Navalyze · Chemical tanker · Ship

STOLT LERK

IMO: 9719252
Type: Chemical tanker
Average cargo carried: 24,877 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 4.83 g CO₂/t·nm

ISM company (DoC holder) in 2025: Stolt Tankers BV

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 14,942 t of cargo on average.

Fuel kg/nm

94.2

Chemical tanker median 83.0 kg/nm (+13%)

CO₂ per transport work (cargo)

19.8

g CO₂/t·nm · Chemical tanker median 16.7 (+19%)

Average speed

11.6 kn

Chemical tanker median 11.2 kn (+4%)

Fuel per day at sea

26.3 t/day

Fuel consumed

3,145 t

CO₂ emitted

9,866 t

Distance sailed

33,366 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,874 h

120 days, 33% 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 kg/nmThis ship 77.5 kg/nm · median 79.7 (−3%)

52.8Ranks 660 of 1,460, lowest first111

Average speedThis ship 12.0 kn · median 11.1 (+8%)

8.8Faster than 80% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 9.74 g CO₂/t·nm · median 15.0 (−35%)

7.93Ranks 329 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker 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 ports14%
From the EU28%
Into the EU43%
At berth in the EU14%

Fuel burned laden

–

Not reported

CO₂ at berth

1,408 t

14.3% 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 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 kg/nm

STOLT LERK
Chemical tanker median

70.080.090.0100.0110.0

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

Average speed, kn

STOLT LERK
Chemical tanker median

10.011.012.013.0

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

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

STOLT LERK
Chemical tanker median

5.010.015.020.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.5 kn	−6%	−1%	−34%	−14%	0.5 kn faster, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.3 kn	−11%	−13%	+8%	−31%	0.3 kn slower, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.6 kn	+26%	+32%	+154%	+56%	0.6 kn faster, fuel per mile up 26%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.4 kn	−23%	−25%	−67%	−47%	0.4 kn slower, fuel per mile down 23%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.8 kn	−8%	−14%	−1%	+25%	0.8 kn slower, fuel per mile down 8%; in line with the speed change.
2019→2020	+0.1 kn	+9%	+10%	−6%	+20%	Same speed, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.6 kn	+15%	+22%	−11%	−7%	0.6 kn faster, fuel per mile up 15%; in line with the speed change.

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
2025	Stolt Tankers BV	1,539	4,814	19,868	1,657	12.0	77.5	9.74	–
2024	Stolt Tankers BV	2,478	7,702	30,106	2,629	11.5	82.3	11.4	–
2023	not published	2,563	8,063	27,841	2,366	11.8	92.1	16.5	–
2022	not published	799	2,503	10,955	976	11.2	73.0	10.6	–
2021	not published	3,145	9,866	33,366	2,874	11.6	94.2	19.8	–
2020	not published	3,463	10,884	33,652	2,709	12.4	103	15.8	–
2019	not published	3,371	10,561	35,842	2,912	12.3	94.0	13.2	–
2018	not published	3,264	10,229	40,047	3,434	11.7	81.5	14.2	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Stolt Tankers BV	9.74	15.0	−35%	329 of 1,460	DNV	B
2024	Stolt Tankers BV	11.4	16.7	−32%	350 of 1,274	DNV	B
2023	not published	16.5	16.2	+2%	665 of 1,314	DNV	B
2022	not published	10.6	16.1	−34%	262 of 1,409	DNV	B
2021	not published	19.8	16.7	+19%	830 of 1,343	DNV	B
2020	not published	15.8	16.2	−2%	630 of 1,312	Lloyd's Register	B
2019	not published	13.2	17.3	−24%	391 of 1,321	Lloyd's Register	B
2018	not published	14.2	17.1	−17%	458 of 1,294	Lloyd's Register	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.