The civil war in Syria is causing a terrible humanitarian crisis. Yet Syria should be a very wealthy country as it has 2,500 Million barrels of oil under this land.

(the UK has 3,000 Million barrels of oil). What is the potential value of this oil ?

2,500 Million = 2,500,000,000

Crude trades at $39.27 a barrel. That is a £27.59.

Thus:-
2,500,000,000 x £27.59 = £68,975,000,000

That is £65,975 Million which is £68 Billion.