BUZZ-Natgas firms up on increased LNG exports, colder weather forecasts

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

** U.S. natgas prices NGc1 up 3.8% at $3.77 per mln British thermal units (mmBtu), on near record flows to liquefied natural gas (LNG) export plants and forecasts for colder weather and higher heating demand over the next two weeks than previously expected

** LNG firms NextDecade NEXT.O up 2.4%, CNX Resources CNX.N rises 1.3%, Cheniere Energy LNG.N rises 2.7%, Williams Companies WMB.N up 2.9% and New Fortress Energy NFE.O rises 5.8%

** ETFs United States Natural Gas Fund UNG.P climbs 3.9% and ProShares Ultra Bloomberg Natural Gas BOIL.P up 6.6%

(Reporting by Pooja Menon in Bengaluru)

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