Which country is ranked fourth in proven oil reserves?

• A. Iran
• B. Iraq
• C. UAE
• D. Saudi Arabia

Answer: (B)

Proven oil reserves are the amount of crude oil that is known to exist and can be recovered economically with current technology and prices. Countries are ranked by the size of these recoverable reserves. In this item, the country in question is the one with the fourth-largest proven reserves in the given data, meaning only three countries have larger proven reserves in that context. It’s important to remember that these rankings can shift over time as new discoveries are made or as reserve estimates are revised, so different sources or years may show small differences. The key idea is that the position is determined by the relative size of proven, economically recoverable oil reserves, not by production levels or potential resources.