BUZZ-US natgas stocks fall on forecasts of warmer weather

** Shares of U.S. natural gas companies fall, tracking natgas futures NGA/

** U.S. natgas futures NGc1 down 7.5% at $3.73 per million British thermal units (mmBtu), on forecasts of much warmer-than-normal weather over the next two weeks that should keep heating demand low

** Natgas firms EQT Corp EQT.N falls 6.7%, Cheniere Energy LNG.N falls 1.6%, Energy Transfer ET.N falls 4.1% and Williams Companies WMB.N falls 8%

** ETFs United States Natural Gas Fund UNG.P down 5.7% and ProShares Ultra Bloomberg Natural Gas BOIL.P down 11.1%