October Nymex natural gas (NGV26) on Monday closed up +0.065 (+2.30%).
Nat-gas prices settled higher on Monday amid forecasts for hotter US weather, potentially boosting nat-gas demand from electricity providers as air conditioning use rises. The Commodity Weather Group said Monday that forecasts shifted hotter, with above-average temperatures expected across the South through September 28.
Nat-gas prices also rose Monday on carryover support from a rally in European gas prices to a 3.75-year high. European nat-gas is soaring as sharply reduced supplies from the Middle East due to the closure of the Strait of Hormuz from the US-Iran war are keeping European nat-gas storage levels well below normal, a bullish factor ahead of winter, when demand typically surges.
In a bearish medium-term factor for nat-gas prices, the market is expecting a “Super El Niño” to bring warmer-than-normal temperatures to the Northern Hemisphere this fall and winter, reducing heating demand for nat-gas.
US (lower-48) dry gas production on Monday was 114.4 bcf/day (+5.2% y/y), according to BNEF. Lower-48 state gas demand on Monday was 74.2 bcf/day (+7.7% y/y), according to BNEF. Estimated LNG net flows to US LNG export terminals on Monday were 19.9 bcf/day (+2.9% w/w), according to BNEF.
As a positive factor for gas prices, the Edison Electric Institute reported last Thursday that US (lower-48) electricity output in the week ended September 5 rose +19.69% y/y to 100,302 GWh (gigawatt hours). Also, US electricity output in the 52 weeks ending September 5 rose +3.00% y/y to 4,392,478 GWh.
As a bearish factor, the US Energy Information Administration (EIA) on August 11 projected that US nat-gas storage levels will swell to 3,985 bcf at the end of October, the highest level in 10 years and 5% above the five-year average. Last Monday, the EIA raised its 2027 US dry natural gas production estimate to 116.0 bcf/day from 115.3 bcf/day projected in July.
Last Thursday's weekly EIA report was bearish for nat-gas prices, as it showed a +40 bcf increase in US nat-gas inventories for the week ended September 4, above expectations of +34 bcf, but below the 5-year weekly average of +52 bcf. As of September 4, nat-gas inventories were down -2.7% y/y and +4.8% above their 5-year seasonal average, signaling adequate nat-gas supplies. As of September 12, gas storage in Europe was 68% full, compared to the 5-year seasonal average of 84% full for this time of year.
Baker Hughes reported last Friday that the number of active US nat-gas drilling rigs in the week ended September 11 rose by +2 to 132 rigs, just below the 3-year high of 134 rigs set in February 2026.