Just my opinion, it seems US political and public approval for keystone was never there. Public approval for any further development of Canadian tar sands is fading fast. If IE can get one of the last musical chair approvals, IE will fly. Good luck & fortune to all holding.
It seems like you don't know what you bought into. HTL means heavy oil to light oil technology, which is the company core value. Today, Canada tar sands sold at very cheap price because heavy oil could not be easily transferred into US. Canada need this pipeline. If there is no keystone pipeline, they have to use HTL.