Top 10 Strategic Petroleum Reserves by Country 2026

Strategic petroleum reserves held by national governments now total close to 3 billion barrels globally, with China alone accounting for more than a third of that figure as of mid-2026. These government-controlled stockpiles are distinct from proven oil reserves still in the ground — they are extracted, refined or crude barrels held specifically for emergency supply disruption, and the country-by-country ranking has shifted significantly over the past two decades as China has built out capacity that the United States once held alone.

The ranking below covers the ten largest national strategic petroleum reserves by current holdings, with the storage infrastructure and operators behind each one.

How We Ranked the Top 10 Strategic Petroleum Reserves

Countries are ranked by current estimated barrels held in government-controlled strategic petroleum reserves, using the most recent figures from national energy agencies, the International Energy Agency (IEA), and energy market data providers. Where figures from different sources diverge — a common issue given inconsistent reporting on bonded versus strategic-only stock — both figures are noted with their source.

1. China — 1.13 Billion Barrels

China holds the largest strategic petroleum reserves in the world, with approximately 1.13 billion barrels held across its national emergency network as of 2026. The reserve was built in three phases starting in 2008, originally targeting 90 days of import coverage by 2020. Storage is split between government-controlled tanks and mandated commercial reserves held by state operators including Sinopec and PetroChina, alongside joint-venture capacity operated by Vopak at terminals in Huizhou and Tianjin.

2. Japan — 470 Million Barrels

Japan’s reserve sits at roughly 470 million barrels, equivalent to over 250 days of domestic consumption — the highest import-coverage ratio of any major economy. The stockpile is split across eleven state-controlled storage bases, including the Tomakomai and Shibushi sites, plus mandated private reserves held under the Petroleum Stockpiling Law. ENEOS and Idemitsu Kosan hold the largest share of the private-sector storage tied to this system.

3. United States — 415 Million Barrels Held, 727 Million Barrel Capacity

The US Strategic Petroleum Reserve holds 415 million barrels as of 2026, well below its 727-million-barrel salt cavern capacity following major drawdowns earlier in the decade. The reserve is stored in underground salt caverns along the Gulf Coast and historically held the top global ranking before China’s reserve overtook it. Commercial storage capacity in the same region is dominated by independent operators including Kinder Morgan and Enterprise Products Partners.

4. Spain — 150 Million Barrels

Spain manages approximately 150 million barrels to meet EU and IEA supply protection mandates requiring 90 days of net import coverage. Exolum (formerly CLH) operates almost the entirety of Spain’s pipeline and tactical storage network underpinning this reserve, making it the dominant logistics operator in the country’s liquid fuel system.

5. France — 120 Million Barrels

France reports around 120 million barrels of crude and finished product reserves, with half managed by the government-mandated entity SAGESS and the remainder held directly by producers including TotalEnergies. Jet fuel stocks are subject to a separate 55-day consumption rule under French stockholding legislation.

6. Germany — Estimated 110–250 Million Barrels

Germany’s reserve figures vary by source: 2026 market data puts current holdings at around 110 million barrels, while the long-standing 90-day refiner mandate under the Erdölbevorratungsverband (EBV) implies a considerably larger total closer to 250 million barrels. The reserve is centered on the Etzel salt caverns near Wilhelmshaven, with Oiltanking operating one of the largest independent storage footprints in the same Hamburg and Western Europe region.

7. South Korea — 79 Million Barrels Strategic, 286 Million Barrel Total Capacity

South Korea holds an estimated 79 million barrels in dedicated strategic stockpiles, within a national storage system with total capacity of 286 million barrels split between government and mandatory industry stocks. The country’s stockpile has historically run well above the IEA’s 90-day minimum, hitting a record 240 days of import coverage in 2014.

8. Italy — 76 Million Barrels

Italy secures around 76 million barrels of net import protection under the same EU directive framework covering Spain, France, and Germany. The country’s reserve obligations have come under renewed scrutiny in 2026 amid broader EU discussion of energy security following supply disruptions tied to the Russian invasion of Ukraine.

9. Iran — Estimated 71 Million Barrels

Iran is reported to hold an average of 71 million barrels across on-land strategic and bonded storage, though facility-level capacity data from individual sites — including Ahwaz, Goureh, and Kharg Island — points to a smaller dedicated strategic-only total. The discrepancy likely reflects the inclusion of commercial bonded storage alongside government-held stock. National Iranian Oil Company operates the bulk of this infrastructure.

10. United Kingdom — 68 Million Barrels

The UK protects its market with approximately 68 million barrels of emergency inventory, a figure that has drawn increased attention in 2026 as domestic production has fallen to record lows. The UK’s energy security position now depends more heavily on strategic and commercial storage than at any point in the past two decades.

The 90-Day Import Rule

Most countries on this list are members of the International Energy Agency, which mandates that member states hold strategic petroleum reserves equal to at least 90 days of the previous year’s net oil imports. Net oil exporters within the IEA — including Canada, Mexico, and Norway — are exempt from this requirement, which explains why major producing states such as Saudi Arabia and Venezuela carry comparatively modest strategic stockpiles relative to their production volumes.

Strategic Reserves vs. Commercial Storage Operators

National strategic petroleum reserves are typically held in government-owned or government-mandated facilities, distinct from the independent commercial terminal operators that lease tank space to oil majors and trading houses. For a comparison of the commercial side of this market, see our ranking of the world’s largest crude oil storage companies, which covers operators like Vopak, Oiltanking, and Kinder Morgan that frequently sit alongside — but operationally separate from — strategic stockpiles in the same regions.

What to Watch in 2026

China’s continued build-out and the US drawdown gap leave the door open for further rebalancing of this ranking through 2026, while EU member states face renewed pressure to tighten compliance following recent supply shocks. Expect further divergence between strategic-only and total bonded storage reporting as more countries adopt China’s hybrid government-commercial model.

Source: International Energy Agency