Oil tanker · Isle of Man flag · built 2017
BRITISH REASON: CO₂ emissions 2018–2025
IMO 9683087 MMSI 235108534EU ETS7 reporting years
- CO₂ reported 2025
- 17,387 t
- Fuel burned
- 5,505 t
- Distance
- 42,391 nm
- Time at sea
- 3,820 h
- Emitted at berth
- 9% of total
- Share of year under way
- 44%
- Gross tonnage
- 64,309
BRITISH REASON 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 64,309 gross tonnage it is larger than 67% of the other 2,841 oil tankers with a recorded tonnage. It is one of 40 oil tankers here under the Isle of Man flag, 1.1% of the 3,548 on the register. The same builder is recorded for 96 other vessels here, 19 of them oil tankers. Its MRV returns name it BRITISH REASON for 2018–2019 and KMARIN REASON for 2020–2025. The returns for 2018–2025 all give Douglas as port of registry.
Its 17,387 t of CO₂ for 2025 is 2.2 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 410.2 kg CO₂, close to the type median of 403.2 kg. It logged 3,820 hours at sea against a median of 2,030 hours for its type that year. 8.8% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2020 (22,587 t) and the lowest 2021 (1,659 t). Its efficiency percentile within the type went from 32 in 2018 to 54 in 2025 (lower is more efficient). Of the 4 sister ships listed below with a 2025 return, 3 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 | 17,387 | 5,505 | 42,391 | 3,820 | 1,535 | 410.2 | 7.7 | 54 |
| 2024 | 5,202 | 1,665 | 12,587 | 1,101 | 276 | 413.3 | 5.2 | 20 |
| 2022 | 5,710 | 1,827 | 15,138 | 1,293 | 513 | 377.2 | 8.1 | 51 |
| 2021 | 1,659 | 530 | 4,292 | 328 | 110 | 386.5 | 4.3 | 8 |
| 2020 | 22,587 | 7,133 | 38,672 | 3,886 | 2,153 | 584.1 | 10.9 | 66 |
| 2019 | 11,018 | 3,514 | 25,572 | 2,236 | 1,004 | 430.9 | 6.4 | 27 |
| 2018 | 4,312 | 1,375 | 7,079 | 1,958 | 395 | 609.1 | 6.8 | 32 |
Vessel particulars
- IMO number
- 9683087
- Previously reported as
- KMARIN REASON
- MMSI
- 235108534
- Call sign
- 2ICI7
- Ship type
- Oil tanker
- Gross tonnage
- 64,309
- Length overall
- 250.0 m
- Beam
- 44.0 m
- Year built
- 2017
- Flag state
- Isle of Man per EU MRV 2025
- Builder
- STX Offshore & Shipbuilding
- Port of registry
- Douglas MRV 2025
- Technical efficiency (design)
- EEDI (3.12 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-19
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 775 of 1,448 qualifying oil tankers by EEOI, at the 54th percentile. The dashed line is the type median, 7.5; this vessel reported 7.7.
EEOI divides emissions by transport work, which for this vessel and year was 2,249,320,828 tonne-miles over 42,391 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 303.3% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2024 to 2025, emissions rose 234.2% while distance sailed rose 236.8%and CO₂ per nautical mile fell 0.8%.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
- 17,658 t
- Methane (CH₄)
- 0.28 t
- Nitrous oxide (N₂O)
- 0.99 t
- Under EU ETS
- 10,579 t, 61% of total
Observed movementsAIS · Norwegian waters
- First seen
- 01 Jul 2025
- Last seen
- 18 Apr 2026
- Days observed
- 5
- Positions
- 292
- Median speed
- 11.5 kn
Its recorded positions span 58.0°N to 58.8°N and 4.5°E to 6.2°E.
26 hourly points from 292 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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 |
| 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.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters, a name history and a licensed photograph. Not found in the sources for this vessel: 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.