While the world waited with bated breath for the International Energy Agency (IEA) to coordinate a response to the Hormuz crisis, Japan had already pulled the trigger in a small but revealing way.

Kayrros data reveals Japan began quietly drawing down its Strategic Petroleum Reserve (SPR) as early as March 3—well before Thursday’s historic IEA announcement.

 Key Takeaways:

• Proactive Strategy: Japan released over 6 million barrels (MMb) from the Mutsuogawara and Tomakomai Tobu SPR facilities nearly a week ago.

• The “Hormuz Factor”: With 90% of its crude imports originating from the Gulf, Japan is arguably one of the most exposed nations to the current blockage.

• Massive Scale: The March 3 release was only a prelude. Prime Minister Sanae Takaichi has committed to releasing 30 days of oil reserves from the SPR, plus 15 days from commercial stocks starting Monday.

• The Global Context: The IEA just announced a record 400 MMb release, their largest ever, yet Japan’s independent move underscores the urgency for energy-dependent nations.

Japan’s ability to move ahead of the IEA highlights a policy nuance: Member countries can release inventories above the 90-day net import threshold without official consultation. In a crisis, every day of lead time counts.