CNBC | Scrapping the ban The Economist WHEN the economics textbooks of the future are written, America's ban on crude-oil exports will be a fine example of the perverse effects of protectionism. Similarly, a new decision by Barack Obama's administration to allow American firms to sell some ... US approves landmark crude oil export swaps with Mexico Obama surprises with gesture to ease oil export ban U.S. Eases 40-Year Crude Export Ban by Allowing Mexico Swap |