STI Duchessa
Oil tanker · Marshall Islands · built 2014 · AIS Class A
In short
STI Duchessa (Oil tanker, Marshall Islands flag) was last seen on AIS on , moored, near Fremantle (Indian Ocean). Its crew-entered AIS destination is KWINANA; its reported draught is 11.8 m (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 14:51 UTC). ISM manager: STI Duchessa Shipping Company Limited (source: EU MRV (THETIS-MRV) emissions, reporting years 2024–2025).
- Vessel type
- Oil tanker
- Flag
- Marshall Islands
- Year built
- 2014
- Gross tonnage
- 29,785
- Size (length × beam)
- 183 m
- ISM manager
- STI Duchessa Shipping Company Limited
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Last reported position
received- Position
- 32.229° S, 115.754° E
- Area
- Indian Ocean
- StatusWhat do AIS statuses mean?
- Moored
- Speed
- 0 kn
- Course
- 328°
- Heading
- 167°
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.
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
- STI Duchessa
- IMO numberWhat is an IMO number?
- 9669938
- MMSIWhat is an MMSI?
- 538005225
- Call signWhat is a call sign?
- V7CA3
- Flag
- Marshall Islands
- AIS ship type
- Tanker
- Gross tonnageGross tonnage vs deadweight
- 29,785
- Length overall
- 183 m
- Beam
- —
- Year built
- 2014
Marshall IslandsA 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
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 |
|---|---|---|
| Reported departure from Hong KongAuthority-reported | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) | |
| Reported arrival at Hong KongAuthority-reported | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) | |
| Reported departure from Hong KongAuthority-reported | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) | |
| Reported arrival at Hong KongAuthority-reported | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) | |
| Reported departure from HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-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 |
|---|---|---|---|---|
| 2018 | 1,766 t | 567 t | 25 days | 228 kg |
| 2019 | 3,817 t | 1,219 t | 51 days | 261 kg |
| 2020 | 9,085 t | 2,892 t | 197 days | 256 kg |
| 2021 | 6,695 t | 2,132 t | 101 days | 243 kg |
| 2022 | 2,670 t | 854 t | 40 days | 304 kg |
| 2023 | 14,496 t | 4,638 t | 225 days | 279 kg |
| 2024 | 11,110 t | 3,538 t | 142 days | 292 kg |
| 2025 | 2,865 t | 909 t | 38 days | 263 kg |
Technical efficiency: EEXI (4.57 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 |
|---|---|---|---|---|
| Hong Kong HKHKG | Arrival | Oct 1, 2022, 16:12 UTC | SLA | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) |
| Hong Kong HKHKG | Arrival(matched by call sign) | Aug 22, 2018, 16:15 UTC | PT | Hong Kong vessel arrivals & departures (incl. VTMS daily reports) |
| HOUSTON SHIP CHANNEL, TX (HOUSTON, TX) | Departure | Dec 30, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| HOUSTON SHIP CHANNEL, TX (HOUSTON, TX) | Arrival | Dec 29, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Arthur USPOA | Departure | Dec 15, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Arthur USPOA | Arrival | Dec 14, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Arthur USPOA | Departure | Dec 1, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Arthur USPOA | Arrival | Nov 30, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Tampa USTPA | Arrival | Nov 25, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Tampa USTPA | Departure | Nov 25, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Everglades USPEF | Departure | Nov 21, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
| Port Everglades USPEF | Arrival | Nov 20, 2016(date only) | — | USACE foreign traffic vessel entrances & clearances |
Records published by the authority named on each row. Earliest record for this ship: May 21, 2014.
Source: Marine Department, HKSAR Government — DATA.GOV.HK. Licence: DATA.GOV.HK Terms and Conditions.
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 STI Duchessa now?
- STI Duchessa (Oil tanker, Marshall Islands flag) was last seen on AIS on Oct 4, 2026, 17:57 UTC, moored, near Fremantle (Indian Ocean). The crew-entered destination was KWINANA (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 14:51 UTC). This report does not confirm the ship’s current route.
- What kind of ship is STI Duchessa?
- STI Duchessa is an oil tanker sailing under the flag of Marshall Islands, built in 2014. The vessel is 183 m long and has a gross tonnage of 29,785.
- Who is recorded as the owner or manager of STI Duchessa?
- STI Duchessa Shipping Company Limited is recorded as ISM manager for STI Duchessa (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 STI Duchessa?
- Voydar has no matched sanctions record displayed for STI Duchessa 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 STI Duchessa. Missing records do not establish whether the ship has been detained.
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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