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Josh Plumley @josh.hullcipher.com · 02/10/2026

She is not alone: plenty of listed ships still broadcast Cameroonian numbers. The number only says which flag a ship claims, not whether that registry still has her. Thanks for the tag.

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Josh Plumley @josh.hullcipher.com · 02/10/2026

At 8:29 AM EDT today SMYRTOS was still anchored off Portland, Dorset, broadcasting a Cameroonian number. The UK seized her there on 14 June, after Cameroon had struck her off its register. Her transponder still says Cameroon. hullcipher.com/vessel/9389100

hullcipher.com

SMYRTOS (IMO 9389100) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel SMYRTOS (IMO 9389100), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 02/10/2026

On 1 Oct we first heard her on a Russian number, as TVERDYNYA. None of her lists uses that name. She's one of 17 listed tankers we heard stopped off Ust-Luga and Primorsk this morning. hullcipher.com/vessel/9231509 Is anyone comparing how long the sanctioned ones wait with the rest?

hullcipher.com

TVERDYNYA (IMO 9231509) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel TVERDYNYA (IMO 9231509), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 02/10/2026

One of the tankers in that queue has been there since 10 Aug. TREND (IMO 9231509), a Suezmax on five sanctions lists, reached the anchorage off Ust-Luga that day. Every position we've had for her since is out there, with a few days' gap in late August.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

Correction to post 2: we hadn't looked yet. In our archive since 1 Aug, three of the four were on air under their own names, on Russian numbers. We last heard CHAIVO on 30 Sep off Nakhodka, PORTOVYY on 27 Sep off Zhoushan, China, and AVACHA on 10 Sep off southern Africa. GALLE ENERGY, never.

Table of the eight ships the UK listed on 1 Oct 2026, with the date each of the US, EU and Canada listed it, and when we last heard it. CHAIVO, PORTOVYY, AVACHA and GALLE ENERGY are on no other list; we last heard them 30 Sep, 27
Sep, 10 Sep and never.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

OFAC still lists POSIET as ZVEZDA 045. The last time we heard her, on 12 Aug in the Sea of Okhotsk off Hokkaido, she was broadcasting the UK's name. hullcipher.com/vessel/9904704 Has anyone seen the other four on AIS lately, and under what names?

hullcipher.com

KONSTANTIN POSIET (IMO 9904704) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel KONSTANTIN POSIET (IMO 9904704), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

Those four are PORTOVYY, AVACHA, CHAIVO and GALLE ENERGY. We've never heard a transponder on any of their IMO numbers, so we can't tell what they call themselves on air. gCaptain has more on the LNG carriers: gcaptain.com/uk-sanctions-five-lng-…

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Josh Plumley @josh.hullcipher.com · 01/10/2026

The UK added eight ships to its Russia list on 1 Oct. Three are ice-class LNG carriers the US blocked back in June 2024: ALEKSEY KOSYGIN, PYOTR STOLYPIN and KONSTANTIN POSIET. Four more are on no other list we follow, and one, BEBEK-E, was already on the EU's.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

And a correction. The 15 and 14 were ships heard across that stretch of water, not at the berth. From 8 AM EDT on 28 Sep we heard at most four others an hour there, and none in half those hours. At 2 AM EDT on 29 Sep that jumped to 15. Both were back by 3:13 AM. So that was our coverage.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

Update on these. Great Jacombo came back at 4:08 AM EDT on 26 Sep on the same Tuzla berth, as FIANIT on a Russian number. None of her six lists uses that name or publishes a number for her. VesselFinder shows FIANIT as well. hullcipher.com/vessel/9319703

hullcipher.com

FIANIT (IMO 9319703) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel FIANIT (IMO 9319703), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

Correction: your screenshot has 273126830 renamed at 11:31 AM EDT on 30 Sep, about 80 minutes after her Cameroon number went quiet, not 15 hours. We just didn't hear the Russian number until 1:18 AM. That answers my question too, thanks.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

VesselFinder still showed her as CHIOS on Cameroon that morning, and four of her five sanctions lists call her TREND. Where did you first see the name TVERDYNYA? We didn't hear it until the Russian number came up.

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Josh Plumley @josh.hullcipher.com · 01/10/2026

She has. A Russian number, 273126830, came up at 1:18 AM EDT on 1 Oct on the same spot, 18 nm off Ust-Luga, already calling herself TVERDYNYA. Her Cameroon number had gone quiet 15 hours earlier. We only ever heard CHIOS on that one. hullcipher.com/vessel/9231509

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Josh Plumley @josh.hullcipher.com · 30/09/2026

No sanctions list publishes the new number. Her AIS still says FOR ORDER, with an ETA of 1 Sep. Has anyone seen her on Equatorial Guinea's registry, or is it only the MMSI so far?

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Josh Plumley @josh.hullcipher.com · 30/09/2026

She switched while waiting off Morocco. Her Cameroon number went quiet at 10:39 AM EDT on 29 Sep, and 631010144 for Equatorial Guinea came up at 9:15 PM about 3 nm away. She'd stayed within 65 km of there since 6 Sep. hullcipher.com/vessel/9255244

hullcipher.com

WHITE CONDOR I (IMO 9255244) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel WHITE CONDOR I (IMO 9255244), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 30/09/2026

The Russian side looks busier. In and off Ust-Luga we heard 23 ships on sanctions lists stopped on 28 Sep. A typical August day had 13. That takes in the berths, so it isn't all queueing, and Primorsk's count hasn't changed much. Has either port said anything about loading delays?

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Josh Plumley @josh.hullcipher.com · 30/09/2026

One of the four has moved on. SHPINEL left that anchorage at 5:30 PM EDT on 29 Sep and was stopped off Primorsk by 4:12 AM on 30 Sep. VesselFinder logged her arrival at Primorsk's anchorage at 4:15. hullcipher.com/vessel/9346744

hullcipher.com

SHPINEL (IMO 9346744) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel SHPINEL (IMO 9346744), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 29/09/2026

Only SHPINEL broadcasts a name none of her lists uses. All six call her MA JIN; she switched name and took a Russian MMSI off Busan on Jul 28. All four sit 8–10 nm off Estonia's islands. Do the patrols ever hail or board a listed ship there, or just watch? hullcipher.com/vessel/9346744

hullcipher.com

SHPINEL (IMO 9346744) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel SHPINEL (IMO 9346744), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 29/09/2026

We heard 46 ships stopped at that anchorage between 2 and 6 AM EDT today. Four are on sanctions lists: ARLAN, VIKRAM, OASIS and SHPINEL. Six listed ships sat there on each of the last two days, level with our busiest in two months. Most August days had two.

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Josh Plumley @josh.hullcipher.com · 28/09/2026

Not just the flag. They also moved as a group: left Egypt within 8 days of each other, were all in the Gulf of Finland by 15 Sep, and left within 4 days. The UK names Cape Gemi Isletmeciligi as Stilgar's owner/operator; I have nothing for the other four. Which office addresses repeat?

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Josh Plumley @josh.hullcipher.com · 28/09/2026

They left it between 18 and 22 Sep. Four have had Port Said typed as their destination since 17 to 21 Sep, and Azorin has Singapore. That's what the crews typed, nothing more. I can't see registry data, so I can't tell who manages them. Does anyone know if one company runs all five?

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Josh Plumley @josh.hullcipher.com · 28/09/2026

Yes, all five are on Sierra Leone numbers, and no sanctions list publishes any of them. This is their way back. They left Egypt's north coast between 20 and 28 Aug, passed Gibraltar between 29 Aug and 3 Sep, and reached the Gulf of Finland by 15 Sep.

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Josh Plumley @josh.hullcipher.com · 24/09/2026

She was still on it at 11:00 UTC on 24 Sep, and VesselFinder shows Equatorial Guinea too. I can't see registry data, so I can't tell whether that registration is real. Has the Swedish Transport Agency said whether it accepts it? hullcipher.com/vessel/9321172

hullcipher.com

SEA OWL I (IMO 9321172) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel SEA OWL I (IMO 9321172), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 24/09/2026

TV4 reported on 14 May that Cameroon had called the flag change false. Her AIS stayed on the Cameroon number, 613442740, until 06:45 UTC on 29 July. At 07:20 UTC the same ship came up on 631010129, an Equatorial Guinea number with call sign 3CAN57, at the same anchorage.

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Josh Plumley @josh.hullcipher.com · 24/09/2026

Same berth each time, about two days between numbers. She grounded off Bozcaada in January, per gCaptain: gcaptain.com/shadow-fleet-tanker-qendil-runs-aground-in-turkey-following-ukrainian-drone-strike/ No registry data on my side, so I can't say who owns or manages them now. Does anyone know?

gcaptain.com

Shadow Fleet Tanker 'Qendil' Runs Aground in Turkey Following Ukrainian Drone Strike

The Russian “shadow fleet” oil tanker Qendil ran aground off Turkey’s Bozcaada island on Sunday while transiting from Alia?a to Yalova, prompting Turkish authorities to dispatch emergency tugboats to ...

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Josh Plumley @josh.hullcipher.com · 24/09/2026

Her third MMSI in two months, and the third listed tanker at Tuzla to take a Russian number in a month. ACHILLES (9368223) came back as VEZUVIAN on 27 Aug. SEALION I (9234501) kept STABILIS I on a new number on 6 Sep. Three call signs from one block: UAYG5, UAYG8, UAYG9. No list publishes any.

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Josh Plumley @josh.hullcipher.com · 24/09/2026

A tanker six lists can't agree on has picked a fourth name. IMO 9310525 is OILSTAR to the EU, Australia and Switzerland. IONIA to the UK and Canada. QENDIL to New Zealand. Since 13 Sep she's been on air as GIATSINT, on a Russian MMSI, still at the Tuzla yards. hullcipher.com/vessel/9310525

hullcipher.com

GIATSINT (IMO 9310525) — HullCipher

Live AIS position, silence history, and prohibited-port-call records for sanctioned vessel GIATSINT (IMO 9310525), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 21/09/2026

When one ship goes quiet we can't tell if it stopped or our coverage did. So we count who else nearby kept transmitting: 15, 14 and 36 other ships through those three. In a repair yard that's often just the transponder switched off. What's alongside at Tuzla this week? hullcipher.com/vessel/9319703

hullcipher.com

GREAT JACOMBO (IMO 9319703) — HullCipher

Live AIS position, dark-event history, and prohibited-port-call records for sanctioned vessel GREAT JACOMBO (IMO 9319703), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 21/09/2026

Three sanctioned tankers at Istanbul went quiet on AIS within twelve hours on 17 Sep. Great Jacombo (IMO 9319703) at 10:18 UTC and Fu Hai Wan (9368235) at 21:57 UTC, alongside each other at the same Tuzla berth. Lara (9221475) at 13:25 UTC at the anchorage off Yenikapı. None heard since.

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Josh Plumley @josh.hullcipher.com · 20/09/2026

She sailed still drawing 14.7 m and sat 33 days off the El Hamra oil terminal west of Alexandria. Since Sep 5 she's been at Port Said anchorage, drawing 9.0 m. hullcipher.com/vessel/9194983

hullcipher.com

DELIVER (IMO 9194983) — HullCipher

Live AIS position, dark-event history, and prohibited-port-call records for sanctioned vessel DELIVER (IMO 9194983), tracked by HullCipher.

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Josh Plumley @josh.hullcipher.com · 20/09/2026

Might be old news, but here's the part after the headlines. DELIVER (IMO 9194983) left Primorsk laden on Jun 5. The French Navy boarded her off Sicily on Jun 25 and held her in the Gulf of Fos; on Jul 22 she paid a fine and was let go. Then the coverage stops.

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Josh Plumley @josh.hullcipher.com · 18/09/2026

Whatever the answer, the number that survives every edit is the IMO. She's on a Mali MMSI no list publishes; OFAC's record still carries her Panama number. A screen on that, or on any of the four names, misses her today.

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Josh Plumley @josh.hullcipher.com · 18/09/2026

An LPG tanker OFAC lists as BATELEUR (IMO 9045807) has spent the week off Sharjah renaming herself one keystroke at a time: CRAVE on Sep 13, BRAVE by the 14th, BRAVO since the 17th. Same transponder, same call sign, same destination. Was someone fat-fingering the name until it stuck?

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Josh Plumley @josh.hullcipher.com · 17/09/2026

The same day on the map, with the other ships that got pushed to the spot too: hullcipher.com?fleet=1&at=2...

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Josh Plumley @josh.hullcipher.com · 17/09/2026

Three sanctioned tankers, real tracks 100 km apart, one point they all keep snapping to: Fokino, Ussuri Bay, 12 Sep. Mirabel (IMO 9511521), He Bo (9408554, on air as Xing Yuan), Vostochny Prospect (9866392). A minute or two on the spot, then back on track. Interference, not a ship lying.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

Can't tell from the record whether Egypt distrusted the flag. It shows a Myanmar CLC in her certificate table and the CLC "missing" in the deficiencies: either a paper seen and not accepted, or none produced. What it does say is the outcome: two deficiencies, zero grounds for detention, released.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

So the sequence: Yangon company formed Jul 2025. Tanker renamed Nov 2025, reflagged to Myanmar Mar 2026. Myanmar CLC issued 4 May. PSC at El Dekheila 11 Aug finds no CLC on board, releases her. CLC expires 9 Sep. She sails for Istanbul 12 Sep. Full paper trail, no proof of insurance at any point.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

Her ISM company in THETIS, "Marn Aung Chanthar Co.", is on the Myanmar register as Marn Aung Chan Thar Co. Ltd: Yangon, 23 Jul 2025, not foreign, activities incl. crude extraction and water transport. Not a forged flag: issued to a company that qualifies on paper. myco.dica.gov.mm

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Josh Plumley @josh.hullcipher.com · 17/09/2026

You're right that Myanmar can't stand behind it. THETIS lists "Myanmar" as issuer of exactly four documents, CLC among them, and RMRS for everything else. Those four are the ones only a flag state can sign.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

Doesn't need to come available. Names aren't unique, so two ships can carry one at once. Since June we've seen 15 names on two different sanctioned IMOs, mostly overlapping: PRIMORYE on two hulls all summer, FLORA on three. BARENTS went from 9278600 to 9384447 on 10 July; both still turn up.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

I'd expect a charterer's vetting to catch that, with three caveats: the flag did issue a CLC (4 May, valid to 9 Sep), so the paper existed and the ship just wasn't carrying it; "Vitol" is what the master told PSC, unverified; and if the cargo wasn't persistent oil, no CLC was needed at all.

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Josh Plumley @josh.hullcipher.com · 17/09/2026

Your 12 Aug report checks out on THETIS-Med: PSC inspection El Dekheila 11 Aug, "Civil Liability for Oil Pollution Damage Cert. — Missing", 0 grounds for detention, released. Voyage charterer listed as Vitol, London. portal.emsa.europa.eu/web/thetis-med/inspections (IMO 9323376)

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Josh Plumley @josh.hullcipher.com · 16/09/2026

The standard says a Class A set slows to one report every 3 minutes once she's set to anchored or moored, from every 2 to 10 seconds under way, so at anchor there's much less for a satellite to catch on a pass. Still twenty an hour though. I wouldn't put a full day on the rate.

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Josh Plumley @josh.hullcipher.com · 16/09/2026

Thanks. So between us that's the last signal around 07:54 UTC on the 6th and nothing at Tobruk a week later. The whole Med leg and the port call off AIS then. I'll keep an eye out for her coming back up.

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Josh Plumley @josh.hullcipher.com · 16/09/2026

Thanks, that's useful. Ours stops at 04:05 UTC that morning, 63 km south of Motril, so your source has her nearly four hours longer. Do you get a position with that 07:54 fix? Terrestrial coverage thins fast east of there, so I'd guess we lost her before she went quiet.

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Josh Plumley @josh.hullcipher.com · 16/09/2026

We lost her early on 6 September, eastbound in the Alboran Sea at 10 knots with To Order as her destination. She hasn't come back up since, at least where we can hear. So the run to Tobruk looks to have been off AIS. Was she transmitting at all when she docked? hullcipher.com/vessel/9349291

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Josh Plumley @josh.hullcipher.com · 15/09/2026

Last we heard her was that evening, 150 km southeast of Nakhodka, making 10 knots for Murmansk, and nothing since. Write-up: bsky.app/profile/josh.... Your photo has her 220 km west of that on the 7th, so she crossed the gap dark. Any sign she called Kozmino?

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Josh Plumley @josh.hullcipher.com · 15/09/2026

One of the tankers in that gCaptain piece is one we follow. MIRABEL, IMO 9511521, hadn't been heard since 1 August up in the Barents Sea. She came back on AIS on the 12th just south of Askold, and for six hours her position kept snapping to one spot in Ussuri Bay.

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Josh Plumley @josh.hullcipher.com · 15/09/2026

Thanks Leif, that's kind! We can see the gap between the last position on the old MMSI and the first on the new, for every hull that's switched this summer. What we can't see is when the registry itself changed. Is there a public record of the flag date you'd trust, so the two could be lined up?

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Josh Plumley @josh.hullcipher.com · 15/09/2026

She wasn't alone. Ten other ships were pushed to the same spot that morning, two of them sanctioned tankers, HE BO and VOSTOCHNY PROSPECT. Declaring Murmansk for Oct 5. hullcipher.com/vessel/9511521 gcaptain.com/russia-expands-arctic-oil-shadow-fleet-with-dark-sts-transfers-in-sea-of-japan/

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