Oil Pumpjack Diagram - Energy Infrastructure Visual Guide #116437 (License: Personal Use)

This vector-style illustration shows a traditional oil pumpjack (also called a nodding donkey) with a green steel derrick structure and two yellow-and-black striped counterweights. The walking beam mechanism is clearly rendered to demonstrate the reciprocating motion used to lift crude oil from underground reservoirs. Designed for clarity, it emphasizes functional components without extraneous detail.

Used on energy education pages, oil & gas industry websites, sustainability reports, or engineering curriculum materials; matches user intent for visual explanation of petroleum extraction equipment.