The objective of this project is to determine the potential for, and extent of, tilted oil/water contacts and trap flushing due to hydrodynamic flow within the study area. Results from this study show that a regional water gradient is observed and flow is from the southwest to the northeast. The formation water is a sodium bicarbonate type. The water and oil migration maps show that water flow is generally downdip in a northeasterly direction and that oil flow is very similar to that of water. The observed similarity is due to the small difference in densities between the two fluids. Slight reversal of oil flow (updip) along the eastern edge of the Chin Coulee Sawtooth B pool is a product of the structural reversal.