| 11. | Proven reserves that can be recovered under existing economic conditions, 2002
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| 12. | Proven reserves of Coal bed gas is about, equal to of standard coal.
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| 13. | Venezuela possesses the world's largest proven reserves outside the Middle East.
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| 14. | Proven reserves are physical reserves that can be extracted at economically viable prices.
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| 15. | Discovered in 2001, Chinguetti has proven reserves of about of oil.
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| 16. | In 1995, the Oil and Gas Journal reported of proven reserves.
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| 17. | Iraq has the second-largest proven reserves of oil in the world.
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| 18. | In 1992 its proven reserve were estimated at 400, 000 million cubic meters.
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| 19. | Production from Congo is very small but has 80 % of proven reserves.
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| 20. | There are still vast stores of proven reserves in the ground.
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