Navalyze · LNG carrier · Ship

RIAS BAIXAS KNUTSEN

IMO: 9825568
Type: LNG carrier
Flag (estimated): Spain
Port of registry: Santa Cruz De Tenerife
Technical efficiency: EEXI 4.60 g CO₂/t·nm
Fuel (estimated): Mostly LNG

ISM company (DoC holder) in 2025: Knutsen OAS Shipping AS

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

251

LNG carrier median 257 kg/nm (−2%)

CO₂ per transport work (volume)

7.28

g CO₂/m³·nm · LNG carrier median 10.5 (−30%)

Average speed

15.1 kn

LNG carrier median 14.6 kn (+3%)

Fuel per day at sea

91.0 t/day

Fuel consumed

10,518 t

CO₂ emitted

29,641 t

Distance sailed

41,857 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,773 h

116 days, 32% of the year

Within the LNG carrier fleet, 2025

Set against all 386 LNG carrier ships with a full-year 2025 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 180 kg/nm · median 190 (−6%)

152Ranks 142 of 386, lowest first319

Average speedThis ship 14.6 kn · median 14.4 (+1%)

11.2Faster than 53% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 6.53 g CO₂/m³·nm · median 7.12 (−8%)

5.06Ranks 166 of 386, lowest first16.1

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2021

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 ports0%
From the EU29%
Into the EU70%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

412 t

1.4% 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 LNG carrier median is the middle ship of all LNG carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

RIAS BAIXAS KNUTSEN
LNG carrier median

50.0100.0150.0200.0250.0300.0

’202020’212021’222022’232023’242024’252025

Average speed, kn

RIAS BAIXAS KNUTSEN
LNG carrier median

8.010.012.014.016.0

’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

RIAS BAIXAS KNUTSEN
LNG carrier median

0.010.020.030.040.050.0

’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.0 kn	−12%	−12%	+24%	−3%	Same speed, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2023→2024	+3.3 kn	−3%	+24%	+29%	−5%	3.3 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2022→2023	+3.3 kn	−17%	+18%	−7%	−34%	3.3 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2021→2022	−7.1 kn	+2%	−46%	+28%	+48%	7.1 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+3.6 kn	+44%	+88%	+45%	+9%	3.6 kn faster, fuel per mile up 44%; 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
2025LNG	Knutsen OAS Shipping AS	14,287	41,136	79,579	5,454	14.6	180	–	–
2024LNG	Knutsen OAS Shipping AS	13,167	36,846	64,241	4,407	14.6	205	–	–
2023LNG / alt.	not published	10,542	30,224	49,713	4,380	11.3	212	–	–
2022	not published	13,674	40,854	53,490	6,684	8.0	256	–	–
2021LNG / alt.	not published	10,518	29,641	41,857	2,773	15.1	251	–	–
2020LNG / alt.	not published	5,042	14,120	28,917	2,505	11.5	174	6.67	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025LNG	Knutsen OAS Shipping AS	6.53	7.12	−8%	166 of 386	DNV	A+C
2024LNG	Knutsen OAS Shipping AS	6.76	7.39	−9%	137 of 312	Lloyd's Register	–
2023LNG / alt.	not published	7.13	9.10	−22%	115 of 355	Lloyd's Register	B+C
2022	not published	10.8	10.4	+4%	211 of 379	Lloyd's Register	B+C
2021LNG / alt.	not published	7.28	10.5	−30%	70 of 289	Lloyd's Register	B+C
2020LNG / alt.	not published	6.67	42.3	−84%	3 of 339	Lloyd's Register	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. LNG carrier ships are benchmarked on CO₂ per transport work (volume) (TW), in g CO₂/m³·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 LNG carrier 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.