Reserves estimation. Analysis and prediction of reservoir performance by use of material balance. Primary recovery performance for water influx and solution gas drive reservoirs. Decline curve analysis. Basics of well test analysis. Pressure drawdown and buildup tests. Average reservoir pressure estimation. Drill stem testing and gas well testing. Prerequisite: PET E 295 or PET E 373. PET E 375 cannot be taken for credit if credit has already been obtained in PET E 475.