By Timothy Puko Natural gas closed at a three-week low with comfortable weather and a soft demand outlook continuing to put pressure on prices. The front-month November contract settled down 10 cents, or 2.3%, to $3.816 a million British thermal units on the New York Mercantile Exchange. It equaled the closing price of Sept. 23, the lowest close from the past month. One trader was trying to unload put options Tuesday morning and that eventually prompted a flat market to turn downward, said Michael Doyle, a broker at Eclipse International Inc. in New York. “The weather is going to get warmer now, so when that happened, nobody was stepping up to take what was coming through,” Mr. Doyle said. Unseasonably warm weather is going to cover most of the country through the end of the month, according to MDA Weather Services. It forecasts temperatures as much as 15-degrees-Fahrenheit above […]