TWERK (Oil tanker, Liberia flag) was last seen on AIS on Oct 1, 2026, 09:23 UTC, under way at 6.5 kn, near Ambarli (Sea of Marmara). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was TUZLA TURKEY (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 09:02 UTC). This report does not confirm the ship’s current route.

What kind of ship is TWERK?

TWERK is an oil tanker sailing under the flag of Liberia, built in 2008 by Sungdong Shipbuilding & Marine Engineering. The vessel is 228 m long and has a gross tonnage of 41,696.

Who is recorded as the owner or manager of TWERK?

SPRING MARINE MANAGEMENT S.A. is recorded as ISM manager for TWERK (source: EU MRV (THETIS-MRV) emissions; reporting year 2024). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for TWERK?

Voydar has no matched sanctions record displayed for TWERK from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for TWERK. Missing records do not establish whether the ship has been detained.

TWERK

Oil tanker · Liberia · built 2008 · AIS Class A

IMO9379961MMSI636013411Call signA8MS7Last AIS position Oct 1, 2026, 09:23 UTC

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In short

TWERK (Oil tanker, Liberia flag) was last seen on AIS on Oct 1, 2026, 09:23 UTC, under way at 6.5 kn, near Ambarli (Sea of Marmara). 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 TUZLA TURKEY; its reported draught is 8 m (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 09:02 UTC). ISM manager: SPRING MARINE MANAGEMENT S.A. (source: EU MRV (THETIS-MRV) emissions, reporting year 2024).

Vessel type: Oil tanker
Flag: Liberia
Year built: 2008
Gross tonnage: 41,696
Size (length × beam): 228 m
ISM manager: SPRING MARINE MANAGEMENT S.A.

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Last reported position

received Oct 1, 2026, 09:23 UTC

Position: 40.9429° N, 28.7781° E
Area: Sea of Marmara
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 6.5 kn
Course: 115°
Heading: 132°

40.9429° N, 28.7781° E

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Voydar detected no port call in the last 30 days.

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: TWERK
IMO numberWhat is an IMO number?: 9379961
MMSIWhat is an MMSI?: 636013411
Call signWhat is a call sign?: A8MS7
Flag: Liberia
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsOil tanker
Gross tonnageGross tonnage vs deadweight: 41,696
Length overall: 228 m
Beam: —
Year built: 2008

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: SPRING MARINE MANAGEMENT S.A.
Source: EU MRV (THETIS-MRV) emissions · reporting year 2024 · reported · confidence 0.9 · retrieved Sep 28, 2026
Builder: Sungdong Shipbuilding & Marine Engineering
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
Dec 25, 2015	Reported departure from HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Dec 25, 2015	Reported arrival at HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Nov 26, 2015	Reported departure from Corpus ChristiAuthority-reported	USACE foreign traffic vessel entrances & clearances

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
2019	12,268 t	3,911 t	115 days	399 kg
2020	2,988 t	943 t	23 days	441 kg
2023	6,754 t	2,154 t	49 days	435 kg
2024	3,595 t	1,149 t	46 days	351 kg

Technical efficiency: EEXI (4.09 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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Dec 25, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Dec 25, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Nov 26, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Arrival	Nov 26, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Oct 23, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Oct 13, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	May 13, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	May 13, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	May 7, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Arrival	May 5, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Mar 8, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Mar 7, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: November 14, 2009.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Frequently asked questions

Where is TWERK now?: TWERK (Oil tanker, Liberia flag) was last seen on AIS on Oct 1, 2026, 09:23 UTC, under way at 6.5 kn, near Ambarli (Sea of Marmara). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was TUZLA TURKEY (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 09:02 UTC). This report does not confirm the ship’s current route.
What kind of ship is TWERK?: TWERK is an oil tanker sailing under the flag of Liberia, built in 2008 by Sungdong Shipbuilding & Marine Engineering. The vessel is 228 m long and has a gross tonnage of 41,696.
Who is recorded as the owner or manager of TWERK?: SPRING MARINE MANAGEMENT S.A. is recorded as ISM manager for TWERK (source: EU MRV (THETIS-MRV) emissions; reporting year 2024). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for TWERK?: Voydar has no matched sanctions record displayed for TWERK from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for TWERK. Missing records do not establish whether the ship has been detained.

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