Kpler put Chinese seaborne crude imports at roughly 6.78 million barrels a day in May 2026, against 8.5 mbd in April and a 10.66 mbd 2025 average1. It is the lowest May print in almost a decade. Onshore crude stocks slipped to about 1,232 million barrels from the 1,251mb early-May peak, and state-refiner margins clawed back to around -$2/bbl from -$60 in mid-April.
That withdrawal is the driver behind the Brent-Dubai EFS (the Exchange of Futures for Swaps that prices Atlantic-basin Brent against Middle Eastern Dubai crude) pulling off its $6-plus peak. Trading desks read the compression as the Hormuz war premium deflating on the 23 May Iran memorandum that took Brent down $14. The barrels say otherwise: Dubai-linked demand collapsed while Dubai supply held, so the spread narrowed because the marginal Eastern buyer vanished, not because Hormuz reopened.
State-refiner margins at -$2/bbl stay negative, giving Chinese runs no economic pull to restock, and onshore stocks have barely drawn from the peak. A move back toward the 2025 average is a 3.9 mbd swing, north of 200 incremental VLCC (Very Large Crude Carrier) liftings a year on the Middle East-China leg, enough to snap the EFS wider before the freight curve can reprice.
Goldman Sachs argued in a late-May note that demand destruction at $90-100 Brent is keeping China sidelined for longer2, the counter-case worth tracking. Kpler, a flow-analytics vendor, also has a commercial reason to frame a pause as a coiled spring. Beijing's return is a question of when rather than whether, and the EFS screen at this level is pricing never.
