US natural gas futures pared gains in after-hours trading Monday but remained higher on crude gains and strong domestic demand.
The front-month Henry Hub contract and the continuous contract both rose by 1.87% to $2.884 per million British thermal units.
Oil prices rose Monday after attacks disrupted a key Saudi oil pipeline, while Houthi militants in Yemen tightened their control over the Bab al-Mandeb Strait, intensifying pressure on Middle East crude-export routes already strained by the US-Iran conflict.
In the US, warmer weather forecasts for the second half of September also supported prices. Temperature outlooks trended hotter over the weekend, adding significant population-weighted cooling degree days for the coming week, Pinebrook Energy Advisors said.
While late-September heat is less impactful on national energy demand than the extreme temperatures seen earlier this month, current forecasts point to elevated power burn persisting through month-end. Gelber & Associates said it expects the late cooling demand would further constrain storage builds, effectively taking 4.0 Tcf off the table and reducing the odds of inventories surpassing 3.9 Tcf before winter.
Strong demand for LNG feedgas also helped keep prices up. Flows reached a fresh two-week high of 19.8 Bcf/d as deliveries recovered at the Freeport and Golden Pass LNG facilities, Gelber said. Aegis Hedging said commissioning activity at Golden Pass remained choppy, potentially signaling a slower ramp-up for additional trains at the facility.
Supplies also supported higher prices, with Canadian imports falling to a two-week low of 4.2 Bcf/d and pulling total supply down to 117.4 Bcf/d, Gelber & Associates said adding that the decline in imported supply is becoming increasingly significant as warmer weather revisions across the Midwest, South Central and Northeast are expected to sustain cooling demand over the coming week.
Average gas output across the Lower 48 states fell to a two-week low on Friday, Trading Economics said, but rebounded on Monday to 114.4 Bcf/d, Barchart said, citing BNEF data, a 5.2% increase over production this time last year.