On 14 July, OFAC designated a further tranche of vessels linked to Hossein Shamkhani. Alongside the tankers, the agency named four cargo vessels suspected of carrying arms on behalf of the IRGC, understood to have moved weapons from Iran to Russia in the period before the Iran war.
Deep Blue Intelligence had all four on our Russian Arms Trafficker watchlist a year before the designation.
The vessels that were not who they claimed to be
The four vessels were broadcasting under Palau MMSIs. Those registrations were fabricated. Working with Bloomberg’s Ben Bartenstein, who first identified the fleet more than two years ago, the DBI team unpicked the real Iranian MMSIs sitting behind the dummy identities.
That work matters beyond the individual vessels. Identity fraud of this kind is the mechanism by which illicit fleets stay screenable-but-clean. A vessel with a plausible flag and a clean list check passes. The deception is not in the cargo; it is in the paperwork and the transponder.
Why a year matters
OFAC’s Adani settlement in May made the agency’s expectation explicit. Energy importers are expected to monitor for shadow fleet typologies, and to spot deceptive behaviour before the vessels involved appear on a list. In that case all of the vessels were designated after the transactions (DBI had them all), yet that did not spare Adani a $275 million penalty.
The Shamkhani designations are the same lesson in a different cargo. By the time OFAC names a vessel, anyone who has transacted with it has already taken the exposure.
DBI exists to close that gap. Our team maintains watchlists covering vessels engaged in the trade of Russian, Iranian and Venezuelan oil and petroleum products, and vessels suspected of arms trafficking on behalf of Russia. We have identified 95% of relevant tanker vessels designated by OFAC before the agency sanctioned them, often over a year in advance.
What this means for you
If your compliance process begins with a list check, it begins too late. The vessels that will damage you are the ones that pass today and get named next year. DBI sits inside the PurpleTRAC screening workflow. The intelligence report appends automatically to the screening result your team already runs. No separate research task, no waiting on a designation.
Ask us what is on the list today.