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

** U.S. natgas futures NGc1 fall 4.5% to $3.20 per million British thermal units (mmBtu), after less gas flows to the nation's liquefied natural gas $(LNG)$ export plants and after President Donald Trump suspended steep tariffs on Mexico and Canada

** Tariff suspension reduced futures prices as roughly 9% of the gas consumed in the U.S comes from Canada, and higher tariffs would have boosted the cost of that fuel

** Natgas firms NextDecade NEXT.O down 1.2%, Cheniere Energy LNG.N down 1% and New Fortress Energy NFE.O down 1.8%

** ETFs United States Natural Gas Fund UNG.P down 4.2% and ProShares Ultra Bloomberg Natural Gas BOIL.P down 8.5%

(Reporting by Pooja Menon in Bengaluru)

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