Oil tanker · Malta flag · built 2012
DENSA WHALE: CO₂ emissions 2018–2025
IMO 9601223 EU ETS7 reporting years
- CO₂ reported 2025
- 10,972 t
- Fuel burned
- 3,487 t
- Distance
- 19,290 nm
- Time at sea
- 2,025 h
- Emitted at berth
- 8% of total
- Share of year under way
- 23%
- Gross tonnage
- 81,186
DENSA WHALE against its type
Built in 2012, it is 2 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 81,186 gross tonnage it is larger than 72% of the other 2,841 oil tankers with a recorded tonnage. It is one of 289 oil tankers here under the Malta flag, 8.1% of the 3,548 on the register. The same builder is recorded for 761 other vessels here, 193 of them oil tankers. Its MRV returns name it DENSA WHALE for 2018–2021 and SEAMAJESTY for 2022–2025. The reported port of registry changed: Majuro (2018–2021), then VALLETTA (2022–2025).
Its 10,972 t of CO₂ for 2025 is 38% above the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 568.8 kg CO₂, 41% above the type median of 403.2 kg. It logged 2,025 hours at sea against a median of 2,030 hours for its type that year. 7.7% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2018 (19,525 t) and the lowest 2022 (2,465 t). Its efficiency percentile within the type went from 19 in 2018 to 72 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 2 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 | 10,972 | 3,487 | 19,290 | 2,025 | 840 | 568.8 | 10.0 | 72 |
| 2024 | 5,929 | 1,884 | 10,854 | 1,150 | 155 | 546.2 | 6.4 | 34 |
| 2023 | 14,434 | 4,603 | 26,562 | 2,809 | 1,394 | 543.4 | 7.4 | 45 |
| 2022 | 2,465 | 790 | 5,468 | 446 | 0 | 450.8 | 4.4 | 7 |
| 2021 | 11,239 | 3,576 | 18,326 | 1,706 | 840 | 613.3 | 6.0 | 24 |
| 2020 | 8,463 | 2,706 | 14,147 | 1,346 | 107 | 598.2 | 4.4 | 7 |
| 2018 | 19,525 | 6,245 | 37,543 | 4,341 | 954 | 520.1 | 5.4 | 19 |
Vessel particulars
- IMO number
- 9601223
- Previously reported as
- SEAMAJESTY
- Ship type
- Oil tanker
- Gross tonnage
- 81,186
- Length overall
- 274.3 m
- Beam
- 48.0 m
- Year built
- 2012
- Flag state
- Malta per EU MRV 2025
- Builder
- HD Hyundai Heavy Industries
- Port of registry
- Valletta MRV 2025
- Technical efficiency (design)
- EEXI (2.83 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-04-08
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,040 of 1,448 qualifying oil tankers by EEOI, at the 72nd percentile. The dashed line is the type median, 7.5; this vessel reported 10.0.
EEOI divides emissions by transport work, which for this vessel and year was 1,100,456,369 tonne-miles over 19,290 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 43.8% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2019, so the series has gaps.
From 2024 to 2025, emissions rose 85.1% while distance sailed rose 77.7%and CO₂ per nautical mile rose 4.1%.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
- 11,143 t
- Methane (CH₄)
- 0.17 t
- Nitrous oxide (N₂O)
- 0.63 t
- Under EU ETS
- 5,906 t, 54% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2022 | RINA HELLAS LTD | Greece |
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 7 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.