Navalyze · LNG carrier · Ship

MARAN GAS ASCLEPIUS

IMO: 9302499
Type: LNG carrier
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EIV 10.48 g CO₂/t·nm
Fuel (estimated): Mostly LNG

ISM company (DoC holder) in 2025: MARAN GAS MARITIME INC. · part of Maran

Report year

2019 at a glance

From the 2019 THETIS-MRV report.

Fuel kg/nm

338

LNG carrier median 308 kg/nm (+10%)

CO₂ per transport work (volume)

13.5

g CO₂/m³·nm · LNG carrier median 10.9 (+24%)

Average speed

13.5 kn

LNG carrier median 13.5 kn (+0%)

Fuel per day at sea

109.7 t/day

Fuel consumed

14,627 t

CO₂ emitted

42,362 t

Distance sailed

43,243 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,201 h

133 days, 37% 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 284 kg/nm · median 190 (+49%)

152Ranks 307 of 386, lowest first319

Average speedThis ship 13.5 kn · median 14.4 (−6%)

11.2Faster than 29% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 11.3 g CO₂/m³·nm · median 7.12 (+59%)

5.06Ranks 320 of 386, lowest first16.1

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2019

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 EU48%
Into the EU49%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

1,063 t

2.5% 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

MARAN GAS ASCLEPIUS
LNG carrier median

150.0200.0250.0300.0350.0400.0

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

Average speed, kn

MARAN GAS ASCLEPIUS
LNG carrier median

11.012.013.014.015.0

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

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

MARAN GAS ASCLEPIUS
LNG carrier median

5.010.015.020.025.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2025	−0.7 kn	−10%	−14%	+4%	−13%	0.7 kn slower, fuel per mile down 10%; in line with the speed change.
2022→2023	+0.1 kn	−2%	−1%	+129%	+4%	Same speed, fuel per mile flat.
2021→2022	+1.0 kn	−14%	−8%	−72%	−25%	1.0 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.9 kn	+3%	+20%	+26%	−28%	1.9 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2019→2020	−2.3 kn	+7%	−11%	−38%	+71%	2.3 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.7 kn	−9%	−13%	−2%	−12%	0.7 kn slower, fuel per mile down 9%; in line with the speed change.

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	MARAN GAS MARITIME INC.	6,522	17,999	22,983	1,699	13.5	284	–	99%
2023LNG / alt.	not published	6,943	20,020	22,056	1,548	14.2	315	–	–
2022LNG / alt.	not published	3,082	9,056	9,645	683	14.1	320	–	–
2021	not published	12,594	37,168	33,846	2,579	13.1	372	–	–
2020LNG / alt.	not published	9,748	28,576	26,965	2,401	11.2	362	–	–
2019LNG / alt.	not published	14,627	42,362	43,243	3,201	13.5	338	–	–
2018LNG / alt.	not published	16,412	47,779	44,225	3,112	14.2	371	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025LNG	MARAN GAS MARITIME INC.	11.3	7.12	+59%	320 of 386	ABS	A
2023LNG / alt.	not published	13.0	9.10	+43%	283 of 355	ABS	A
2022LNG / alt.	not published	12.5	10.4	+21%	255 of 379	ABS	A
2021	not published	16.7	10.5	+59%	247 of 289	ABS	A
2020LNG / alt.	not published	23.0	10.7	+115%	252 of 267	ABS	A
2019LNG / alt.	not published	13.5	10.9	+24%	174 of 248	ABS	A
2018LNG / alt.	not published	15.2	10.9	+39%	161 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.