Pumpjack
A pumpjack is a mechanical device used in the oil industry to extract crude oil from underground reservoirs. It operates by converting the rotary motion of a motor into a reciprocating motion, which lifts oil to the surface. The pumpjack is often seen in oil fields, characterized by its distinctive "nodding" motion.
The main components of a pumpjack include the horsehead, which moves up and down, and the pump, located below ground. This equipment is essential for oil extraction, especially in areas where the natural pressure of the oil reservoir is insufficient to bring the oil to the surface on its own.