Oil tanker · Liberia flag · built 2006
ASSOS: CO₂ emissions 2018–2025
IMO 9327449 EU ETS7 reporting years
- CO₂ reported 2025
- 14,983 t
- Fuel burned
- 4,772 t
- Distance
- 45,556 nm
- Time at sea
- 3,902 h
- Emitted at berth
- 7% of total
- Share of year under way
- 45%
- Gross tonnage
- 27,916
ASSOS against its type
Built in 2006, it is 4 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 27,916 gross tonnage it is smaller than 85% 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. The same builder is recorded for 983 other vessels here, 270 of them oil tankers. Its MRV returns name it ASSOS for 2018–2020, RIDGEBURY GALILEO for 2021–2022 and FAIR WONDER for 2023–2025. The returns for 2021–2025 all give MONROVIA as port of registry.
Its 14,983 t of CO₂ for 2025 is 1.9 times the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 328.9 kg CO₂, 18% below the type median of 403.2 kg. It logged 3,902 hours at sea against a median of 2,030 hours for its type that year. 7.2% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2025 (14,983 t) and the lowest 2023 (1,401 t). Its efficiency percentile within the type went from 16 in 2018 to 89 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a lower CO₂ per nautical mile.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 14,983 | 4,772 | 45,556 | 3,902 | 1,072 | 328.9 | 17.4 | 89 |
| 2024 | 5,077 | 1,615 | 16,902 | 1,427 | 512 | 300.4 | 18.5 | 60 |
| 2023 | 1,401 | 440 | 3,936 | 346 | 214 | 356.0 | 10.3 | 19 |
| 2022 | 4,743 | 1,489 | 13,884 | 1,343 | 838 | 341.7 | 15.6 | 87 |
| 2021 | 11,597 | 3,636 | 23,180 | 1,992 | 3,919 | 500.3 | 25.8 | 96 |
| 2020 | 5,147 | 1,627 | 15,275 | 1,398 | 567 | 336.9 | 48.5 | 96 |
| 2018 | 2,870 | 918 | 6,790 | 563 | 97 | 422.7 | 10.4 | 16 |
Vessel particulars
- IMO number
- 9327449
- Previously reported as
- RIDGEBURY GALILEO, FAIR WONDER
- Ship type
- Oil tanker
- Gross tonnage
- 27,916
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2006
- Flag state
- Liberia per EU MRV 2025
- Builder
- HD Hyundai Mipo
- Port of registry
- Monrovia MRV 2025
- Ice class
- IA Super
- Technical efficiency (design)
- EIV (8.07 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,292 of 1,448 qualifying oil tankers by EEOI, at the 89th percentile. The dashed line is the type median, 7.5; this vessel reported 17.4.
EEOI divides emissions by transport work, which for this vessel and year was 861,565,842 tonne-miles over 45,556 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 422.0% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, so the series has gaps.
From 2024 to 2025, emissions rose 195.1% while distance sailed rose 169.5%and CO₂ per nautical mile rose 9.5%.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
- 15,217 t
- Methane (CH₄)
- 0.24 t
- Nitrous oxide (N₂O)
- 0.86 t
- Under EU ETS
- 9,441 t, 63% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 2021 | Nippon Kaiji Kyokai | Japan |
| 2022 | DNV | Germany |
| 2024 | NORMEC VERIFAVIA SAS | France |
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 7 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.