Proven oil reserves. ( in billion barrels) 1barrel =159 litres
Venezuela: 300.8
Saudi: 266.4
Canada: 169.7
Iran: 158.4
Iraq: 142.5
Kuwait: 101.5
UAE: 97.8
Russia: 80
Libya: 74 US: 39.2
Nigeria: 37
Kazakhstan: 30
China: 25.6
Bahrain: 0.1 (before discovery of 80 billion barrels)
(Source: US EIA)