Oil tanker · Liberia flag · built 2020
HISTRIA DIONE: CO₂ emissions 2020–2025
IMO 9800805 EU ETS6 reporting years
- CO₂ reported 2025
- 4,940 t
- Fuel burned
- 1,555 t
- Distance
- 20,375 nm
- Time at sea
- 2,243 h
- Emitted at berth
- 17% of total
- Share of year under way
- 26%
- Gross tonnage
- 26,310
HISTRIA DIONE against its type
Built in 2020, it is 10 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 26,310 gross tonnage it is smaller than 86% of the other 2,841 oil tankers with a recorded tonnage. It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. The same builder is recorded for 21 other vessels here, 14 of them oil tankers. The returns for 2020–2025 all give Monrovia as port of registry.
Its 4,940 t of CO₂ for 2025 is 38% 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 242.4 kg CO₂, 40% below the type median of 403.2 kg. It logged 2,243 hours at sea against a median of 2,030 hours for its type that year. 16.9% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 6 years with reported emissions, the highest was 2021 (8,860 t) and the lowest 2020 (2,552 t). Its efficiency percentile within the type went from 42 in 2020 to 85 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 year2020–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,940 | 1,555 | 20,375 | 2,243 | 833 | 242.4 | 14.1 | 85 |
| 2024 | 8,061 | 2,548 | 32,129 | 3,223 | 1,295 | 250.9 | 14.9 | 87 |
| 2023 | 8,027 | 2,536 | 33,052 | 3,096 | 822 | 242.9 | 11.1 | 74 |
| 2022 | 7,580 | 2,403 | 33,098 | 3,231 | 1,023 | 229.0 | 13.9 | 83 |
| 2021 | 8,860 | 2,823 | 43,917 | 4,286 | 1,208 | 201.7 | 8.5 | 51 |
| 2020 | 2,552 | 810 | 13,337 | 1,220 | 232 | 191.3 | 7.8 | 42 |
Vessel particulars
- IMO number
- 9800805
- Ship type
- Oil tanker
- Gross tonnage
- 26,310
- Length overall
- 180.0 m
- Beam
- 32.0 m
- Year built
- 2020
- Flag state
- Liberia per EU MRV 2025
- Builder
- Constanța Shipyard
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (4.64 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,227 of 1,448 qualifying oil tankers by EEOI, at the 85th percentile. The dashed line is the type median, 7.5; this vessel reported 14.1.
EEOI divides emissions by transport work, which for this vessel and year was 349,338,048 tonne-miles over 20,375 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 93.6% higher than in 2020, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 38.7% while distance sailed fell 36.6%and CO₂ per nautical mile fell 3.4%.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
- 5,016 t
- Methane (CH₄)
- 0.08 t
- Nitrous oxide (N₂O)
- 0.28 t
- Under EU ETS
- 3,975 t, 80% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2020–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 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.