Analysts assess that China's substantial crude oil inventories provide a significant buffer against potential short-term supply disruptions stemming from escalating military conflict in the Middle East, a critical supply region. The immediate impact is viewed more as a price shock than an immediate physical shortage, though prolonged disruption would pose greater risks.

Inventory Buffer and Supply Reliance

China's current total onshore crude inventories are equivalent to about 115 days of the country’s total seaborne crude imports, providing capacity to cushion a brief supply shock. The Middle East is China's largest import source, accounting for 57% of its average 10.4 million barrels per day (bpd) seaborne crude imports in 2025, with 52% of total shipments transiting the Strait of Hormuz. Iran alone supplied an average of 1.4 million bpd, or about 13.5% of China's total imports.

Analyst Assessments of Impact and Response

Analysts note the situation's evolution is key. A large-scale, prolonged physical disruption would be most impactful, but China could dip into storage reserves, slow its stockpiling pace, or adjust refinery runs. Specifically, around 190 million barrels of Iranian crude are already in transit to China, covering roughly four to five months of typical demand, buying time for refiners to secure alternatives. Independent refineries heavily reliant on Iranian crude may have to cut runs if disruptions persist beyond a month.

The conflict is prompting reassessments of inventories, alternative shipping routes, and supply sources. In the near term, China is likely to prioritize securing additional Russian barrels and previously sanctioned floating cargoes due to competitive pricing. While Venezuelan supply is another potential source, its price discount has reduced since 2026, making substitution more expensive. Russia has already increased as a supplier, becoming China's top crude source, accounting for around 20% of imports in recent months.

Market and Operational Realities

The initial impact involves rising risk premiums pushing prices higher. Operationally, as of publication, there is no clear evidence of disruption to upstream operations involving China-linked assets in the Middle East. Oil infrastructure has not been materially affected, though some field production is tentatively halted. The near-term impact appears as delayed liftings, slower voyages, and higher landed costs, with operational damage a larger risk only if infrastructure is directly hit or the Strait of Hormuz remains severely constrained long-term. Reflecting these events, shares of China’s state-owned oil majors surged on Chinese stock markets.