An easier way to eliminate foreign oil imports is to utilize more CNG.
Right now so much natural gas is produced by the Bakken oil field in North Dakota that it shows up in outer space.
SkyTruth: Bakken Shale-Oil Drilling and Flaring Lights Up the Night Sky
That red splotch represents billions of cubic feet of natural gas being flared off as a safety measure to prevent well blow-outs (BP oil spill type accidents).
Why is it so difficult to build pipelines to carry this gas to centers of usage where it could be refined, compressed and used as motor fuel? Think Keystone XL.
Why does it cost so much to convert an existing car or truck to use CNG? Think EPA.