Oil tanker · Marshall Islands flag · built 2009
DAS: CO₂ emissions 2018–2025
IMO 9439802 EU ETS7 reporting years
- CO₂ reported 2025
- 6,279 t
- Fuel burned
- 1,995 t
- Distance
- 22,694 nm
- Time at sea
- 1,895 h
- Emitted at berth
- 3% of total
- Share of year under way
- 22%
- Gross tonnage
- 29,905
DAS against its type
Built in 2009, it is 1 year older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 29,905 gross tonnage it is smaller than 73% 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 180 other vessels here, 51 of them oil tankers. V-Ships is linked to 16 vessels on this register. Its MRV returns name it RIDGEBURY ROSEMARY E for 2018–2021 and DAS for 2023–2025. The returns for 2018–2025 all give Majuro as port of registry.
Its 6,279 t of CO₂ for 2025 is 21% 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 276.7 kg CO₂, 31% below the type median of 403.2 kg. It logged 1,895 hours at sea against a median of 2,030 hours for its type that year. 3.4% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2021 (6,579 t) and the lowest 2023 (1,066 t). Its efficiency percentile within the type went from 15 in 2018 to 53 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 1 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 | 6,279 | 1,995 | 22,694 | 1,895 | 214 | 276.7 | 7.7 | 53 |
| 2024 | 1,962 | 619 | — | 562 | 0 | 318.9 | 19.8 | not ranked |
| 2023 | 1,066 | 337 | — | 154 | 26 | 870.4 | 990.5 | not ranked |
| 2021 | 6,579 | 2,080 | 23,119 | 1,798 | 794 | 284.6 | 9.2 | 57 |
| 2020 | 5,214 | 1,661 | 20,067 | 1,560 | 485 | 259.8 | 9.0 | 53 |
| 2019 | 1,744 | 555 | — | 438 | 26 | 289.4 | 13.4 | not ranked |
| 2018 | 5,023 | 1,595 | 17,725 | 1,917 | 457 | 283.4 | 10.1 | 15 |
Vessel particulars
- IMO number
- 9439802
- Previously reported as
- RIDGEBURY ROSEMARY E
- Ship type
- Oil tanker
- Gross tonnage
- 29,905
- Length overall
- 183.0 m
- Beam
- 32.2 m
- Year built
- 2009
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- SPP Shipbuilding Co., Ltd.
- Port of registry
- Majuro MRV 2025
- Home port
- Majuro
- Technical efficiency (design)
- EIV (6.68 gCO₂/t·nm)
- Operator
- V-Ships
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-30
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 765 of 1,448 qualifying oil tankers by EEOI, at the 53rd percentile. The dashed line is the type median, 7.5; this vessel reported 7.7.
Across the 14 ranked vessels operated by V-Ships, the median percentile is 59. This vessel is more efficient than its own fleet median.
EEOI divides emissions by transport work, which for this vessel and year was 817,615,885 tonne-miles over 22,694 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 25.0% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2022, so the series has gaps.
From 2024 to 2025, emissions rose 220.0% and CO₂ per nautical mile fell 13.2%.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
- 6,377 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.36 t
- Under EU ETS
- 3,731 t, 59% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2019 | Nippon Kaiji Kyokai | Japan |
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.