Kenai Peninsula Borough Courthouse, Soldotna, Alaska
 

ENGINEERING 101
 
RESERVE CATEGORY ABBREVIATION
PROVED DEVELOPED RESERVES - refers to those estimates of proved reserves that will be recovered from existing wells utilizing existing facilities or requiring only minor additional expenditures.
PROVED PRODUCING PDP
PROVED SHUT-IN PDSI
PROVED BEHIND PIPE PDBP
PROVED UNDEVELOPED PUD
PROBABLE RESERVES - should be in a formation that is a known producer in the general area or geologic province. In the absence of commercial production, production tests, drillstem test or formation test should indicate the presence of hydrocarbons in the reservoir in question.
PROBABLE PRODUCING PBP
PROBABLE SHUT-IN PBSI
PROBABLE BEHIND PIPE PBBP
PROBABLE UNDEVELOPED PBUD
POSSIBLE RESERVES - are to be determined on the basis of engineering, geological, and geophysical analyses which indicate the existence of recoverable hydrocarbons, but not to the level of proof required for probable reserves.
POSSIBLE PRODUCING PSP
POSSIBLE SHUT-IN PSSI
POSSIBLE BEHIND PIPE PSBP
POSSIBLE UNDEVELOPED PSUD
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