Navalyze · Bulk carrier · Ship

RUBATO

IMO: 9487550
Type: Bulk carrier
Average cargo carried: 18,531 t
Flag (estimated): Liberia (from the 2024 report)
Technical efficiency: EEXI 6.12 g CO₂/t·nm

ISM company (DoC holder) in 2025: United Sails SA

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 18,531 t of cargo on average.

Fuel kg/nm

67.2

Bulk carrier median 82.6 kg/nm (−19%)

CO₂ per transport work (cargo)

11.6

g CO₂/t·nm · Bulk carrier median 7.90 (+46%)

Average speed

6.9 kn

Bulk carrier median 10.7 kn (−36%)

Fuel per day at sea

11.1 t/day

Fuel consumed

310 t

CO₂ emitted

989 t

1,004 t CO₂eq incl. CH₄ and N₂O

Distance sailed

4,611 nm

CO₂ ÷ CO₂ per mile

Time at sea

669 h

28 days, 8% of the year

Within the bulk carrier fleet, 2025

Set against all 3,611 bulk carrier 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 67.2 kg/nm · median 82.6 (−19%)

61.0Ranks 704 of 3,611, lowest first114

Average speedThis ship 6.9 kn · median 10.7 (−36%)

8.8Faster than 3% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 11.6 g CO₂/t·nm · median 7.90 (+46%)

4.80Ranks 2,885 of 3,611, lowest first15.9

Middle 80% of shipsMiddle 50%Bulk carrier medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports0%
From the EU52%
Into the EU39%
At berth in the EU9%

55% of this ship's CO₂ falls under the EU ETS (539 t).

Fuel burned laden

–

Not reported

CO₂ at berth

90 t

9.1% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+15 t

+1.5% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Over the years

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

Fuel kg/nm

RUBATO
Bulk carrier median

60.080.0100.0120.0140.0

’212021’222022’232023’242024’252025

Average speed, kn

RUBATO
Bulk carrier median

5.010.015.020.025.0

’212021’222022’232023’242024’252025

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

RUBATO
Bulk carrier median

5.010.015.020.025.030.0

’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−4.7 kn	+11%	−35%	−50%	+4%	4.7 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−2.0 kn	−32%	−42%	+75%	−36%	2.0 kn slower, fuel per mile down 32%; in line with the speed change.
2022→2023	−10.9 kn	−29%	−61%	−28%	−32%	10.9 kn slower, fuel per mile down 29%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+13.5 kn	+95%	+336%	−25%	+167%	13.5 kn faster, fuel per mile up 95%; 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	United Sails SA	310	989	4,611	669	6.9	67.2	11.6	–
2024	United Sails SA	560	1,745	9,208	792	11.6	60.8	11.1	–
2023	not published	472	1,497	5,261	386	13.6	89.7	17.5	–
2022	not published	922	2,908	7,262	297	24.5	127	25.8	–
2021	not published	633	2,000	9,747	889	11.0	65.0	9.65	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	United Sails SA	11.6	7.90	+46%	2,885 of 3,611	Bureau Veritas	A
2024	United Sails SA	11.1	8.09	+38%	2,363 of 3,089	Bureau Veritas	A
2023	not published	17.5	8.27	+111%	3,197 of 3,548	Bureau Veritas	A
2022	not published	25.8	8.71	+196%	3,841 of 3,968	Bureau Veritas	A
2021	not published	9.65	8.57	+13%	2,149 of 3,466	Bureau Veritas	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier 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 bulk carrier 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.