Which country is the world's top oil exporter?

bcoz Saudi Arabia have no trees much . wherever trees and plants are few there will be petroleum

When it runs out for the Saudis, the prevalence of Islam will deteriorate. One of their thinkers predicted this.

Player #6852065, you are correct. The USA has been the largest producer every year of this decade.

not correct answer in 2020. It's the u.s. with the help of fracking.