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Seaways Yellowstone

Oil tanker · Marshall Islands · built 2009 · AIS Class A

IMO9394947MMSI538003322Call signV7QA4Last AIS position Sep 17, 2026, 23:28 UTC

In short

Seaways Yellowstone (Oil tanker, Marshall Islands flag) was last seen on AIS on , under way at 14.5 kn, in the Indian Ocean. Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. ISM manager: AIPOS SHIPPING CORPORATION (source: EU MRV (THETIS-MRV) emissions, reporting year 2025).

Vessel type
Oil tanker
Year built
2009
Gross tonnage
62,775
Size (length × beam)
250 m × 44 m

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Photo of SEAWAYS YELLOWSTONE
Photo: Pjotr Mahhonin · Licence: CC BY-SA 4.0 · via Wikimedia Commons

Last reported position

received
Position
38.2586° S, 144.8953° E
Area
Indian Ocean
StatusWhat do AIS statuses mean?
Under way using engine
Speed
14.5 kn
Course
164°
Heading
164°
38.2586° S, 144.8953° E
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Seadar detected no port call in the last 30 days.

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

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Identity & particulars

Name
Seaways Yellowstone
IMO numberWhat is an IMO number?
9394947
MMSIWhat is an MMSI?
538003322
Call signWhat is a call sign?
V7QA4
AIS ship type
Tanker (hazardous cat. D)
Gross tonnageGross tonnage vs deadweight
62,775
Length overall
250 m
Beam
44 m
Year built
2009

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
Source: EU MRV (THETIS-MRV) emissions · reporting year 2025 · reported · confidence 0.9 · retrieved Sep 28, 2026

Timeline

Dated events for this ship from every source Seadar holds, newest first. Each line names its source; derived items say how they were derived.

DateEventSource
Reported departure from Lake CharlesAuthority-reportedUSACE foreign traffic vessel entrances & clearances
Reported arrival at Lake CharlesAuthority-reportedUSACE foreign traffic vessel entrances & clearances
Reported departure from FreeportAuthority-reportedUSACE 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.

YearCO₂ emittedFuel burnedTime at seaCO₂ / n mile
201825,920 t8,241 t205 days617 kg
20199,584 t3,056 t91 days475 kg
20203,176 t1,004 t24 days481 kg
202119,941 t6,304 t156 days454 kg
20228,844 t2,820 t57 days500 kg
202311,644 t3,704 t94 days464 kg
20250 t0 t0 days—

Technical efficiency: EEXI (3.33 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 Seadar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Reported by authorities Authority-reported

PortRecordDate (UTC)BerthSource
Lake Charles USLCHDepartureApr 9, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Lake Charles USLCHArrivalApr 8, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Freeport USFPODepartureMar 27, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Freeport USFPOArrivalMar 27, 2016(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)DepartureMar 11, 2016(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)ArrivalFeb 29, 2016(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)DepartureMar 20, 2015(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)ArrivalMar 15, 2015(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)DepartureNov 6, 2014(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)ArrivalNov 4, 2014(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)DepartureJul 4, 2014(date only)—USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)ArrivalJun 27, 2014(date only)—USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: March 4, 2009.

Frequently asked questions

Where is Seaways Yellowstone now?
Seaways Yellowstone (Oil tanker, Marshall Islands flag) was last seen on AIS on Sep 17, 2026, 23:28 UTC, under way at 14.5 kn, in the Indian Ocean. Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is Seaways Yellowstone?
Seaways Yellowstone is an oil tanker sailing under the flag of Marshall Islands, built in 2009. The vessel is 250 m long with a beam of 44 m and has a gross tonnage of 62,775.
Who is recorded as the owner or manager of Seaways Yellowstone?
AIPOS SHIPPING CORPORATION is recorded as ISM manager for Seaways Yellowstone (source: EU MRV (THETIS-MRV) emissions; reporting year 2025). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Seadar hold for Seaways Yellowstone?
Seadar has no matched sanctions record displayed for Seaways Yellowstone 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 Seaways Yellowstone. Missing records do not establish whether the ship has been detained.

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