Oil reserves, billion barrels, 2021 - Country rankings:
The average for 2021 based on 187 countries was 8.87 billion barrels.The highest value was in Venezuela: 303.81 billion barrels and the lowest value was in Afghanistan: 0 billion barrels. The indicator is available from 1980 to 2021. Below is a chart for all countries where data are available.
Measure: billion barrels; Source: The U.S. Energy Information Administration
* indicates monthly or quarterly data series