Oil tanker · Liberia flag · built 2009
BLUE SKY: CO₂ emissions 2018–2025
IMO 9413016 EU ETS7 reporting years
- CO₂ reported 2025
- 1,830 t
- Fuel burned
- 571 t
- Time at sea
- 215 h
- Emitted at berth
- 29% of total
- Share of year under way
- 2%
- Gross tonnage
- 55,863
BLUE SKY against its type
Built in 2009, it is 1 year older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 55,863 gross tonnage it is smaller than 57% 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 returns for 2018–2025 all give Monrovia as port of registry.
Its 1,830 t of CO₂ for 2025 is 77% 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 1,122.6 kg CO₂, 2.8 times the type median of 403.2 kg. It logged 215 hours at sea against a median of 2,030 hours for its type that year. 29.1% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2023 (13,286 t) and the lowest 2018 (1,230 t). The one comparable vessel listed below with a 2025 return reported a lower CO₂ per nautical mile.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 1,830 | 571 | — | 215 | 533 | 1,122.6 | 21.1 | not ranked |
| 2023 | 13,286 | 4,233 | — | 2,113 | 1,634 | 511.9 | — | — |
| 2022 | 1,627 | 520 | — | 324 | 95 | 613.1 | 14.7 | not ranked |
| 2021 | 4,868 | 1,539 | 9,014 | 821 | 101 | 540.1 | 10.4 | 66 |
| 2020 | 2,162 | 686 | — | 786 | 45 | 372.6 | 52.2 | not ranked |
| 2019 | 1,244 | 398 | — | 368 | 49 | 540.1 | 13.8 | not ranked |
| 2018 | 1,230 | 394 | — | 374 | 39 | 511.7 | 13.1 | not ranked |
Vessel particulars
- IMO number
- 9413016
- Ship type
- Oil tanker
- Gross tonnage
- 55,863
- Length overall
- 228.6 m
- Beam
- 42.0 m
- Year built
- 2009
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEXI (3.45 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 48.8% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2023 to 2025, emissions fell 86.2% and CO₂ per nautical mile rose 119.3%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,858 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.10 t
- Under EU ETS
- 1,257 t, 69% of total
Laden voyages2025
- CO₂ on laden voyages
- 1,120 t, 61% of total
- Fuel, laden
- 349 t
- CO₂ per nm, laden
- 1,022.1 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 7 MRV reporting years and 4 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, 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.