Oil tanker · Liberia flag
PACIFIC COBALT: CO₂ emissions 2020–2025
IMO 9788617 EU ETS5 reporting years
- CO₂ reported 2025
- 3,846 t
- Fuel burned
- 1,227 t
- Distance
- 12,323 nm
- Time at sea
- 1,016 h
- Emitted at berth
- 14% of total
- Share of year under way
- 12%
PACIFIC COBALT against its type
It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. The returns for 2020–2025 all give Monrovia as port of registry.
Its 3,846 t of CO₂ for 2025 is 51% 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 312.1 kg CO₂, 23% below the type median of 403.2 kg. It logged 1,016 hours at sea against a median of 2,030 hours for its type that year. 14.3% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 5 years with reported emissions, the highest was 2023 (12,347 t) and the lowest 2021 (2,655 t). Its efficiency percentile within the type went from 4 in 2020 to 79 in 2025 (lower is more efficient). Of the 4 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2020–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 3,846 | 1,227 | 12,323 | 1,016 | 550 | 312.1 | 11.4 | 79 |
| 2023 | 12,347 | 3,946 | 42,721 | 3,584 | 617 | 289.0 | 11.1 | 74 |
| 2022 | 4,560 | 1,436 | 13,698 | 1,109 | 962 | 332.9 | 10.9 | 22 |
| 2021 | 2,655 | 840 | 10,622 | 896 | 109 | 249.9 | 7.6 | 3 |
| 2020 | 4,416 | 1,397 | 15,026 | 1,199 | 239 | 293.9 | 7.6 | 4 |
Vessel particulars
- IMO number
- 9788617
- Ship type
- Oil tanker
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Ice class
- IC
- Technical efficiency (design)
- EEDI (4.88 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
- 2026-03-25
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,148 of 1,448 qualifying oil tankers by EEOI, at the 79th percentile. The dashed line is the type median, 7.5; this vessel reported 11.4.
EEOI divides emissions by transport work, which for this vessel and year was 337,669,008 tonne-miles over 12,323 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 12.9% lower than in 2020, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2023 to 2025, emissions fell 68.8% while distance sailed fell 71.2%and CO₂ per nautical mile rose 8.0%.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
- 3,906 t
- Methane (CH₄)
- 0.06 t
- Nitrous oxide (N₂O)
- 0.22 t
- Under EU ETS
- 2,468 t, 64% of total
Laden voyages2025
- CO₂ on laden voyages
- 3,107 t, 81% of total
- Fuel, laden
- 996 t
- CO₂ per nm, laden
- 265.5 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 2020–2025, published by the European Commission.
This page draws on 5 MRV reporting years, an efficiency ranking and 1 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.