Natural-gas prices fell on Friday, extending a second day of losses, as uneven weather forecasts raised doubts about a predicted burst of below-normal temperatures in the U.S. that was expected to drive demand for gas-fired heating. The front-month February contract for natural gas settled down 3.1 cents, or 1%, at $3.1270 a million British thermal units on the New York Mercantile Exchange. The decline came after forecasters began to alter prior outlooks for the extreme cold, with a previously expected swell of much-below-normal temperatures over most of the U.S. beginning to recede. Still, futures posted a gain for the week, snapping a seven-week losing streak. Despite the advent of the peak winter-heating demand season and a larger-than-expected draw on supplies in data reported this week, natural-gas futures have struggled, as robust production from U.S. shale fields has ensured steady supplies. In weekly U.S. government inventory data […]