Navalyze · LNG carrier · Ship

FLEX AURORA

IMO: 9857365
Type: LNG carrier
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 4.70 g CO₂/t·nm
Fuel (estimated): Mostly LNG

ISM company (DoC holder) in 2025: Flex LNG Fleet Management AS

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

200

LNG carrier median 231 kg/nm (−13%)

CO₂ per transport work (volume)

5.70

g CO₂/m³·nm · LNG carrier median 9.10 (−37%)

Average speed

16.0 kn

LNG carrier median 14.2 kn (+13%)

Fuel per day at sea

76.7 t/day

Fuel consumed

12,207 t

CO₂ emitted

32,715 t

Distance sailed

61,081 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,819 h

159 days, 44% 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 180 kg/nm · median 190 (−6%)

152Ranks 143 of 386, lowest first319

Average speedThis ship 14.1 kn · median 14.4 (−2%)

11.2Faster than 43% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 6.69 g CO₂/m³·nm · median 7.12 (−6%)

5.06Ranks 174 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 ports0%
From the EU43%
Into the EU55%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

563 t

1.7% 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

FLEX AURORA
LNG carrier median

100.0150.0200.0250.0300.0

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

Average speed, kn

FLEX AURORA
LNG carrier median

12.014.016.018.0

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

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

FLEX AURORA
LNG carrier median

4.06.08.010.012.0

’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	+1.3 kn	−11%	−2%	+296%	−29%	1.3 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2023→2024	−3.2 kn	+1%	−19%	−68%	+66%	3.2 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.3 kn	+2%	+11%	+17%	−37%	1.3 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.4 kn	+39%	+35%	+146%	+83%	0.4 kn slower, fuel per mile up 39%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−2.3 kn	−31%	−40%	+96%	−35%	2.3 kn slower, fuel per mile down 31%; 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	Flex LNG Fleet Management AS	14,052	38,365	78,136	5,538	14.1	180	–	–
2024LNG	Flex LNG Fleet Management AS	3,986	10,775	19,733	1,547	12.8	202	–	–
2023LNG / alt.	not published	12,207	32,715	61,081	3,819	16.0	200	–	–
2022LNG / alt.	not published	10,249	29,597	52,402	3,564	14.7	196	–	–
2021LNG / alt.	not published	3,011	8,306	21,335	1,411	15.1	141	–	–
2020LNG / alt.	not published	2,212	6,104	10,870	626	17.4	204	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025LNG	Flex LNG Fleet Management AS	6.69	7.12	−6%	174 of 386	DNV	B+C
2024LNG	Flex LNG Fleet Management AS	9.44	7.39	+28%	206 of 312	DNV	A+B+C
2023LNG / alt.	not published	5.70	9.10	−37%	44 of 355	DNV	A+C
2022LNG / alt.	not published	9.11	10.4	−12%	160 of 379	DNV	A+C
2021LNG / alt.	not published	4.99	10.5	−52%	17 of 289	DNV	A+C
2020LNG / alt.	not published	7.67	10.7	−28%	49 of 267	DNV	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.