Country Brief: Japan
Energy Profile
| Metric | Value |
|---|---|
| Crude oil consumption | ~3.1M bbl/day (2025) |
| Crude oil imports | ~2.3M bbl/day (~95% from Middle East) |
| Domestic production | Negligible (~3K bbl/day) |
| Hormuz-dependent imports | ~1.6M bbl/day (~70% of crude imports) |
| LNG imports | ~66M tonnes/year (~6% via Hormuz) |
| Strategic reserves (government) | ~324M barrels (146 days of consumption) |
| Total reserves (government + commercial) | ~440M barrels (254 days of consumption) |
| Refining capacity | ~3.0M bbl/day |
Key Infrastructure
- ENEOS Kawasaki Refinery: 247K bbl/day. Located in Keihin industrial zone, Japan’s largest refining corridor
- ENEOS Mizushima Refinery: 350K bbl/day, largest single refinery in Japan
- Idemitsu Chiba Refinery: Major complex in Tokyo Bay area serving Kanto region demand
- Idemitsu Hokkaido Refinery: 140K bbl/day; northernmost major refining facility
- Kiire SPR Base (Kyushu): 46M+ barrels capacity, largest national stockpile site
- Shibushi SPR Base: National oil storage base; directed to prepare for release on Mar 8
- Okinawa SPR Terminal: 8M+ barrels capacity (crude and refined product storage)
- JERA LNG Terminals: Japan’s largest LNG buyer; operates Kawasaki thermal power station and multiple receiving terminals across Kanto
Key Actors
- METI (Ministry of Economy, Trade and Industry): energy policy, emergency coordination, SPR release authority
- ANRE (Agency for Natural Resources and Energy): METI sub-agency; operational control of reserve releases
- ENEOS Holdings: Japan’s largest oil refiner (1.93M bbl/day total capacity); dominant downstream player
- JERA: Japan’s largest power generator and LNG buyer; JV of TEPCO and Chubu Electric; METI’s agent for strategic buffer LNG procurement
- Idemitsu Kosan: second-largest refiner; multiple refinery and petrochemical complexes
- JOGMEC (Japan Organization for Metals and Energy Security): manages national SPR sites; upstream resource development
- INPEX: Japan’s largest upstream E&P company; operations in Abu Dhabi (ADNOC partnership), Australia (Ichthys LNG)
Crisis Exposure (Hormuz Closure, Day 94 - Ceasefire Indefinite but Fragile)
- ~70% of crude imports (~1.6M bbl/day) transit Hormuz and ~95% come from the Middle East, among the highest exposure of any major economy. The crisis began Feb 28 (Operation Epic Fury) and the air campaign formally concluded May 5, but the strait remains the binding constraint on Japan’s supply
- Strait open on paper, choked in practice: Iran has repeatedly “declared open” but open transits have run near zero since ~May 6, with Iran reportedly charging tolls exceeding $1M per ship. Earlier in the crisis Iran told Kyodo the strait was “open… closed only to ships belonging to our enemies,” but whitelist status now matters less than the physical reality of uncleared mines and absent insurance
- Ceasefire indefinite since Apr 21, repeatedly violated: US strikes Apr 19, May 7, and May 25, plus late-May “defensive strikes” in southern Iran answered by Iranian ballistic missiles on Kuwait. The truce is holding only loosely
- Reopening MoU tentatively reached May 28, still unsigned: Reported terms would extend the ceasefire 60 days, reopen Hormuz with no tolls and require Iran to clear the mines it laid within ~30 days, in exchange for the US lifting its port blockade (in place since Apr 13) and issuing sanctions waivers. Trump added new demands May 29-30 that landed badly in Tehran; neither side has signed. The deal’s fate determines when Japanese cargo flow actually resumes
- Stranded shipping: ~600 tankers stuck inside the Gulf and ~240 waiting outside as of mid-May. Mines remain uncleared and P&I / war-risk insurance has not been restored, so even Japan-bound VLCCs that could load cannot move
- Reserve cushion is the buffer: Government stocks provide ~146 days of cover and combined with commercial inventories ~254 days, the deepest in Asia. After 94 days the margin has eroded but Japan is not near a hard supply wall
- IEA-coordinated release continued: Japan drew on the IEA-coordinated stock release begun in March, with refiners tapping SPR to cover disrupted Gulf cargoes
- LNG exposure limited: only ~6% of LNG imports transit Hormuz; in-storage cover plus JERA’s strategic buffer LNG procurement keep power-sector supply adequate near-term
- Refinery utilization under sustained pressure as sour Gulf crude supply stays disrupted; ENEOS and Idemitsu runs facing throughput management against the reserve draw
- Cost pressure easing: Brent ~$91 (down from the ~$115 WTI peak on Apr 7, off ~19% across May, its worst month since 2020) on ceasefire-extension and reopening hopes. That relieves yen-linked import-cost and utility-cost pressure, but supply-route security stays the core risk while the strait is shut
Structural Vulnerabilities
- Near-total import dependency for crude oil (~95% from Middle East), the most concentrated sourcing of any G7 economy
- 70% Hormuz dependency with zero pipeline bypass options; entirely seaborne supply
- Aging, shrinking refining sector. Capacity down from 4.5M to ~3.0M bbl/day over past decade as domestic demand declines
- Yen weakness amplifies oil price shocks: every $10/bbl increase costs Japan ~$8.4B annually at current import volumes. Brent’s slide to ~$91 from the ~$115 WTI peak eases the cost shock, but it sits above pre-crisis levels and the route risk, not the price, is what threatens supply
- Industrial cascading risk: Toyota, Honda, Nippon Steel and major manufacturers dependent on stable fuel and petrochemical feedstock supply. Production disruptions propagate through global auto and electronics supply chains
- Nuclear restart pace slow, with only ~14 of 33 operable reactors restarted; continued fossil fuel dependency for power generation
- Demographic decline reduces long-term demand but does not resolve near-term crisis exposure
TankerBrief Coverage Angle
Japanese trading houses (Mitsui, Mitsubishi, Itochu), VLCC charterers on the AG-Japan route, energy-focused hedge funds, and defense analysts tracking JMSDF operations. On Day 94 they need: the status of the unsigned US-Iran reopening MoU and its 30-day mine-clearance and toll-removal terms, because that is the gate on when Japanese cargoes can actually sail; mine-clearance and P&I / war-risk insurance restoration tracking (the real blockers, not whitelist status); SPR and commercial reserve drawdown against the ~254-day cushion and any further IEA-coordinated release; ENEOS and Idemitsu refinery utilization; JERA LNG procurement shifts; yen-oil cost sensitivity now that Brent has eased to ~$91; alternative crude sourcing from Russia (Sakhalin) and Southeast Asia; industrial production impact across the Toyota and Honda supply chains; and Red Sea / Bab el-Mandeb risk to the Saudi Yanbu bypass. With transits near zero since ~May 6, Japan is the clearest test case for whether a paper-open strait converts into restored cargo flow.