OilPrice.com | Canadian Oil Is Building A Wall And Mexico Is Paying For It OilPrice.com Mexico and Canada have been waging a silent battle for market share in the U.S. crude oil refining market. Since 2006, crude oil exports from Canada and Mexico to the U.S.' largest refining complex in the U.S. Gulf Coast (Petroleum Administration for ... Offshore production nearly 30% of global crude oil output in 2015 |