Natural gas prices plunged to a 14-year low Monday, as an unusually warm winter saps demand and deals another blow to struggling energy companies. Recent high temperatures for this time of year in cities from Michigan to Wisconsin and New York have slashed consumption of natural gas, which is the primary heating fuel in about half of U.S. households. The unseasonably warm weather comes at an inopportune time for the gas market, which already is grappling with a large surplus of the fuel thanks to years of rising North American production. Weather forecasters say the worst for the natural-gas market isn’t over yet. The latest predictions call for “significantly warmer” weather in the next two weeks than was previously expected, according to Commodity Weather Group LLC. CWG says this year is on pace to mark the warmest start to winter on record. “If this ultra-warm trend continues, the potential […]