Marathon TS
Oil tanker · Malta · built 2017 · AIS Class A
In short
Marathon TS (Oil tanker, Malta flag) was last seen on AIS on , under way at 4.9 kn, in the North Sea. Its crew-entered AIS destination is MONGSTAD, with an ETA of Oct 3, 2026, 06:00 UTC; its reported draught is 9.4 m (voyage report via BarentsWatch AIS API, received Oct 3, 2026, 09:28 UTC). ISM manager: Tsakos Shipping & Trading S.A. (source: EU MRV (THETIS-MRV) emissions, reporting years 2024–2025).
Current voyage: from Fawley (departed Sep 30, 2026, 08:34 UTC) to MONGSTAD
- Vessel type
- Oil tanker
- Flag
- Malta
- Year built
- 2017
- Gross tonnage
- 62,557
- Size (length × beam)
- 250 m × 44 m
- ISM manager
- Tsakos Shipping & Trading S.A.
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Last reported position
received- Position
- 60.7302° N, 4.1035° E
- Area
- North Sea
- StatusWhat do AIS statuses mean?
- Under way using engine
- Speed
- 4.9 kn
- Course
- 294°
- Heading
- 325°
Last 30 days: 1 port call (Fawley).
Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.
A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)
Try the live demo, no sign-upIdentity & particulars
- Name
- Marathon TS
- IMO numberWhat is an IMO number?
- 9737371
- MMSIWhat is an MMSI?
- 249987000
- Call signWhat is a call sign?
- 9HA4464
- Flag
- Malta
- AIS ship type
- Tanker
- Gross tonnageGross tonnage vs deadweight
- 62,557
- Deadweight (DWT)
- Source: Wikidata, record Q84254573. Added to Voydar on September 23, 2026. Licence: CC0 1.0.113,651 t
- Length overall
- 250 m
- Beam
- 44 m
- Year built
- 2017
MaltaA tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.
Ownership & management
Each line shows where the fact comes from. Links backed by an identifier point to the company page.
- ISM manager
- Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
- Builder
- Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Timeline
Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.
| Date | Event | Source |
|---|---|---|
| Left FawleyAIS-detected | Voydar port-call detector (AIS geofence) | |
| Arrived at FawleyAIS-detected | Voydar port-call detector (AIS geofence) | |
| Left MongstadAIS-detected | Voydar port-call detector (AIS geofence) | |
| Arrived at MongstadAIS-detected | Voydar port-call detector (AIS geofence) | |
| Left MongstadAIS-detected | Voydar port-call detector (AIS geofence) | |
| Arrived at MongstadAIS-detected | Voydar port-call detector (AIS geofence) | |
| Inspection at Houston, Texas | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Inspection at Mobile, Alabama | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at TEXAS CITY, Texas | USCG PSIX / CGMIX inspections | |
| Port State Control inspection at TEXAS CITY, Texas | USCG PSIX / CGMIX inspections |
Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.
Safety & inspections
| Date | Type | Port | Findings |
|---|---|---|---|
| Nov 23, 2025 | Vessel Inspection | Houston, Texas | clean |
| Nov 19, 2025 | Vessel InspectionPSC | Mobile, Alabama | clean |
| Nov 27, 2024 | Vessel InspectionPSC | Mobile, Alabama | clean |
| Oct 20, 2022 | Vessel Inspection | Mobile, Alabama | clean |
| Sep 19, 2022 | Vessel InspectionPSC | Mobile, Alabama | clean |
| Sep 6, 2022 | Vessel Inspection | Mobile, Alabama | clean |
| Aug 25, 2021 | Vessel InspectionPSC | Mobile, Alabama | clean |
| Mar 10, 2021 | Vessel Inspection | Mobile, Alabama | clean |
| Oct 8, 2020 | Vessel InspectionPSC | TEXAS CITY, Texas | clean |
| Aug 28, 2019 | Vessel InspectionPSC | TEXAS CITY, Texas | clean |
| May 16, 2018 | Vessel InspectionPSC | Lewes, Delaware | clean |
| May 22, 2017 | Vessel InspectionPSC | Port Arthur, Texas | clean |
Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Voydar; the incumbents charge for this.
Emissions & fuel consumption
Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.
| Year | CO₂ emitted | Fuel burned | Time at sea | CO₂ / n mile |
|---|---|---|---|---|
| 2018 | 20,393 t | 6,493 t | 182 days | 418 kg |
| 2019 | 21,261 t | 6,724 t | 202 days | 420 kg |
| 2020 | 10,978 t | 3,471 t | 112 days | 351 kg |
| 2021 | 15,620 t | 4,929 t | 147 days | 398 kg |
| 2022 | 11,910 t | 3,780 t | 128 days | 363 kg |
| 2023 | 7,327 t | 2,325 t | 84 days | 328 kg |
| 2024 | 9,347 t | 2,961 t | 80 days | 428 kg |
| 2025 | 10,511 t | 3,332 t | 111 days | 340 kg |
Technical efficiency: EEDI (3.1 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.
Port calls
Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.
Detected from AIS AIS-detected
| Port | Arrived | Departed | Time in port |
|---|---|---|---|
| Fawley GBFAW | Sep 28, 2026, 23:36 UTC | Sep 30, 2026, 08:34 UTC | 32 h 58 min |
| Mongstad NOMON | Aug 4, 2026, 18:42 UTC | Aug 4, 2026, 19:39 UTC | 56 min |
| Mongstad NOMON | Aug 4, 2026, 16:48 UTC | Aug 4, 2026, 18:27 UTC | 1 h 38 min |
| Mongstad NOMON | Aug 4, 2026, 15:55 UTC | Aug 4, 2026, 16:47 UTC | 52 min |
| Mongstad NOMON | Aug 4, 2026, 12:56 UTC | Aug 4, 2026, 14:42 UTC | 1 h 46 min |
| Mongstad NOMON | Aug 4, 2026, 10:11 UTC | Aug 4, 2026, 12:56 UTC | 2 h 45 min |
| Mongstad NOMON | Aug 4, 2026, 08:30 UTC | Aug 4, 2026, 10:05 UTC | 1 h 35 min |
| Mongstad NOMON | Aug 3, 2026, 21:55 UTC | Aug 4, 2026, 08:13 UTC | 10 h 19 min |
| Mongstad NOMON | Jun 21, 2026, 06:59 UTC | Aug 3, 2026, 21:54 UTC | 43 d 14 h |
| Mongstad NOMON | Jun 21, 2026, 02:27 UTC | Jun 21, 2026, 06:59 UTC | 4 h 32 min |
Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.
Behaviour at sea Voydar-derived
Patterns Voydar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.
| When | What we observed | Confidence |
|---|---|---|
| Sep 30, 2026, 01:23 UTC | Draught change Reported draught went from 13.4 m to 9 m while in port at Fawley. Voydar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1 | High (75%) |
Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.
Derived from AIS positions of feeds whose terms allow display on Voydar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.
Frequently asked questions
- Where is Marathon TS now?
- Marathon TS (Oil tanker, Malta flag) was last seen on AIS on Oct 3, 2026, 09:51 UTC, under way at 4.9 kn, in the North Sea. The crew-entered destination was MONGSTAD (voyage report via BarentsWatch AIS API, received Oct 3, 2026, 09:28 UTC). This report does not confirm the ship’s current route.
- What kind of ship is Marathon TS?
- Marathon TS is an oil tanker sailing under the flag of Malta, built in 2017 by Mangalia Shipyard. The vessel is 250 m long with a beam of 44 m and has a gross tonnage of 62,557.
- Who is recorded as the owner or manager of Marathon TS?
- Tsakos Shipping & Trading S.A. is recorded as ISM manager for Marathon TS (source: EU MRV (THETIS-MRV) emissions; reporting years 2024–2025). This source record does not independently confirm today’s ownership or management.
- What sanctions and inspection records does Voydar hold for Marathon TS?
- Voydar has no matched sanctions record displayed for Marathon TS from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. Marathon TS has 12 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.
Sister ships
Likely sister ships: built by Mangalia Shipyard, same type, gross tonnage within 2.5% and length within 1.5% of this ship's.
- Agios GerasimosIMO 9693056Oil tanker · built 2015 · 62,388 GT
- Elias TsakosIMO 9724075Oil tanker · built 2016 · 62,557 GT
- Leontios HIMO 9724336Oil tanker · built 2016 · 62,557 GT
- Parthenon TSIMO 9724348Oil tanker · built 2016 · 62,557 GT
- Thomas ZafirasIMO 9724087Oil tanker · built 2016 · 62,557 GT
- Bergen TSIMO 9737400Oil tanker · built 2017 · 62,557 GT
- Minerva CoraliaIMO 9728239Oil tanker · built 2017 · 62,513 GT
- Oslo TSIMO 9737383Oil tanker · built 2017 · 62,557 GT
- Sola TSIMO 9724350Oil tanker · built 2017 · 62,557 GT
Neighbouring IMO numbers
IMO numbers are issued in sequence. These are the nearest numbers below and above this ship's that have a full Voydar profile.
Use this data
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