Answer:
One effect or event that has affected the lives of people in the Middle East, and that did not result from increased oil production is sectarian violence.
The origin of sectarian violence can be traced in two moments:
In a country like Syria, ethnic and religious conflict has led to a civil war that has lasted for almost a decade. Even if increased oil production might be a factor for the war, it is not the main cause, the main causes are those two described above.