Navalyze · Chemical tanker · Ship

OTTO H

IMO: 9749374
Type: Chemical tanker
Average cargo carried: 10,591 t
Technical efficiency: EEDI 5.67 g CO₂/t·nm

ISM company (DoC holder) in 2025: FLEET MANAGEMENT LIMITED

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 10,591 t of cargo on average.

Fuel per mile

65.6 kg/nm

Chemical tanker median 79.7 kg/nm (−18%)

CO₂ per transport work (cargo)

19.50

g CO₂/t·nm · Chemical tanker median 15.04 (+30%)

Average speed

11.4 kn

Chemical tanker median 11.1 kn (+3%)

Fuel per day at sea

17.9 t/day

Fuel consumed

1,259 t

CO₂ emitted

3,965 t

4,027 t CO₂eq incl. CH₄ and N₂O

Distance sailed

19,200 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,688 h

70 days, 19% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker 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 per mileThis ship 65.6 kg/nm · median 79.7 (−18%)

52.8Ranks 390 of 1,460, lowest first111.0

Average speedThis ship 11.4 kn · median 11.1 (+3%)

8.8Faster than 59% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 19.50 g CO₂/t·nm · median 15.04 (+30%)

7.93Ranks 923 of 1,460, lowest first40.17

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2025

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 EU86%
Into the EU13%
At berth in the EU2%

51% of this ship's CO₂ falls under the EU ETS (2,019 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1.8%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

OTTO H
Chemical tanker median

60.070.080.090.0100.0

’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

OTTO H
Chemical tanker median

10.011.012.013.014.0

’192019’202020’212021’222022’232023’242024’252025

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

OTTO H
Chemical tanker median

10.015.020.025.030.0

’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+0.3 kn	−5%	−2%	−39%	+13%	0.3 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.1 kn	−2%	−11%	+115%	+27%	1.1 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.7 kn	−25%	−29%	+201%	−53%	0.7 kn slower, fuel per mile down 25%; better than speed alone explains (hull, engine or trade).
2021→2022	+1.5 kn	+22%	+37%	−51%	+2%	1.5 kn faster, fuel per mile up 22%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.2 kn	+13%	+11%	−73%	+155%	Same speed, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−2.0 kn	+5%	−11%	+229%	−15%	2.0 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	FLEET MANAGEMENT LIMITED	1,259	3,965	19,200	1,688	11.4	65.6	19.50	–
2024	FLEET MANAGEMENT LIMITED	2,170	6,824	31,525	2,849	11.1	68.8	17.30	–
2023	not published	1,032	3,269	14,682	1,207	12.2	70.3	13.67	–
2022	not published	456	1,453	4,871	379	12.9	93.7	29.24	–
2021	not published	767	2,422	9,956	874	11.4	77.0	28.67	–
2020	not published	2,508	7,836	36,876	3,168	11.6	68.0	11.24	–
2019	not published	729	2,287	11,214	823	13.6	65.0	13.15	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	FLEET MANAGEMENT LIMITED	19.50	15.04	+30%	923 of 1,460	ClassNK	C
2024	FLEET MANAGEMENT LIMITED	17.30	16.73	+3%	665 of 1,274	ClassNK	C
2023	not published	13.67	16.23	−16%	489 of 1,314	ClassNK	C
2022	not published	29.24	16.06	+82%	1,117 of 1,409	ClassNK	C
2021	not published	28.67	16.69	+72%	1,037 of 1,343	ClassNK	C
2020	not published	11.24	16.16	−30%	268 of 1,312	ClassNK	C
2019	not published	13.15	17.32	−24%	391 of 1,321	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker 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 chemical tanker 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.