system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is there so much oil in the Middle East?
gpt
There isn't more oil in the middle east, it's just that it's the most convenient place to extract it.

Oil come from dead organism, but not just that. You need :

1) Have enough organism concentrated together.
2) Have them slowly heat up over time.
3) Have them trapped so that the oil/gas doesn't escape.

The best place for that to happen is on continental margins. That's why you so often have offshore platform to extract it. 

Not what make the Middle East special? The middle east was a continental margin in the past. The Persian Gulf is what remain of that ancient sea separating the two continent. The Arabian peninsula itself used to be at the bottom of that sea and rised up as that sea closed with the movement of the tectonic plates.