Oil tanker · Marshall Islands flag · built 2020
AYSE C: CO₂ emissions 2021–2025
IMO 9874258 EU ETS4 reporting years
- CO₂ reported 2025
- 3,956 t
- Fuel burned
- 1,263 t
- Distance
- 9,160 nm
- Time at sea
- 793 h
- Emitted at berth
- 9% of total
- Share of year under way
- 9%
- Gross tonnage
- 81,466
AYSE C against its type
Built in 2020, it is 10 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 81,466 gross tonnage it is larger than 76% of the other 2,841 oil tankers with a recorded tonnage. It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The same builder is recorded for 761 other vessels here, 193 of them oil tankers. Its MRV returns name it AYSE C for 2021 and SFL FRASER for 2022–2025. The reported port of registry changed: VALLETTA (2021), then Majuro (2022–2025).
Its 3,956 t of CO₂ for 2025 is 50% 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 431.9 kg CO₂, close to the type median of 403.2 kg. It logged 793 hours at sea against a median of 2,030 hours for its type that year. 8.6% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2022 (12,038 t) and the lowest 2025 (3,956 t). Its efficiency percentile within the type went from 5 in 2021 to 49 in 2025 (lower is more efficient). Of the 7 sister ships listed below with a 2025 return, 7 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2021–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 3,956 | 1,263 | 9,160 | 793 | 339 | 431.9 | 7.4 | 49 |
| 2024 | 6,451 | 2,064 | 16,322 | 1,324 | 264 | 395.3 | 10.5 | 76 |
| 2022 | 12,038 | 3,842 | 22,170 | 2,152 | 3,056 | 543.0 | 6.9 | 37 |
| 2021 | 9,374 | 2,996 | 19,430 | 3,630 | 824 | 482.5 | 4.0 | 5 |
Vessel particulars
- IMO number
- 9874258
- Previously reported as
- SFL FRASER
- Ship type
- Oil tanker
- Gross tonnage
- 81,466
- Length overall
- 274.0 m
- Beam
- 48.0 m
- Year built
- 2020
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- HD Hyundai Heavy Industries
- Port of registry
- Majuro MRV 2025
- Home port
- Majuro
- Technical efficiency (design)
- EEXI (2.7 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-01-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 709 of 1,448 qualifying oil tankers by EEOI, at the 49th percentile. The dashed line is the type median, 7.5; this vessel reported 7.4.
EEOI divides emissions by transport work, which for this vessel and year was 537,527,174 tonne-miles over 9,160 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 57.8% lower than in 2021, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2024 to 2025, emissions fell 38.7% while distance sailed fell 43.9%and CO₂ per nautical mile rose 9.3%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,018 t
- Methane (CH₄)
- 0.06 t
- Nitrous oxide (N₂O)
- 0.23 t
- Under EU ETS
- 2,148 t, 54% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2021 | Bureau Veritas Certification France | France |
| 2022 | DNV | Germany |
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 2021–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: 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.