Reuters | Oil prices gain as Saudi Arabia cuts ties with Qatar Reuters FILE PHOTO: Equipment used to process carbon dioxide, crude oil and water is seen at an Occidental Petroleum Corp enhanced oil recovery project in Hobbs, New Mexico, U.S. on May 3, 2017. Picture taken on May 3, 2017. REUTERS/Ernest Scheyder/File ... OPEC Deal Extension Isn't Enough to Rope in Crude Oil Bulls Oil gains more than 1% on Middle East tension, tightening supply Rising Middle East tensions push up oil prices |