Navalyze · Chemical tanker · Ship

THUN VENERN

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

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 7,998 t of cargo on average.

Fuel per mile

52.5 kg/nm

Chemical tanker median 79.7 kg/nm (−34%)

CO₂ per transport work (cargo)

18.58

g CO₂/t·nm · Chemical tanker median 15.04 (+24%)

Average speed

10.5 kn

Chemical tanker median 11.1 kn (−5%)

Fuel per day at sea

13.2 t/day

Fuel consumed

3,356 t

CO₂ emitted

9,506 t

11,553 t CO₂eq incl. CH₄ and N₂O

Distance sailed

63,966 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,082 h

253 days, 69% 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 52.5 kg/nm · median 79.7 (−34%)

52.8Ranks 139 of 1,460, lowest first111.0

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 18.58 g CO₂/t·nm · median 15.04 (+24%)

7.93Ranks 894 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 ports91%
From the EU0%
Into the EU0%
At berth in the EU9%

100% of this ship's CO₂ falls under the EU ETS (9,506 t).

Fuel burned laden

58%

42% in ballast or unladen

CO₂ at berth

8.9%

Alongside in EU ports

Methane (CH₄)

69.0 t

LNG engines slip unburnt methane

CO₂eq ÷ CO₂

1.215

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

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	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025LNG	Furetank Rederi AB	3,356	9,506	63,966	6,082	10.5	52.5	18.58	58%
2024LNG	Furetank Rederi AB	3,401	9,462	66,175	5,917	11.2	51.4	17.54	–
2023LNG	not published	2,226	6,374	43,047	4,107	10.5	51.7	18.49	–
2022	not published	1,748	5,469	30,544	2,999	10.2	57.2	21.77	–
2021LNG	not published	1,958	5,699	40,682	4,052	10.0	48.1	15.66	–
2020LNG	not published	2,103	6,013	43,576	4,381	9.9	48.3	20.45	–
2019LNG	not published	2,377	6,753	45,905	6,207	7.4	51.8	15.86	–
2018	not published	779	2,377	13,113	1,433	9.2	59.4	16.26	–

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	18.58	15.04	+24%	894 of 1,460	Bureau Veritas	C
2024LNG	Furetank Rederi AB	17.54	16.73	+5%	683 of 1,274	Bureau Veritas	C
2023LNG	not published	18.49	16.23	+14%	737 of 1,314	Bureau Veritas	B+C
2022	not published	21.77	16.06	+36%	960 of 1,409	Bureau Veritas	B+C
2021LNG	not published	15.66	16.69	−6%	604 of 1,343	Bureau Veritas	B+C
2020LNG	not published	20.45	16.16	+27%	863 of 1,312	Bureau Veritas	B+C
2019LNG	not published	15.86	17.32	−8%	569 of 1,321	Bureau Veritas	B+C
2018	not published	16.26	17.14	−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.