Other ship types (Offshore) · Luxembourg flag · built 2010
KARIMU: CO₂ emissions 2018–2025
IMO 9464792 EU ETS3 reporting years
- CO₂ reported 2025
- 4,079 t
- Fuel burned
- 1,272 t
- Time at sea
- 1,003 h
- Emitted at berth
- 23% of total
- Share of year under way
- 11%
- Gross tonnage
- 33,338
KARIMU against its type
Built in 2010, it is 1 year older than the median offshore vessel on this register, which was built in 2011 (410 vessels with a known build year). At 33,338 gross tonnage it is larger than 96% of the other 396 offshore vessels with a recorded tonnage. It is one of 22 offshore vessels here under the Luxembourg flag, 5.3% of the 413 on the register. Its MRV returns name it KARIMU for 2018–2021 and YELLOWSTONE for 2025. The reported port of registry changed: LIMASSOL (2021), then Luxembourg (2025).
Its 4,079 t of CO₂ for 2025 is close to the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 740.3 kg CO₂, 2.1 times the type median of 348.3 kg. It logged 1,003 hours at sea against a median of 3,550 hours for its type that year. 22.6% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. Across 3 years with reported emissions, the highest was 2021 (6,237 t) and the lowest 2018 (1,520 t). Of the 8 comparable vessels listed below with a 2025 return, 0 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 | 4,079 | 1,272 | — | 1,003 | 920 | 740.3 | — | — |
| 2021 | 6,237 | 1,985 | 18,983 | 1,891 | 206 | 328.6 | 6.7 | 27 |
| 2018 | 1,520 | 486 | — | 377 | < 1 | 353.6 | — | — |
Vessel particulars
- IMO number
- 9464792
- Previously reported as
- YELLOWSTONE
- Ship type
- Other ship types (Offshore)
- Gross tonnage
- 33,338
- Length overall
- 189.9 m
- Beam
- 32.3 m
- Year built
- 2010
- Flag state
- Luxembourg per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Cyprus. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Luxembourg MRV 2025
- Home port
- Luxembourg
- Technical efficiency (design)
- EIV (5.65 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-07-24
- Compliance document expires
- 2027-06-30
Efficiency against its own type2021
Position 888 of 3,276 qualifying bulk carriers by EEOI, at the 27th percentile. The dashed line is the type median, 8.4; this vessel reported 6.7.
EEOI divides emissions by transport work, which for this vessel and year was 928,113,095 tonne-miles over 18,983 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 168.4% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, 2022, 2023, 2024, so the series has gaps.
From 2021 to 2025, emissions fell 34.6% and CO₂ per nautical mile rose 125.3%.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
- 4,142 t
- Methane (CH₄)
- 0.06 t
- Nitrous oxide (N₂O)
- 0.23 t
- Under EU ETS
- 3,385 t, 83% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2021 | NORMEC VERIFAVIA SAS | France |
| 2025 | 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 3 MRV reporting years, an efficiency ranking, 4 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.