Japan’s economy faces a potential shockwave if the Strait of Hormuz is closed, and the government has responded by announcing the largest strategic oil release in the country’s history. Prime Minister Sanae Takaichi confirmed that approximately 80 million barrels of state-held crude — 45 days of domestic demand — will be distributed to refiners starting this week. A prior 15-day release from private-sector reserves was approved the previous week. Japan imports over 90% of its crude from the Middle East, and the ongoing US-Israel conflict with Iran has put the strait at immediate risk.
Japan’s economic vulnerability to a Hormuz closure is well documented. Refinery shutdowns, fuel shortages, and supply chain disruptions would ripple through the entire economy within days of a sustained blockage. Takaichi has declined military engagement, citing the postwar constitution, and told US President Trump that Japan cannot deploy naval forces to the region. The government has instead focused its response on deploying strategic reserves and protecting consumers.
The 80 million barrel release is 1.8 times the volume made available after the 2011 Fukushima nuclear disaster. Japan holds approximately 470 million barrels in total reserves, covering about 254 days of domestic demand. Officials say the drawdown is precautionary and does not compromise Japan’s long-term reserve security. Further action remains an option if the situation deteriorates.
Retail gasoline had hit a record ¥190.8 per litre before the government stepped in with subsidies capping prices at ¥170. These subsidies are reviewed weekly to track oil market conditions. Consumer protection analysts have praised the policy for its speed, clarity, and flexibility. The government’s dual approach of supply management and price protection is designed to prevent the energy shock from becoming a full economic crisis.
Panic buying of toilet paper and other goods has emerged following social media speculation about shortages. The trade ministry issued a measured advisory confirming that 97% of Japan’s toilet paper is produced domestically from recycled materials with no connection to oil imports. The paper industry association confirmed supply is stable. Japan is working to prevent the imagined economic shock from compounding the real one, urging consumers to rely on verified facts.