| 31. | Cusiana has 2 . 5 billion barrels of proven reserves.
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| 32. | Its proven reserves are equivalent to about 218 million barrels.
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| 33. | Iraq has the world's second-largest proven reserves of crude oil.
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| 34. | They together control half the world's proven reserves of oil.
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| 35. | It is regarded by some as somewhat less strict than the SPE proven reserves.
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| 36. | Jilin Oil Group " has proven reserves, " said Chen.
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| 37. | Regulatory and contractual conditions may change, and also affect the amount of proven reserves.
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| 38. | With Union Texas, Arco will acquire proven reserves equivalent to 573 million barrels of oil.
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| 39. | The field was assessed to have proven reserves of 90 million barrels of oil equivalent.
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| 40. | Its proven reserves were at the close of 2006.
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