Natural gas futures dropped from a five-year high in New York amid speculation that the biggest gain in 20 months wasn’t sustainable. Futures for March delivery fell as much as 4.2 percent to $5.892 per million British thermal units in electronic trading on the New York Mercantile Exchange and were at $5.942 at 3:38 p.m. Singapore time. The contract rose 11 percent yesterday to $6.149, the highest close since Dec. 3, 2008. The volume of all futures traded was about 116 percent above the 100-day average. “It’s profit taking,” said Stephen Schork , president of Schork Group Inc., a consultant in Villanova, Pennsylvania . “The bulls are locking in to free up cash to send this market higher tomorrow.” Natural gas posted the biggest gain yesterday since June 14, 2012. Prices are up 40 percent so far this year as waves of arctic air boosted demand for heating fuel, […]