Countries with greatest recoverable oil reserves by reserve category 2020

Volume of global recoverable oil reserves by country and reserve category as of 2020

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Release date

June 2020



Survey time period


Supplementary notes

Reserve categories as follows:
1P=Proved reserves (conservative estimate);
2P=proved and probable reserves (most likely estimate);
2PC=proved and probable reserves plus mean contingent recoverable resources;
2PCX=most likely estimate for existing fields, contingent resources in discoveries, risked prospective resources in yet undiscovered fields.

** Data for United States, Brazil, China, and Mexico closely reflects official estimates.

*** Data for Russia, Kazakhstan, and Qatar closely reflects official estimates.

**** Data for Saudi Arabia, Iraq, UAE, Kuwait and Nigeria closely reflect official estimates; whereas data for Canada, Iran and Venezuela was lower than official estimates.

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