This study evaluates the hydrocarbon reserve potential of the Belly River Group in the Claresholm area of southwestern Alberta using geological and hydrogeological data. This study aims to extend the stratigraphic framework developed in the Herronton area south into the Claresholm area, and to identify and map the distribution of reservoir trends in the Belly River. When available, hydrogeological data is used to attempt to determine the distribution of gas within the Belly River.