European natural gas prices advanced modestly, with trading activity centered on unusually low storage levels as the market awaits further clarity on Middle East supply conditions. The benchmark futures contract rose by as much as 2.7% after hitting a two-week low in the previous session.

On Monday, prices followed crude oil lower amid diplomatic efforts aimed at ending the U.S.-Iran conflict, yet uncertainty over energy shipments from the Persian Gulf persists, keeping European gas prices at more than double their pre-war levels. President Donald Trump is scheduled to address the United Nations General Assembly in New York late Tuesday and may hold a meeting with Iran's president on the sidelines of the event.

Time is running short for Europe to replenish gas inventories ahead of the winter season. Should supply disruptions in the Middle East continue, the European heating season could face intensified competition for gas supplies. Earlier this month, European gas prices reached their highest level since December 2022, adding to inflationary pressures and threatening the region's already fragile economic outlook.

European storage facilities are currently filled to roughly 70% of capacity, compared with a five-year seasonal average of 86%. In a research note, industry analyst Patricio Alvarez and his team stated that prices would remain highly susceptible to shocks should U.S.-Iran diplomatic talks collapse over the long term.

Industry research suggests that if supply interruptions persist alongside stronger Asian LNG demand, prices will stay within a "winter stress range" of 70 to 100 euros per megawatt-hour; any further escalation in the conflict would push prices even higher.