The OPEC countries in 2015-2016 due to the fall in oil prices, lost more than $ 1 trillion in export revenues. The Secretary-General of the Organization, Mohammad Barkindo, made such an assessment in the framework of the KOGS-2017 Annual Oil and Gas Conference.

"Over the past two years, we have seen not only investment decline, but also a decline in oil revenues. Overall, OPEC countries have lost more than 1 trillion dollars in that period, "he said.

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