The middle east accounts for 34.5% (over one third) of global oil production according to BP’s Energy Statistical review.

https://www.bp.com/content/dam/bp/en/corporate/pdf/energy-economics/statistical-review-2017/bp-statistical-review-of-world-energy-2017-full-report.pdf

That does this mean ?

Iran 5.0%
Iraq 4.8%
Kuwait 3.4%
Oman 1.1%
Qatar 2.1%
Saudi Arabia 13.4%
Syria no figure
United 4.4%
Yemen  no figure
Other Middle East 0.2%

Total = 34.5%

This 34.5% is 31,789,000 barrels of oil a day.

the value is that oil is worth about $70 a barrel, thus:-

31,789,000 barrels of oil a day x $70 = $2,225,230,000.00

That is $2.225 Billion a day.