Japan’s decadelong strategy to insulate itself from Middle Eastern energy disruption has been proved right and rendered unworkable at the same time. For years, Tokyo built what was arguably the world’s most sophisticated liquefied natural gas (LNG) diversification strategy, designed specifically to reduce its exposure to Gulf volatility.
The Hormuz crisis has validated every one of those fears. It has also closed off most of the escape routes Japan spent years building. Tokyo is not facing empty pipelines today—but it is running out of strategic options, and the decisions made in the coming months will shape Japan’s energy posture for a generation.
Japan’s decadelong strategy to insulate itself from Middle Eastern energy disruption has been proved right and rendered unworkable at the same time. For years, Tokyo built what was arguably the world’s most sophisticated liquefied natural gas (LNG) diversification strategy, designed specifically to reduce its exposure to Gulf volatility.
The Hormuz crisis has validated every one of those fears. It has also closed off most of the escape routes Japan spent years building. Tokyo is not facing empty pipelines today—but it is running out of strategic options, and the decisions made in the coming months will shape Japan’s energy posture for a generation.
Japan is not currently running out of gas. There are no imminent blackouts scheduled for Tokyo or Osaka, and JERA’s CEO has acknowledged that only around 5 percent of JERA’s LNG shipments transit the Strait of Hormuz. The crisis is primarily one of price, not volume. But the strategic picture is more troubling than the physical one. Long-term contracts are being hit by force majeure. Spot prices are prohibitively expensive.
The underlying vulnerability is rooted in geography. Japan is an energy-poor island country with almost no domestic fossil fuel reserves, relying on the Middle East for roughly 95 percent of its oil—about 70 percent of which transits the Strait of Hormuz—and around 11 percent of its LNG. The scale of the current disruption tells the story: On March 3, Tokyo-area fiscal 2026 baseload futures jumped 34 percent in just two trading days, hitting an all-time high of 16.38 yen/kWh. When QatarEnergy declared force majeure shortly after, it confirmed that this was not a temporary spike but a structural break.
A cease-fire between the United States and Iran theoretically came into effect on April 8, but negotiations on a permanent settlement remain unresolved. Reports of a tentative framework emerged on May 28, but both sides offered contradictory accounts, and no deal has been finalized. Critically, the Strait of Hormuz remains obstructed—under the reported framework, Iran would have 30 days to remove mines from the waterway. Goldman Sachs has warned that elevated prices could persist through 2027 if constraints remain in place.
The crown jewel of Japan’s diversification effort was JERA’s landmark 27-year supply agreement with QatarEnergy, signed as the ultimate long-term hedge—a multidecade guarantee of stable supply from one of the world’s most reliable producers. The ink was barely dry when Qatar declared force majeure in early March, citing regional instability.
For Tokyo, this was more than a commercial setback. The deal was intended to reduce Japan’s reliance on volatile spot markets by locking in long-term volume. Instead, Japanese buyers have been forced back into those same spot markets at the worst possible moment. The strategy was correct in its diagnosis of the risk. The remedy proved just as fragile as the disease.
While the Middle East falters, Japan’s northern options are equally constrained. For decades, the Sakhalin-2 project in Russia has been a pillar of Japanese energy security—geographically close, reliable, and non-Hormuz. It currently provides approximately 9 percent of Japan’s total LNG supply.
Since the invasion of Ukraine, Washington has maintained sustained pressure on Tokyo to exit the project. Japan has resisted, arguing that Sakhalin-2 is a matter of national survival. The current crisis makes that argument harder to counter than ever. Walking away now would mean finding a replacement in a global market already under severe strain. Tokyo is caught between its G-7 commitments and the cold reality of its power grid—and the calculus has shifted decisively toward staying.
Given a volatile Middle East and a politically toxic Russia, Japan has traditionally relied on Australia as its stable anchor. Australia is Japan’s largest LNG supplier, a partnership built on decades of mutual trust. But even this relationship is under pressure. The Australian government is planning export curbs beginning in 2027, driven by domestic energy shortfalls and political pressure to lower prices for local industry.
For Tokyo, the timeline is acute. A 2027 curb means Japan has about a year to secure alternative volumes before one of its most reliable supply streams begins to contract. Japan’s emergency approach to Canberra on March 14—when Industry Minister Ryosei Akazawa formally requested increased LNG output—illustrated the urgency. The response was polite but complicated by the same domestic pressures that are driving the export curbs. When the choice is between supply security in Sydney or Tokyo, Australia has signaled it will choose Sydney.
With every external option under strain, Japan has tried to turn inward—but the path is blocked by its own regulatory and political history. The Kashiwazaki-Kariwa nuclear plant, the largest nuclear power station in the world by installed capacity, was meant to be part of the answer. Restarting its reactors would reduce Japan’s need for imported LNG significantly, providing reliable baseload power without Hormuz exposure.
For now, that answer is barely begun. Only one of the plant’s seven reactors—Unit 6—has come back, and even that took until April to enter commercial operation, after a generator fault in mid-March delayed a restart originally set for March 18. It was the first reactor Tokyo Electric Power Company has run since Fukushima. The other six units remain dark, held back by the same mix of regulatory hurdles, safety incidents, and local opposition that has dogged the site for over a decade. Nationally, just 15 of Japan’s reactors have been cleared to restart since 2013—leaving the bulk of the fleet idle.
Japan’s predicament is not a unique one. There are direct implications for European energy security—and the arithmetic is unforgiving. Since losing access to Russian pipeline gas, Europe has become Japan’s direct competitor for every available LNG cargo. The JKM-TTF spread—the price gap between Asian and European spot LNG—widened to over $5 per million British thermal units (MMBtu) in Asia’s favor by early March, the strongest signal to divert Atlantic cargoes eastward since 2022. That means LNG shipments that would otherwise have headed to terminals in the Netherlands, Belgium, or the United Kingdom are instead being pulled toward Tokyo, Osaka, and Nagoya.
With European storage at around 30 percent capacity and Asian spot prices already above $25/MMBtu—a three-year high—the two regions are bidding against each other in real time for the same limited supply. Every dollar Japan pays above the European price is a dollar that pushes the global floor higher for everyone. If Japan cannot reduce its spot market dependency through nuclear restarts or secured long-term contracts, it will remain a permanent competitor for Atlantic cargoes, keeping a price floor that disadvantages European industry heading into the 2026-27 winter.
The geopolitical pressure on Russia exposure is unrelenting. The domestic nuclear restart has barely begun—one reactor back, the rest of the fleet idle. Japan’s room to maneuver is shrinking—not because any single option has disappeared, but because all of them are under simultaneous pressure for the first time.
The decisions Tokyo makes in the next six months will be consequential in ways that outlast the current crisis—and they are no longer decisions that can be deferred through careful ambiguity. Three choices in particular cannot be avoided much longer.
The first is Sakhalin-2. Japan must decide whether it is a G-7 ally that accepts the costs of that alignment, or an energy-insecure nation that prioritizes its grid over its geopolitical commitments. There is no position that satisfies both Washington and the laws of supply and demand.
The second is nuclear. Unit 6 at Kashiwazaki-Kariwa is finally running again, but it is one reactor among dozens still idle, and accelerating the broader restart over local opposition will take a government willing to spend political capital its predecessors hoarded. Prime Minister Sanae Takaichi has signaled the appetite, tying a wider nuclear revival to energy security since taking office. The alternative is paying crisis prices for LNG indefinitely.
The third is Australia. Japan needs to lock in supply guarantees before the 2027 export curbs bite—not after. That negotiation needs to start now, while Tokyo still has something to offer Canberra in return.
Japan’s diversification strategy of the last decade was not misconceived. It was simply incomplete when the crisis arrived. The Hormuz disruption did not expose a failure of foresight—it exposed the gap between a correct diagnosis and an unfinished cure. That gap is now costing Japan well over a billion dollars a week. The question is whether Tokyo can make the hard choices required to close it—or whether it will emerge from this crisis having chosen none of the above and simply paid more for the same vulnerability.
