Navalyze · Chemical tanker · Ship

ZAHRA

IMO: 9917866
Type: Chemical tanker
Average cargo carried: 34,298 t
Flag (estimated): Saudi Arabia
Port of registry: Dammam
Technical efficiency: EEDI 4.12 g CO₂/t·nm

ISM company (DoC holder) in 2025: Bahri Ship Management DMCC

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 31,593 t of cargo on average.

Fuel kg/nm

73.3

Chemical tanker median 81.9 kg/nm (−11%)

CO₂ per transport work (cargo)

7.30

g CO₂/t·nm · Chemical tanker median 16.2 (−55%)

Average speed

12.7 kn

Chemical tanker median 11.2 kn (+13%)

Fuel per day at sea

22.4 t/day

Fuel consumed

509 t

CO₂ emitted

1,601 t

Distance sailed

6,943 nm

CO₂ ÷ CO₂ per mile

Time at sea

545 h

23 days, 6% 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 92.5 kg/nm · median 79.7 (+16%)

52.8Ranks 1,042 of 1,460, lowest first111

Average speedThis ship 11.8 kn · median 11.1 (+6%)

8.8Faster than 72% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 8.52 g CO₂/t·nm · median 15.0 (−43%)

7.93Ranks 203 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 ports4%
From the EU77%
Into the EU3%
At berth in the EU16%

Fuel burned laden

424 t

83% of all fuel; 17% in ballast or unladen

CO₂ at berth

252 t

15.7% 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

ZAHRA
Chemical tanker median

70.075.080.085.090.095.0

’232023’252025

Average speed, kn

ZAHRA
Chemical tanker median

11.011.512.012.513.0

’232023’252025

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

ZAHRA
Chemical tanker median

5.07.510.012.515.017.5

’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2025	−0.9 kn	+26%	+17%	+86%	+17%	0.9 kn slower, fuel per mile up 26%; 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	Bahri Ship Management DMCC	1,196	3,779	12,933	1,100	11.8	92.5	8.52	91%
2023	not published	509	1,601	6,943	545	12.7	73.3	7.30	83%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Bahri Ship Management DMCC	8.52	15.0	−43%	203 of 1,460	ABS	B+C
2023	not published	7.30	16.2	−55%	43 of 1,314	ABS	B+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.