Navalyze · Container · Ship

MAERSK BUTON

IMO: 9392925
Type: Container ship
Average cargo carried: 18,362 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EEXI 14.10 g CO₂/t·nm

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 24,712 t of cargo on average.

Fuel kg/nm

182

Container median 186 kg/nm (−2%)

CO₂ per transport work (cargo)

23.2

g CO₂/t·nm · Container median 17.9 (+29%)

Average speed

15.8 kn

Container median 14.1 kn (+12%)

Fuel per day at sea

69.1 t/day

Fuel consumed

8,298 t

CO₂ emitted

26,072 t

Distance sailed

45,555 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,881 h

120 days, 33% of the year

Within the container fleet, 2023

Set against all 1,899 container ships with a full-year 2023 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 131 kg/nm · median 165 (−21%)

77.6Ranks 708 of 1,899, lowest first291

Average speedThis ship 14.6 kn · median 13.2 (+11%)

10.0Faster than 77% of container ships15.4

CO₂ per transport work (cargo)This ship 22.2 g CO₂/t·nm · median 19.4 (+14%)

7.34Ranks 1,096 of 1,899, lowest first51.9

Middle 80% of shipsMiddle 50%Container 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 ports7%
From the EU77%
Into the EU14%
At berth in the EU2%

Fuel burned laden

8,140 t

98% of all fuel; 2% in ballast or unladen

CO₂ at berth

516 t

2.0% 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 Container median is the middle ship of all container ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

MAERSK BUTON
Container median

120.0140.0160.0180.0200.0

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

Average speed, kn

MAERSK BUTON
Container median

13.014.015.016.0

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

CO₂ per transport work (cargo), g CO₂/t·nm

MAERSK BUTON
Container median

15.017.520.022.525.027.5

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	−1.0 kn	−23%	−28%	−25%	−12%	1.0 kn slower, fuel per mile down 23%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.2 kn	−7%	−8%	+29%	+8%	Same speed, fuel per mile down 7%; in line with the speed change.
2020→2021	−0.1 kn	+16%	+15%	−35%	+15%	Same speed, fuel per mile up 16%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.5 kn	+24%	+47%	+102%	+24%	2.5 kn faster, fuel per mile up 24%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.1 kn	−6%	−5%	−35%	−16%	Same speed, fuel per mile down 6%; 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
2023	not published	5,747	17,904	43,901	3,009	14.6	131	22.2	85%
2022	not published	9,951	31,216	58,734	3,758	15.6	169	25.1	98%
2021	not published	8,298	26,072	45,555	2,881	15.8	182	23.2	98%
2020	not published	10,918	34,199	69,738	4,374	15.9	157	20.2	100%
2019	not published	4,364	13,619	34,446	2,568	13.4	127	16.3	100%
2018	not published	7,141	22,270	53,216	3,997	13.3	134	19.4	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2023	not published	22.2	19.4	+14%	1,096 of 1,899	ABS	C
2022	not published	25.1	19.1	+31%	1,148 of 1,825	ABS	C
2021	not published	23.2	17.9	+29%	1,120 of 1,781	ABS	C
2020	not published	20.2	17.6	+15%	1,031 of 1,797	ABS	C
2019	not published	16.3	18.9	−14%	733 of 1,788	ABS	C
2018	not published	19.4	20.2	−4%	800 of 1,705	DNV	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Container ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·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 container 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.