Navalyze · LNG carrier · Ship

COOL RIDER

IMO: 9333591
Type: LNG carrier
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

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

–

CO₂ per transport work (volume)

–

g CO₂/m³·nm

Average speed

–

Fuel per day at sea

–

Fuel consumed

0 t

CO₂ emitted

0 t

0 t CO₂eq incl. CH₄ and N₂O

Distance sailed

–

CO₂ ÷ CO₂ per mile

Time at sea

0 h

0 days, 0% 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 per mileThis ship 229.6 kg/nm · median 230.7 (−0%)

166.5Ranks 175 of 355, lowest first358.9

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

5.47Ranks 213 of 355, lowest first17.94

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2025

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.

The voyage split is not in this year's report.

Fuel burned laden

–

Not reported

CO₂ at berth

–

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, 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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Thenamaris LNG Inc	0	0	–	0	–	–	–	–
2023LNG	not published	13,369	37,926	58,226	5,055	11.5	229.6	–	–
2022LNG	not published	6,872	19,091	19,939	1,784	11.2	344.7	–	–
2021LNG	not published	2,794	7,971	10,381	620	16.8	269.2	–	–
2020LNG	not published	13,406	36,994	47,378	3,246	14.6	282.9	–	–
2019LNG	not published	2,039	5,674	9,670	1,019	9.5	210.8	–	–
2018LNG	not published	6,990	19,250	21,481	1,322	16.2	325.4	–	–

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	not published	10.34	9.10	+14%	213 of 355	RINA	B+C
2022LNG	not published	8.06	10.38	−22%	134 of 379	RINA	B+C
2021LNG	not published	–	–	–	–	Lloyd's Register	B+C
2020LNG	not published	11.96	10.71	+12%	168 of 267	Lloyd's Register	B+C
2019LNG	not published	24.24	10.87	+123%	228 of 248	ABS	–
2018LNG	not published	8.73	10.92	−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.