Oil prices ended unchanged Friday, as investors grappled with mixed signals for global supply and demand. Light, sweet crude for October delivery settled flat at $49.89 a barrel on the New York Mercantile Exchange, after fluctuating between gains and losses throughout the session. Brent, the global benchmark, rose 15 cents, or 0.3%, to $55.62 a barrel. Oil prices were mainly neutral because of profit-taking and consolidation in the market following the strong gains of the past weeks, said Giovanni Staunovo, a commodity analyst at UBS Wealth Management. But overall, “sentiment has completely changed” to the upside over the past month, Mr. Staunovo said. “Demand is now stronger than supply,” he added. Prices have been rising this week on the back of bullish data for demand and signs of shrinking global inventories, sending Brent to its highest level since mid-April. The International Energy Agency on Wednesday said global oil supplies […]