The International Energy Agency (IEA) released its third-quarter 2026 gas market report on Tuesday, delivering a clear yet contradictory message: supply shocks stemming from the U.S.-Iran conflict have severely distorted global gas market fundamentals, with high prices stifling demand. Any further disruption in the Strait of Hormuz could push global LNG supply into its first annual contraction since 2012.

The report indicates global gas demand is projected to decline by approximately 0.5%, or about 20 billion cubic meters, in 2026. This would mark the third annual decline this decade, following drops in 2020 and 2022. This rare instance of "demand destruction" highlights how geopolitical shocks trigger cascading effects through price mechanisms in the global energy market.

Price Shock: TTF Up 32%, JKM Soars 45%, Asian Demand Bears the Brunt

The IEA report shows the Iran war has significantly boosted global gas prices. The average price for Europe's benchmark TTF in Q2 rose 32% year-on-year, nearing $16 per million British thermal units (MMBtu). The average spot LNG price for Asia (JKM benchmark) in Q2 surged 45% year-on-year to $17.5/MMBtu. Both reached their highest second-quarter averages since the 2022 energy crisis.

The direct consequence of soaring prices is the "destruction" of demand. In the first half of 2026, Asian gas demand fell by about 1% year-on-year, as high prices spurred fuel switching, particularly in power generation towards coal. Importing nations like India, Bangladesh, and Vietnam, previously expected to increase gas demand, are being forced to reconsider their long-term gas strategies and seek alternatives. High prices are not only suppressing current consumption but also compelling these emerging markets to reassess their energy transition pathways.

Demand Outlook: Compressed Consumption and Structural Shifts

On the demand side, the IEA report reveals several key trends. The contraction in Asian demand is the primary driver of the global decline in 2026. High gas prices are pushing the power sector towards coal, with demand down roughly 1% year-on-year in the first half. For fast-growing emerging economies like India and Vietnam, this signifies a systemic rise in energy costs during industrialization.

European demand continues to fall, with significant growth in renewable power generation systematically squeezing gas's share in the power mix. Gas consumption in the Middle East is also declining, partly due to production halts and reduced consumption directly caused by the conflict.

The IEA notes in the report, "Ongoing supply shocks will continue to gradually tighten the global LNG balance, intensify competition for cargoes, and prolong the likelihood of weak import demand in both the Atlantic and Pacific basins."

Supply Disruption: Hormuz Carries 20% of Global LNG, Qatar-UAE Output Plummets 80%

The shock on the supply side is more severe. The IEA report states the U.S.-Iran conflict has drastically reduced LNG shipments via the Strait of Hormuz, a route typically carrying about 20% of global LNG supply. LNG supplies from Qatar and the UAE plummeted by nearly 80% from March to June 2026 compared with the same period in 2025. This drop means the global LNG market lost the vast majority of output from two key Middle Eastern suppliers in just a few months.

The IEA had previously warned in an April report that each month of disruption in the Strait of Hormuz would result in a loss of roughly 10 billion cubic meters of LNG supply. This Q3 report further confirms that QatarEnergy's North Field East expansion project has been delayed due to the conflict, which will reduce LNG supply by nearly 20 billion cubic meters between 2026 and 2030.

Global LNG Supply on the Brink of "Zero Growth"

Despite the severe supply shock, the IEA expects total global LNG supply for the full year 2026 to be largely flat compared with 2025, as increased output from other regions (primarily the U.S.) partially offsets disruptions from the Gulf.

However, this "balance" is extremely fragile. The IEA issues a clear warning in the report: if the Strait of Hormuz does not fully reopen before the fourth quarter, global LNG supply could record its first annual decline since 2012.

Global LNG supply growth was once highly anticipated—the IEA predicted in early 2026 that global LNG production would grow by over 7% (more than 40 billion cubic meters), the fastest pace since 2019. However, the outbreak of the Iran war has completely rewritten that expectation. The dramatic shift from "7% growth" to "zero growth" and potentially to "first annual decline" outlines the destructive power of geopolitical shocks on global energy markets.

The IEA previously noted in its April report that shipping disruptions in the Strait of Hormuz since early March had triggered unprecedented global trade uncertainty, with global LNG supply abruptly reduced by nearly 20%. Damage to LNG liquefaction facilities further weakens the medium-term outlook, expected to delay the wave of global LNG expansion by at least two years.

Ongoing Risks Under Ceasefire: LNG Carrier Attacked Again

Although a temporary peace agreement was reached in mid-June and traffic conditions in the Strait of Hormuz have improved, how to manage this critical chokepoint effectively and durably remains unclear. On the same day the IEA report was released (early July 7), a Qatari LNG carrier was hit by a projectile and its engine room caught fire in the Gulf of Oman after leaving the Strait of Hormuz. Reports indicate Iran's Islamic Revolutionary Guard Corps fired at least two missiles at several commercial ships passing through the strait.

This attack occurred just three weeks after the mid-June memorandum of understanding was signed, fully exposing the fragility of the ceasefire. As a trading update released by Shell on the same day warned, integrated gas production had fallen significantly from Q1, with Qatar accounting for about 10% of Shell's global oil and gas production. The delay in QatarEnergy's NFE expansion project will further compress LNG supply from 2026 to 2030.

Market Implications: The Start of a "Structural Change"?

This IEA quarterly report reveals a disconcerting reality: a regional conflict is not only causing short-term price spikes and demand destruction but may also be altering the long-term structure of the global gas market. The reversal from "7% supply growth" to a "potential first annual decline," and from the "Asian demand growth engine" to "year-on-year demand decline of 1%" stems from the dual blow to market expectations and actual flows caused by the "closure" of the Strait of Hormuz, a global energy artery.

The attack on a Qatari LNG carrier in the Gulf of Oman on July 7 serves as the most direct reminder to the market that even during a "ceasefire," this waterway carrying 20% of global LNG supply is never truly safe.

Before the U.S.-Iran conflict, the global gas market was evolving towards a "loose supply" direction—with expanding U.S. LNG export capacity and Qatar's NFE project nearing completion. However, a war, a strait, and an attack are enough to reverse the "supply glut" narrative overnight.

Perhaps the most alarming conclusion in the IEA report is this: even though demand has already been compressed by 0.5% due to prices, global LNG supply could still record its first annual decline in thirteen years. Between energy security and price stability, the global market remains far from finding a balance point.