The route south from Alberta to America and the refineries of the Gulf coast hinges on the controversial Keystone XL pipeline securing approval, which could happen sometime later this year. But nothing is certain anymore and the pipeline could get blocked by the Obama Administration. What about the route west from Alberta to British Colombia so the oil could get shipped to Asia? This gives Canada a back-up to Keystone. The route west is yet another highly controversial pipeline called the Northern Gateway pipeline.
Source: The Price of Oil