Could oilsands crude be shipped in the Atlantic sooner than the Pacific?

A map of the Portland-Montreal pipeline.
From the surprisingly detailed Wikipedia article.

So what will be the first port to put oilsands crude on the water (not to be confused with in the water, knock on wood)? Well according to this article, if the Portland-Montreal-Pipeline company has anything to say about it, it might be in Portland, Maine, that bitumen finally takes to the seas. It's a bit confusing, but it appears the company is owned by Suncor, Imperial and Shell.