Financial Times | Oil futures curve raises doubts over Opec rally Financial Times Opec's first supply cut in eight years looks set to earn the 13-member cartel an extra $5bn a month in revenues. The 15 per cent rally in oil prices since last Wednesday's agreement looks like an impressive return from a marginal cut in output, even if ... OPEC's Historic Deal Won't Be Enough to Drain Oil Stockpiles Oil Recovers but Doubts About OPEC Production Cuts Remain Oil holds gains on hopes for non-OPEC output cuts |