Navalyze · LNG carrier · Ship

SEAPEAK MARIB

IMO: 9336749
Type: LNG carrier
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 7.39 g CO₂/t·nm
Fuel (estimated): Mostly LNG
Former names: MARIB SPIRIT

ISM company (DoC holder) in 2025: Seapeak Maritime Limited · part of Seapeak

Report year

2021 at a glance

From the 2021 THETIS-MRV report.

Fuel kg/nm

293

LNG carrier median 257 kg/nm (+14%)

CO₂ per transport work (volume)

11.2

g CO₂/m³·nm · LNG carrier median 10.5 (+7%)

Average speed

16.3 kn

LNG carrier median 14.6 kn (+12%)

Fuel per day at sea

114.5 t/day

Fuel consumed

12,478 t

CO₂ emitted

34,400 t

Distance sailed

42,584 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,616 h

109 days, 30% 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 245 kg/nm · median 190 (+29%)

152Ranks 286 of 386, lowest first319

Average speedThis ship 16.2 kn · median 14.4 (+13%)

11.2Faster than 93% of LNG carrier ships15.9

CO₂ per transport work (volume)This ship 7.58 g CO₂/m³·nm · median 7.12 (+6%)

5.06Ranks 213 of 386, lowest first16.1

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2021

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 EU49%
Into the EU49%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

574 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

SEAPEAK MARIB
LNG carrier median

150.0200.0250.0300.0350.0

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

Average speed, kn

SEAPEAK MARIB
LNG carrier median

10.012.014.016.018.0

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

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

SEAPEAK MARIB
LNG carrier median

6.08.010.012.014.0

’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	+1.3 kn	−7%	+1%	+42%	−36%	1.3 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2022→2023	+4.1 kn	−14%	+19%	+5%	+11%	4.1 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2021→2022	−5.5 kn	+5%	−31%	−23%	−4%	5.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.7 kn	+10%	+14%	+18%	−1%	0.7 kn faster, fuel per mile up 10%; in line with the speed change.
2019→2020	+0.9 kn	−9%	−3%	+61%	+9%	0.9 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2018→2019	+1.0 kn	−8%	−2%	−21%	−17%	1.0 kn faster, fuel per mile down 8%; 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	Seapeak Maritime Limited	11,959	33,098	48,854	3,023	16.2	245	–	–
2023LNG / alt.	not published	9,081	24,962	34,501	2,313	14.9	263	–	–
2022LNG / alt.	not published	10,091	28,615	32,924	3,054	10.8	307	–	–
2021LNG / alt.	not published	12,478	34,400	42,584	2,616	16.3	293	–	–
2020LNG / alt.	not published	9,662	26,642	36,145	2,311	15.6	267	–	–
2019LNG / alt.	not published	6,595	18,174	22,456	1,529	14.7	294	–	–
2018LNG / alt.	not published	9,154	25,256	28,556	2,083	13.7	321	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2025LNG	Seapeak Maritime Limited	7.58	7.12	+6%	213 of 386	DNV	A+C
2023LNG / alt.	not published	11.9	9.10	+30%	261 of 355	DNV	A+C
2022LNG / alt.	not published	10.7	10.4	+3%	206 of 379	DNV	A+C
2021LNG / alt.	not published	11.2	10.5	+7%	156 of 289	DNV	A+C
2020LNG / alt.	not published	11.3	10.7	+6%	155 of 267	DNV	A+C
2019LNG / alt.	not published	10.4	10.9	−5%	115 of 248	DNV	A+C
2018LNG / alt.	not published	12.4	10.9	+14%	132 of 197	DNV	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.