China unlocks oil stocks as war strains supply

China has authorised state oil refiners to draw on commercial crude reserves as the Middle East war enters its sixth week, a move that points to mounting concern in Beijing over supply security, refinery operations and fuel stability in the world’s biggest crude importer. The decision marks a notable shift after reporting in March indicated that access to such reserves had been denied, underscoring how sharply the market backdrop has changed.

The policy adjustment comes as the conflict centred on Iran has disrupted flows through the Strait of Hormuz, a route that handled about 20 million barrels a day of crude and oil products in 2025 and remains one of the most critical chokepoints in global energy trade. The International Energy Agency said in March that the war had created the biggest supply disruption in oil market history, with flows through Hormuz falling from around 20 million barrels a day before the war to only a trickle.

For China, the timing is especially sensitive. State refiners have already been grappling with higher feedstock costs, disrupted shipping routes and a scramble for replacement barrels from outside the Gulf. Reuters reported in late March that Sinopec, the country’s largest refiner by capacity, had sought access to state reserves after deciding against buying Iranian crude, while also trimming refinery runs. Earlier reporting in mid-March said China had been building inventories rather than drawing them down, suggesting Beijing initially preferred to preserve stocks.

That stance now appears to have softened. Bloomberg reported on April 10 that authorities had given state refiners the green light to tap commercial reserves. While the precise volume and duration were not publicly disclosed, the move is significant because it signals Beijing is willing to use part of the country’s stock cushion to smooth supplies for domestic processing rather than rely solely on the spot market at a time of exceptional volatility.

The wider market has been under intense pressure even as talk of a ceasefire has briefly cooled futures prices. Reuters reported that physical crude markets in Europe and Africa remained extremely tight despite a temporary truce, with buyers in Asia and Europe competing aggressively for non-Middle East barrels. Another Reuters report said U. S. crude premiums had surged to record highs as importers sought alternatives to Gulf supplies. That matters for China because replacing lost or delayed Middle East cargoes has become more expensive just as refining margins in parts of Asia remain fragile.

Supply conditions deteriorated further this week after attacks on Saudi energy infrastructure cut output capacity by around 600,000 barrels a day and reduced throughput on the East-West Pipeline by about 700,000 barrels a day, according to Saudi state media cited by Reuters. The pipeline is vital because it allows exports to bypass Hormuz via the Red Sea. Damage there narrowed one of the few remaining alternative routes for Gulf producers trying to keep oil moving to Asian customers.

Asian refiners have already felt the strain. Reuters reported that seaborne crude imports into Asia in April were estimated at 19.22 million barrels a day, sharply below the three-month average of 25 million barrels a day. Although refined fuel prices eased after hopes of a truce, the same report said the market was still stressed and that it could take months for normality to return even if shipping improves. For Beijing, releasing commercial stocks is therefore less a dramatic emergency measure than a tactical effort to bridge a period of dislocation.

The decision also reflects China’s domestic balancing act. Authorities have been trying to keep fuel output steady even as weak underlying demand and higher crude costs squeeze refiners. Reuters reported on April 2 that officials had pressed independent refiners to maintain production despite the surge in oil prices and wartime disruption. That suggests Beijing is seeking to avoid sharp swings in fuel availability or industrial costs while preserving broader economic stability.

There is also a geopolitical layer. China has opposed any overtly force-based international response around Hormuz and has pushed for de-escalation at the United Nations, according to Reuters reporting on Security Council negotiations. At the same time, the reserve release shows that Beijing is preparing for a conflict that may not be resolved quickly and for shipping conditions that may remain uncertain even if diplomatic language softens.