UAE Runs Dark Tankers Through Strait of Hormuz: 6 Million Barrels Moved in April as ADNOC Tests Iranian Waters

Emirati state energy giant ADNOC has been moving crude oil through the Strait of Hormuz with vessel transponders deliberately disabled, according to shipping data reviewed by Reuters, industry sources, and satellite tracking. At least six million barrels of Upper Zakum and Das crude exited the Gulf in April alone via four tankers operating without active identification signals—a tactic mirroring the so-called ghost fleets used by sanctioned Iranian operators before regional hostilities escalated.

The operation signals a calculated risk by UAE-aligned actors to unlock oil supplies effectively bottled up amid heightened tensions. Unlike the broader U.S.-Iran maritime standoff triggered by Trump's counter-blockade of Iran's own Strait closure, Abu Dhabi appears to have carved out a narrow commercial corridor, betting that limited shipments may escape the attention of Iranian drone patrols and interdiction forces. Iraq, Kuwait, and Qatar have by contrast largely withheld comparable shipments, leaving the UAE as the primary Gulf exporter still threading cargo through the contested waterway.

The tactical resemblance to pre-war Iranian dark-fleet operations has drawn scrutiny from analysts tracking sanctions enforcement and maritime security. ADNOC's willingness to run disabled transponders places the shipments in legal and reputational gray territory, even as Asian buyers—likely from China, India, or South Korea—appear willing to accept the associated risks for access to Gulf crude. For now, the route remains operational, but each convoy increases exposure to potential interception or escalation.