1. Russia: 9.5 million

2. Saudi Arabia: 8.3 million

3. United States: 5.4 million

4. Iran: 4.0 million

5. China: 3.8 million

6. Mexico: 2.6 million

7. Canada: 2.6 million

8. United Arab Emirates: 2.4 million

9. Iraq: 2.4 million

10. Kuwait: 2.4 million

11. Venezuela: 2.3 million

12. Nigeria: 2.2 million

13. Norway: 2.1 million

14. Brazil: 2.0 million

15. Angola: 1.9 million

16. Algeria: 1.8 million

17. Libya: 1.7 million

18. Kazakhstan: 1.5 million

19. United Kingdom: 1.3 million

20. Azerbaijan: 1.0 million
 

1. Saudi Arabia: 6.4 million

2. Russia: 5.4 million

3. Iran: 2.2 million

4. Nigeria: 2.1 million

5. United Arab Emirates: 2.0 million

6. Iraq: 1.9 million

7. Angola: 1.8 million

8. Norway: 1.8 million

9. Canada: 1.5 million

10. Kazakhstan: 1.4 million

11. Kuwait: 1.4 million

12. Mexico: 1.3 million

13. Venezuela: 1.3 million

14. Algeria: 1.3 million

15. Libya: 1.2 million

16. Qatar: 975,000

17. United Kingdom: 775,000

18. Azerbaijan: 597,000

19. Oman: 584,000

20. Brazil: 505,000
 
US Energy Information Administration, 2009 statistics