Navalyze · Chemical tanker · Ship

SHANNON STAR

IMO: 9503926
Type: Chemical tanker
Average cargo carried: 4,539 t
Port of registry: Valletta
Technical efficiency: EEXI 10.60 g CO₂/t·nm

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,539 t of cargo on average.

Fuel per mile

72.5 kg/nm

Chemical tanker median 79.7 kg/nm (−9%)

CO₂ per transport work (cargo)

51.06

g CO₂/t·nm · Chemical tanker median 15.04 (+239%)

Average speed

9.8 kn

Chemical tanker median 11.1 kn (−12%)

Fuel per day at sea

17.1 t/day

Fuel consumed

2,029 t

CO₂ emitted

6,482 t

6,582 t CO₂eq incl. CH₄ and N₂O

Distance sailed

27,972 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,845 h

119 days, 32% 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 72.5 kg/nm · median 79.7 (−9%)

52.8Ranks 548 of 1,460, lowest first111.0

Average speedThis ship 9.8 kn · median 11.1 (−12%)

8.8Faster than 21% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 51.06 g CO₂/t·nm · median 15.04 (+239%)

7.93Ranks 1,388 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 ports48%
From the EU26%
Into the EU14%
At berth in the EU12%

80% of this ship's CO₂ falls under the EU ETS (5,187 t).

Fuel burned laden

–

Not reported

CO₂ at berth

12.2%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

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

SHANNON STAR
Chemical tanker median

50.060.070.080.090.0100.0

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

Average speed, kn

SHANNON STAR
Chemical tanker median

6.08.010.012.0

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

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

SHANNON STAR
Chemical tanker median

10.020.030.040.050.060.0

’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	+0.1 kn	−3%	−1%	−4%	+10%	Same speed, fuel per mile down 3%; in line with the speed change.
2023→2024	−0.1 kn	+1%	+0%	−10%	+6%	Same speed, fuel per mile flat.
2022→2023	+0.4 kn	+11%	+15%	−9%	+19%	0.4 kn faster, fuel per mile up 11%; in line with the speed change.
2021→2022	+0.7 kn	+5%	+13%	−2%	+14%	0.7 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.5 kn	+7%	+2%	−23%	+4%	0.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.4 kn	−16%	+13%	+14%	−3%	2.4 kn faster, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.5 kn	−0%	+8%	+2%	−25%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine 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
2025	VALLOEBY SHANNON STAR LTD	2,029	6,482	27,972	2,845	9.8	72.5	51.06	–
2024	VALLOEBY SHANNON STAR LTD	2,166	6,942	29,124	3,010	9.7	74.4	46.50	–
2023	not published	2,379	7,608	32,301	3,304	9.8	73.7	43.82	–
2022	not published	2,350	7,487	35,392	3,769	9.4	66.4	36.71	–
2021	not published	2,290	7,275	36,121	4,148	8.7	63.4	32.28	–
2020	not published	2,793	8,875	47,157	5,150	9.2	59.2	31.17	–
2019	not published	2,908	9,186	41,466	6,091	6.8	70.1	32.24	–
2018	not published	2,872	9,062	40,794	6,518	6.3	70.4	42.84	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	VALLOEBY SHANNON STAR LTD	51.06	15.04	+239%	1,388 of 1,460	DNV	A
2024	VALLOEBY SHANNON STAR LTD	46.50	16.73	+178%	1,175 of 1,274	DNV	A
2023	not published	43.82	16.23	+170%	1,183 of 1,314	DNV	B
2022	not published	36.71	16.06	+129%	1,224 of 1,409	DNV	B
2021	not published	32.28	16.69	+93%	1,101 of 1,343	DNV	B
2020	not published	31.17	16.16	+93%	1,067 of 1,312	DNV	B
2019	not published	32.24	17.32	+86%	1,070 of 1,321	DNV	B
2018	not published	42.84	17.14	+150%	1,156 of 1,294	DNV	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.