On Friday, September Nymex natural gas closed down -0.74% as US natural gas output continues to increase year-over-year, with current supplies well above normal. Despite an early advance, natural gas prices fell due to higher US production and ample supplies, as well as forecasts for hot weather boosting demand from electricity providers. Lower-48 state dry gas production was up 3.4% year-over-year, while demand decreased by 13.0%. Additionally, the number of active US natural gas drilling rigs rose to a 2-year high of 124 rigs. Nat-gas inventories were above the 5-year seasonal average, indicating sufficient supply.

Read more at Yahoo Finance: Nat-Gas Prices Slip on Robust US Production and Ample Supplies