TOKYO — Japan, South Korea and Australia signed a three-way energy security framework here on Monday that locks in long-tenor liquefied natural gas and crude supply for the two North Asian buyers, the most concrete Asian response yet to the supply scare triggered by the Iran war and a pointed signal that Tokyo and Seoul intend to do their own diversification rather than rely on the post-ceasefire normalization underway in the Gulf.

The framework, formally titled the Tokyo Declaration on Indo-Pacific Energy Resilience and signed at a brief ceremony at the Kantei, commits Australian producers to set aside roughly 18 million tonnes per year of LNG offtake capacity for Japanese and Korean buyers through 2032, with priority allocation rights triggered by defined “Strait of Hormuz disruption thresholds.” A parallel crude annex written into the document obliges Australian, and where commercially feasible American, suppliers to backfill a combined 480,000 barrels per day of Middle East crude in the event of a future Gulf shutdown, with the cost differential absorbed through a shared sovereign hedging facility seeded with $4.6 billion at signing.

Japanese Prime Minister Fumio Kishida, flanked by South Korean President Lee Jae-myung and Australian Prime Minister Anthony Albanese, told reporters at the Kantei that the framework was “the lesson the Pacific has drawn from a war it watched from a long distance and paid for at every gas station.” Mr. Kishida said the agreement was “not directed at any partner, including our partners in the Gulf,” but acknowledged in unusually direct language that Japan would no longer treat its Middle East crude exposure as a structural given. “For seventy years, our energy security has been an outsourced problem,” he said. “For the next seventy, it must be a managed one.”

Mr. Lee, who has been under domestic pressure since South Korea drew down a portion of its strategic petroleum reserve at the height of the war in early April, described the Tokyo Declaration as “the operational form of the lessons we learned in March.” He told reporters Seoul would begin replenishing its SPR “on a pace calibrated to Australian and U.S. liftings” and confirmed that South Korean state-owned refiner KNOC would sign a separate twelve-year heads of agreement Wednesday with Woodside Energy covering Browse Basin gas. Mr. Albanese, for his part, said Australia welcomed “the chance to be a stabilizer, not a passenger, in the Indo-Pacific energy story.”

The compact lands in a market that has already absorbed much of the immediate post-ceasefire shock. Brent crude settled near $96 in Singapore Friday, down from a war peak above $125 in late March. But trading desks said the Tokyo Declaration would steepen demand for non-Middle East LNG on three- to five-year horizons, with North Asian buyers having spent April quietly bidding up Henry Hub-linked cargoes for 2027 and 2028 delivery.

“What this document does is institutionalize a hedge that Japanese and Korean trading houses have been building informally for six weeks,” said Hiroko Tanaka, senior energy analyst at the Institute of Energy Economics, Japan, in a phone interview from Tokyo. “Mitsubishi, Mitsui, JERA, Posco International — every one of them spent the war on the phone to Houston, Perth and Doha. What you’re seeing today is the political ratification of all those calls.”

The framework’s most pointed clause sits in an annex covering Qatari supply. Both Japan and South Korea will retain their existing long-term contracts with QatarEnergy — the world’s largest single LNG exporter — but the document specifies that any incremental volumes contracted from Qatar beginning in 2027 will be priced under a new “transit risk-adjusted” formula that loads a small but explicit premium on cargoes passing through the Strait of Hormuz. A senior Japanese trade ministry official, briefing reporters on background at the Kantei, said the clause was “not a punishment of Qatar, which has been an exemplary partner,” but rather “an honest accounting of geography that the war forced us to put on paper.”

Qatari officials declined to characterize the clause publicly. A senior figure in the Qatari energy ministry, speaking on condition of anonymity, said Doha had been “briefed in advance and at length” and that QatarEnergy considered its Asian relationships “structurally unaffected.” Qatari LNG accounted for roughly 22 percent of Japanese imports and 32 percent of Korean imports in 2025, according to JOGMEC data.

The Tokyo Declaration also commits the three signatories to a joint strategic stockpile modeled loosely on the International Energy Agency’s emergency reserves framework but governed by a smaller decision body of the three energy ministers. Sites are planned at Kushiro on Hokkaido, Yeosu in southern South Korea, and Darwin in the Northern Territory, with initial fill of 28 million barrels of crude and 1.4 million tonnes of LNG by mid-2027.

China was conspicuously absent from the Tokyo arrangements, a fact diplomats on all three sides treated as obvious but unspoken. Beijing’s commerce ministry, asked at a regular briefing, described the framework as “a matter for the parties involved” and said China would continue to pursue “win-win energy cooperation” with its regional partners. State media coverage was muted; the Global Times ran a short item noting that Tokyo and Seoul were “deepening their dependence on American and Australian supply chains,” making no mention of the steep Chinese lifting of Iranian crude that ship-tracking firms reported over the past week.

Indian officials were noncommittal on whether New Delhi might join as an observer. External Affairs Minister Subrahmanyam Jaishankar said India “welcomed any arrangement that brings stability to Indo-Pacific energy markets” but emphasized that India’s “non-aligned procurement strategy” — which includes ongoing if cautious lifting of Iranian crude — remained the foundation of its energy policy.

Washington welcomed the framework in a brief State Department statement, with a senior administration official, speaking on condition of anonymity, saying the U.S. side had been “looped in at every stage” but had kept its public footprint small. “This works because it’s an Asian initiative with Australian backing,” the official said. “We don’t need our flag on it.”

Markets received the announcement calmly. The Nikkei 225 closed up 0.4 percent, the Kospi up 0.6 percent and the S&P/ASX 200 up 1.1 percent, with Woodside, Santos and Inpex among the day’s leading gainers.

Officials at all three foreign ministries said working-level meetings to finalize the framework’s governance protocols would begin in Canberra in mid-May, with the first joint ministerial review scheduled for September in Seoul.