Oil tanker · Liberia flag · built 2017
RIVERA: CO₂ emissions 2018–2025
IMO 9777943 EU ETS8 reporting years
- CO₂ reported 2025
- 17,060 t
- Fuel burned
- 5,453 t
- Distance
- 44,259 nm
- Time at sea
- 4,224 h
- Emitted at berth
- 7% of total
- Share of year under way
- 48%
- Gross tonnage
- 61,468
RIVERA against its type
Built in 2017, it is 7 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 61,468 gross tonnage it is larger than 56% 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 563 other vessels here, 217 of them oil tankers. The reported port of registry changed: Valletta (2018–2022), then Monrovia (2023–2025).
Its 17,060 t of CO₂ for 2025 is 2.2 times the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 385.4 kg CO₂, close to the type median of 403.2 kg. It logged 4,224 hours at sea against a median of 2,030 hours for its type that year. 7.0% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2024 (26,092 t) and the lowest 2023 (10,690 t). Its efficiency percentile within the type went from 57 in 2018 to 63 in 2025 (lower is more efficient). Of the 7 sister ships listed below with a 2025 return, 3 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 | 17,060 | 5,453 | 44,259 | 4,224 | 1,190 | 385.4 | 8.5 | 63 |
| 2024 | 26,092 | 8,351 | 68,771 | 6,195 | 1,905 | 379.4 | 6.0 | 31 |
| 2023 | 10,690 | 3,418 | 26,971 | 2,374 | 868 | 396.3 | 5.0 | 14 |
| 2022 | 17,633 | 5,635 | 44,599 | 4,134 | 2,854 | 395.4 | 8.2 | 52 |
| 2021 | 16,292 | 5,169 | 40,737 | 3,624 | 1,637 | 399.9 | 6.6 | 32 |
| 2020 | 11,410 | 3,609 | 24,758 | 2,493 | 1,188 | 460.8 | 5.8 | 19 |
| 2019 | 18,393 | 5,865 | 52,329 | 6,132 | 1,765 | 351.5 | 7.3 | 38 |
| 2018 | 15,941 | 5,074 | 36,591 | 6,421 | 672 | 435.7 | 9.4 | 57 |
Vessel particulars
- IMO number
- 9777943
- Ship type
- Oil tanker
- Gross tonnage
- 61,468
- Length overall
- 249.9 m
- Year built
- 2017
- Flag state
- Liberia 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
- Samsung Heavy Industries
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Ice class
- IA
- Technical efficiency (design)
- EEDI (3.21 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-04-07
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 908 of 1,448 qualifying oil tankers by EEOI, at the 63rd percentile. The dashed line is the type median, 7.5; this vessel reported 8.5.
EEOI divides emissions by transport work, which for this vessel and year was 2,004,641,598 tonne-miles over 44,259 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 7.0% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 34.6% while distance sailed fell 35.6%and CO₂ per nautical mile rose 1.6%.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
- 17,327 t
- Methane (CH₄)
- 0.27 t
- Nitrous oxide (N₂O)
- 0.98 t
- Under EU ETS
- 9,763 t, 57% of total
Laden voyages2025
- CO₂ on laden voyages
- 8,367 t, 49% of total
- Fuel, laden
- 2,680 t
- CO₂ per nm, laden
- 387.6 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
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).
This page draws on 8 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.