Natural gas futures extended losses Tuesday as forecasts for an East Coast heat wave faded, dashing expectations for a bout of gas-fired cooling demand. Natural gas for June delivery settled down 6.5 cents, or 2.3%, at $2.822 a million British thermal units on the New York Mercantile Exchange. The June contract expires Wednesday. The loss prolonged last week’s slide, as concerns about robust production and more than adequate supplies prompt the market to give back gains made in early May. The May rally was driven by hotter-than-average temperatures that were expected to provide a boost for natural gas demand to generate power and run air conditioning. But the most recent forecasts show that trend beginning to moderate, with a spate of much-above normal temperatures in the Northeast fading in the coming days and predictions for renewed heat into early June losing strength, according to forecaster Commodity […]