Prices for diesel used to power trucks, fuel machinery and heat homes have surged about 50% amid shrinking inventories and a strained export market. The shortage could cost the economy billions. Bloomberg's Chunzi Xu reports. Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com/ Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness/ Instagram: https://www.instagram.com/quicktake/?hl=en