An oil field is a specific area where oil is extracted from the ground. These fields contain underground reservoirs filled with crude oil, which is a natural resource used for fuel and various products. Oil fields can vary in size and are often located in regions rich in geological formations that trap oil. To extract oil, companies drill wells into the ground, allowing the oil to flow to the surface. The process involves various technologies and methods, including drilling rigs and pumping systems. Oil fields can be found in many parts of the world, contributing significantly to the global energy supply.