Black gold billionaires - the 10 biggest oil producing countries - 1 views
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Alex Parker on 06 Jan 15The world's 10 biggest oil producing countries account for over 65% of the world's total oil output with Saudi Arabia, the United States and Russia - the top 3 oil producers - contributing significantly more than all seven other countries put together.Offshore-technology.com profiles the 10 biggest oil producing countries based on the latest production data.