Countries in the Organization of the Petroleum Exporting Countries hold about 80% of the world#39;s proven oil reserves, most of which is concentrated among Middle Eastern members.
Countries in the Organization of the Petroleum Exporting Countries hold about 80% of the world#39;s proven oil reserves, most of which is concentrated among Middle Eastern members. Countries in the Organization of the Petroleum Exporting Countries hold about 80% of the world#39;s proven oil reserves, most of which is concentrated among Middle Eastern members. Moneycontrol Latest News Read More
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