Oil tanker · Portugal flag · built 2007
PATARA: CO₂ emissions 2018–2025
IMO 9344423 EU ETS8 reporting years
- CO₂ reported 2025
- 7,649 t
- Fuel burned
- 2,386 t
- Distance
- 27,119 nm
- Time at sea
- 2,651 h
- Emitted at berth
- 16% of total
- Share of year under way
- 30%
- Gross tonnage
- 12,164
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PATARA against its type
Built in 2007, it is 3 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 12,164 gross tonnage it is smaller than 94% of the other 2,841 oil tankers with a recorded tonnage. It is one of 56 oil tankers here under the Portugal flag, 1.6% of the 3,548 on the register. Its MRV returns name it PATARA for 2018–2024 and RUBIKON 202 for 2025. The reported port of registry changed: Valletta (2018–2020), then Madeira (2021–2025).
Its 7,649 t of CO₂ for 2025 is close to the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 282.1 kg CO₂, 30% below the type median of 403.2 kg. It logged 2,651 hours at sea against a median of 2,030 hours for its type that year. 16.3% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2023 (11,226 t) and the lowest 2025 (7,649 t). Its efficiency percentile within the type went from 97 in 2018 to 98 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 5 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 | 7,649 | 2,386 | 27,119 | 2,651 | 1,246 | 282.1 | 33.7 | 98 |
| 2024 | 8,466 | 2,641 | 30,972 | 3,662 | 1,053 | 273.3 | 40.4 | 100 |
| 2023 | 11,226 | 3,501 | 42,054 | 3,874 | 1,771 | 266.9 | 37.8 | 98 |
| 2022 | 10,019 | 3,136 | 34,044 | 3,344 | 1,160 | 294.3 | 42.2 | 94 |
| 2021 | 10,808 | 3,383 | 31,743 | 3,337 | 1,330 | 340.5 | 47.4 | 96 |
| 2020 | 10,817 | 3,388 | 28,560 | 3,005 | 2,097 | 378.8 | 58.0 | 98 |
| 2019 | 9,508 | 3,000 | 21,421 | 4,604 | 3,218 | 443.9 | 53.0 | 97 |
| 2018 | 9,295 | 2,934 | 23,346 | 4,746 | 2,940 | 398.1 | 53.3 | 97 |
Vessel particulars
- IMO number
- 9344423
- Previously reported as
- RUBIKON 202
- Ship type
- Oil tanker
- Gross tonnage
- 12,164
- Length overall
- 144.1 m
- Year built
- 2007
- Flag state
- Portugal per EU MRV 2025
- Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EIV (13.42 gCO₂/t·nm)
- Verifier
- EnvService GmbH, Germany
- Accreditation
- D-VS-20809-01-00
- Compliance document issued
- 2026-03-02
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,426 of 1,448 qualifying oil tankers by EEOI, at the 98th percentile. The dashed line is the type median, 7.5; this vessel reported 33.7.
EEOI divides emissions by transport work, which for this vessel and year was 227,242,424 tonne-miles over 27,119 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 17.7% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 9.6% while distance sailed fell 12.4%and CO₂ per nautical mile rose 3.2%.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
- 7,766 t
- Methane (CH₄)
- 0.12 t
- Nitrous oxide (N₂O)
- 0.43 t
- Under EU ETS
- 5,094 t, 67% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Swiss Climate EcoCare GmbH | Germany |
| 2024 | EnvService GmbH | 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 8 MRV reporting years, an efficiency ranking, 4 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.