Oil tanker · Türkiye flag · built 2019
T. ADALYN: CO₂ emissions 2021–2025
IMO 9830305 EU ETS5 reporting years
- CO₂ reported 2025
- 12,122 t
- Fuel burned
- 3,902 t
- Distance
- 61,654 nm
- Time at sea
- 5,652 h
- Emitted at berth
- 3% of total
- Share of year under way
- 65%
- Gross tonnage
- 12,539
T. ADALYN against its type
Built in 2019, it is 9 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 12,539 gross tonnage it is smaller than 94% of the other 2,841 oil tankers with a recorded tonnage. It is one of 27 oil tankers here under the Türkiye flag, 0.8% of the 3,548 on the register. Its MRV returns name it T. ADALYN for 2021–2022 and T.ADALYN for 2023–2025. The returns for 2021–2025 all give ISTANBUL as port of registry.
Its 12,122 t of CO₂ for 2025 is 1.5 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 196.6 kg CO₂, 51% below the type median of 403.2 kg. It logged 5,652 hours at sea against a median of 2,030 hours for its type that year. 3.2% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 5 years with reported emissions, the highest was 2022 (12,345 t) and the lowest 2021 (6,050 t). Its efficiency percentile within the type was 99 in both 2022 and 2025. Of the 7 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2021–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 12,122 | 3,902 | 61,654 | 5,652 | 391 | 196.6 | 37.6 | 99 |
| 2024 | 10,288 | 3,294 | 48,858 | 4,397 | 270 | 210.6 | 37.9 | 100 |
| 2023 | 10,857 | 3,479 | 48,148 | 4,522 | 523 | 225.5 | 31.9 | 97 |
| 2022 | 12,345 | 3,950 | 52,085 | 4,878 | 275 | 237.0 | 35.5 | 99 |
| 2021 | 6,050 | 1,931 | — | 2,408 | 178 | 249.2 | 46.8 | not ranked |
Vessel particulars
- IMO number
- 9830305
- Previously reported as
- T.ADALYN
- Ship type
- Oil tanker
- Gross tonnage
- 12,539
- Length overall
- 153.9 m
- Beam
- 22.2 m
- Year built
- 2019
- Flag state
- Türkiye per EU MRV 2025
- Port of registry
- Istanbul MRV 2025
- Technical efficiency (design)
- EEXI (9.59 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-05
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,434 of 1,448 qualifying oil tankers by EEOI, at the 99th percentile. The dashed line is the type median, 7.5; this vessel reported 37.6.
EEOI divides emissions by transport work, which for this vessel and year was 321,960,159 tonne-miles over 61,654 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 100.4% higher than in 2021, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 17.8% while distance sailed rose 26.2%and CO₂ per nautical mile fell 6.6%.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
- 12,313 t
- Methane (CH₄)
- 0.20 t
- Nitrous oxide (N₂O)
- 0.70 t
- Under EU ETS
- 7,387 t, 61% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2021–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 MRV reporting years, an efficiency ranking, 4 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.