US natural gas futures ended higher as intense and long-lasting heat in Texas pushed consumers to crank up their air-conditioners, putting pressure on gas-fired power generators and the electricity grid, according to a report by The Hindu BusinessLine published on August 19, 2026, citing Bloomberg. The September-delivery natural gas contract on the New York Mercantile Exchange (Nymex) settled 8.6 cents, or 3.2%, higher at $2.776 per million British thermal units (mmBtu).
Texas heat wave threatens record ERCOT load
Commercial forecaster AccuWeather projected high temperatures in Houston from August 20 through August 23 to average 100F (38C), about 5F above the seasonal norm. In a Tuesday note to clients, Eli Rubin, senior energy analyst at EBW Analytics Group, wrote that peak load on the Electric Reliability Council of Texas (ERCOT) power grid could set a new record this week, driven by high temperatures and particularly as wind generation subsides. The hot spell is directly relevant to natural gas traders because higher air-conditioning use translates into more call on gas-fired power generation, and the report pointed to pressure on gas-fired generators and the electricity grid as a result.
Lower-48 supply and export snapshot
Daily BNEF Gas Data cited in the report showed Lower-48 dry gas production at roughly 112.5 billion cubic feet per day (bcf/day) on Tuesday, up 2.6% year-over-year. Despite stronger output, total Lower-48 gas demand also rose, reaching about 83.3 bcf/day, up 2.8% year-over-year. Export flows were mixed: dry gas exports to Mexico slipped to roughly 8.0 bcf/day, down 4% week-over-week, while estimated gas flows to LNG export terminals climbed to about 17.7 bcf/day, up 2.2% week-over-week.
| Daily Lower-48 gas metric (Tuesday) | Level | Change |
|---|---|---|
| Dry gas production | ~112.5 bcf/day | +2.6% y/y |
| Total gas demand | ~83.3 bcf/day | +2.8% y/y |
| Dry gas exports to Mexico | ~8.0 bcf/day | -4% w/w |
| Gas flows to LNG export terminals | ~17.7 bcf/day | +2.2% w/w |
Demand side: air-conditioning and gas-fired generation
Total Lower-48 gas demand on Tuesday stood at about 83.3 bcf/day, up 2.8% year-over-year, according to the BusinessLine report. In Texas, the demand-side pressure is acute: Consumers responding to the heat are running air-conditioners, adding incremental load on gas-fired power generators and the ERCOT grid. Rubin’s note highlighted wind generation as a supply-side factor, since the expected record peak load could come particularly as wind generation subsides, leaving gas-fired plants to cover more of the balancing load.
What to watch
The August 19 report points to the August 20–23 window when Houston is expected to average 100F, 5F above normal, according to AccuWeather. Whether ERCOT peak load records a new high this week and how long the heat persists are the factors market participants are tracking, alongside the next daily production and LNG flow reads from BNEF. The latest settlement places the September Nymex contract at $2.776/mmBtu, up 8.6 cents, or 3.2%, with Lower-48 supply data showing year-over-year production growth of 2.6% and LNG terminal flows up 2.2% week-over-week.
For commodity traders and power procurement teams, the story combines a weather-driven demand catalyst with supply-side data covering production, Mexican exports, and LNG terminal flows. The near-term price direction will hinge on whether the Houston heat materialises as forecast and whether ERCOT’s peak load challenge intensifies as wind output declines.
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