BUZZ-Natgas firms up on increased LNG feedgas, heating demand

** Shares of natural gas companies rise, tracking natgas futures NGA/

** U.S. natgas prices NGc1 up 6.6% at $3.90 per mln British thermal units (mmBtu), due to an increase in the amount of gas flowing to liquefied natural gas (LNG) export plants and forecasts for colder weather in January, leading to higher heating demand than what was previously expected

** LNG firms - EQT Corp EQT.N up 1.6%, CNX Resources CNX.N up 1% and Energy Transfer ET.N up 1.9%

** ETFs United States Natural Gas Fund UNG.P rises 3.1% and ProShares Ultra Bloomberg Natural Gas BOIL.P up 4.1%

(Reporting by Pooja Menon in Bengaluru)

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