The given bar graph depicts the information about the manufacturing of global oil in OPEC middle east, other OPEC and non-OPEC nations in the year of 1980 to 2020.
Overall, it can be clearly seen that in the initial year, the oil production in non-OPEC nation was at peak while OPEC middle east showed the opposite trend , but in the last year this trend was reversed.
Between 1980 and 200 comma non OPEC countries were the highest contributor in the oil production nearly 8 billion barrels per day, While opec middle east countries produce only 0.3 million barrels oil every day without any contribution of other opec countries. However, in the following decade(2000-10), a huge increment was seen in the manufacturing of oil by opec middle east nations around eight million barrels each day.
Apart from this, other OPEC nations also gave contribution in oil manufacturing in these decades by nearly five million barrels each day same as the non-opec global oil production. From 2010 to 2020 a drastic change was witnessed in oil production in opec middle east nation as they produce approximately 15 to 16 million barrels per day, whereas a marginal production was contributed by the other opec and non-opecc ountries.