What kind of ship is Seaways Montauk?

Seaways Montauk is an oil tanker sailing under the flag of Marshall Islands, built in 2017 by HD Hyundai Samho. The vessel is 274 m long with a beam of 48 m and has a gross tonnage of 81,433.

Who is recorded as the owner or manager of Seaways Montauk?

MONTAUK TANKER CORP is recorded as ISM manager for Seaways Montauk (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 Seaways Montauk?

Voydar has no matched sanctions record displayed for Seaways Montauk 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. No matched inspection records are displayed for Seaways Montauk. Missing records do not establish whether the ship has been detained.

Seaways Montauk

Oil tanker · Marshall Islands · built 2017 · AIS Class A

IMO9779537MMSI538007598Call signV7WB3Last AIS position Oct 5, 2026, 20:21 UTC

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In short

Seaways Montauk (Oil tanker, Marshall Islands flag) was last seen on AIS on Oct 5, 2026, 20:21 UTC, under way at 13.2 kn, in the Caribbean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is BRMDD (Madre de Deus); its reported draught is 11.6 m (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 19:47 UTC). ISM manager: MONTAUK TANKER CORP (source: EU MRV (THETIS-MRV) emissions, reporting years 2024–2025).

Current voyage: from Corpus Christi (departed Sep 30, 2026, 14:09 UTC) to BRMDD (Madre de Deus)

Vessel type: Oil tanker
Flag: Marshall Islands
Year built: 2017
Gross tonnage: 81,433
Size (length × beam): 274 m × 48 m
ISM manager: MONTAUK TANKER CORP

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Last reported position

received Oct 5, 2026, 20:21 UTC

Position: 20.0384° N, 70.6961° W
Area: Caribbean Sea
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 13.2 kn
Course: 101°
Heading: 100°

20.0384° N, 70.6961° W

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Last 30 days: 1 port call (Corpus Christi).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: Seaways Montauk
IMO numberWhat is an IMO number?: 9779537
MMSIWhat is an MMSI?: 538007598
Call signWhat is a call sign?: V7WB3
Flag: Marshall Islands
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsOil tanker
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 81,433
Deadweight (DWT): Source: Wikidata, record Q104377716. Added to Voydar on September 23, 2026. Licence: CC0 1.0.158,432 t
Length overall: 274 m
Beam: 48 m
Year built: 2017

A 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: MONTAUK TANKER CORP
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Oct 5, 2026
Builder: HD Hyundai Samho
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
Sep 30, 2026, 14:09 UTC	Left Corpus ChristiAIS-detected	Voydar port-call detector (AIS geofence)
Sep 28, 2026, 12:58 UTC	Arrived at Corpus ChristiAIS-detected	Voydar port-call detector (AIS geofence)

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.

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	10,653 t	3,404 t	122 days	373 kg
2019	19,578 t	6,262 t	176 days	441 kg
2020	10,758 t	3,441 t	117 days	346 kg
2022	12,158 t	3,874 t	93 days	452 kg
2023	12,729 t	4,074 t	124 days	368 kg
2024	23,752 t	7,586 t	212 days	401 kg
2025	3,332 t	1,065 t	33 days	374 kg

Technical efficiency: EEDI (2.87 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
Corpus Christi USCRP	Sep 28, 2026, 12:58 UTC	Sep 30, 2026, 14:09 UTC	2 d 1 h

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, 09:54 UTC	Draught change Reported draught went from 10 m to 11.6 m while in port at Corpus Christi. Voydar infers the ship probably loaded cargo. Method seadar.behaviour.draught_change v1	Medium (65%)

When

What we observed

Confidence

Sep 30, 2026, 09:54 UTC

Draught change

Reported draught went from 10 m to 11.6 m while in port at Corpus Christi. Voydar infers the ship probably loaded cargo.

Method seadar.behaviour.draught_change v1

Medium (65%)

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.

How these are computed →

Frequently asked questions

Where is Seaways Montauk now?: Seaways Montauk (Oil tanker, Marshall Islands flag) was last seen on AIS on Oct 5, 2026, 20:21 UTC, under way at 13.2 kn, in the Caribbean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was BRMDD (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 19:47 UTC). This report does not confirm the ship’s current route.
What kind of ship is Seaways Montauk?: Seaways Montauk is an oil tanker sailing under the flag of Marshall Islands, built in 2017 by HD Hyundai Samho. The vessel is 274 m long with a beam of 48 m and has a gross tonnage of 81,433.
Who is recorded as the owner or manager of Seaways Montauk?: MONTAUK TANKER CORP is recorded as ISM manager for Seaways Montauk (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 Seaways Montauk?: Voydar has no matched sanctions record displayed for Seaways Montauk 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. No matched inspection records are displayed for Seaways Montauk. Missing records do not establish whether the ship has been detained.

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