Oil tanker · Liberia flag · built 2019
ALKINOOS: CO₂ emissions 2019–2025
IMO 9792864 EU ETS7 reporting years
- CO₂ reported 2025
- 11,651 t
- Fuel burned
- 3,725 t
- Distance
- 27,956 nm
- Time at sea
- 2,659 h
- Emitted at berth
- 5% of total
- Share of year under way
- 30%
- Gross tonnage
- 62,508
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ALKINOOS 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 62,508 gross tonnage it is larger than 59% 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 194 other vessels here, 56 of them oil tankers. Its MRV returns name it KASTELORIZO for 2019–2020, ALKINOOS for 2021–2023 and PIS RINJANI for 2024–2025. The reported port of registry changed: Piraeus (2019–2020), then Monrovia (2021–2025).
Its 11,651 t of CO₂ for 2025 is 47% above the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 416.8 kg CO₂, close to the type median of 403.2 kg. It logged 2,659 hours at sea against a median of 2,030 hours for its type that year. 5.5% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2022 (16,266 t) and the lowest 2023 (6,483 t). Its efficiency percentile within the type went from 23 in 2019 to 63 in 2025 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 11,651 | 3,725 | 27,956 | 2,659 | 639 | 416.8 | 8.6 | 63 |
| 2024 | 12,914 | 4,129 | 30,907 | 2,633 | 432 | 417.8 | 6.0 | 30 |
| 2023 | 6,483 | 2,050 | 16,107 | 1,864 | 458 | 402.5 | 9.9 | 66 |
| 2022 | 16,266 | 5,132 | 39,134 | 4,096 | 1,613 | 415.6 | 8.8 | 57 |
| 2021 | 11,642 | 3,671 | 25,578 | 2,016 | 937 | 455.2 | 6.8 | 33 |
| 2020 | 16,189 | 5,097 | 45,457 | 3,668 | 1,027 | 356.1 | 5.6 | 16 |
| 2019 | 8,912 | 2,844 | 21,604 | 3,036 | 578 | 412.5 | 6.1 | 23 |
Vessel particulars
- IMO number
- 9792864
- Previously reported as
- KASTELORIZO, PIS RINJANI
- Ship type
- Oil tanker
- Gross tonnage
- 62,508
- Length overall
- 249.0 m
- Beam
- 44.0 m
- Year built
- 2019
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- MONROVIA MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (3.16 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-04-08
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 917 of 1,448 qualifying oil tankers by EEOI, at the 63rd percentile. The dashed line is the type median, 7.5; this vessel reported 8.6.
EEOI divides emissions by transport work, which for this vessel and year was 1,354,719,767 tonne-miles over 27,956 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 30.7% higher than in 2019, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 9.8% while distance sailed fell 9.5%and CO₂ per nautical mile fell 0.3%.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
- 11,833 t
- Methane (CH₄)
- 0.19 t
- Nitrous oxide (N₂O)
- 0.67 t
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | HELLENIC LLOYD'S S.A. | Greece |
| 2025 | DNV | Germany |
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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.