They upgrade the oil sand mix so it will flow like an oil to the refinery. The gulf-coast refineries are already set up to process this near bitumen-like substance. They can't reship it, it must be refined.
All of the various fractions end up in the kitty after that. Doesn't matter where the crude came from. It matters what the refinery is set up to process.
You post someone's opinion that he thinks it could be sold, it's an opinion, it means nothing. This is heavy oil, the worse oil, not meant to be used in today's cars.