Navalyze · General cargo · Ship

STAR MAIA

IMO: 9189940
Type: General cargo ship
Flag (estimated): Isle of Man
Port of registry: Douglas
Technical efficiency: EEXI 6.65 g CO₂/t·nm
Former names: MOBILANA

ISM company (DoC holder) in 2025: Grieg Shipping II AS · part of Grieg

Report year

2018 at a glance

From the 2018 THETIS-MRV report.

Fuel kg/nm

90.1

General cargo median 58.4 kg/nm (+54%)

CO₂ per transport work (dwt)

14.3

g CO₂/dwt·nm · General cargo median 24.9 (−42%)

Average speed

12.4 kn

General cargo median 9.7 kn (+28%)

Fuel per day at sea

26.9 t/day

Fuel consumed

3,259 t

CO₂ emitted

10,202 t

Distance sailed

36,180 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,910 h

121 days, 33% of the year

Within the general cargo fleet, 2025

Set against all 2,723 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 kg/nmThis ship 84.4 kg/nm · median 35.2 (+140%)

17.4Ranks 2,549 of 2,723, lowest first78.8

Average speedThis ship 11.5 kn · median 9.3 (+24%)

6.9Faster than 85% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 7.02 g CO₂/dwt·nm · median 25.5 (−72%)

10.2Ranks 74 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2018

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 ports5%
From the EU48%
Into the EU44%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

333 t

3.3% 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 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 kg/nm

STAR MAIA
General cargo median

20.040.060.080.0100.0

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

Average speed, kn

STAR MAIA
General cargo median

9.010.011.012.013.0

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

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

STAR MAIA
General cargo median

5.010.015.020.025.030.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.2 kn	+1%	−9%	+52%	−45%	1.2 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.1 kn	−7%	−6%	−36%	+93%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.7 kn	+3%	+9%	+54%	−26%	0.7 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2020→2022	−0.5 kn	−2%	−5%	−31%	−5%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.3 kn	+1%	−2%	+277%	−19%	Same speed, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.3 kn	−3%	−1%	−81%	−19%	Same speed, fuel per mile down 3%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Grieg Shipping II AS	2,214	6,988	26,231	2,286	11.5	84.4	–	–
2024	Grieg Shipping II AS	1,442	4,496	17,302	1,361	12.7	83.3	–	–
2023	not published	2,402	7,586	26,895	2,136	12.6	89.3	–	–
2022	not published	1,511	4,731	17,507	1,469	11.9	86.3	–	–
2020	not published	2,230	6,964	25,385	2,048	12.4	87.8	–	–
2019	not published	586	1,826	6,741	531	12.7	87.0	–	–
2018	not published	3,259	10,202	36,180	2,910	12.4	90.1	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	Grieg Shipping II AS	7.02	25.5	−72%	74 of 2,723	DNV	B
2024	Grieg Shipping II AS	12.7	19.3	−34%	336 of 1,111	DNV	B
2023	not published	6.59	20.7	−68%	54 of 1,045	DNV	B
2022	not published	8.91	21.6	−59%	101 of 1,034	DNV	B
2020	not published	9.36	24.5	−62%	74 of 1,167	DNV	B
2019	not published	11.6	25.0	−54%	120 of 1,154	DNV	B
2018	not published	14.3	24.9	−42%	174 of 1,044	DNV	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.