Where is STENA IMPERATOR now?

STENA IMPERATOR (Chemical tanker, United Kingdom flag) was last seen on AIS on Oct 4, 2026, 20:58 UTC, at anchor, near Alameda (North Pacific Ocean). The crew-entered destination was MY PKG > US RD4 (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 20:03 UTC). This report does not confirm the ship’s current route.

What kind of ship is STENA IMPERATOR?

STENA IMPERATOR is a chemical tanker sailing under the flag of United Kingdom, built in 2017 by CSSC Offshore & Marine Engineering Company. The vessel is 183 m long with a beam of 32 m and has a gross tonnage of 29,579.

Who is recorded as the owner or manager of STENA IMPERATOR?

Stena Bulk Cyprus Ltd is recorded as ISM manager for STENA IMPERATOR (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 STENA IMPERATOR?

Voydar has no matched sanctions record displayed for STENA IMPERATOR 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 STENA IMPERATOR. Missing records do not establish whether the ship has been detained.

STENA IMPERATOR

Chemical tanker · United Kingdom · built 2017 · AIS Class A

IMO9797383MMSI232007939Call signMAZS9Last AIS position Oct 4, 2026, 20:58 UTC

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In short

STENA IMPERATOR (Chemical tanker, United Kingdom flag) was last seen on AIS on Oct 4, 2026, 20:58 UTC, at anchor, near Alameda (North Pacific Ocean). Its crew-entered AIS destination is MY PKG > US RD4; its reported draught is 10.8 m (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 20:03 UTC). ISM manager: Stena Bulk Cyprus Ltd (source: EU MRV (THETIS-MRV) emissions, reporting years 2024–2025).

Vessel type: Chemical tanker
Flag: United Kingdom
Year built: 2017
Gross tonnage: 29,579
Size (length × beam): 183 m × 32 m
ISM manager: Stena Bulk Cyprus Ltd

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Last reported position

received Oct 4, 2026, 20:58 UTC

Position: 37.7303° N, 122.335° W
Area: North Pacific Ocean
StatusWhat do AIS statuses mean?: At anchor
Speed: 0.1 kn
Course: 74°
Heading: 222°

37.7303° N, 122.335° W

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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: STENA IMPERATOR
IMO numberWhat is an IMO number?: 9797383
MMSIWhat is an MMSI?: 232007939
Call signWhat is a call sign?: MAZS9
Flag: United Kingdom
Vessel type: Chemical tanker
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 29,579
Deadweight (DWT): Source: Wikidata, record Q94652402. Added to Voydar on September 23, 2026. Licence: CC0 1.0.49,690 t
Length overall: 183 m
Beam: 32 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: Stena Bulk Cyprus Ltd
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
Builder: CSSC Offshore & Marine Engineering Company
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

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	5,386 t	1,716 t	96 days	216 kg
2019	5,871 t	1,869 t	141 days	309 kg
2020	5,637 t	1,797 t	84 days	256 kg
2021	4,449 t	1,423 t	59 days	257 kg
2022	5,349 t	1,696 t	60 days	326 kg
2023	5,620 t	1,793 t	72 days	283 kg
2024	3,287 t	1,050 t	42 days	270 kg
2025	0 t	0 t	0 days	—

Technical efficiency: EEXI (4.34 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Frequently asked questions

Where is STENA IMPERATOR now?: STENA IMPERATOR (Chemical tanker, United Kingdom flag) was last seen on AIS on Oct 4, 2026, 20:58 UTC, at anchor, near Alameda (North Pacific Ocean). The crew-entered destination was MY PKG > US RD4 (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 20:03 UTC). This report does not confirm the ship’s current route.
What kind of ship is STENA IMPERATOR?: STENA IMPERATOR is a chemical tanker sailing under the flag of United Kingdom, built in 2017 by CSSC Offshore & Marine Engineering Company. The vessel is 183 m long with a beam of 32 m and has a gross tonnage of 29,579.
Who is recorded as the owner or manager of STENA IMPERATOR?: Stena Bulk Cyprus Ltd is recorded as ISM manager for STENA IMPERATOR (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 STENA IMPERATOR?: Voydar has no matched sanctions record displayed for STENA IMPERATOR 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 STENA IMPERATOR. Missing records do not establish whether the ship has been detained.

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