ADNOC's CEO says nearly 1bln of bbls were drained from global inventories since the Strait of Hormuz was disrupted and that the world has eroded its supply buffers, adds stocks of diesels in some markets are at 35yr lows for this time of the season

• Cost of logistics and shipping rose 30% of the cost of a barrel from 5% prior to the Iran war.

Public commentary from the head of a national oil company on the state of global buffers is a recurring feature of supply disruptions centred on the Gulf, and it has historically served two functions at once: a genuine read on physical tightness from an actor with direct visibility of OPEC-grade flows, and a signal to consumers and rivals about the producer's view of where prices should trade. The mechanism described here is the classic Strait of Hormuz transmission channel: not just lost barrels but the freight, insurance and rerouting premium that lifts the delivered cost of a barrel even where crude itself keeps moving, which is the part of the shock that shows up in product cracks rather than the flat price alone. The distinction worth drawing is between crude inventories, which strategic stocks and producer spare capacity can partially offset, and middle distillate stocks, where refinery configuration and regional imbalances leave less room to manoeuvre; diesel at seasonal lows has in past episodes been the component that sustains a rally after the crude premium fades. Prior form for Gulf producers in such episodes is to argue the buffer has eroded faster than importers acknowledge, a framing that precedes resistance to output increases or to price ceilings. The follow-ons are product inventory data, tanker rates and war-risk premia, and whether other producing-state officials echo the same message.