Oil’s biggest price swings in three years are poised to continue as OPEC cedes no ground to competing suppliers. Oil traders’ expectations for future swings, known as implied volatility, surged since Saudi Arabia and fellow members of the Organization of Petroleum Exporting Countries decided on Nov. 27 to keep pumping crude despite a supply glut. That will mean prices fluctuating in the next several years by even more than the $58-a-barrel move in 2014, Bank of America Corp. says. “OPEC has always been there to lower volatility both on the upside and downside, but now they have less and less weight,” said Pierre Andurand , the London-based founder of Andurand Capital Management LLP, whose $350 million fund earned 18 percent in November from betting on lower Brent crude prices. “It means more volatility.” OPEC’s policy of testing rival producers’ tolerance for lower prices has sparked the search for a […]