Navalyze · Chemical tanker · Ship

HW OTTO

IMO: 9394040
Type: Chemical tanker
Port of registry: Monrovia
Technical efficiency: EIV 7.08 g CO₂/t·nm
Former names: NORIENT SATURN

ISM company (DoC holder) in 2025: Pea Maritime S.A.

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

–

CO₂ per transport work (cargo)

–

g CO₂/t·nm

Average speed

–

Fuel per day at sea

–

Fuel consumed

0 t

CO₂ emitted

0 t

0 t CO₂eq incl. CH₄ and N₂O

Distance sailed

–

CO₂ ÷ CO₂ per mile

Time at sea

0 h

0 days, 0% of the year

Within the chemical tanker fleet, 2024

Set against all 1,274 chemical tanker ships with a full-year 2024 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 94.8 kg/nm · median 80.8 (+17%)

53.8Ranks 922 of 1,274, lowest first110.8

Average speedThis ship 9.8 kn · median 11.0 (−11%)

8.7Faster than 22% of chemical tanker ships12.5

CO₂ per transport work (cargo)This ship 11.84 g CO₂/t·nm · median 16.73 (−29%)

8.47Ranks 389 of 1,274, lowest first41.97

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.

The voyage split is not in this year's report.

Fuel burned laden

–

Not reported

CO₂ at berth

–

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

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

HW OTTO
Chemical tanker median

80.0100.0120.0140.0160.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

HW OTTO
Chemical tanker median

2.04.06.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

HW OTTO
Chemical tanker median

10.015.020.025.0

’182018’192019’202020’212021’222022’232023’242024

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	–	–	–	–	–
2023→2024	+5.2 kn	−11%	+91%	+79%	−26%	5.2 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2022→2023	−5.5 kn	−4%	−57%	−81%	−5%	5.5 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.9 kn	+5%	+14%	+49%	+1%	0.9 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.5 kn	−11%	+6%	−12%	+2%	1.5 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2019→2020	+3.9 kn	−17%	+66%	+145%	−28%	3.9 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2018→2019	−2.5 kn	+28%	−23%	+101%	+9%	2.5 kn slower, fuel per mile up 28%; 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	Pea Maritime S.A.	0	0	–	0	–	–	–	–
2024	Pea Maritime S.A.	1,250	3,899	13,185	1,347	9.8	94.8	11.84	–
2023	not published	786	2,485	7,364	1,613	4.6	106.7	16.09	–
2022	not published	4,250	13,461	38,254	3,798	10.1	111.1	16.94	63%
2021	not published	2,727	8,561	25,759	2,789	9.2	105.9	16.83	54%
2020	not published	3,491	11,074	29,221	3,799	7.7	119.5	16.50	–
2019	not published	1,726	5,401	11,944	3,122	3.8	144.5	22.90	–
2018	not published	674	2,112	5,944	938	6.3	113.3	20.96	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Pea Maritime S.A.	–	–	–	–	Lloyd's Register	A+B+C
2024	Pea Maritime S.A.	11.84	16.73	−29%	389 of 1,274	Lloyd's Register	B
2023	not published	16.09	16.23	−1%	650 of 1,314	Dromon Bureau of Shipping	B
2022	not published	16.94	16.06	+5%	750 of 1,409	ABS	C
2021	not published	16.83	16.69	+1%	685 of 1,343	ABS	C
2020	not published	16.50	16.16	+2%	674 of 1,312	Dromon Bureau of Shipping	B
2019	not published	22.90	17.32	+32%	897 of 1,321	Dromon Bureau of Shipping	B
2018	not published	20.96	17.14	+22%	840 of 1,294	Dromon Bureau of Shipping	B

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.