Oil tanker · Marshall Islands flag · built 2010
CUMBIA1: CO₂ emissions 2018–2025
IMO 9436343 EU ETS5 reporting years
- CO₂ reported 2025
- 5,910 t
- Fuel burned
- 1,876 t
- Distance
- 13,577 nm
- Time at sea
- 1,245 h
- Emitted at berth
- 9% of total
- Share of year under way
- 14%
- Gross tonnage
- 30,221
CUMBIA1 against its type
Built in 2010, it is the same age as the median oil tanker on this register (build year 2010, 2,896 vessels with a known build year). At 30,221 gross tonnage it is smaller than 70% of the other 2,841 oil tankers with a recorded tonnage. It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The same builder is recorded for 192 other vessels here, 71 of them oil tankers. Its MRV returns name it GRAZIA for 2018–2021 and CUMBIA1 for 2024–2025. The reported port of registry changed: Venice (2018–2021), then Majuro (2024–2025).
Its 5,910 t of CO₂ for 2025 is 25% 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 435.3 kg CO₂, close to the type median of 403.2 kg. It logged 1,245 hours at sea against a median of 2,030 hours for its type that year. 9.3% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2018 (9,712 t) and the lowest 2019 (3,027 t). Its efficiency percentile within the type went from 57 in 2018 to 95 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 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 | 5,910 | 1,876 | 13,577 | 1,245 | 552 | 435.3 | 23.3 | 95 |
| 2024 | No EU/EEA voyages reported | |||||||
| 2021 | 6,978 | 2,218 | 21,462 | 2,167 | 564 | 325.1 | 9.5 | 10 |
| 2019 | 3,027 | 969 | 8,905 | 910 | 26 | 339.9 | 16.6 | 50 |
| 2018 | 9,712 | 3,107 | 30,849 | 3,091 | 312 | 314.8 | 18.0 | 57 |
Vessel particulars
- IMO number
- 9436343
- Previously reported as
- GRAZIA
- Ship type
- Oil tanker
- Gross tonnage
- 30,221
- Length overall
- 183.0 m
- Year built
- 2010
- Flag state
- Marshall Islands per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Italy. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.95 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-19
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,372 of 1,448 qualifying oil tankers by EEOI, at the 95th percentile. The dashed line is the type median, 7.5; this vessel reported 23.3.
EEOI divides emissions by transport work, which for this vessel and year was 253,660,515 tonne-miles over 13,577 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 39.1% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2022, 2023, so the series has gaps.
From 2021 to 2025, emissions fell 15.3% while distance sailed fell 36.7%and CO₂ per nautical mile rose 33.9%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 6,002 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.34 t
- Under EU ETS
- 4,230 t, 72% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2021 | RINA Services Spa | Italy |
| 2024 | HELLENIC LLOYD'S S.A. | Greece |
| 2025 | DNV | 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).
This page draws on 5 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: 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.