In addition to crude type mentioned here, there are relative price differentials to take advantage of due to the local storage/transport constraints. For examp

In addition to crude type mentioned here, there are relative price differentials to take advantage of due to the local storage/transport constraints. For example, US oil may become cheaper because there is so much shale production growth there. Likewise, because Canada liberals continuously block pipelines, Canadian oil fell into the single digits last month. Of course, most of this differential is eaten up by transport middlemen, so this isn't much of a good thing for the consumer still.