OPEC Share of World Crude Oil Reserves
Source: OPEC Annual Statistical Bulletin 2022
According to current estimates, 80.4% (1,241.82 billion barrels) of the world's proven oil reserves are located in OPEC Member Countries, with the bulk of OPEC oil reserves in the Middle East, amounting to 67.1% of the OPEC total.
For more information:
OPEC Annual Statistical Bulletin 2022