Natural-gas prices gained on Friday, as traders who had bet on lower prices took profits following a six-session losing streak. Futures prices had tumbled 16% in six sessions, as weather forecasts called for above-average temperatures this month, lowering expectations for natural-gas demand. About half of U.S. households use natural gas as their primary heating fuel. In the latest sign of tepid demand, natural-gas supplies fell much less than projected last week, as heating demand undershot expectations. Stockpiles fell just 22 billion cubic feet in the week ended Nov. 28, according to the U.S. Energy Information Administration, less than the 43-bcf drop that analysts and traders had expected. However, prices bounced higher on Friday, as traders who had bet on lower prices closed out positions ahead of the weekend, in case temperature forecasts turn colder. “Sellers become more conservative the lower we go,” said Don Morton, […]