<P> OPEC 's stated mission is `` to coordinate and unify the petroleum policies of its member countries and ensure the stabilization of oil markets , in order to secure an efficient , economic and regular supply of petroleum to consumers , a steady income to producers , and a fair return on capital for those investing in the petroleum industry . '' The organization is also a significant provider of information about the international oil market . As of May 2017 , OPEC 's members are Algeria , Angola , Ecuador , Equatorial Guinea , Gabon , Iran , Iraq , Kuwait , Libya , Nigeria , Qatar , Saudi Arabia ( the de facto leader ) , United Arab Emirates , and Venezuela , while Indonesia is a former member . Two - thirds of OPEC 's oil production and reserves are in its six Middle Eastern countries that surround the oil - rich Persian Gulf . </P>
<P> OPEC 's stated mission is `` to coordinate and unify the petroleum policies of its member countries and ensure the stabilization of oil markets , in order to secure an efficient , economic and regular supply of petroleum to consumers , a steady income to producers , and a fair return on capital for those investing in the petroleum industry . '' The organization is also a significant provider of information about the international oil market . As of May 2017 , OPEC 's members are Algeria , Angola , Ecuador , Equatorial Guinea , Gabon , Iran , Iraq , Kuwait , Libya , Nigeria , Qatar , Saudi Arabia ( the de facto leader ) , United Arab Emirates , and Venezuela , while Indonesia is a former member . Two - thirds of OPEC 's oil production and reserves are in its six Middle Eastern countries that surround the oil - rich Persian Gulf . </P>
where are the most of the members of opec located
where are the most of the members of opec located
Middle Eastern
Middle Eastern