General cargo ship · Panama flag · built 1998
MARIANA: CO₂ emissions 2018–2025
IMO 9189938 EU ETS4 reporting years
- CO₂ reported 2025
- 1,287 t
- Fuel burned
- 405 t
- Time at sea
- 472 h
- Emitted at berth
- 4% of total
- Share of year under way
- 5%
- Gross tonnage
- 29,688
MARIANA against its type
Built in 1998, it is 9 years older than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 29,688 gross tonnage it is larger than 94% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 310 general cargo ships here under the Panama flag, 10.1% of the 3,081 on the register. The same builder is recorded for 90 other vessels here, 8 of them general cargo ships. Its MRV returns name it MARIANA for 2018–2019 and OCEANA SKY for 2024–2025. The reported port of registry changed: Douglas (2018–2019), then Panama (2024–2025).
Its 1,287 t of CO₂ for 2025 is 54% below the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 241.2 kg CO₂, 2.0 times the type median of 122.2 kg. It logged 472 hours at sea against a median of 3,044 hours for its type that year. 3.6% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 3 years with reported emissions, the highest was 2018 (9,836 t) and the lowest 2025 (1,287 t). The one sister ship listed below with a 2025 return reported a higher or equal 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 | 1,287 | 405 | — | 472 | 47 | 241.2 | — | — |
| 2024 | No EU/EEA voyages reported | |||||||
| 2019 | 8,741 | 2,802 | — | 2,858 | 134 | 253.1 | — | — |
| 2018 | 9,836 | 3,155 | — | 3,052 | 160 | 299.5 | — | — |
Vessel particulars
- IMO number
- 9189938
- Previously reported as
- OCEANA SKY
- Ship type
- General cargo ship
- Gross tonnage
- 29,688
- Length overall
- 194.9 m
- Beam
- 32.2 m
- Year built
- 1998
- Flag state
- Panama per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Isle of Man. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Namura Shipbuilding
- Port of registry
- Panama MRV 2025
- Technical efficiency (design)
- EEXI (5.92 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-28
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 86.9% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, 2023, so the series has gaps.
From 2019 to 2025, emissions fell 85.3% and CO₂ per nautical mile fell 4.7%.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
- 1,307 t
- Methane (CH₄)
- 0.02 t
- Nitrous oxide (N₂O)
- 0.07 t
- Under EU ETS
- 667 t, 52% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2024 | NORMEC VERIFAVIA SAS | France |
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).
This page draws on 4 MRV reporting years, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, AIS movements in Norwegian waters, 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.