Analysts from Central Michigan University and the Connecticut Center for Economic Analysis conducted a preliminary study that assessed the Great Lakes-St. Lawrence Seaway Region (GLR) and the economic contribution of crude oil transportation across the region. The study used datasets from both Canada and the United States in order to harmonize them into one data source that would allow for a region-wide, dynamic economic impact analysis (including amenity costs and benefits) of the oil transportation across the GLR. The REMI model was incorporated into this analysis to help categorize the Canadian and American datasets into future inputs and researchers included the model in the next steps for this preliminary study to estimate the current contributions to the GLR economy at the county level and the future contributions to the additional investments in the sector.