Part I of this study is a compilation of hydrodynamic maps for the Milk River Formation. Part II is exploration-oriented, and focusses on defining the boundaries of the unconventional (gas-saturated) zone, the transitional (gas and water) zone and the conventional (wet water) zone within the play area. This study incorporates the majority of the main Milk River gas pools, such as Atlee, Hatton and Abbey/Shackleton. The most marked areas of water imbibition appear in the Transition Zone, where the Alderson Member onlaps the Milk River Aquifer, at the updip margin of the Medicine Hat Field. In the Transition Zone, local facies changes of higher energy shoreface sediments occur in the Alderson Member. These higher permeability sediments preferentially imbibe water from the Milk River Aquifer into the Alderson Member.