Reuters | Oil prices fall on higher US supply, doubts about Russia's resolve 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 ... Oil Slips From Two-Year High as Doubts Over OPEC Meeting Linger Crude vulnerable to profit-taking; Opec output cuts to guide oil market Clash between OPEC and US for oil supremacy nears day of reckoning |