Map of global oil reserves.. 4 Arab countries in the top ten list

Total global oil reserves reached about 1.8 trillion barrels by the end of 2025, an increase of 1% compared to 2024, according to the “Global Energy Review 2026” report issued by the Italian energy company Eni. Venezuela topped the list of countries possessing the most oil reserves in the world, with approximately 303.4 billion barrels, representing 16.8% of the global total, followed by Saudi Arabia in second place with reserves amounting to 267.2 billion barrels, with a share of 14.8%.

Iran came in third place with reserves of 208.6 billion barrels, followed by Canada with about 201.3 billion barrels, then Iraq in fifth place with reserves of 145 billion barrels. The UAE ranked sixth in the world with reserves of 113 billion barrels, followed by Russia with about 107.8 billion barrels, then Kuwait with about 101.5 billion barrels, while Libya and the United States ranked ninth and tenth, respectively.

According to the report, the top ten countries together accounted for about 85.5% of the total global oil reserves, equivalent to 1.54 trillion barrels. Canada recorded the largest annual increase in reserves among these countries, by 7% compared to 2024, while US reserves declined by 2.7%.

Here's a look in the infographic above at the 10 countries with the largest oil reserves in the world by the end of 2025, based on Eni's estimates, based on Inerdata data and other official sources.