Navalyze · LNG carrier · Ship

RIBERA DEL DUERO KNUTSEN

IMO: 9477593
Type: LNG carrier
Flag (estimated): Norway
Port of registry: Haugesund
Technical efficiency: EEXI 6.13 g CO₂/t·nm
Ice class: IA
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

299

LNG carrier median 257 kg/nm (+17%)

CO₂ per transport work (volume)

9.99

g CO₂/m³·nm · LNG carrier median 10.5 (−4%)

Average speed

15.2 kn

LNG carrier median 14.6 kn (+4%)

Fuel per day at sea

109.4 t/day

Fuel consumed

18,708 t

CO₂ emitted

51,628 t

Distance sailed

62,519 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,106 h

171 days, 47% 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 310 kg/nm · median 190 (+63%)

152Ranks 337 of 386, lowest first319

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

11.2Faster than 54% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 10.6 g CO₂/m³·nm · median 7.12 (+49%)

5.06Ranks 311 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 EU40%
Into the EU59%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

387 t

0.8% 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

RIBERA DEL DUERO KNUTSEN
LNG carrier median

0.0100.0200.0300.0400.0

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

Average speed, kn

RIBERA DEL DUERO KNUTSEN
LNG carrier median

10.012.014.016.018.0

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

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

RIBERA DEL DUERO KNUTSEN
LNG carrier median

0.020.040.060.0

’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	−1.7 kn	+1%	−9%	−45%	+4%	1.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.4 kn	−5%	−2%	+69%	+7%	0.4 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2022→2023	+1.0 kn	+3%	+10%	+36%	−11%	1.0 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.3 kn	+4%	+2%	−17%	+7%	Same speed, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.2 kn	+3%	+2%	+79%	−18%	Same speed, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.4 kn	+21%	+43%	−30%	+151%	2.4 kn faster, fuel per mile up 21%; 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	20,445	56,522	65,932	4,512	14.6	310	–	–
2024LNG	Knutsen OAS Shipping AS	36,691	99,396	119,870	7,332	16.3	306	–	–
2023LNG / alt.	not published	22,788	63,194	70,802	4,446	15.9	322	–	–
2022LNG / alt.	not published	16,298	45,178	52,189	3,511	14.9	312	–	–
2021LNG / alt.	not published	18,708	51,628	62,519	4,106	15.2	299	–	–
2020LNG / alt.	not published	10,143	27,988	34,986	2,275	15.4	290	12.2	–
2019LNG / alt.	not published	11,921	33,655	49,641	3,816	13.0	240	4.86	–

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	10.6	7.12	+49%	311 of 386	DNV	A+C
2024LNG	Knutsen OAS Shipping AS	10.2	7.39	+38%	223 of 312	Lloyd's Register	–
2023LNG / alt.	not published	9.48	9.10	+4%	187 of 355	Lloyd's Register	B
2022LNG / alt.	not published	10.7	10.4	+3%	204 of 379	Lloyd's Register	B
2021LNG / alt.	not published	9.99	10.5	−4%	137 of 289	Lloyd's Register	B
2020LNG / alt.	not published	12.2	42.3	−71%	19 of 339	Lloyd's Register	B
2019LNG / alt.	not published	4.86	45.9	−89%	2 of 331	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.