Oil reserves remain a central pillar of the global energy system, underpinning economies and shaping geopolitical influence. Countries with the highest proven reserves enjoy a strategic advantage, as oil continues to power transportation, industry, and electricity generation worldwide. Beyond their economic value, these reserves play a critical role in international trade and political relations, positioning oil-rich nations as key players on the world stage.

Here are top 10 countries with the Largest Reserves in 2025

1. Venezuela – 303 billion barrels

Venezuela remains the world leader in proven oil reserves, thanks to its vast heavy crude deposits in the Orinoco Belt. However, production remains low—averaging 742,000 barrels per day in 2023—due to international sanctions, ageing infrastructure, and ongoing political instability.

2. Saudi Arabia – 267 billion barrels

Saudi Arabia holds some of the most accessible and cost-effective reserves globally. The kingdom remains a key player in global oil markets through the influence of state-run Saudi Aramco and its leadership role within OPEC.

3. Iran – 209 billion barrels

With massive reserves under its belt, Iran remains a major force in oil geopolitics. However, international sanctions continue to restrict its full production potential and market access.

4. Canada – 168 billion barrels

Canada’s oil wealth is primarily located in Alberta’s oil sands, accounting for over 95% of its reserves. While extraction costs are high, strong ties to U.S. markets and steady investment help sustain production levels.

5. Iraq – 145 billion barrels

Iraq plays a critical role in the Middle Eastern oil landscape, leveraging its vast reserves for strong export capacity. However, its oil sector occasionally faces setbacks due to regional security concerns.

6. United Arab Emirates – 113 billion barrels

The UAE’s oil reserves, largely located in Abu Dhabi, are managed by state oil giant ADNOC. While oil remains central, the country is actively investing in economic diversification across tourism, finance, and renewable energy.

7. Kuwait – 101.5 billion barrels

Approximately 70% of Kuwait’s reserves are found in the massive Burgan Field. The country continues to invest heavily in refining and petrochemical capacity, including major projects like the Al Zour refinery.

8. Russia – 80 billion barrels

Russia’s reserves are spread across Siberia and Arctic regions. Despite facing sanctions from the West, it remains a top global producer and a strategic member of the OPEC+ alliance.

9. United States – 68.8 billion barrels

With significant shale oil reserves, the U.S. ranks ninth globally but leads the world in oil production. As of April 2025, U.S. output reached a record 13.2 million barrels per day.

10. Libya – 48.4 billion barrels

Libya holds Africa’s largest proven oil reserves, mainly located in the Sirte Basin. Political instability continues to disrupt output, but the nation’s reserve base remains robust.