Probable Reservoir is the additional reservoir which analysis of geoscience and engineering data indicate that is less likely to be recovered than proved reserves (P90) but more certain to be recovered than possible reserves (P10). The Probable Reservoir (P50) is equally likely that actual remaining quantities recovered will be greater than or less than the sum of the estimated Proved plus Probable Reserves. (Refer to the P50 (and P90, Mean, Expected and P10))
Related Definitions in the Project: The Plant and Process Unit; Upstream Engineering
