Three tankers carry 6 million barrels through Hormuz dark as inventories bleed out

Three tankers carry 6 million barrels through Hormuz dark as inventories bleed out Vessels switched off transponders to avoid Iranian detection, underscoring how precarious the strait's partial reopening remains. Three supertankers carrying a combined 6 million barrels of crude exited the Strait of Hormuz last week (week of 2026-05-11) with their tracking systems switched off, shipping data from Kpler and LSEG showed. The vessels — two VLCCs loaded with Iraqi crude and one carrying Emirati oil — had been stranded inside the Persian Gulf for more than two months after the U.S.-Israeli campaign against Iran shut the chokepoint.² The San Marino-flagged VLCCs Agios Fanourios I and Kiara M each carried 2 million barrels of Iraqi Basrah crude and slipped through the strait on Sunday (2026-05-17), going dark to avoid detection by Iranian forces, traders said. Where the third tanker will discharge its Basrah Medium cargo remained unclear at press time.² The successful crossings come just as the physical oil market is running out of buffer. Reserves of crude and refined products have dropped by 52 million barrels over four consecutive weeks of declines, according to data cited by Fortune. Gunvor Group's head of analysis Frederic Lasserre warned at a late-April conference that if the strait remains largely closed for another month, consuming countries will effectively hit "tank bottoms" — the point at which working inventories can no longer be drawn upon.³ For Tehran, the strait closure has choked off its primary export revenue stream. For import-dependent OECD economies, the drawdowns are accelerating faster than many models anticipated. Inventory data from around mid-May showed crude and product stocks declining at a rate, traders said, that had few parallels outside the 1970s embargo era.³ The three tankers that made it out represent a small fraction of normal transit volumes. Earlier in May, the VLCC Basrah Energy had already loaded 2 million barrels of Upper Zakum crude from ADNOC's Zirku terminal on May 1 before exiting on May 6, a path that mirrored the latest vessels but involved a different crude grade. The pattern suggests some operators are willing to risk Iranian interdiction rather than leave cargoes stranded indefinitely.² The market's reaction has been muted. ICE Brent front-month crude traded at $84.75/bbl on Thursday (2026-07-16), up 0.52% on the day but still well below spike levels seen in the immediate aftermath of the strait closure. The absence of a sharp price response reflects skepticism among traders that three vessels herald a sustained reopening.¹ Meanwhile, the shadow fleet carrying sanctioned Russian and Iranian oil faces its own squeeze. Blacklisted tankers must take longer routes to avoid inspections and transfer cargoes more often to obscure origin, the Economist reported. The volume of sanctioned oil loitering at sea — much of it accumulating off the Chinese coast — has grown as a result. The parallel disruption in the Gulf and the tightening sanctions enforcement are compressing available tonnage across both basins.⁴ Natural gas has largely decoupled from the oil story. NYMEX Henry Hub front-month futures were flat at $2.89/MMBtu on Thursday (2026-07-16), reflecting the domestic supply-demand balance rather than Hormuz risk. The most recent weekly storage report showed a 52 Bcf withdrawal, well below the five-year average draw of 168 Bcf, with inventories running 141 Bcf above last year's level.¹ For oil traders, the variable to track is whether another four weeks of depleted inventories and restricted strait access force a price-discovery move of the kind Gunvor's Lasserre described as a "material overshoot to the upside." The three tankers that cleared the waterway provide some operational reassurance. Whether they were a one-off or the start of a trickle depends on the next round of cargoes — and on how aggressively Iranian forces respond.^3,5