Here's how much OPEC really makes

The world already knows that the Organization of Petroleum Exporting Countries, or OPEC, can change the fate of the international oil price.

By producing close to 40 % of the world's combined crude oil, OPEC's oil exports represents about 60% of the total petroleum traded internationally.

Read more... http://www.businessinsider.com/heres-how-much-opec-really-makes-2015-4