Sorry Patriot, this is not accurate..
The branch line from the Trans mountain pipeline crossing in to Washington state at Sumas is fully utilized carrying unrefined oil to the Washington refineries.
 The two berths at the BP refinery at Cherry Point are incapable of handling Supertankers.
Alaskan oil is transported to Port Angeles WA in Supertankers, and then loaded into smaller 
coastal tankers to deliver crude oil to the four Washington refineries located at Anacortes (2), Ferndale (1) and Cherry Point (1).
The refineries in Whatcom county WA are expressly forbidden from exporting crude oil by the tree hugging Whatcom County council.
I wish it weren't so, but it is..