Natural gas futures regained some losses in after-hours trading on Thursday but ended down on the day after US government data showed a larger-than-expected increase in storage inventories, outweighing support from strong cooling demand during a widespread heatwave ahead of the long Independence Day holiday weekend.
Both the front-month Henry Hub contract and the continuous contract edged down by 0.47% to $3.205 per million British thermal units.
The August contract fell to an intraday low of $3.151/MMBtu ahead of the US Energy Information Administration's weekly storage report as traders anticipated a sizeable inventory build. Although prices recovered after the release, they remained below the previous session's close.
The EIA reported that US natural gas inventories rose by 87 billion cubic feet in the week ended June 27, exceeding analysts' expectations for an 84-Bcf injection and well above the five-year average build of 64 Bcf for the period.
Total gas inventories were 1.0% below year-earlier levels but stood 6.4% above the five-year seasonal average, indicating comfortable supply levels despite robust summer demand.
Market sentiment was also pressured by updated weather forecasts pointing to cooler conditions beyond the current heatwave. According to Commodity Weather Group, forecasts shifted toward cooler conditions, with seasonally normal temperatures expected across the eastern two-thirds of the US between July 7-16.
Near-term weather, however, remained supportive. A heatwave covering much of the eastern two-thirds of the country continued to boost electricity demand for air conditioning.
Lower-48 natural gas demand was estimated at 79.1 Bcf/d on Wednesday, down 1.1 Bcf/d from the previous day but 4.7% higher than a year earlier, Barchart said citing BNEF data. The daily decline came despite a 4.1-Bfc/d increase in gas-fired power burn, to 42.3 Bcf/d, according to Celsius Energy.
Preliminary estimates from Energy Buyers Guide indicated that natural gas consumption by power generators exceeded 50 Bcf/d on Thursday, a level typically seen only during the hottest days of the summer. While temperatures are expected to peak on Friday, demand could be tempered by reduced industrial and commercial activity during the Independence Day holiday.
"Looking further ahead, the market may remain rangebound through the next several weeks unless heat persists long enough to materially shrink injection sizes, with rallies still likely to face resistance while inventories remain above normal and traders wait for a clearer shift in the late summer balance," Gelber & Associates said in a market note.
On the supply side, estimated net flows to US LNG export terminals rose to 19.3 Bcf/d on Thursday, up 0.1 Bcf from Wednesday and 1.5% higher than a week earlier.
Meanwhile, Lower-48 dry gas production was estimated at a very healthy 111.7 Bcf/d, up 1.1 Bcf on the day and 2.8% above year-ago levels.