,
crude,
power,
mechanism,
visible,
process,
mining,
maintenance,
unit,
instrument,
energy,
horizon,
platform,
crude oil,
structure,
production,
system,
reservoir,
device,
equipment,
nature,
output
){kind=link}