Navalyze · Passenger · Ship

OASIS OF THE SEAS

IMO: 9383936
Type: Passenger ship
Flag (estimated): Bahamas
Port of registry: Nassau
Technical efficiency: EEXI 7.86 g CO₂/t·nm

ISM company (DoC holder) in 2024: Royal Caribbean Cruises, Ltd. · part of Royal Caribbean Group

Report year

2019 at a glance

From the 2019 THETIS-MRV report.

Fuel kg/nm

593

Passenger median 277 kg/nm (+114%)

CO₂ per transport work (pax)

375

g CO₂/pax·nm · Passenger median 589 (−36%)

Average speed

9.0 kn

Passenger median 12.9 kn (−30%)

Fuel per day at sea

127.8 t/day

Fuel consumed

23,775 t

CO₂ emitted

74,411 t

Distance sailed

40,067 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,465 h

186 days, 51% of the year

Within the passenger fleet, 2024

Set against all 202 passenger ships with a full-year 2024 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 658 kg/nm · median 245 (+169%)

69.4Ranks 202 of 202, lowest first431

Average speedThis ship 15.9 kn · median 13.3 (+20%)

9.8Faster than 90% of passenger ships15.9

CO₂ per transport work (pax)This ship 343 g CO₂/pax·nm · median 618 (−45%)

319Ranks 35 of 202, lowest first1,842

Middle 80% of shipsMiddle 50%Passenger medianThis ship

Where the emissions happen, 2019

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 ports79%
From the EU8%
Into the EU8%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

4,442 t

6.0% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Passenger median is the middle ship of all passenger ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

OASIS OF THE SEAS
Passenger median

200.0400.0600.0800.0

’192019’242024

Average speed, kn

OASIS OF THE SEAS
Passenger median

8.010.012.014.016.0

’192019’242024

CO₂ per transport work (pax), g CO₂/pax·nm

OASIS OF THE SEAS
Passenger median

300400500600700

’192019’242024

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2019→2024	+6.9 kn	+11%	+97%	+12%	−9%	6.9 kn faster, fuel per mile up 11%; better than speed alone explains (hull, engine or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

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

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2024	Royal Caribbean Cruises, Ltd.	29,555	91,992	44,895	2,816	15.9	658	–	–
2019	not published	23,775	74,411	40,067	4,465	9.0	593	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Passenger median	vs Passenger	Rank	Verifier	Methods
2024	Royal Caribbean Cruises, Ltd.	343	618	−45%	35 of 202	DNV	A
2019	not published	375	589	−36%	32 of 177	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Passenger ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·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 passenger 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.