U.S. crude oil falls 4% after Trump-China trade flare-up threatens to slow global growth
1. U.S. crude oil prices fell 4% due to tariff threats. 2. Brent crude dropped 3.74% amid trade tensions. 3. New tariffs may hurt global economy and oil demand. 4. Investors reacted negatively to potential economic slowdowns. 5. Trade relations between U.S. and China deteriorate further.