Navalyze · LNG carrier · Ship

COOL RIDER

IMO: 9333591
Type: LNG carrier
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 7.30 g CO₂/t·nm
Former names: BRITISH EMERALD, KMARIN EMERALD

ISM company (DoC holder) in 2025: Thenamaris LNG Inc · part of Thenamaris

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

230

LNG carrier median 231 kg/nm (−0%)

CO₂ per transport work (volume)

10.3

g CO₂/m³·nm · LNG carrier median 9.10 (+14%)

Average speed

11.5 kn

LNG carrier median 14.2 kn (−19%)

Fuel per day at sea

63.5 t/day

Fuel consumed

13,369 t

CO₂ emitted

37,926 t

Distance sailed

58,226 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,055 h

211 days, 58% of the year

Within the LNG carrier fleet, 2023

Set against all 355 LNG carrier ships with a full-year 2023 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 230 kg/nm · median 231 (−0%)

167Ranks 175 of 355, lowest first359

Average speedThis ship 11.5 kn · median 14.2 (−19%)

10.7Faster than 16% of LNG carrier ships16.0

CO₂ per transport work (volume)This ship 10.3 g CO₂/m³·nm · median 9.10 (+14%)

5.47Ranks 213 of 355, lowest first17.9

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2023

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 EU51%
Into the EU48%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

402 t

1.1% 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

COOL RIDER
LNG carrier median

200.0250.0300.0350.0

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

Average speed, kn

COOL RIDER
LNG carrier median

8.010.012.014.016.018.0

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

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

COOL RIDER
LNG carrier median

5.010.015.020.025.0

’182018’192019’202020’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2025	–	–	–	–	–
2022→2023	+0.3 kn	−33%	−31%	+192%	+28%	0.3 kn faster, fuel per mile down 33%; better than speed alone explains (hull, engine or trade).
2021→2022	−5.6 kn	+28%	−15%	+92%	–	5.6 kn slower, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+2.2 kn	−5%	+9%	−78%	–	2.2 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2019→2020	+5.1 kn	+34%	+106%	+390%	−51%	5.1 kn faster, fuel per mile up 34%; better than speed alone explains (hull, engine or trade).
2018→2019	−6.7 kn	−35%	−62%	−55%	+178%	6.7 kn slower, fuel per mile down 35%; worse than speed alone explains (fouling, weather, loading 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
2025	Thenamaris LNG Inc	0	0	–	0	–	–	–	–
2023LNG / alt.	not published	13,369	37,926	58,226	5,055	11.5	230	–	–
2022LNG / alt.	not published	6,872	19,091	19,939	1,784	11.2	345	–	–
2021LNG / alt.	not published	2,794	7,971	10,381	620	16.8	269	–	–
2020LNG / alt.	not published	13,406	36,994	47,378	3,246	14.6	283	–	–
2019LNG / alt.	not published	2,039	5,674	9,670	1,019	9.5	211	–	–
2018LNG / alt.	not published	6,990	19,250	21,481	1,322	16.2	325	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025	Thenamaris LNG Inc	–	–	–	–	RINA	B+C
2023LNG / alt.	not published	10.3	9.10	+14%	213 of 355	RINA	B+C
2022LNG / alt.	not published	8.06	10.4	−22%	134 of 379	RINA	B+C
2021LNG / alt.	not published	–	–	–	–	Lloyd's Register	B+C
2020LNG / alt.	not published	12.0	10.7	+12%	168 of 267	Lloyd's Register	B+C
2019LNG / alt.	not published	24.2	10.9	+123%	228 of 248	ABS	–
2018LNG / alt.	not published	8.73	10.9	−20%	46 of 197	ABS	A+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.