Australia's LNG Export Slide Deepens as Japan Locks In New Supply Pact
JKM LNG front-month traded at $15.86/MMBtu on June 23, roughly 37% below the crisis highs above $25/MMBtu reached after Iran conflict disrupted Qatari export infrastructure in March (2026-03-26), according to price index data.6,7
The retreat reflects some Hormuz normalisation, but the underlying supply vulnerabilities have not resolved. Australia, Japan's single largest LNG supplier at 26 million tonnes in 2025, recorded export volumes down 2.8% year-on-year through that period, according to LSEG seaborne data, leaving the country further behind the US and Qatar as global LNG expansion accelerates.4,2
Japan imported 66.3 million tonnes of LNG in 2025, a 1.5% decline year-on-year, with roughly 98% of its domestic gas demand met through seaborne imports, according to OilPrice.com analysis published May 20 (2026-05-20). Only around 6% of that volume — supply from Qatar and the UAE — transits the Strait of Hormuz directly; the bulk arrives from Australia, Malaysia, and Russia's Sakhalin. But the Hormuz exposure is not limited to direct LNG routing.2
The indirect risk runs through Japan's refining sector. With roughly 90% of Japanese crude imports sourced from the Middle East, Tokyo had drawn down around 80 million barrels from its strategic petroleum reserves by mid-May (2026-05-20), equivalent to roughly 26 days of domestic oil demand. Japan covers nearly 100% of its gasoline and around 95% of its diesel demand through domestic refining, giving it a buffer that still requires uninterrupted crude access.2
Australia's exposure is structurally different. Its two remaining refineries produce only around 20% of the country's total fuel products, leaving the country dependent on refined fuel imports from Asian processors. Those Asian refineries rely on Hormuz-routed crude for 40% to 70% of their own feedstock, according to analysis published in May (2026-05-19). More than half of Australia's refined fuel supply depends, through that chain, on crude passing through the strait.3
Against that backdrop, Australian Prime Minister Anthony Albanese and his Japanese counterpart signed an energy and critical minerals cooperation agreement on May 19 (2026-05-19), formalising ties that already make Australia Japan's top LNG supplier. The deal covers supply chain resilience across both LNG and battery minerals, a direct response to Hormuz disruption and Chinese rare earth restrictions that have simultaneously threatened Tokyo's energy and technology supply chains.5
Gas analysts noted in late May (2026-05-21) that LNG's standard commercial advantage — supply flexibility over pipeline — is being stress-tested. Unlike oil, there are no alternative routing options if LNG cargoes from the Gulf cannot clear Hormuz; the infrastructure to reroute Qatar's volumes through overland pipes does not exist. An analyst told Montel on Thursday (2026-05-21) that LNG had been "cemented as the flexible alternative" to pipeline gas in a world that assumed open sea lanes.1
The fuel mix implications for Japan have been visible in real time. With natural gas accounting for around 32% of Japanese power generation and coal at 28%, a sustained JKM premium over Australian and US LNG volumes pushes generation economics toward coal, a shift already playing out in May (2026-05-20) as Japan's power sector sought options for displacing expensive spot cargoes.2
JKM at $15.86 on June 23 offers breathing room relative to the March peak, but the structural equation has not changed: limited Hormuz bypass routes, declining Australian export volumes, and Japan's near-total LNG import dependence persist. Whether Australian export volumes recover toward prior-year levels through the northern summer maintenance cycle, and whether any renewed Hormuz disruption restores the premium that has faded through June, will determine how much of the bilateral pact signed in May gets tested in practice.