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.
Citation formats
Countries with greatest recoverable oil reserves by reserve category 2020
Saudi Arabia's proved oil reserves amount to some *** billion barrels, according to conservative estimates. Taking into account risked prospective resources in yet undiscovered fields and contingent resources in discoveries, recoverable reserves in Saudi Arabia could be as high as *** billion barrels. This compares to proved reserves of ** billion barrels in the United States.
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Oil & Gas Journal. (June 17, 2020). Volume of global recoverable oil reserves by country and reserve category as of 2020 (in billion barrels) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/625833/global-recoverable-oil-reserves-by-country/
Oil & Gas Journal. "Volume of global recoverable oil reserves by country and reserve category as of 2020 (in billion barrels)." Chart. June 17, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/625833/global-recoverable-oil-reserves-by-country/
Oil & Gas Journal. (2020). Volume of global recoverable oil reserves by country and reserve category as of 2020 (in billion barrels). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/625833/global-recoverable-oil-reserves-by-country/
Oil & Gas Journal. "Volume of Global Recoverable Oil Reserves by Country and Reserve Category as of 2020 (in Billion Barrels)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Jun 2020, /statistics/625833/global-recoverable-oil-reserves-by-country/
Oil & Gas Journal, Volume of global recoverable oil reserves by country and reserve category as of 2020 (in billion barrels) ÌÇÐÄÆƽâ°æ, /statistics/625833/global-recoverable-oil-reserves-by-country/ (last visited July 31, 2026)
Volume of global recoverable oil reserves by country and reserve category as of 2020 (in billion barrels) [Graph], Oil & Gas Journal, June 17, 2020. [Online]. Available: /statistics/625833/global-recoverable-oil-reserves-by-country/
