This data is based on “the stock of proved reserves of crude oil in barrels (“bbl”). Proved reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated with a high degree of confidence to be commercially recoverable from a given date forward, from known reservoirs and under current economic conditions.”
Country/ Oil – proved reserves (bbl)
1) Venezuela: 297,599,991,808.
2) Saudi Arabia: 267,899,994,112.
3) Canada: 173,100,007,424.
4) Iran: 154,599,997,440.
5) Iraq: 141,399,998,464.
6) Kuwait: 103,999,995,904.
7) United Arab Emirates: 97,800,003,584.
8) Russia: 80,000,000,000.
9) Libya: 48,009,998,336.
10) Nigeria: 37,199,998,976.
Sources: CIA, Index Mundi
Photo by Wilfredor