The US is on the verge of becoming a net oil exporter, a market shift unthinkable just a few years ago. On this week's Capitol Crude, John Auers, an executive vice president at Turner, Mason & Company and a refining sector expert, talks about the changing path towards US energy independence and the hurdles, such as pipeline capacity constraints in the Permian, which could hinder it. Auers also talks about the future of US Gulf Coast refining both with and without Keystone XL, the impact of the brewing trade war with China on US crude exports, and investments by domestic refiners in recognition of growing light crude output.