Gas carrier · Liberia flag · built 2017
ONTARIO: CO₂ emissions 2022–2025
IMO 9744831 MMSI 636017142EU ETS3 reporting years
- CO₂ reported 2025
- 8,575 t
- Fuel burned
- 2,727 t
- Distance
- 31,492 nm
- Time at sea
- 2,344 h
- Emitted at berth
- 8% of total
- Share of year under way
- 27%
- Gross tonnage
- 25,098
ONTARIO against its type
Built in 2017, it is 4 years newer than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). At 25,098 gross tonnage it is larger than 53% of the other 525 gas carriers with a recorded tonnage. It is one of 131 gas carriers here under the Liberia flag, 19.0% of the 688 on the register. The returns for 2022–2025 all give Monrovia as port of registry.
Its 8,575 t of CO₂ for 2025 is 44% above the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 272.3 kg CO₂, close to the type median of 256.2 kg. It logged 2,344 hours at sea against a median of 1,943 hours for its type that year. 7.9% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 3 years with reported emissions, the highest was 2025 (8,575 t) and the lowest 2023 (1,921 t). Its efficiency percentile within the type went from 29 in 2022 to 48 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 8,575 | 2,727 | 31,492 | 2,344 | 674 | 272.3 | 26.9 | 48 |
| 2023 | 1,921 | 612 | — | 480 | 61 | 284.1 | 132.7 | not ranked |
| 2022 | 7,634 | 2,414 | 26,118 | 1,821 | 1,461 | 292.3 | 23.4 | 29 |
Vessel particulars
- IMO number
- 9744831
- MMSI
- 636017142
- Ship type
- Gas carrier
- Gross tonnage
- 25,098
- Length overall
- 180.0 m
- Beam
- 28.0 m
- Year built
- 2017
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEXI (7.29 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-25
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 141 of 292 qualifying gas carriers by EEOI, at the 48th percentile. The dashed line is the type median, 27.9; this vessel reported 26.9.
EEOI divides emissions by transport work, which for this vessel and year was 318,553,120 tonne-miles over 31,492 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 12.3% higher than in 2022, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2023 to 2025, emissions rose 346.3% and CO₂ per nautical mile fell 4.1%.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
- 8,709 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.49 t
- Under EU ETS
- 4,625 t, 54% of total
Laden voyages2025
- CO₂ on laden voyages
- 7,902 t, 92% of total
- Fuel, laden
- 2,517 t
- CO₂ per nm, laden
- 250.9 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Observed movementsAIS · Norwegian waters
- First seen
- 16 Jul 2025
- Last seen
- 16 Sep 2025
- Days observed
- 3
- Positions
- 78
- Median speed
- 14.9 kn
Its recorded positions span 58.0°N to 58.2°N and 4.5°E to 5.5°E.
9 hourly points from 78 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
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.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2022–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 3 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.