Navalyze · Chemical tanker · Ship

STOLT CALLUNA

IMO: 9744893
Type: Chemical tanker
Average cargo carried: 15,175 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

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 14,519 t of cargo on average.

Fuel kg/nm

88.1

Chemical tanker median 81.9 kg/nm (+8%)

CO₂ per transport work (cargo)

19.1

g CO₂/t·nm · Chemical tanker median 16.2 (+18%)

Average speed

11.4 kn

Chemical tanker median 11.2 kn (+2%)

Fuel per day at sea

24.1 t/day

Fuel consumed

956 t

CO₂ emitted

3,007 t

Distance sailed

10,851 nm

CO₂ ÷ CO₂ per mile

Time at sea

952 h

40 days, 11% 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 80.3 kg/nm · median 79.7 (+1%)

52.8Ranks 750 of 1,460, lowest first111

Average speedThis ship 11.9 kn · median 11.1 (+7%)

8.8Faster than 77% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 16.7 g CO₂/t·nm · median 15.0 (+11%)

7.93Ranks 807 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2023

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 EU40%
Into the EU42%
At berth in the EU16%

Fuel burned laden

–

Not reported

CO₂ at berth

484 t

16.1% 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 CALLUNA
Chemical tanker median

70.075.080.085.090.095.0

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

Average speed, kn

STOLT CALLUNA
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 CALLUNA
Chemical tanker median

10.012.014.016.018.020.0

’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	−0.8 kn	+13%	+6%	−70%	+48%	0.8 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.3 kn	−19%	−10%	+322%	−41%	1.3 kn faster, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.9 kn	+11%	+3%	−31%	+39%	0.9 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+1.6 kn	−6%	+8%	−57%	−10%	1.6 kn faster, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.5 kn	+7%	−6%	+23%	−7%	1.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.6 kn	−4%	+1%	−0%	−8%	0.6 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.4 kn	−7%	−9%	−14%	+28%	0.4 kn slower, fuel per mile down 7%; 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	1,106	3,482	13,772	1,155	11.9	80.3	16.7	–
2024	Stolt Tankers BV	3,255	10,173	45,797	3,609	12.7	71.1	11.3	–
2023	not published	956	3,007	10,851	952	11.4	88.1	19.1	–
2022	not published	1,248	3,912	15,719	1,277	12.3	79.4	13.7	–
2021	not published	3,101	9,713	36,590	3,420	10.7	84.8	15.3	–
2020	not published	2,355	7,378	29,749	2,430	12.2	79.2	16.5	–
2019	not published	2,478	7,756	29,890	2,570	11.6	82.9	17.9	–
2018	not published	3,109	9,749	34,937	2,923	12.0	89.0	13.9	–

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	16.7	15.0	+11%	807 of 1,460	DNV	B
2024	Stolt Tankers BV	11.3	16.7	−33%	339 of 1,274	DNV	B
2023	not published	19.1	16.2	+18%	757 of 1,314	DNV	B
2022	not published	13.7	16.1	−14%	530 of 1,409	DNV	B
2021	not published	15.3	16.7	−8%	583 of 1,343	DNV	B
2020	not published	16.5	16.2	+2%	677 of 1,312	Lloyd's Register	B
2019	not published	17.9	17.3	+3%	691 of 1,321	Lloyd's Register	B
2018	not published	13.9	17.1	−19%	445 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.