** U.S.-listed shares of natural gas companies rise premarket as natgas futures climbs about 4% to a one-week high

** U.S. natgas prices up 4.5% at $3.87 per mln British thermal units (mmBtu), on forecasts for colder weather and higher heating demand over the next two weeks than previously expected and record flows of gas to liquefied natural gas $(LNG)$ export plants

** LNG firms NextDecade up 3.1%, EQT Corp up 1.9% and Cheniere Energy up 1%

** United States Natural Gas Fund ETF rises 4.8% and ProShares Ultra Bloomberg Natural Gas ETF rises 10.5%

(Reporting by Pooja Menon in Bengaluru)

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