Navalyze · General cargo · Ship

DONA BLE

IMO: 9142540
Type: General cargo ship
Average cargo carried: 4,251 t
Port of registry: Panama
Technical efficiency: EEXI 10.77 g CO₂/t·nm
Ice class: IA
Former names: BOZOK

ISM company (DoC holder) in 2025: San Nikolla Shipmanagement Co

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,251 t of cargo on average.

Fuel per mile

47.0 kg/nm

General cargo median 35.3 kg/nm (+33%)

CO₂ per transport work (dwt)

35.38

g CO₂/dwt·nm · General cargo median 25.45 (+39%)

Average speed

6.6 kn

General cargo median 9.3 kn (−29%)

Fuel per day at sea

7.5 t/day

Fuel consumed

615 t

CO₂ emitted

1,968 t

1,999 t CO₂eq incl. CH₄ and N₂O

Distance sailed

13,087 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,980 h

83 days, 23% of the year

Within the general cargo fleet, 2025

Set against all 2,706 general cargo 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 47.0 kg/nm · median 35.3 (+33%)

17.4Ranks 1,805 of 2,706, lowest first78.8

Average speedThis ship 6.6 kn · median 9.3 (−29%)

7.0Faster than 7% of general cargo ships12.1

CO₂ per transport work (dwt)This ship 35.38 g CO₂/dwt·nm · median 25.45 (+39%)

10.14Ranks 2,043 of 2,706, lowest first52.37

Middle 80% of shipsMiddle 50%General cargo 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 ports20%
From the EU41%
Into the EU35%
At berth in the EU4%

62% of this ship's CO₂ falls under the EU ETS (1,220 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.9%

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The General cargo median is the middle ship of all general cargo ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

DONA BLE
General cargo median

30.040.050.060.0

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

Average speed, kn

DONA BLE
General cargo median

6.08.010.012.0

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

CO₂ per transport work (dwt), g CO₂/dwt·nm

DONA BLE
General cargo median

10.020.030.040.050.0

’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	−1.5 kn	−15%	−31%	−33%	−8%	1.5 kn slower, fuel per mile down 15%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.2 kn	+11%	+7%	−27%	+16%	Same speed, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.5 kn	+3%	−13%	+144%	−26%	1.5 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.3 kn	+3%	+1%	−64%	+46%	Same speed, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.8 kn	+1%	−7%	+20%	−11%	0.8 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+4.4 kn	−10%	+50%	−4%	−12%	4.4 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.1 kn	+5%	−10%	−19%	+48%	1.1 kn slower, fuel per mile up 5%; 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
2025	San Nikolla Shipmanagement Co	615	1,968	13,087	1,980	6.6	47.0	35.38	–
2024	San Nikolla Shipmanagement Co	1,085	3,407	19,494	2,416	8.1	55.6	–	–
2023	not published	1,338	4,200	26,606	3,191	8.3	50.3	33.26	–
2022	not published	535	1,680	10,914	1,111	9.8	49.0	44.76	–
2021	not published	1,433	4,533	30,181	2,992	10.1	47.5	30.65	–
2020	not published	1,186	3,708	25,135	2,307	10.9	47.2	–	60%
2019	not published	1,381	4,318	26,287	4,029	6.5	52.5	–	–
2018	not published	1,621	5,089	32,556	4,269	7.6	49.8	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	San Nikolla Shipmanagement Co	35.38	25.45	+39%	2,043 of 2,706	EMICERT	A
2024	San Nikolla Shipmanagement Co	38.47	19.25	+100%	991 of 1,111	EMICERT	A
2023	not published	33.26	20.67	+61%	883 of 1,045	EMICERT	A
2022	not published	44.76	21.57	+108%	934 of 1,034	EMICERT	A
2021	not published	30.65	22.70	+35%	880 of 1,142	EMICERT	A
2020	not published	34.32	24.50	+40%	895 of 1,167	Bureau Veritas	B
2019	not published	38.94	24.96	+56%	916 of 1,154	Bureau Veritas	B
2018	not published	26.26	24.89	+6%	572 of 1,044	Bureau Veritas	B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. General cargo ships are benchmarked on CO₂ per transport work (dwt) (TW), in g CO₂/dwt·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 general cargo 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.