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SIEM DAY

IMO
9660102
Type
Other ship types (Offshore)
Port of registry
Limassol

ISM company (DoC holder) in 2025: Aurora Offshore Management AS

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2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile
220.6 kg/nm
CO₂ per transport work (cargo)
–
g CO₂/t·nm
Average speed
2.0 kn
Fuel per day at sea
10.4 t/day
0.43 t/h as reported
Fuel consumed
2,859 t
CO₂ emitted
9,164 t
9,305 t CO₂eq incl. CH₄ and N₂O
Distance sailed
12,956 nm
CO₂ ÷ CO₂ per mile
Time at sea
6,593 h
275 days, 75% of the year

Where the emissions happen, 2025

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

  • Between EU ports48%
  • From the EU26%
  • Into the EU23%
  • At berth in the EU2%

69% of this ship's CO₂ falls under the EU ETS (6,278 t).

Fuel burned laden
–
Not reported
CO₂ at berth
2.1%
Alongside in EU ports
Methane (CH₄)
0.1 t
Mainly from LNG; small for oil
CO₂eq ÷ CO₂
1.015
Uplift from CH₄ and N₂O, counted in full from 2026

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

YearISM companyFuel tCO₂ tDistance nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025Aurora Offshore Management AS2,8599,16412,9566,5932.0220.6––

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmOffshore medianvs OffshoreRankVerifierMethods
2025Aurora Offshore Management AS––––DNVA+B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Offshore ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's offshore ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.

SIEM DAY (IMO 9660102): fuel, emissions and EU ETS 2025–2025 | Navalyze