Oil tanker · Bahamas flag · built 2022
THORNBURY: CO₂ emissions 2022–2025
IMO 9910533 MMSI 311001025EU ETS4 reporting years
- CO₂ reported 2025
- 12,461 t
- Fuel burned
- 3,939 t
- Distance
- 31,104 nm
- Time at sea
- 4,441 h
- Emitted at berth
- 23% of total
- Share of year under way
- 51%
- Gross tonnage
- 60,135
THORNBURY against its type
Built in 2022, it is 12 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 60,135 gross tonnage it is larger than 51% of the other 2,841 oil tankers with a recorded tonnage. It is one of 180 oil tankers here under the Bahamas flag, 5.1% of the 3,548 on the register. The same builder is recorded for 57 other vessels here, 42 of them oil tankers. The returns for 2022–2025 all give Nassau as port of registry.
Its 12,461 t of CO₂ for 2025 is 1.6 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 400.6 kg CO₂, close to the type median of 403.2 kg. It logged 4,441 hours at sea against a median of 2,030 hours for its type that year. 23.1% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2025 (12,461 t) and the lowest 2024 (10,148 t). Its efficiency percentile within the type went from 44 in 2022 to 62 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a lower CO₂ per nautical mile.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 12,461 | 3,939 | 31,104 | 4,441 | 2,878 | 400.6 | 8.4 | 62 |
| 2024 | 10,148 | 3,179 | 27,724 | 3,381 | 2,129 | 366.0 | 6.4 | 34 |
| 2023 | 12,312 | 3,891 | 34,155 | 4,376 | 3,023 | 360.5 | 7.6 | 46 |
| 2022 | 11,542 | 3,642 | 32,188 | 4,109 | 2,097 | 358.6 | 7.4 | 44 |
Vessel particulars
- IMO number
- 9910533
- MMSI
- 311001025
- Call sign
- C6EX2
- Ship type
- Oil tanker
- Gross tonnage
- 60,135
- Length overall
- 237.0 m
- Beam
- 44.0 m
- Year built
- 2022
- Flag state
- Bahamas per EU MRV 2025
- Builder
- Sumitomo Heavy Industries
- Port of registry
- Nassau MRV 2025
- Technical efficiency (design)
- EEXI (3.04 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 895 of 1,448 qualifying oil tankers by EEOI, at the 62nd percentile. The dashed line is the type median, 7.5; this vessel reported 8.4.
EEOI divides emissions by transport work, which for this vessel and year was 1,481,703,924 tonne-miles over 31,104 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 8.0% higher than in 2022, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 22.8% while distance sailed rose 12.2%and CO₂ per nautical mile rose 9.4%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 12,655 t
- Methane (CH₄)
- 0.20 t
- Nitrous oxide (N₂O)
- 0.71 t
- Under EU ETS
- 9,522 t, 76% of total
Observed movementsAIS · Norwegian waters
- First seen
- 03 Dec 2025
- Last seen
- 16 Jul 2026
- Days observed
- 29
- Positions
- 1,336
- Median speed
- 7.4 kn
Its recorded positions span 58.0°N to 60.9°N and 4.4°E to 6.2°E.
308 hourly points from 1,336 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.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2022–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.