It's a good thing for the US but it will take time for demand to grow due to the mythological bias Americans have been brainwashed into regarding the environment.
Getting the Keystone bill to pass congress WITH almost 1/4 of Dems voting in favor helps to slowly dispel the myth. As this continues, American will use more oil and the price increases.
Both the Saudis and OPEC understand what low prices do to fracking ventures currently underway...