Natural-gas prices fell Monday, ending a string of six straight trading sessions, as revised forecasts left investors with a mixed picture for end-of-winter gas-fired heating demand. The market wavered between gains and losses for much of the day before ending down 0.2% at $1.8190 a million British thermal units on the New York Mercantile Exchange. Natural gas futures have slumped more than 20% this year amid surging production and weak demand amid a mild winter and little need for gas-fired heating. Forecasts Monday for the coming weeks were slightly cooler than previous outlooks, raising the prospect of some late-season demand as winter fades and spring approaches on the calendar. Still, much of the U.S. could see above-normal temperatures into late March. Though the short-term outlook has improved somewhat, the overall fundamentals in the market remain bearish, with large and growing inventories. Speculators have been betting heavily against the market, […]