Oil tanker · Denmark flag · built 2015
NISSOS THERASSIA: CO₂ emissions 2018–2025
IMO 9694646 MMSI 219029025EU ETS8 reporting years
- CO₂ reported 2025
- 18,527 t
- Fuel burned
- 5,917 t
- Distance
- 53,085 nm
- Time at sea
- 4,648 h
- Emitted at berth
- 7% of total
- Share of year under way
- 53%
NISSOS THERASSIA against its type
Built in 2015, it is 5 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). It is one of 72 oil tankers here under the Denmark flag, 2.0% 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 NISSOS THERASSIA for 2018–2020 and TORM KRISTINA for 2021–2025. The reported port of registry changed: Piraeus (2018–2020), then Copenhagen (2021–2025).
Its 18,527 t of CO₂ for 2025 is 2.3 times the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 349.0 kg CO₂, 13% below the type median of 403.2 kg. It logged 4,648 hours at sea against a median of 2,030 hours for its type that year. 6.7% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2018 (18,558 t) and the lowest 2023 (5,018 t). Its efficiency percentile within the type went from 46 in 2018 to 22 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 0 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 | 18,527 | 5,917 | 53,085 | 4,648 | 1,234 | 349.0 | 5.4 | 22 |
| 2024 | 9,468 | 3,035 | 24,546 | 2,052 | 269 | 385.7 | 7.8 | 52 |
| 2023 | 5,018 | 1,604 | 11,334 | 815 | 617 | 442.8 | 4.8 | 12 |
| 2022 | 6,661 | 2,132 | 16,096 | 1,332 | 365 | 413.9 | 7.8 | 47 |
| 2021 | 13,552 | 4,323 | 35,784 | 3,351 | 1,041 | 378.7 | 6.9 | 35 |
| 2020 | 15,752 | 5,023 | 37,306 | 3,544 | 2,373 | 422.2 | 9.2 | 54 |
| 2019 | 12,961 | 4,119 | 31,141 | 4,277 | 1,664 | 416.2 | 8.9 | 55 |
| 2018 | 18,558 | 5,949 | 48,341 | 4,781 | 1,670 | 383.9 | 8.1 | 46 |
Vessel particulars
- IMO number
- 9694646
- Previously reported as
- TORM KRISTINA
- MMSI
- 219029025
- Call sign
- OZEJ2
- Ship type
- Oil tanker
- Length overall
- 252.0 m
- Beam
- 45.0 m
- Year built
- 2015
- Flag state
- Denmark per EU MRV 2025
- Builder
- HD Hyundai Heavy Industries
- Port of registry
- Copenhagen MRV 2025
- Technical efficiency (design)
- EEXI (2.91 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 314 of 1,448 qualifying oil tankers by EEOI, at the 22nd percentile. The dashed line is the type median, 7.5; this vessel reported 5.4.
EEOI divides emissions by transport work, which for this vessel and year was 3,456,485,075 tonne-miles over 53,085 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 0.2% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 95.7% while distance sailed rose 116.3%and CO₂ per nautical mile fell 9.5%.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
- 18,817 t
- Methane (CH₄)
- 0.30 t
- Nitrous oxide (N₂O)
- 1.07 t
- Under EU ETS
- 10,126 t, 55% of total
Observed movementsAIS · Norwegian waters
- First seen
- 08 Feb 2026
- Last seen
- 13 Feb 2026
- Days observed
- 4
- Positions
- 142
- Median speed
- 10.6 kn
Its recorded positions span 58.0°N to 60.8°N and 4.4°E to 5.6°E.
44 hourly points from 142 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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 |
| 2020 | 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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars, AIS movements in Norwegian waters and a name history. Not found in the sources for this vessel: 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.