Other ship types (Offshore) · Norway flag · built 2010
SEA1 RUBY: CO₂ emissions 2025
IMO 9413444 MMSI 257733000EU ETS
- CO₂ reported 2025
- 12,027 t
- Fuel burned
- 3,751 t
- Time at sea
- 3,280 h
- Emitted at berth
- 3% of total
- Share of year under way
- 37%
- Gross tonnage
- 7,558
SEA1 RUBY against its type
Built in 2010, it is 1 year older than the median offshore vessel on this register, which was built in 2011 (410 vessels with a known build year). At 7,558 gross tonnage it is larger than 78% of the other 396 offshore vessels with a recorded tonnage. It is one of 70 offshore vessels here under the Norway flag, 16.9% of the 413 on the register. The same builder is recorded for 9 other vessels here, 8 of them offshore vessels.
Its 12,027 t of CO₂ for 2025 is 3.0 times the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 427.8 kg CO₂, 23% above the type median of 348.3 kg. It logged 3,280 hours at sea against a median of 3,550 hours for its type that year. 2.6% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. Of the 2 sister ships listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2025–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 12,027 | 3,751 | — | 3,280 | 313 | 427.8 | — | — |
Vessel particulars
- IMO number
- 9413444
- MMSI
- 257733000
- Call sign
- LEQY
- Ship type
- Other ship types (Offshore)
- Gross tonnage
- 7,558
- Length overall
- 91.0 m
- Beam
- 22.0 m
- Year built
- 2010
- Flag state
- Norway per EU MRV 2025
- Builder
- Myklebust Verft
- Port of registry
- Kristiansand MRV 2025
- Technical efficiency (design)
- Not Applicable (0 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-04-28
- Compliance document expires
- 2027-06-30
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 12,211 t
- Methane (CH₄)
- 0.19 t
- Nitrous oxide (N₂O)
- 0.68 t
- Under EU ETS
- 9,576 t, 80% of total
Observed movementsAIS · Norwegian waters
- First seen
- 20 Jul 2025
- Last seen
- 27 Jul 2026
- Days observed
- 296
- Positions
- 13,993
- Median speed
- 9.9 kn
Its recorded positions span 58.0°N to 64.0°N and 4.4°E to 9.5°E.
400 hourly points from 13,993 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 2025–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 1 MRV reporting year, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, a name history, 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.