Navalyze · LNG carrier · Ship

COOL RUNNER

IMO: 9636797
Type: LNG carrier
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 6.84 g CO₂/t·nm
Fuel (estimated): Mostly LNG

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

256

LNG carrier median 231 kg/nm (+11%)

CO₂ per transport work (volume)

11.6

g CO₂/m³·nm · LNG carrier median 9.10 (+27%)

Average speed

13.3 kn

LNG carrier median 14.2 kn (−6%)

Fuel per day at sea

81.7 t/day

Fuel consumed

19,883 t

CO₂ emitted

55,895 t

Distance sailed

77,592 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,840 h

243 days, 67% 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 196 kg/nm · median 190 (+3%)

152Ranks 214 of 386, lowest first319

Average speedThis ship 10.5 kn · median 14.4 (−27%)

11.2Faster than 8% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 10.2 g CO₂/m³·nm · median 7.12 (+43%)

5.06Ranks 298 of 386, lowest first16.1

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 ports2%
From the EU58%
Into the EU39%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

654 t

1.2% 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 RUNNER
LNG carrier median

150.0200.0250.0300.0350.0

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

Average speed, kn

COOL RUNNER
LNG carrier median

8.010.012.014.016.0

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

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

COOL RUNNER
LNG carrier median

5.010.015.020.025.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−2.4 kn	−21%	−36%	+54%	+3%	2.4 kn slower, fuel per mile down 21%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.4 kn	−3%	−6%	−54%	−14%	0.4 kn slower, fuel per mile down 3%; in line with the speed change.
2022→2023	+1.4 kn	+16%	+29%	+28%	+1%	1.4 kn faster, fuel per mile up 16%; better than speed alone explains (hull, engine or trade).
2021→2022	−3.4 kn	−1%	−23%	+61%	–	3.4 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+6.4 kn	−7%	+62%	+12%	–	6.4 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2019→2020	−3.9 kn	−5%	−34%	+31%	−64%	3.9 kn slower, fuel per mile down 5%; 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
2025LNG	Thenamaris LNG Inc	10,752	29,295	54,826	5,221	10.5	196	–	–
2024LNG	Thenamaris LNG Inc	8,795	24,662	35,539	2,753	12.9	248	–	–
2023LNG / alt.	not published	19,883	55,895	77,592	5,840	13.3	256	–	–
2022LNG / alt.	not published	13,385	38,898	60,742	5,086	11.9	220	–	–
2021LNG / alt.	not published	8,371	24,150	37,691	2,461	15.3	222	–	–
2020LNG / alt.	not published	8,009	22,129	33,685	3,805	8.9	238	–	–
2019LNG / alt.	not published	6,450	18,836	25,780	2,017	12.8	250	52.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025LNG	Thenamaris LNG Inc	10.2	7.12	+43%	298 of 386	RINA	B+C
2024LNG	Thenamaris LNG Inc	9.89	7.39	+34%	217 of 312	RINA	B+C
2023LNG / alt.	not published	11.6	9.10	+27%	255 of 355	RINA	B+C
2022LNG / alt.	not published	11.4	10.4	+10%	225 of 379	RINA	B+C
2021LNG / alt.	not published	–	–	–	–	RINA	B+C
2020LNG / alt.	not published	8.14	10.7	−24%	58 of 267	RINA	B+C
2019LNG / alt.	not published	22.6	10.9	+108%	224 of 248	RINA	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.