China oil reserves: how Beijing protected global fuel prices — NRG-IA

Beijing's Massive Inventory Drawdowns Cushion the Middle East Crisis — What Happened China’s seaborne crude imports collapsed to 6.78 million barrels per day in May, Kpler data shows, leaving massive Gulf volumes available for European markets. Instead of competing for Middle Eastern grades during the escalation of the Iranian conflict, Chinese refiners deployed an unexpected strategy: they halted spot market purchases and turned heavily to their domestic stockpiles. This move acted as a global safety valve, preventing a supply shock that traders had previously priced in as inevitable. The International Energy Agency (IEA) estimates that Beijing drew down no less than 41 million barrels of crude from its inventories during June. This represents one of the largest monthly stock draws on record in China. By meeting domestic refinery demand directly from storage, Chinese operators bypassed the price spike in Middle Eastern grades, leaving Gulf cargoes free to flow toward European and other Asian buyers. The drop in Chinese seaborne imports to 6.78 million bpd in May marks a near-decade low. The decline is stark compared to the 8.5 million bpd imported in April and sits well below the projected 2025 average of 10.66 million bpd. Crucially, actual Chinese refinery runs did not fall in the same proportion, confirming that the import deficit was fully covered by drawing down commercial storage. Simultaneously, a massive volume of Iranian crude—estimated by market analysts to be between 30 and 34.5 million barrels—remained stranded on water or in floating storage across Southeast Asia. The refusal of Chinese refiners to purchase these delayed cargoes due to heightened logistical and geopolitical risks has temporarily blocked traditional trade routes, leaving millions of barrels without an immediate buyer. Squeezed Refining Margins and the 2025 Strategic Stockpile Build This major shift in trade flows is driven by two distinct economic causes. On one hand, China’s independent "teapot" refiners, alongside major players like Shenghong Petrochemical, faced severely squeezed profit margins. Slowing domestic fuel demand in China, combined with elevated international crude prices, forced these refiners to cut operating rates to avoid direct financial losses. On the other hand, China possessed a massive supply buffer built during lower-price environments. Estimates from the U.S. Energy Information Administration (EIA) show that Beijing spent much of 2025 purchasing roughly 900,000 barrels per day for strategic and commercial storage whenever global prices softened. Consequently, by May, Chinese refinery storage held over 300 million barrels of crude—enough to cover the import shortfall for 60 to 75 days without forcing a reduction in product output. Saudi Aramco’s Aggressive Discounts and the Shielding of Europe The absence of the world's largest crude importer from the Middle Eastern spot market triggered immediate pricing consequences. National oil giant Saudi Aramco was forced to implement consecutive and aggressive price cuts for its flagship Arab Light grade destined for Asia. The discounts were substantial: a $4 per barrel cut in June, followed by a $6 reduction in July, and an $11 cut in August, culminating in a $1.50 discount against the regional Oman-Dubai benchmark. This surplus of cheaper Gulf crude, rejected by China, quickly rerouted toward India and Europe. For European markets, including Romania, this additional flow acted as a critical shield against high retail fuel prices. Instead of experiencing a spike in gasoline and diesel costs due to the Iran conflict, the European market was supplied with accessible seaborne crude, keeping Brent prices stable and protecting national economies from renewed inflationary pressures. Autumn Outlook: Expiring Chinese Buffers and the Risk of a Delayed Rally While Beijing's inventory drawdown stabilized global markets in the short term, this protective mechanism has a finite lifespan. China's commercial refinery stocks are not limitless. While state-controlled Strategic Petroleum Reserves (SPR) actually grew by 8 million barrels after the conflict began, commercial refinery inventories fell by 15 million barrels at an accelerating pace. The key uncertainty for the coming months is when China will return to the spot market to replenish its depleted commercial inventories. If Chinese refiners resume aggressive buying in the second half of the year, demand pressure will instantly return. In this scenario, the next major oil price rally will not be triggered by geopolitical developments in the Middle East, but by the pace of inventory restocking dictated by Beijing, leaving Europe exposed once again to significant price volatility.