Ship Emissions Register

Passenger ship · Bahamas flag · built 2009

OASIS OF THE SEAS

IMO 9383936 EU ETS2 reporting years

CO₂ reported 2024
91,992 t
Fuel burned
29,555 t
Time at sea
2,816 h
Emitted at berth
21% of total
Share of year under way
32%
Gross tonnage
226,838
OASIS OF THE SEAS
Baldwin040, CC BY-SA 3.0 · File

Vessel particulars

IMO number
9383936
Ship type
Passenger ship
Gross tonnage
226,838
Length overall
360.0 m
Year built
2009
Flag state
Bahamas
Builder
STX Finland
Port of registry
Nassau
Technical efficiency (design)
EEXI (7.86 gCO₂/t·nm)
Operator
Royal Caribbean International, Royal Caribbean International
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2025-04-25
Compliance document expires
2026-06-30

Flag state is derived from the reported port of registry, not reported directly, and reflects the registry at the time of reporting.

Reported CO₂ by year

2019: 74,411 t201974,4112024: 91,992 t202491,992

Between 2019 and 2024 reported CO₂ rose by 23.6%. No return is recorded for 2020, 2021, 2022, 2023, so the series has gaps.

From 2019 to 2024, emissions rose 23.6% and CO₂ per nautical mile rose 10.3%.Distance was not reported for both years, so activity and efficiency cannot be separated here.

Annual returns2019–2024

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2024 91,992 29,555 2,816 19,593 2,049.0
2019 74,411 23,775 4,465 4,443 1,857.2

Where the 2024 emissions occurred

At berthAt berth: 19,593 t19,593Within EEA portsWithin EEA ports: 19,593 t19,593Voyages between EEA portsVoyages between EEA ports: 61,846 t61,846Voyages to an EEA portVoyages to an EEA port: 6,203 t6,203Voyages from an EEA portVoyages from an EEA port: 4,351 t4,351

Methane, nitrous oxide and EU ETS2024

Total CO₂ equivalent
93,443 t
Methane (CH₄)
1.48 t
Nitrous oxide (N₂O)
5.32 t
Under EU ETS
81,362 t, 88% of total

Sources and how to read this

What this page is built on

Reporting years
2
Ranked by efficiency
no
Vessel particulars
5 of 5
Movement data
not observed
Name history
none recorded
Photograph
yes
Sanctions record
none
Inspection record
none in US waters
Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.

Comparable vesselsnearest by tonnage, same type