Speculation that major world oil producers could at least curb increases caused crude oil prices to soar Friday, though underlying economic pessimism remains. Several media outlets reported the government of the United Arab Emirates was reviewing potential production cuts alongside other members of the Organization of Petroleum Exporting Countries. Previous rumors of cooperation between OPEC and non-member states caused dramatic spikes in crude oil prices and Friday was no different. Brent crude oil shot up 5 percent in early Friday trading to $31.61 per barrel in New York. West Texas Intermediate, the U.S. benchmark for the price of crude oil, moved up more than 6 percent to $27.89 per barrel. […]