Oil prices edged up on Wednesday, rising for a third day on signs that markets are gradually tightening after years of oversupply, although the outlook for 2018 remained less certain. FILE PHOTO: Pump jacks pump oil at an oil field on the shores of the Caspian Sea in Baku, Azerbaijan, October 5, 2017. Picture taken October 5, 2017. REUTERS/Grigory Dukor Brent crude futures, the international benchmark for oil prices, were trading at $56.75 per barrel at 0649 GMT, up 14 cents, or 0.25 percent, from their last close. Brent also rose 2 percent the previous day. U.S. West Texas Intermediate (WTI) crude futures were at $51.09 a barrel, up 17 cents, or 0.33 percent, from their last settlement. Prices rose 2 percent the day before to back above $50 a barrel. Traders said they would look to U.S. fuel inventory data on Wednesday and Thursday for […]