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

** U.S. natgas futures NGc1 down 4.6% at $3.09 per million British thermal units, on track for the lowest close since January 31 for a third day in a row

** Natural gas prices slid to an 11-week low on record output and forecasts for milder weather and lower demand over the next two weeks than previously expected

** Shares of natgas companies Energy Transfer ET.N down 2.6%, EQT Corp EQT.N falls 2.9% and Williams Companies WMB.N down 1.7%

** New Fortress Energy NFE.O and NextDecade NEXT.O down 11.5% and 4.5%, respectively

** ETFs United States Natural Gas Fund UNG.P and ProShares Ultra Bloomberg Natural Gas BOIL.P fall 4.8% and 9.3%, respectively

(Reporting by Pooja Menon in Bengaluru)

((Pooja.Menon@thomsonreuters.com;))