Other ship types (Offshore) · Norway flag · built 2015

AURORA STORM: CO₂ emissions 2025

IMO 9722510 MMSI 257734000EU ETS

CO₂ reported 2025: 566 t
Fuel burned: 177 t
Time at sea: 436 h
Emitted at berth: 9% of total
Share of year under way: 5%
Gross tonnage: 3,636

AURORA STORM against its type

Built in 2015, it is 4 years newer than the median offshore vessel on this register, which was built in 2011 (410 vessels with a known build year). At 3,636 gross tonnage it is smaller than 56% 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 23 other vessels here, 15 of them offshore vessels.

Its 566 t of CO₂ for 2025 is 86% below the median of 4,049 t among the 390 offshore vessels on this register that reported for 2025. Per nautical mile it emitted 248.4 kg CO₂, 29% below the type median of 348.3 kg. It logged 436 hours at sea against a median of 3,550 hours for its type that year. 8.7% of its 2025 emissions were at berth; the median for offshore vessels was 6.4%. Of the 6 sister ships 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	566	177	—	436	49	248.4	—	not ranked

Vessel particulars

IMO number: 9722510
MMSI: 257734000
Ship type: Other ship types (Offshore)
Gross tonnage: 3,636
Length overall: 83.4 m
Beam: 18.0 m
Year built: 2015
Flag state: Norway per EU MRV 2025
Builder: Ulstein Verft
Port of registry: KRISTIANSAND MRV 2025
Ice class: IC
Efficiency ranking: Not ranked: transport work below the floor (2025)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-31
Compliance document expires: 2027-06-30

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 575 t
Methane (CH₄): 0.01 t
Nitrous oxide (N₂O): 0.03 t
Under EU ETS: 478 t, 85% of total

Observed movementsAIS · Norwegian waters

First seen: 18 Sep 2025
Last seen: 12 Dec 2025
Days observed: 82
Positions: 2,936
Median speed: 10.0 kn

Its recorded positions span 58.2°N to 61.7°N and 4.4°E to 5.7°E.

400 hourly points from 2,936 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.