Oil tanker · Liberia flag · built 2008
SEAWAYS OAK: CO₂ emissions 2018–2025
IMO 9410014 EU ETS3 reporting years
- CO₂ reported 2025
- 1,074 t
- Fuel burned
- 339 t
- Time at sea
- 307 h
- Emitted at berth
- 9% of total
- Share of year under way
- 4%
- Gross tonnage
- 30,010
SEAWAYS OAK against its type
Built in 2008, it is 2 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 30,010 gross tonnage it is smaller than 72% of the other 2,841 oil tankers with a recorded tonnage. It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. Its MRV returns name it AYRTON II for 2018–2019 and SEAWAYS OAK for 2025.
Its 1,074 t of CO₂ for 2025 is 86% below the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 290.1 kg CO₂, 28% below the type median of 403.2 kg. It logged 307 hours at sea against a median of 2,030 hours for its type that year. 9.2% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 3 years with reported emissions, the highest was 2019 (5,752 t) and the lowest 2025 (1,074 t). Its efficiency percentile within the type went from 25 in 2018 to 26 in 2019 (lower is more efficient). Of the 4 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 1,074 | 339 | — | 307 | 99 | 290.1 | 9.1 | not ranked |
| 2019 | 5,752 | 1,840 | 15,204 | 1,248 | 425 | 378.3 | 12.1 | 26 |
| 2018 | 4,408 | 1,407 | 12,326 | 1,038 | 231 | 357.6 | 11.6 | 25 |
Vessel particulars
- IMO number
- 9410014
- Previously reported as
- AYRTON II
- Ship type
- Oil tanker
- Gross tonnage
- 30,010
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2008
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (4.9 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-05
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 75.6% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, 2023, 2024, so the series has gaps.
From 2019 to 2025, emissions fell 81.3% and CO₂ per nautical mile fell 23.3%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,091 t
- Methane (CH₄)
- 0.02 t
- Nitrous oxide (N₂O)
- 0.06 t
- Under EU ETS
- 586 t, 55% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2019 | HELLENIC LLOYD'S S.A. | Greece |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 3 MRV reporting years, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.