| Rank | Barrels | Region | Country | % Correct |
|---|---|---|---|---|
| 2 | 267,026,000,000 | Middle East | Saudi Arabia | 100%
|
| 10 | 47,053,000,000 | North America | United States | 100%
|
| 15 | 12,999,000,000 | South America | Brazil | 95%
|
| 3 | 167,896,000,000 | North America | Canada | 95%
|
| 4 | 155,600,000,000 | Middle East | Iran | 95%
|
| 5 | 145,019,000,000 | Middle East | Iraq | 95%
|
| 12 | 30,000,000,000 | Central Asia | Kazakhstan | 95%
|
| 8 | 80,000,000,000 | Eastern Europe | Russia | 95%
|
| 1 | 302,809,000,000 | South America | Venezuela | 95%
|
| 16 | 12,200,000,000 | North Africa | Algeria | 91%
|
| 13 | 25,620,000,000 | East Asia | China | 91%
|
| 23 | 4,600,000,000 | South Asia | India | 91%
|
| 6 | 101,500,000,000 | Middle East | Kuwait | 91%
|
| 19 | 7,300,000,000 | North America | Mexico | 91%
|
| 14 | 25,244,000,000 | Middle East | Qatar | 91%
|
| 7 | 97,800,000,000 | Middle East | United Arab Emirates | 91%
|
| 11 | 36,972,000,000 | West Africa | Nigeria | 86%
|
| 21 | 6,611,000,000 | Northern Europe | Norway | 86%
|
| 22 | 5,373,000,000 | Middle East | Oman | 86%
|
| 17 | 8,273,000,000 | Central Africa | Angola | 82%
|
| 24 | 4,400,000,000 | Middle East | Egypt | 82%
|
| 9 | 48,363,000,000 | North Africa | Libya | 82%
|
| 20 | 7,000,000,000 | West Asia | Azerbaijan | 77%
|
| 18 | 8,273,000,000 | South America | Ecuador | 77%
|
| 25 | 4,400,000,000 | Southeast Asia | Vietnam | 73%
|