Other ship types (Offshore) · Isle of Man flag · built 2011

SEVEN OCEANIC: CO₂ emissions 2025

IMO 9468205 MMSI 232026676EU ETS

CO₂ reported 2025: 7,914 t
Fuel burned: 2,468 t
Time at sea: 2,046 h
Emitted at berth: 8% of total
Share of year under way: 23%
Gross tonnage: 16,511

SEVEN OCEANIC against its type

Built in 2011, it is the same age as the median offshore vessel on this register (build year 2011, 410 vessels with a known build year). At 16,511 gross tonnage it is larger than 90% of the other 396 offshore vessels with a recorded tonnage. It is one of 19 offshore vessels here under the Isle of Man flag, 4.6% of the 413 on the register. No other vessel on this register is recorded with the same builder. Subsea 7 is linked to 6 vessels on this register.

Its 7,914 t of CO₂ for 2025 is 2.0 times the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 737.5 kg CO₂, 2.1 times the type median of 348.3 kg. It logged 2,046 hours at sea against a median of 3,550 hours for its type that year. 8.0% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. Of the 8 comparable vessels listed below with a 2025 return, 3 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	7,914	2,468	—	2,046	632	737.5	—	—

Vessel particulars

IMO number: 9468205
MMSI: 232026676
Call sign: MGYG7
Ship type: Other ship types (Offshore)
Gross tonnage: 16,511
Length overall: 157.0 m
Beam: 28.0 m
Year built: 2011
Flag state: Isle of Man per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list United Kingdom. The flag shown is from the newest official source, the EU MRV return for 2025.
Builder: STX Europe
Port of registry: Douglas MRV 2025
Operator: Subsea 7
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-30
Compliance document expires: 2027-06-30

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 8,035 t
Methane (CH₄): 0.12 t
Nitrous oxide (N₂O): 0.44 t
Under EU ETS: 6,884 t, 87% of total

Observed movementsAIS · Norwegian waters

First seen: 08 Oct 2025
Last seen: 02 Jul 2026
Days observed: 82
Positions: 4,682
Median speed: 11.8 kn

Its recorded positions span 58.0°N to 64.0°N and 4.4°E to 10.8°E.

400 hourly points from 4,682 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.