The bar chart gives information about the production of oil in opec and non-opec countries in the world between 1980 and 2020, and this data is found by the one university. Overall, non-OPEC countires dominated in this area at first years, and after a while the numbers were almost equalized, but the countries that were located in Middle East played the main role for millions of oil production in the last 20 years.
Looking at the initial years first, the crucial part was for producing oil in non-EPIC nations at 11 millions barrels from 1980 to 2000 while around 2 millions oil pruduced in Middle East. However, thr roles changed after some times. Countires in the Middle East dominated roughly 7 million in 2000 and 2010 when other new countries were advented, these and non-EPIC had figures over 5 millions.
moving on the last years, oil production increased dramatically in Middle East by over 15 millions. Simulteniously, OPEC and Non-epic countries had similar numbers, more than a million in both.
