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What to do with the natural gas glut produced by the US fracking boom? One answer: Planes, trains and automobiles. With oil prices high, transportation could soak up the supply of cheap natural gas. BNSF, America’s largest railroad and one of the biggest consumers of diesel, said last week (paywall) it would launch a pilot project to test the use of liquefied natural gas (LNG) in locomotives. Shell, meanwhile, announced it would build two plants in North America to liquefy natural gas for use in transportation. That move follows Shell’s plans to build LNG filling stations at a network of truck stops in the US.