A numerical reservoir simulation and hydrodynamic study of the Clarke Lake Slave Point 'A' Pool has been udertaken to determine if the observed pressure variations and water/gas ratios from producing wells is a function of local compartmentalization. Additional objectives include predicting the performance of infill wells and net inflow/outflow of gas from the Permit areas. The model predicted that a total of 163 bscf gas has been produced from the south area by wells within permit 144. With no additional infill drilling, gas will continue to be produced from the south area. Predictions for 7 new infill wells show that both wells drilled in the southern region do not recover significant amounts of gas reserves. The remaining 5 wells recover between 2.9 and 16.0 bscf. However, the gas produced by these infill wells is offset by a decrease in gas recovery by nearby existing wells. An economic evaluation must determine whether the proposed wells are attractive.