Navalyze · Chemical tanker · Ship

LASCAUX

IMO: 9405746
Type: Chemical tanker
Average cargo carried: 4,334 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 11.40 g CO₂/t·nm

ISM company (DoC holder) in 2025: VALLOEBY LASCAUX LTD · part of Valloeby

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 3,604 t of cargo on average.

Fuel kg/nm

79.2

Chemical tanker median 90.2 kg/nm (−12%)

CO₂ per transport work (cargo)

69.1

g CO₂/t·nm · Chemical tanker median 17.1 (+303%)

Average speed

9.7 kn

Chemical tanker median 10.1 kn (−4%)

Fuel per day at sea

18.5 t/day

Fuel consumed

2,197 t

CO₂ emitted

6,915 t

Distance sailed

27,756 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,853 h

119 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 59.9 kg/nm · median 79.7 (−25%)

52.8Ranks 255 of 1,460, lowest first111

Average speedThis ship 7.9 kn · median 11.1 (−29%)

8.8Faster than 6% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 43.8 g CO₂/t·nm · median 15.0 (+191%)

7.93Ranks 1,343 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2018

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 ports1%
From the EU0%
Into the EU84%
At berth in the EU15%

Fuel burned laden

–

Not reported

CO₂ at berth

1,143 t

16.5% 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

LASCAUX
Chemical tanker median

50.060.070.080.090.0100.0

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

Average speed, kn

LASCAUX
Chemical tanker median

7.08.09.010.011.012.0

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

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

LASCAUX
Chemical tanker median

0.020.040.060.080.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.1 kn	−12%	−12%	−36%	−29%	Same speed, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.6 kn	−3%	−19%	+37%	+12%	1.6 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.8 kn	−4%	−11%	+87%	−5%	0.8 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2022	+0.7 kn	+31%	+40%	−56%	−5%	0.7 kn faster, fuel per mile up 31%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.2 kn	−37%	−29%	+88%	−18%	1.2 kn faster, fuel per mile down 37%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.4 kn	+12%	−4%	−37%	+6%	1.4 kn slower, fuel per mile up 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	VALLOEBY LASCAUX LTD	1,448	4,581	24,161	3,070	7.9	59.9	43.8	–
2024	VALLOEBY LASCAUX LTD	2,553	8,042	37,491	4,780	7.8	68.1	61.4	–
2023	not published	1,913	6,074	27,343	2,912	9.4	70.0	54.7	–
2022	not published	1,063	3,383	14,628	1,438	10.2	72.7	57.4	–
2020	not published	1,839	5,822	33,089	3,492	9.5	55.6	60.6	43%
2019	not published	1,554	4,877	17,556	2,110	8.3	88.5	73.6	–
2018	not published	2,197	6,915	27,756	2,853	9.7	79.2	69.1	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	VALLOEBY LASCAUX LTD	43.8	15.0	+191%	1,343 of 1,460	DNV	B
2024	VALLOEBY LASCAUX LTD	61.4	16.7	+267%	1,236 of 1,274	DNV	B
2023	not published	54.7	16.2	+237%	1,252 of 1,314	Lloyd's Register	B
2022	not published	57.4	16.1	+257%	1,367 of 1,409	Lloyd's Register	B
2020	not published	60.6	16.2	+275%	1,277 of 1,312	Bureau Veritas	A+B
2019	not published	73.6	17.3	+325%	1,300 of 1,321	Bureau Veritas	A+B
2018	not published	69.1	17.1	+303%	1,255 of 1,294	Bureau Veritas	–

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.