What kind of ship is Overseas Santorini?

Overseas Santorini is an oil tanker sailing under the flag of United States, built in 2010 by HD Hyundai Mipo. The vessel is 183.3 m long with a beam of 32.2 m and has a gross tonnage of 29,433.

What sanctions and inspection records does Voydar hold for Overseas Santorini?

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

Overseas Santorini

Oil tanker · United States · built 2010 · AIS Class A

IMO9435909MMSI303270000Call signWOSILast AIS position Jul 26, 2026, 23:04 UTC

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In short

Overseas Santorini (Oil tanker, United States flag) was last seen on AIS on Jul 26, 2026, 23:04 UTC, under way at 11.7 kn, in the Indian Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Managing owner (USCG): SANTORINI TANKER LLC (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)).

Vessel type: Oil tanker
Flag: United States
Year built: 2010
Gross tonnage: 29,433
Size (length × beam): 183 m × 32 m
Managing owner (USCG): SANTORINI TANKER LLC

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Last reported position

received Jul 26, 2026, 23:04 UTC

Position: 29.7485° S, 31.3846° E
Area: Indian Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 11.7 kn
Course: 77°
Heading: 75°

29.7485° S, 31.3846° 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: Overseas Santorini
IMO numberWhat is an IMO number?: 9435909
MMSIWhat is an MMSI?: 303270000
Call signWhat is a call sign?: WOSI
Flag: United States
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsOil tanker
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 29,433
Deadweight (DWT): Source: Wikidata, record Q105767621. Added to Voydar on September 23, 2026. Licence: CC0 1.0.51,662 t
Length overall: 183.3 m
Beam: 32.2 m
Year built: 2010

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.

Managing owner (USCG): SANTORINI TANKER LLC(not linked to a company record)
Source: US Coast Guard — Merchant Vessels of the United States (documented vessels) · reported · confidence 0.9 · retrieved Oct 6, 2026Coast Guard documentation record (2026-09 file) matched to this ship by IMO number and call sign. The managing owner is the company the Coast Guard has on record for the ship's certificate of documentation.
ISM manager: OSG Ship Management Inc
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Oct 5, 2026
Ship radio licensee (FCC): Overseas Santorini(not linked to a company record)
Source: FCC Universal Licensing System — ship station licences · since 2022 · reported · confidence 0.9 · retrieved Oct 6, 2026Licence matched to this ship by MMSI and call sign. The licensee holds the radio licence; it is not necessarily the owner.
Builder: HD Hyundai Mipo
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
Oct 23, 2016	Reported arrival at Corpus ChristiAuthority-reported	USACE foreign traffic vessel entrances & clearances
Oct 23, 2016	Reported departure from Corpus ChristiAuthority-reported	USACE foreign traffic vessel entrances & clearances
Aug 29, 2016	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
2018	9,549 t	3,053 t	205 days	376 kg
2019	9,919 t	3,168 t	145 days	377 kg
2020	5,485 t	1,754 t	57 days	333 kg
2021	10,559 t	3,372 t	122 days	311 kg
2022	13,251 t	4,226 t	136 days	317 kg
2023	2,188 t	697 t	70 days	302 kg
2024	2,015 t	637 t	19 days	320 kg
2025	5,393 t	1,682 t	51 days	332 kg

Technical efficiency: EIV (5.37 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
Corpus Christi USCRP	Arrival	Oct 23, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Oct 23, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Aug 29, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Guayanilla PRGUY	Departure	Aug 13, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Guayanilla PRGUY	Arrival	Aug 11, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	May 6, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Arrival	May 3, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Mar 16, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Arrival	Mar 13, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Jan 22, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Arrival	Jan 21, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Dec 2, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: August 10, 2010.

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 Overseas Santorini now?: Overseas Santorini (Oil tanker, United States flag) was last seen on AIS on Jul 26, 2026, 23:04 UTC, under way at 11.7 kn, in the Indian Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is Overseas Santorini?: Overseas Santorini is an oil tanker sailing under the flag of United States, built in 2010 by HD Hyundai Mipo. The vessel is 183.3 m long with a beam of 32.2 m and has a gross tonnage of 29,433.
Who is recorded as the owner or manager of Overseas Santorini?: SANTORINI TANKER LLC is recorded as Managing owner (USCG) for Overseas Santorini (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for Overseas Santorini?: Voydar has no matched sanctions record displayed for Overseas Santorini 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 Overseas Santorini. Missing records do not establish whether the ship has been detained.

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