<P> 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 . </P>
<P> 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 . </P>
where is most oil found in the world
where is most oil found in the world
the Middle East
the Middle East