Navalyze · LNG carrier · Ship

MARAN GAS ULYSSES

IMO: 9709491
Type: LNG carrier
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EIV 6.30 g CO₂/t·nm
Fuel (estimated): Mostly LNG

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

Report year

2020 at a glance

From the 2020 THETIS-MRV report.

Fuel kg/nm

272

LNG carrier median 297 kg/nm (−8%)

CO₂ per transport work (volume)

6.79

g CO₂/m³·nm · LNG carrier median 10.7 (−37%)

Average speed

14.3 kn

LNG carrier median 14.7 kn (−3%)

Fuel per day at sea

93.4 t/day

Fuel consumed

8,426 t

CO₂ emitted

23,215 t

Distance sailed

30,957 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,165 h

90 days, 25% 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 175 kg/nm · median 190 (−8%)

152Ranks 119 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 4.98 g CO₂/m³·nm · median 7.12 (−30%)

5.06Ranks 34 of 386, lowest first16.1

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2020

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 ports4%
From the EU48%
Into the EU31%
At berth in the EU17%

Fuel burned laden

–

Not reported

CO₂ at berth

4,014 t

17.3% 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 ULYSSES
LNG carrier median

150.0200.0250.0300.0350.0

’182018’202020’212021’222022’232023’242024’252025

Average speed, kn

MARAN GAS ULYSSES
LNG carrier median

10.012.014.016.0

’182018’202020’212021’222022’232023’242024’252025

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

MARAN GAS ULYSSES
LNG carrier median

4.06.08.010.012.0

’182018’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.8 kn	−2%	−14%	−18%	+4%	1.8 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.5 kn	−10%	−7%	−60%	−24%	0.5 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.0 kn	−13%	−12%	+96%	−19%	Same speed, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.6 kn	+28%	+34%	+425%	+9%	0.6 kn faster, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.1 kn	−35%	−35%	−74%	+5%	Same speed, fuel per mile down 35%; better than speed alone explains (hull, engine or trade).
2018→2020	+3.4 kn	+2%	+34%	+232%	−17%	3.4 kn faster, fuel per mile up 2%; 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
2025LNG	MARAN GAS MARITIME INC.	4,726	12,672	26,991	1,993	13.5	175	–	96%
2024LNG	MARAN GAS MARITIME INC.	5,879	15,742	32,782	2,137	15.3	179	–	98%
2023LNG / alt.	not published	16,279	44,946	81,963	5,520	14.8	199	–	–
2022LNG / alt.	not published	9,486	26,842	41,766	2,822	14.8	227	–	–
2021LNG / alt.	not published	1,408	3,879	7,961	561	14.2	177	–	–
2020LNG / alt.	not published	8,426	23,215	30,957	2,165	14.3	272	–	–
2018LNG / alt.	not published	2,475	6,830	9,318	853	10.9	266	–	–

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.	4.98	7.12	−30%	34 of 386	ABS	A
2024LNG	MARAN GAS MARITIME INC.	4.81	7.39	−35%	42 of 312	ABS	A
2023LNG / alt.	not published	6.31	9.10	−31%	73 of 355	ABS	A
2022LNG / alt.	not published	7.80	10.4	−25%	122 of 379	ABS	A
2021LNG / alt.	not published	7.14	10.5	−32%	68 of 289	ABS	A
2020LNG / alt.	not published	6.79	10.7	−37%	30 of 267	ABS	A
2018LNG / alt.	not published	8.15	10.9	−25%	40 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.