October Nymex natural gas (NGV25) on Wednesday closed down -0.088 (-2.82%). Oct nat-gas prices retreated on Wednesday due to the prospects for US gas inventories to build in the near term.  Due to seasonal pipeline maintenance along the Gulf Coast, nat-gas exports are set to decline, which will boost nat-gas supplies in storage.  Thursday's weekly EIA nat-gas inventories are expected to climb +69 bcf in the week ended September 5, above the five-year average of +56 bcf. More News from Barchart The downs ...