Oil’s rally sputtered Friday, with prices dipping back below $50. U.S. oil for November delivery settled 63 cents lower, or 1.25%, to $49.81 a barrel on the New York Mercantile Exchange. Brent, the international benchmark, closed off 58 cents, or 1.1%, to $51.93 on ICE Futures Europe. Oil has continued to rise after the Organization of the Petroleum Exporting Countries agreed last week to cut between 200,000 and 700,000 barrels a day of their output to alleviate the global oil glut that has weakened prices for more than two years. An unexpected decline in U.S. crude inventories for a fifth consecutive week also boosted prices this week. Crude still ended the week higher—its third consecutive week of gains—but some market participants said oil prices have climbed as high as they can for the moment. “I think it’s going to be very difficult for the market to sustain its upside […]