The list is incomplete; there are more than 65,000 oil and gas fields of all sizes in the world. However, 94 % of known oil is concentrated in fewer than 1500 giant and major fields. Most of the world 's largest oilfields are located in the Middle East, but there are also supergiant (> 10 billion bbls) oilfields in Brazil, Mexico, Venezuela, Kazakhstan, and Russia.
where is most oil found in the world
the Middle East