Navalyze · LNG carrier · Ship

COOL RANGER

IMO: 9333606
Type: LNG carrier
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 7.28 g CO₂/t·nm
Former names: BRITISH RUBY, TRISTAR RUBY

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

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

307

LNG carrier median 323 kg/nm (−5%)

CO₂ per transport work (volume)

12.7

g CO₂/m³·nm · LNG carrier median 10.9 (+17%)

Average speed

9.6 kn

LNG carrier median 13.7 kn (−30%)

Fuel per day at sea

70.5 t/day

Fuel consumed

5,980 t

CO₂ emitted

17,097 t

Distance sailed

19,487 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,036 h

85 days, 23% of the year

Within the LNG carrier fleet, 2021

Set against all 289 LNG carrier ships with a full-year 2021 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 290 kg/nm · median 257 (+13%)

171Ranks 175 of 289, lowest first378

Average speedThis ship 14.5 kn · median 14.6 (−1%)

11.4Faster than 46% of LNG carrier ships16.7

CO₂ per transport work (volume)This ship 9.10 g CO₂/m³·nm · median 10.5 (−13%)

5.77Ranks 121 of 289, lowest first20.3

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2018

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 EU44%
Into the EU52%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

549 t

3.2% 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 RANGER
LNG carrier median

250.0300.0350.0400.0450.0

’182018’192019’202020’212021’252025

Average speed, kn

COOL RANGER
LNG carrier median

8.010.012.014.016.0

’182018’192019’202020’212021’252025

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

COOL RANGER
LNG carrier median

0.010.020.030.040.0

’182018’192019’202020’212021

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2021→2025	–	–	–	–	–
2020→2021	+1.2 kn	−28%	−22%	−36%	+77%	1.2 kn faster, fuel per mile down 28%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.9 kn	−4%	−16%	+33%	−86%	1.9 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+5.6 kn	+38%	+118%	+29%	+188%	5.6 kn faster, fuel per mile up 38%; 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
2025	Thenamaris LNG Inc	0	0	–	0	–	–	–	–
2021LNG / alt.	not published	6,212	17,127	21,413	1,480	14.5	290	–	–
2020LNG / alt.	not published	13,574	37,437	33,458	2,512	13.3	406	–	–
2019LNG / alt.	not published	10,648	29,323	25,171	1,661	15.2	423	–	–
2018LNG / alt.	not published	5,980	17,097	19,487	2,036	9.6	307	–	–

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
2021LNG / alt.	not published	9.10	10.5	−13%	121 of 289	DNV	A+C
2020LNG / alt.	not published	5.15	10.7	−52%	6 of 267	DNV	A+C
2019LNG / alt.	not published	36.8	10.9	+238%	237 of 248	ABS	–
2018LNG / alt.	not published	12.7	10.9	+17%	137 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.