Navalyze · Chemical tanker · Ship

CHEM HELEN

IMO: 9340116
Type: Chemical tanker
Average cargo carried: 26,044 t
Port of registry: Monrovia
Technical efficiency: EEXI 5.65 g CO₂/t·nm

ISM company (DoC holder) in 2025: Universal Tankers Corporation Ltd

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 26,044 t of cargo on average.

Fuel per mile

92.9 kg/nm

Chemical tanker median 79.7 kg/nm (+17%)

CO₂ per transport work (cargo)

11.12

g CO₂/t·nm · Chemical tanker median 15.04 (−26%)

Average speed

11.7 kn

Chemical tanker median 11.1 kn (+5%)

Fuel per day at sea

26.1 t/day

Fuel consumed

411 t

CO₂ emitted

1,280 t

1,300 t CO₂eq incl. CH₄ and N₂O

Distance sailed

4,420 nm

CO₂ ÷ CO₂ per mile

Time at sea

377 h

16 days, 4% 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 92.9 kg/nm · median 79.7 (+17%)

52.8Ranks 1,050 of 1,460, lowest first111.0

Average speedThis ship 11.7 kn · median 11.1 (+5%)

8.8Faster than 71% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 11.12 g CO₂/t·nm · median 15.04 (−26%)

7.93Ranks 426 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 EU100%
Into the EU0%
At berth in the EU0%

50% of this ship's CO₂ falls under the EU ETS (643 t).

Fuel burned laden

–

Not reported

CO₂ at berth

0.5%

Alongside in EU ports

Methane (CH₄)

0.0 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

CHEM HELEN
Chemical tanker median

70.080.090.0100.0110.0

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

Average speed, kn

CHEM HELEN
Chemical tanker median

8.09.010.011.012.013.0

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

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

CHEM HELEN
Chemical tanker median

5.010.015.020.025.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+1.7 kn	−1%	+16%	−43%	−49%	1.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	+0.9 kn	−8%	+1%	+70%	−3%	0.9 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2022→2023	−3.7 kn	−2%	−31%	−85%	+91%	3.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.9 kn	+27%	+50%	+9%	+38%	1.9 kn faster, fuel per mile up 27%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.9 kn	−14%	−21%	+16%	−19%	0.9 kn slower, fuel per mile down 14%; in line with the speed change.
2019→2020	+3.0 kn	+0%	+34%	−32%	−9%	3.0 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	−2.7 kn	−12%	−32%	+193%	−39%	2.7 kn slower, fuel per mile down 12%; 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	Universal Tankers Corporation Ltd	411	1,280	4,420	377	11.7	92.9	11.12	–
2024	Universal Tankers Corporation Ltd	725	2,281	7,728	775	10.0	93.8	21.93	–
2023	not published	466	1,456	4,547	501	9.1	102.4	22.71	46%
2022	not published	3,127	9,852	29,953	2,331	12.8	104.4	11.92	88%
2021	not published	2,261	7,138	27,423	2,522	10.9	82.5	8.64	86%
2020	not published	2,264	7,169	23,658	2,002	11.8	95.7	10.70	81%
2019	not published	3,304	10,354	34,661	3,933	8.8	95.3	11.71	100%
2018	not published	1,272	3,973	11,810	1,024	11.5	107.7	19.20	100%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Universal Tankers Corporation Ltd	11.12	15.04	−26%	426 of 1,460	RINA	A
2024	Universal Tankers Corporation Ltd	21.93	16.73	+31%	827 of 1,274	RINA	A
2023	not published	22.71	16.23	+40%	871 of 1,314	RINA	A
2022	not published	11.92	16.06	−26%	392 of 1,409	RINA	A
2021	not published	8.64	16.69	−48%	91 of 1,343	RINA	–
2020	not published	10.70	16.16	−34%	224 of 1,312	RINA	A
2019	not published	11.71	17.32	−32%	297 of 1,321	RINA	A
2018	not published	19.20	17.14	+12%	762 of 1,294	RINA	A

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.