** Shares of U.S. natural gas companies rise as natgas futures jumped about 6% to a two-week high NGA/
** U.S. natgas futures NGc1 up 3% at $3.66 per million British thermal units (mmBtu), putting the contract on track for its highest close since January 24
** Natural gas prices rose on a slightly bigger-than-expected storage draw last week, rising flows to LNG export plants, a drop in daily output, forecasts for cold weather and higher demand over the next two weeks than previously anticipated
** Natgas firms NextDecade NEXT.O up 2%, CNX Resources CNX.N rises 2.5%, Williams Companies WMB.N up 2.4%
** ETFs United States Natural Gas Fund UNG.P up 3% and ProShares Ultra Bloomberg Natural Gas BOIL.P rises 5%
(Reporting by Pooja Menon in Bengaluru)
((Pooja.Menon@thomsonreuters.com;))