Venezuela holds the world's largest proven crude oil reserves at 303.2 billion barrels, followed by Saudi Arabia (267.2) and Iran (208.6). Worldwide, about 1.74 trillion barrels are proven — figures below are hand-checked against official publications, with each row's source and vintage shown.
| # | Country | Bn bbl | As of | Reserves |
|---|---|---|---|---|
| 1 | Venezuela ⓘ | 303.2 | 2023 | |
| 2 | Saudi Arabia ⓘ | 267.2 | 2023 | |
| 3 | Iran ⓘ | 208.6 | 2023 | |
| 4 | Canada ⓘ | 163.6 | 2023 | |
| 5 | Iraq | 145.0 | 2023 | |
| 6 | United Arab Emirates | 113.0 | 2023 | |
| 7 | Kuwait | 101.5 | 2023 | |
| 8 | Russia ⓘ | 80.0 | 2023 | |
| 9 | Libya ⓘ | 48.4 | 2023 | |
| 10 | United States ⓘ | 48.3 | 2022 | |
| 11 | Nigeria | 37.5 | 2023 | |
| 12 | Kazakhstan | 30.0 | 2023 | |
| 13 | China | 26.2 | 2023 | |
| 14 | Qatar ⓘ | 25.2 | 2023 | |
| 15 | Brazil ⓘ | 15.9 | 2023 |
Hand-curated from the OPEC Annual Statistical Bulletin, the EIA and national agencies (hover ⓘ for per-country caveats). Proven reserves change with prices and technology, and some national figures are not independently audited. See also world production & consumption, strategic (government) reserves — a different concept — and the glossary.
Venezuela has the world's largest proven oil reserves at about 303.2 billion barrels (2023), ahead of Saudi Arabia (267.2 billion) and Iran (208.6 billion). Note that reserves rank differs from production rank — the United States produces the most oil despite far smaller proven reserves.
Roughly 1.7 trillion barrels of proven crude oil reserves remain worldwide. At current consumption of about 103 million barrels per day (~38 billion barrels a year), that is on the order of 45–50 years of supply — but this figure has stayed roughly constant for decades, because new discoveries, technology and prices keep converting resources into proven reserves.
Proven (or "proved") reserves are volumes that can be recovered with reasonable certainty (typically ≥90% confidence) under existing economic and operating conditions. They exclude oil that is technically present but not currently economic to extract — which is why reserve figures move with oil prices and technology, not just with discoveries.
Most of Venezuela's reserves are extra-heavy crude in the Orinoco Belt, which is expensive to produce and upgrade. Combined with underinvestment and sanctions, actual output is a small fraction of what its reserve base would suggest — a reminder that reserves measure what is in the ground, not what reaches the market.