Oil tanker · Portugal flag · built 2005
PATRICIA: CO₂ emissions 2018–2025
IMO 9312078 EU ETS8 reporting years
- CO₂ reported 2025
- 9,303 t
- Fuel burned
- 2,914 t
- Distance
- 33,849 nm
- Time at sea
- 3,304 h
- Emitted at berth
- 15% of total
- Share of year under way
- 38%
- Gross tonnage
- 11,935
PATRICIA against its type
Built in 2005, it is 5 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 11,935 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. The same builder is recorded for 98 other vessels here, 19 of them oil tankers. Its MRV returns name it PATRICIA for 2018–2023 and RUBIKON 78 for 2024–2025. The reported port of registry changed: Valletta (2018–2019), then Madeira (2020–2025).
Its 9,303 t of CO₂ for 2025 is 17% 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 274.9 kg CO₂, 32% below the type median of 403.2 kg. It logged 3,304 hours at sea against a median of 2,030 hours for its type that year. 15.1% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2022 (11,110 t) and the lowest 2024 (8,518 t). Its efficiency percentile within the type went from 87 in 2018 to 99 in 2025 (lower is more efficient). Of the 6 sister ships 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 | 9,303 | 2,914 | 33,849 | 3,304 | 1,403 | 274.9 | 34.2 | 99 |
| 2024 | 8,518 | 2,657 | 32,342 | 3,213 | 1,123 | 263.4 | 36.6 | 99 |
| 2023 | 11,005 | 3,436 | 40,114 | 3,981 | 1,161 | 274.3 | 36.2 | 98 |
| 2022 | 11,110 | 3,516 | 40,361 | 4,013 | 1,109 | 275.3 | 58.2 | 99 |
| 2021 | 9,337 | 2,976 | 35,833 | 3,560 | 1,448 | 260.6 | 52.0 | 97 |
| 2020 | 9,382 | 2,986 | 39,809 | 4,214 | 554 | 235.7 | 39.3 | 91 |
| 2019 | 8,634 | 2,725 | 34,403 | 4,861 | 950 | 251.0 | 32.2 | 85 |
| 2018 | 10,917 | 3,466 | 38,562 | 5,956 | 1,198 | 283.1 | 35.6 | 87 |
Vessel particulars
- IMO number
- 9312078
- Previously reported as
- RUBIKON 78
- Ship type
- Oil tanker
- Gross tonnage
- 11,935
- Length overall
- 144.0 m
- Year built
- 2005
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Malta. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Jiangnan Shipyard
- Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EIV (12.93 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 1,430 of 1,448 qualifying oil tankers by EEOI, at the 99th percentile. The dashed line is the type median, 7.5; this vessel reported 34.2.
EEOI divides emissions by transport work, which for this vessel and year was 271,952,353 tonne-miles over 33,849 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 14.8% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 9.2% while distance sailed rose 4.7%and CO₂ per nautical mile rose 4.4%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 9,447 t
- Methane (CH₄)
- 0.15 t
- Nitrous oxide (N₂O)
- 0.52 t
- Under EU ETS
- 7,561 t, 81% 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, 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.