The global glut of natural gas still hasn’t reached one corner of the U.S. The heating fuel may surge to $20 to $25 per million British thermal units in New England this winter, the highest in the world, as pipeline bottlenecks limit supplies during frigid weather, traders including Consolidated Edison Inc.’s ConEdison Energy said. Prices have collapsed across the rest of the globe amid tepid demand growth, rising exports and a plunge in crude oil prices earlier this year. Competition for pipeline access into New England is poised to intensify as the power grid, already getting more than half of its supply from gas, becomes even more reliant on the fuel as coal-fired plants shut. Opposition from environmental and consumer groups threatens to delay and derail new lines, including a $3 billion Spectra Energy Corp. project. “New England remains pipeline constrained, so if bouts of very cold weather move […]