Navalyze · LNG carrier · Ship

RIOJA KNUTSEN

IMO: 9721736
Type: LNG carrier
Flag (estimated): Spain
Port of registry: Santa Cruz De Tenerife
Technical efficiency: EEXI 4.76 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

248

LNG carrier median 257 kg/nm (−4%)

CO₂ per transport work (volume)

11.0

g CO₂/m³·nm · LNG carrier median 10.5 (+5%)

Average speed

13.4 kn

LNG carrier median 14.6 kn (−8%)

Fuel per day at sea

79.8 t/day

Fuel consumed

7,147 t

CO₂ emitted

21,285 t

Distance sailed

28,867 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,149 h

90 days, 25% 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 207 kg/nm · median 190 (+9%)

152Ranks 244 of 386, lowest first319

Average speedThis ship 14.1 kn · median 14.4 (−2%)

11.2Faster than 43% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 7.59 g CO₂/m³·nm · median 7.12 (+7%)

5.06Ranks 215 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 ports4%
From the EU46%
Into the EU44%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

1,232 t

5.8% 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

RIOJA KNUTSEN
LNG carrier median

150.0200.0250.0300.0350.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

RIOJA KNUTSEN
LNG carrier median

12.013.014.015.016.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (volume), g CO₂/m³·nm

RIOJA KNUTSEN
LNG carrier median

6.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.3 kn	−1%	−10%	+0%	+1%	1.3 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.3 kn	+10%	+12%	+1%	+12%	0.3 kn faster, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+2.3 kn	−7%	+10%	+8%	−11%	2.3 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.6 kn	−17%	−21%	+242%	−31%	0.6 kn slower, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.5 kn	+16%	−2%	−28%	+21%	2.5 kn slower, fuel per mile up 16%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.4 kn	+13%	+34%	+61%	−2%	2.4 kn faster, fuel per mile up 13%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.4 kn	−19%	−26%	−14%	+20%	1.4 kn slower, fuel per mile down 19%; in line with the speed change.

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	22,410	64,586	108,069	7,662	14.1	207	–	–
2024LNG	Knutsen OAS Shipping AS	22,685	63,718	107,913	7,011	15.4	210	–	–
2023LNG / alt.	not published	20,381	57,675	106,898	7,079	15.1	191	–	–
2022LNG / alt.	not published	20,264	59,218	98,726	7,707	12.8	205	–	–
2021	not published	7,147	21,285	28,867	2,149	13.4	248	–	–
2020LNG / alt.	not published	8,564	23,958	40,250	2,526	15.9	213	–	–
2019LNG / alt.	not published	4,703	13,154	25,047	1,853	13.5	188	–	–
2018LNG / alt.	not published	6,702	18,922	29,028	1,945	14.9	231	–	–

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	7.59	7.12	+7%	215 of 386	DNV	A+C
2024LNG	Knutsen OAS Shipping AS	7.52	7.39	+2%	160 of 312	Lloyd's Register	–
2023LNG / alt.	not published	6.69	9.10	−26%	93 of 355	Lloyd's Register	B+C
2022LNG / alt.	not published	7.51	10.4	−28%	114 of 379	Lloyd's Register	B+C
2021	not published	11.0	10.5	+5%	153 of 289	Lloyd's Register	B+C
2020LNG / alt.	not published	9.06	10.7	−15%	83 of 267	Lloyd's Register	B+C
2019LNG / alt.	not published	9.20	10.9	−15%	70 of 248	Lloyd's Register	–
2018LNG / alt.	not published	7.65	10.9	−30%	36 of 197	Lloyd's Register	–

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.