Oil prices surged Wednesday on word from OPEC officials that Saudi Arabia and other leading exporters will limit their output even if Iran doesn’t cooperate. The market shrugged off mildly disappointing data about rising stockpiles in the U.S. to resume a rally that has juiced the market for more than a month. Oil is now up about 47% during that span as speculators have become more optimistic that nearly two years of price declines…