It would be cheaper and more useful to build a railway connection to Alaska. We should've done that with the north slope oil too. Would've opened up quite a lot of resources up that way, in the Yukon, and British Columbia.
Order of magnitude cost for a double track rail connection would be $3-5 billion.
Maybe I'm missing something, but isn't a railroad a very inefficient means (compared to a pipeline) of transporting oil and gas?