MarketWatch | Why oil is plunging even after OPEC extended its landmark output-cut deal MarketWatch “This is why we haven't seen an enthusiastic response in crude prices following the news of the deal,” he said, adding that he expects oil prices to remain in the range of $40 to $55 a barrel this year. In Thursday trading, July West Texas Intermediate ... Oil falls below $50, tanking about 4% as OPEC output cut extension disappoints the market Oil price slides as Opec production cuts fail to impress markets OPEC, non-OPEC extend oil output cut by 9 months to fight glut |