Oil tanker · Marshall Islands flag
SEAWAYS YOSEMITE: CO₂ emissions 2018–2025
IMO 9394959 7 reporting years
- CO₂ reported 2023
- 11,346 t
- Fuel burned
- 3,604 t
- Distance
- 20,391 nm
- Time at sea
- 2,151 h
- Emitted at berth
- 19% of total
- Share of year under way
- 25%
SEAWAYS YOSEMITE against its type
It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The returns for 2018–2023 all give Majuro as port of registry.
Its 11,346 t of CO₂ for 2023 is 1.5 times the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 556.4 kg CO₂, 36% above the type median of 408.5 kg. It logged 2,151 hours at sea against a median of 1,807 hours for its type that year. 19.4% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 6 years with reported emissions, the highest was 2022 (18,868 t) and the lowest 2021 (3,713 t). Its efficiency percentile within the type went from 40 in 2018 to 45 in 2023 (lower is more efficient). The one comparable vessel listed below with a 2023 return reported a lower CO₂ per nautical mile.
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2023 | 11,346 | 3,604 | 20,391 | 2,151 | 2,199 | 556.4 | 7.5 | 45 |
| 2022 | 18,868 | 6,008 | 35,316 | 3,216 | 1,580 | 534.3 | 10.1 | 68 |
| 2021 | 3,713 | 1,178 | 8,369 | 757 | 224 | 443.6 | 5.7 | 22 |
| 2020 | 12,010 | 3,826 | 27,589 | 2,622 | 838 | 435.3 | 8.1 | 45 |
| 2019 | 16,144 | 5,145 | 31,492 | 3,354 | 2,765 | 512.6 | 9.1 | 56 |
| 2018 | 15,218 | 4,832 | 29,169 | 3,464 | 1,528 | 521.7 | 7.5 | 40 |
Vessel particulars
- IMO number
- 9394959
- Ship type
- Oil tanker
- Length overall
- 250.0 m
- Beam
- 44.0 m
- Flag state
- Marshall Islands Wikidata/AIS, undated
- Port of registry
- Majuro MRV 2023
- Technical efficiency (design)
- EEXI (4.04 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2024-04-30
- Compliance document expires
- 2025-06-30
Efficiency against its own type2023
Position 734 of 1,615 qualifying oil tankers by EEOI, at the 45th percentile. The dashed line is the type median, 8.0; this vessel reported 7.5.
EEOI divides emissions by transport work, which for this vessel and year was 1,520,965,148 tonne-miles over 20,391 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2023 was 25.4% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2022 to 2023, emissions fell 39.9% while distance sailed fell 42.3%and CO₂ per nautical mile rose 4.2%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2023 emissions occurred
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | 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.
This page draws on 7 MRV reporting years, an efficiency ranking and 2 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.