Navalyze · Chemical tanker · Ship

THUN VENERN

IMO: 9739824
Type: Chemical tanker
Average cargo carried: 7,998 t
Flag (estimated): Sweden
Port of registry: LidkÖPing
Technical efficiency: EEDI 4.82 g CO₂/t·nm
Ice class: IA
Fuel (estimated): Mostly LNG

ISM company (DoC holder) in 2025: Furetank Rederi AB

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 8,009 t of cargo on average.

Fuel kg/nm

51.7

Chemical tanker median 81.9 kg/nm (−37%)

CO₂ per transport work (cargo)

18.5

g CO₂/t·nm · Chemical tanker median 16.2 (+14%)

Average speed

10.5 kn

Chemical tanker median 11.2 kn (−6%)

Fuel per day at sea

13.0 t/day

Fuel consumed

2,226 t

CO₂ emitted

6,374 t

Distance sailed

43,047 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,107 h

171 days, 47% 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 52.5 kg/nm · median 79.7 (−34%)

52.8Ranks 139 of 1,460, lowest first111

Average speedThis ship 10.5 kn · median 11.1 (−5%)

8.8Faster than 34% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 18.6 g CO₂/t·nm · median 15.0 (+24%)

7.93Ranks 894 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 ports78%
From the EU5%
Into the EU5%
At berth in the EU12%

Fuel burned laden

–

Not reported

CO₂ at berth

754 t

11.8% 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

THUN VENERN
Chemical tanker median

40.060.080.0100.0

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

Average speed, kn

THUN VENERN
Chemical tanker median

7.08.09.010.011.012.0

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

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

THUN VENERN
Chemical tanker median

14.016.018.020.022.0

’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	−0.7 kn	+2%	−4%	−3%	+6%	0.7 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.7 kn	−1%	+6%	+54%	−5%	0.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	+0.3 kn	−10%	−7%	+41%	−15%	0.3 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.2 kn	+19%	+21%	−25%	+39%	Same speed, fuel per mile up 19%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.1 kn	−0%	+1%	−7%	−23%	Same speed, fuel per mile flat.
2019→2020	+2.5 kn	−7%	+25%	−5%	+29%	2.5 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.8 kn	−13%	−29%	+250%	−2%	1.8 kn slower, fuel per mile down 13%; 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
2025LNG	Furetank Rederi AB	3,356	9,506	63,966	6,082	10.5	52.5	18.6	58%
2024LNG	Furetank Rederi AB	3,401	9,462	66,175	5,917	11.2	51.4	17.5	–
2023LNG / alt.	not published	2,226	6,374	43,047	4,107	10.5	51.7	18.5	–
2022	not published	1,748	5,469	30,544	2,999	10.2	57.2	21.8	–
2021LNG / alt.	not published	1,958	5,699	40,682	4,052	10.0	48.1	15.7	–
2020LNG / alt.	not published	2,103	6,013	43,576	4,381	9.9	48.3	20.5	–
2019LNG / alt.	not published	2,377	6,753	45,905	6,207	7.4	51.8	15.9	–
2018	not published	779	2,377	13,113	1,433	9.2	59.4	16.3	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025LNG	Furetank Rederi AB	18.6	15.0	+24%	894 of 1,460	Bureau Veritas	C
2024LNG	Furetank Rederi AB	17.5	16.7	+5%	683 of 1,274	Bureau Veritas	C
2023LNG / alt.	not published	18.5	16.2	+14%	737 of 1,314	Bureau Veritas	B+C
2022	not published	21.8	16.1	+36%	960 of 1,409	Bureau Veritas	B+C
2021LNG / alt.	not published	15.7	16.7	−6%	604 of 1,343	Bureau Veritas	B+C
2020LNG / alt.	not published	20.5	16.2	+27%	863 of 1,312	Bureau Veritas	B+C
2019LNG / alt.	not published	15.9	17.3	−8%	569 of 1,321	Bureau Veritas	B+C
2018	not published	16.3	17.1	−5%	587 of 1,294	Bureau Veritas	C

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.