CNBC | Oil prices jump to three-year high after Trump warns Russia missiles 'will be coming' in Syria CNBC Oil prices hit new 2018 highs as rebels in Yemen launched new missile strikes on top crude exporter Saudi Arabia and as the market continued to worry about escalating conflict between the United States and Russia in Syria. Brent crude prices were at ... Oil Prices Rise After Trump's Syria Tweets Oil Prices Hold Near Three-Year High on Geopolitical Risk Brent oil marks highest finish in over 3 years as tensions over Syria rise |