Cheaper North American oil is poised to replace West African and Middle East cargoes at eastern Canadian refineries with U.S. crude prices at the lowest level compared with the international benchmark in 14 months. Imports to Canada from outside North America averaged 244,089 barrels a day this month through March 15, down 27 percent from a year earlier, according to New York-based ClipperData, which tracks tanker shipments. Canada, the world’s fifth-largest oil supplier, produces most of its oil in the western province of Alberta and exports it south to the U.S. A lack of pipelines means Canada’s eastern refineries depend on imports by tanker and train. U.S. export “volumes have been growing pretty exponentially,” Katherine Spector, a commodities strategist at CIBC World Markets Inc. in New York, said by phone Wednesday. U.S. oil is “going to Eastern Canadian refineries and displacing waterborne light crude.” U.S. crude oil […]