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3P = Proven P90 + Probable P50 + Possible P10
2P = Proven P90 + Probable P50
1P =  Proven P90Probable P50Possible P10
Proven developed (PD)Proven Undeveloped (PUD)


See Also


Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology / Petroleum Reservoir / Hydrocarbon Reserves / Hydrocarbon Reserves Classification

[ Russian Hydrocarbon Reserves Uncertainty Categories ]

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