This study provides an evaluation of the oil-productive Mississippian Bakken and Devonian Three Forks formations in an area of southeastern Saskatchewan along the North Dakota/Montana border. The study includes a series of location, production and structure maps, along with four geologic cross-sections illustrating the regional stratigraphy of the two formations with DST and core data. These maps and cross-sections are supplemented by a series of appendices of geological tops and core, DST, production and completions data.