Energy: proved oil reserves (in 1000 million barrels)

rank country end 1986 end 1996 end 2005 end 2006 percent of total
1. Saudi Arabia 169.7 261.4 264.2 264.3 21.88%
2. Iran 92.9 92.6 137.5 137.5 11.38%
3. Iraq 72.0 112.0 115.0 115.0 9.52%
4. Kuwait 94.5 96.5 101.5 101.5 8.40%
5. United Arab Emirates 97.2 97.8 97.8 97.8 8.09%
6. Venezuela 55.5 72.7 80.0 80.0 6.62%
7. Russian Federation na na 79.1 79.5 6.58%
8. Libya 22.8 29.5 41.5 41.5 3.43%
9. Kazakhstan na na 39.8 39.8 3.29%
10. Nigeria 16.1 20.8 36.2 36.2 3.00%
11. USA 35.1 29.8 29.9 29.9 2.47%
12. Canada 11.7 11.0 17.1 17.1 1.42%
13. China 17.1 16.4 16.2 16.3 1.35%
14. Qatar 4.5 3.7 15.2 15.2 1.26%
15. Mexico 54.9 48.5 13.7 12.9 1.07%
16. Algeria 8.8 10.8 12.3 12.3 1.02%
17. Brazil 2.4 6.7 11.8 12.2 1.01%
18. Angola 1.4 3.7 9.0 9.0 0.74%
19. Norway 6.1 11.6 9.6 8.5 0.70%
20. Azerbaijan na na 7.0 7.0 0.58%
21. Sudan 0.3 0.3 6.4 6.4 0.53%
22. India 4.6 5.5 5.9 5.7 0.47%
23. Oman 4.0 5.3 5.6 5.6 0.46%
24. Ecuador 1.2 3.5 4.9 4.7 0.39%
25. Indonesia 9.0 5.0 4.3 4.3 0.36%
26. Australia 3.2 3.9 4.2 4.2 0.35%
27. Malaysia 3.5 5.0 4.2 4.2 0.35%
28. United Kingdom 5.3 5.0 3.9 3.9 0.32%
29. Egypt 4.5 3.8 3.7 3.7 0.31%
30. Vietnam - 0.9 3.1 3.3 0.27%
31. Syria 1.6 2.5 3.0 3.0 0.25%
32. Yemen 0.1 0.2 2.9 2.9 0.24%
33. Gabon 0.6 2.8 2.1 2.1 0.17%
34. Argentina 2.2 2.6 2.0 2.0 0.17%
35. Rep. of Congo (Brazzaville) 0.7 1.6 1.9 1.9 0.16%
36. Equatorial Guinea - 0.6 1.8 1.8 0.15%
37. Colombia 1.7 2.8 1.5 1.5 0.12%
38. Denmark 0.4 0.9 1.3 1.2 0.10%
39. Brunei 1.5 1.1 1.1 1.1 0.09%
40. Peru 0.5 0.8 1.1 1.1 0.09%
41. Chad - - 0.9 0.9 0.07%
42. Trinidad & Tobago 0.6 0.7 0.8 0.8 0.07%
43. Italy 0.6 0.7 0.8 0.7 0.06%
44. Tunisia 1.8 0.3 0.7 0.7 0.06%
45. Uzbekistan na na 0.6 0.6 0.05%
46. Turkmenistan na na 0.5 0.5 0.04%
47. Thailand 0.1 0.2 0.5 0.5 0.04%
48. Romania 1.4 1.0 0.4 0.4 0.03%
  World 877.4 1,049.0 1,209.5 1,208.2 100%
source: "Statistical Review of World Energy June 2007",BP.
note: a barrel is equal to 159 litres (42 gallons).