Energy: proved oil reserves (in 1000 million barrels)

rank country end 1989 end 1999 end 2008 end 2009 percent of total
1. Saudi Arabia 260.1 262.8 264.1 264.6 19.85%
2. Venezuela 59.0 76.8 172.3 172.3 12.92%
3. Iran 92.9 93.1 137.6 137.6 10.32%
4. Iraq 100.0 112.5 115.0 115.0 8.63%
5. Kuwait 97.1 96.5 101.5 101.5 7.61%
6. United Arab Emirates 98.1 97.8 97.8 97.8 7.34%
7. Russian Federation - 59.2 74.3 74.2 5.57%
8. Libya 22.8 29.5 44.3 44.3 3.32%
9. Kazakhstan - 25.0 39.8 39.8 2.99%
10. Nigeria 16.0 29.0 37.2 37.2 2.79%
11. Canada 11.6 18.3 33.2 33.2 2.49%
12. USA 34.3 29.7 28.4 28.4 2.13%
13. Qatar 4.5 13.1 26.8 26.8 2.01%
14. China 16.0 15.1 14.8 14.8 1.11%
15. Angola 2.1 5.1 13.5 13.5 1.01%
16. Brazil 2.8 8.2 12.8 12.9 0.97%
17. Algeria 9.2 11.3 12.2 12.2 0.92%
18. Mexico 52.0 21.5 11.9 11.7 0.88%
19. Norway 8.4 10.9 7.5 7.1 0.53%
20. Azerbaijan - 1.2 7.0 7.0 0.53%
21. Sudan 0.3 0.3 6.7 6.7 0.50%
22. Ecuador 1.4 4.4 6.5 6.5 0.49%
23. India 4.3 5.0 5.8 5.8 0.44%
24. Oman 4.3 5.7 5.6 5.6 0.42%
25. Malaysia 3.7 5.0 5.5 5.5 0.41%
26. Vietnam 0.1 1.8 4.7 4.5 0.34%
27. Egypt 4.3 3.8 4.2 4.4 0.33%
28. Indonesia 5.1 5.2 3.7 4.4 0.33%
29. Australia 3.1 4.7 4.2 4.2 0.32%
30. Gabon 1.0 2.6 3.7 3.7 0.28%
31. United Kingdom 3.8 5.0 3.1 3.1 0.23%
32. Yemen 2.0 1.9 2.7 2.7 0.20%
33. Argentina 2.2 3.1 2.5 2.5 0.19%
34. Syria 2.0 2.3 2.5 2.5 0.19%
35. Rep. of Congo (Brazzaville) 0.7 1.7 1.9 1.9 0.14%
36. Equatorial Guinea - 0.6 1.7 1.7 0.13%
37. Colombia 2.0 2.3 1.4 1.4 0.11%
38. Brunei 1.2 1.3 1.1 1.1 0.08%
39. Peru 0.8 0.9 1.1 1.1 0.08%
40. Italy 0.8 0.9 1.0 0.9 0.07%
41. Denmark 0.6 0.9 0.8 0.9 0.07%
42. Chad - - 0.9 0.9 0.07%
43. Trinidad & Tobago 0.6 0.8 0.8 0.8 0.06%
44. Uzbekistan - 0.6 0.6 0.6 0.05%
45. Turkmenistan - 0.5 0.6 0.6 0.05%
46. Tunisia 1.8 0.3 0.6 0.6 0.05%
47. Romania 1.2 1.2 0.5 0.5 0.04%
48. Thailand 0.2 0.4 0.5 0.5 0.04%
  World 1,006.4 1,085.6 1,332.4 1,333.1 100%
source: "Statistical Review of World Energy 2010",BP.
note: a barrel is equal to 159 litres (42 gallons).
note: Canadian oil sands have another 143.3 bln proved reserves.