Oil tanker · Marshall Islands flag · built 2017
FRONT DUCHESS: CO₂ emissions 2018–2025
IMO 9771341 EU ETS3 reporting years
- CO₂ reported 2025
- 6,159 t
- Fuel burned
- 1,967 t
- Distance
- 10,876 nm
- Time at sea
- 963 h
- Emitted at berth
- 8% of total
- Share of year under way
- 11%
- Gross tonnage
- 154,379
FRONT DUCHESS against its type
Built in 2017, it is 7 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 154,379 gross tonnage it is larger than 88% 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. The returns for 2018–2025 all give Majuro as port of registry.
Its 6,159 t of CO₂ for 2025 is 22% 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 566.3 kg CO₂, 40% above the type median of 403.2 kg. It logged 963 hours at sea against a median of 2,030 hours for its type that year. 7.8% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 3 years with reported emissions, the highest was 2019 (10,167 t) and the lowest 2025 (6,159 t). Its efficiency percentile within the type went from 2 in 2018 to 15 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 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 | 6,159 | 1,967 | 10,876 | 963 | 483 | 566.3 | 4.8 | 15 |
| 2019 | 10,167 | 3,254 | 17,746 | 1,908 | 425 | 572.9 | 3.0 | 3 |
| 2018 | 8,685 | 2,781 | 16,680 | 1,614 | 366 | 520.7 | 2.7 | 2 |
Vessel particulars
- IMO number
- 9771341
- Ship type
- Oil tanker
- Gross tonnage
- 154,379
- Length overall
- 333.0 m
- Beam
- 60.0 m
- Year built
- 2017
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- HD Hyundai Heavy Industries
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (2.19 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-01-21
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 224 of 1,448 qualifying oil tankers by EEOI, at the 15th percentile. The dashed line is the type median, 7.5; this vessel reported 4.8.
EEOI divides emissions by transport work, which for this vessel and year was 1,275,099,379 tonne-miles over 10,876 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 29.1% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, 2023, 2024, so the series has gaps.
From 2019 to 2025, emissions fell 39.4% while distance sailed fell 38.7%and CO₂ per nautical mile fell 1.2%.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
- 6,255 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 3,321 t, 54% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 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 and 5 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.