Oil tanker · Marshall Islands flag
BYZANTION: CO₂ emissions 2018–2025
IMO 9315898 EU ETS5 reporting years
- CO₂ reported 2025
- 2,334 t
- Fuel burned
- 735 t
- Time at sea
- 664 h
- Emitted at berth
- 13% of total
- Share of year under way
- 8%
BYZANTION against its type
It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The reported port of registry changed: Piraeus (2018–2019), then Majuro (2020–2025).
Its 2,334 t of CO₂ for 2025 is 71% 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 374.5 kg CO₂, close to the type median of 403.2 kg. It logged 664 hours at sea against a median of 2,030 hours for its type that year. 13.4% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2018 (9,618 t) and the lowest 2025 (2,334 t). Its efficiency percentile within the type went from 85 in 2018 to 91 in 2019 (lower is more efficient). Of the 2 comparable vessels listed below with a 2025 return, 0 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 | 2,334 | 735 | — | 664 | 313 | 374.5 | 35.7 | not ranked |
| 2024 | No EU/EEA voyages reported | |||||||
| 2020 | 4,239 | 1,345 | — | 1,456 | 227 | 353.0 | 27.0 | not ranked |
| 2019 | 8,812 | 2,815 | 22,997 | 2,435 | 1,039 | 383.2 | 21.7 | 91 |
| 2018 | 9,618 | 3,072 | 32,361 | 3,377 | 1,123 | 297.2 | 16.2 | 85 |
Vessel particulars
- IMO number
- 9315898
- Ship type
- Oil tanker
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Ice class
- IB
- Technical efficiency (design)
- EEXI (5.56 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-25
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 75.7% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2022, 2023, so the series has gaps.
From 2020 to 2025, emissions fell 44.9% and CO₂ per nautical mile rose 6.1%.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
- 2,370 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.13 t
- Under EU ETS
- 1,148 t, 49% of total
Laden voyages2025
- CO₂ on laden voyages
- 1,301 t, 56% of total
- Fuel, laden
- 408 t
- CO₂ per nm, laden
- 450.2 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2019 | 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.
This page draws on 5 MRV reporting years and 1 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, 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.