US natgas futures ease on milder weather, lower demand outlook
By Scott DiSavino
NEW YORK, Sept 24 (Reuters) - US natural gas futures eased on Thursday on forecasts for milder weather and less demand next week than previously expected.
Front-month gas futures for October delivery on the New York Mercantile Exchange fell 1.6 cents, or 0.5%, to $3.007 per million British thermal units. On Wednesday, the contract closed at its highest since July 8.
Prices declined despite a bullish drop in daily output and a federal report showing that hot weather and high air conditioning demand last week helped cause energy firms to add less gas to storage than usual for this time of year.
The US Energy Information Administration said energy firms added 53 billion cubic feet of gas to storage during the week ended September 18.
That was in line with the 53-bcf build analysts forecast in a Reuters poll and compares with an increase of 77 bcf during the same week last year and a five-year (2021-2025) average increase of 76 bcf for the period. EIA/GAS NGAS/POLL
SUPPLY AND DEMAND
Financial firm LSEG said average gas output in the US Lower 48 states has risen to 112.8 billion cubic feet per day so far in September, up from a monthly record high of 112.2 bcfd in August.
On a daily basis, however, output was on track to drop to an 11-week low of 108.4 bcfd on Thursday, due mostly to declines in Louisiana and West Virginia.
Record output and mild spring weather have allowed energy firms to keep the amount of gas in inventory above the five-year (2021-2025) average since March, reaching a high of 7.7% above normal in April.
But hotter-than-normal weather over the summer forced energy firms to pull lots of fuel from storage to produce the power needed to keep air conditioners humming, cutting the inventory surplus. About 40% of US power generation comes from gas-fired plants.
With the weather remaining hot last week, the amount of gas in storage slid to 2.9% above normal during the week ended September 18, down from 3.7% above normal in the previous week. EIA/GAS NGAS/POLL
Looking forward, however, meteorologists forecast the weather would remain mostly near normal through October 9.
LSEG said average gas demand in the Lower 48 states, including exports, would slide from 108.0 bcfd this week to 103.3 bcfd next week. The forecast for next week was lower than LSEG's outlook on Wednesday.
LNG EXPORTS
Average gas flows to the nine big US LNG export plants have risen to 17.8 bcfd so far in September, up from 17.2 bcfd in August, but have remained short of the monthly record high of 18.8 bcfd in April.
The increase in average LNG feedgas so far in September occurred despite the shutdown of US energy firm Berkshire Hathaway Energy's 0.8-bcfd Cove Point LNG export plant in Maryland around September 19 for a few weeks of planned annual maintenance.
Around the world, gas traded near $25 per mmBtu at the Dutch Title Transfer Facility benchmark in Europe and $26 at the Japan-Korea Marker benchmark in Asia. NG/EU
Week ended Sep 18 Actual | Week ended Sep 11 Actual | Year ago Sep 18 | Five-year average (2021-2025) Sep 18 | ||
US weekly natgas storage change (bcf): | +53 | +44 | +77 | +76 | |
US total natgas in storage (bcf): | 3,351 | 3,298 | 3,497 | 3,256 | |
US total storage versus 5-year average | +2.9% | +3.7% | |||
Global Gas Benchmark Futures ($ per mmBtu) | Current Day | Prior Day | This Month Last Year | Prior Year Average 2025 | Five-Year Average (2021-2025) |
Henry Hub | 3.07 | 3.02 | 3.01 | 3.62 | 3.79 |
Title Transfer Facility (TTF) | 24.82 | 24.42 | 11.13 | 11.94 | 18.51 |
Japan-Korea Marker (JKM) | 25.73 | 26.05 | 11.32 | 12.24 | 18.12 |
LSEG US Global Forecast System (GFS) Heating, Cooling and Total Degree Days | |||||
Total Two-Week Forecast | Current Day | Prior Day | Prior Year | 10-Year Norm | 30-Year Norm |
US GFS Heating Degree Days (HDD) | 55 | 50 | 13 | 49 | 76 |
US GFS Cooling Degree Days (CDD) | 92 | 95 | 117 | 99 | 71 |
US GFS Total Degree Days (TDD) | 147 | 145 | 130 | 148 | 147 |
LSEG US Weekly GFS Supply and Demand Forecasts | |||||
Prior Week | Current Week | Next Week | This Week Last Year | Five-Year (2021-2025) Average for Month | |
US Supply (bcfd) | |||||
US Lower 48 Dry Production | 112.9 | 111.4 | 111.6 | 107.1 | 101.5 |
US Imports from Canada | 6.6 | 7.1 | 7.4 | N/A | 7.7 |
US LNG Imports | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Total US Supply | 119.5 | 118.5 | 119.1 | N/A | 109.2 |
US Demand (bcfd) | |||||
US Exports to Canada | 2.4 | 2.4 | 2.4 | N/A | 2.3 |
US Exports to Mexico | 7.4 | 7.7 | 7.7 | N/A | 6.8 |
US LNG Export Feedgas | 18.1 | 17.7 | 17.9 | 15.6 | 12.6 |
US Commercial | 5.0 | 5.3 | 5.5 | 4.8 | 5.0 |
US Residential | 3.8 | 4.2 | 4.6 | 3.8 | 3.9 |
US Power Plant | 43.3 | 40.8 | 35.5 | 41.3 | 38.4 |
US Industrial | 21.9 | 22.1 | 22.1 | 22.0 | 22.1 |
US Plant Fuel | 5.6 | 5.5 | 5.5 | 5.6 | 5.3 |
US Pipe Distribution | 2.2 | 2.1 | 2.0 | 2.2 | 2.9 |
US Vehicle Fuel | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 |
Total US Consumption | 81.9 | 80.2 | 75.3 | 79.8 | 77.8 |
Total US Demand | 109.8 | 108.0 | 103.3 | N/A | 99.5 |
N/A = Not Available | |||||
US Northwest River Forecast Center (NWRFC) at The Dalles Dam (fiscal year ending September 30) | 2026 Current Day % of Normal Forecast | 2026 Prior Day % of Normal Forecast | 2025 % of Normal Actual | 2024 % of Normal Actual | 2023 % of Normal Actual |
Apr-Sep | 83 | 83 | 76 | 74 | 83 |
Jan-Jul | 90 | 90 | 78 | 76 | 77 |
Oct-Sep | 93 | 93 | 80 | 77 | 76 |
US weekly power generation percent by fuel - EIA | |||||
Week ended Sep 25 | Week ended Sep 18 | 2025 | 2024 | 2023 | |
Wind | 8 | 10 | 11 | 11 | 10 |
Solar | 7 | 8 | 6 | 5 | 4 |
Hydro | 4 | 4 | 6 | 6 | 6 |
Other | 1 | 1 | 1 | 1 | 2 |
Petroleum | 0 | 0 | 0 | 0 | 0 |
Natural Gas | 43 | 43 | 40 | 42 | 41 |
Coal | 18 | 17 | 18 | 16 | 17 |
Nuclear | 18 | 17 | 18 | 19 | 19 |
SNL US Natural Gas Next-Day Prices ($ per mmBtu) | |||||
Hub | Current Day | Prior Day | This Month Last Year | Prior Year Average 2025 | Five-Year Average (2021-2025) |
Henry Hub | 3.06 | 2.90 | 2.97 | 3.52 | 3.72 |
Transco Z6 New York | 1.45 | 1.40 | 1.85 | 3.53 | 3.56 |
PG&E Citygate | 3.59 | 3.48 | 3.74 | 3.42 | 5.47 |
Eastern Gas (formerly Dominion South) | 1.49 | 1.36 | 1.75 | 2.79 | 2.96 |
Chicago Citygate | 2.63 | 2.55 | 2.81 | 3.23 | 3.60 |
Algonquin Citygate | 1.62 | 1.50 | 2.18 | 6.08 | 5.04 |
SoCal Citygate | 3.68 | 3.60 | 3.11 | 3.60 | 5.71 |
Waha Hub | 2.10 | 2.02 | -0.06 | 1.03 | 2.88 |
AECO | 1.27 | 1.17 | 0.22 | 1.13 | 2.13 |
Intercontinental Exchange (ICE) US Power Next-Day Prices ($ per megawatt-hour) | |||||
Hub | Current Day | Prior Day | This Month Last Year | Prior Year Average 2025 | Five-Year Average (2021-2025) |
New England | 36.79 | 39.27 | 38.84 | 77.12 | 61.67 |
PJM West | 46.27 | 52.15 | 51.24 | 60.23 | 54.47 |
Mid-Columbia (Mid C) | 54.12 | 52.76 | 56.16 | 44.81 | 68.96 |
Palo Verde | 34.87 | 43.71 | 38.04 | 34.82 | 59.94 |
South Path-15 (SP-15) | 41.02 | 38.48 | 36.05 | 28.44 | 53.02 |