Japan will compensate refiners, trading houses and petrochemical companies for part of the extra cost of sourcing crude outside the Strait of Hormuz, after cabinet approval yesterday of three bills that mark Tokyo's most direct intervention yet in energy shipping economics.

The stakes are stark in the government's own numbers. Japan sourced 94% of its crude oil imports from the Middle East last year, and official figures put dependence on the Strait of Hormuz at 93%. That second figure deserves scrutiny: it counts countries of origin, not actual tanker movements, so it may overstate — or understate — how much crude physically transits the waterway. The government has not published the movement-based figure.

What would the money actually cover?

The first bill establishes a grant scheme paying part of the additional cost of buying crude and petroleum products from alternative suppliers. The state-backed Japan Organization for Metals and Energy Security (JOGMEC) would administer it, funded by contributions collected from oil importers themselves.

The commercial arithmetic is unforgiving. A tanker voyage from the US Gulf Coast to Japan takes 45 to 60 days via the Cape of Good Hope, or 35 days through the Panama Canal, against roughly 20 to 30 days from the Middle East. In plain terms, shifting to American crude more than doubles voyage time on the longer routing — meaning more tonne-miles, more ships tied up per barrel delivered, and higher freight per cargo. The subsidy scheme is, in effect, an admission that diversification does not pay for itself at current rate levels.

The second bill tackles insurance, the quieter chokepoint. Tokyo would partially cover hull and cargo insurance claims when international reinsurers withdraw cover because of geopolitical risk. Separate legislative changes would extend existing government-backed protection and indemnity arrangements beyond crude oil to petroleum products and LNG — a broadening that signals Tokyo expects the risk perimeter to widen, not narrow.

The third bill would give JOGMEC new powers to invest in and guarantee financing for overseas pipelines offering alternative export routes.

Why now?

Industry minister Ryosei Akazawa said the legislation was intended to fundamentally strengthen Japan's energy supply security. The government hopes to secure parliamentary approval during the current extraordinary Diet session — a timeline that suggests urgency, though passage dates remain uncertain.

That urgency has a physical trigger. Two more commercial vessels, a tanker and a containership, were reported struck by unidentified projectiles in the Strait of Hormuz on Tuesday, with attacks along the waterway at their highest levels since the conflict began on February 28.

The threat is also changing shape. Two senior Iranian officials told Reuters that Tehran intends to expand attacks into the Gulf of Oman and beyond, partly to keep oil prices elevated ahead of November's US midterm elections. A US military official said Iranian forces are using spotters aboard small boats to identify targets, following the destruction of their radar capabilities.

What does this mean for tankers and shippers?

For tanker owners, the implications cut both ways. Any structural shift from the Middle East Gulf toward the US Gulf Coast would absorb VLCC capacity through longer hauls, tightening supply — but only if Japanese buyers actually move volumes, and the origin-based 93% figure suggests the shift has barely begun. For refiners and forwarders moving product into Japan, extended government-backed P&I cover for petroleum products and LNG reduces the risk of uninsurable cargoes, the scenario that grounded tonnage in past Gulf crises.

For the Japanese treasury, the cost is the open question. The bills specify mechanisms, not budget totals, and the government has not said what share of the extra procurement cost the grants would cover.

If parliament approves the package this session, watch the US Gulf-to-Japan route for the first evidence of whether subsidy alone can redirect crude flows that price signals so far have not.