September 29, 2011. Canada to the United States says a controversial oil pipeline should go ahead and that arguments against the project have "fallen like a house of cards." The $7 billion project would carry oilsands oil from Alberta to refineries on the Gulf Coast. There has been a lot of noise about the 2,700-kilometre pipeline, which would also carry oil from the Williston Basin in western North Dakota and eastern Montana to downstream markets.