Navalyze · Bulk carrier · Ship

RB ARIANA

IMO: 9743980
Type: Bulk carrier
Average cargo carried: 14,206 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEDI 3.25 g CO₂/t·nm

ISM company (DoC holder) in 2025: RUBICON MARITIME (UK) LIMITED

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 14,206 t of cargo on average.

Fuel kg/nm

93.8

Bulk carrier median 82.6 kg/nm (+14%)

CO₂ per transport work (cargo)

20.7

g CO₂/t·nm · Bulk carrier median 7.90 (+161%)

Average speed

9.3 kn

Bulk carrier median 10.7 kn (−13%)

Fuel per day at sea

20.9 t/day

Fuel consumed

1,112 t

CO₂ emitted

3,475 t

3,529 t CO₂eq incl. CH₄ and N₂O

Distance sailed

11,845 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,274 h

53 days, 15% 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 93.8 kg/nm · median 82.6 (+14%)

61.0Ranks 2,607 of 3,611, lowest first114

Average speedThis ship 9.3 kn · median 10.7 (−13%)

8.8Faster than 15% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 20.7 g CO₂/t·nm · median 7.90 (+161%)

4.80Ranks 3,387 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 ports5%
From the EU73%
Into the EU19%
At berth in the EU2%

54% of this ship's CO₂ falls under the EU ETS (1,875 t).

Fuel burned laden

–

Not reported

CO₂ at berth

85 t

2.4% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+54 t

+1.6% 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

RB ARIANA
Bulk carrier median

80.090.0100.0110.0

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

Average speed, kn

RB ARIANA
Bulk carrier median

9.010.011.012.0

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

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

RB ARIANA
Bulk carrier median

5.010.015.020.025.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.7 kn	−1%	−8%	−34%	–	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.5 kn	+7%	−7%	+57%	–	1.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.4 kn	−17%	−14%	−55%	−10%	0.4 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2020→2022	−0.7 kn	+6%	−1%	−14%	−14%	0.7 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.0 kn	+2%	+24%	+22%	+60%	2.0 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.8 kn	+10%	−7%	+82%	−36%	1.8 kn slower, fuel per mile up 10%; 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	RUBICON MARITIME (UK) LIMITED	1,112	3,475	11,845	1,274	9.3	93.8	20.7	–
2024	RB BRITISH MARINE (UK) LIMITED	1,688	5,282	17,862	1,783	10.0	94.5	–	–
2023	not published	1,006	3,156	11,364	988	11.5	88.5	8.52	–
2022	not published	2,714	8,484	25,396	2,292	11.1	107	9.44	–
2020	not published	2,966	9,275	29,378	2,484	11.8	101	11.0	64%
2019	not published	2,383	7,460	24,069	2,461	9.8	99.0	6.88	73%
2018	not published	1,187	3,702	13,236	1,139	11.6	89.7	10.7	60%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	RUBICON MARITIME (UK) LIMITED	20.7	7.90	+161%	3,387 of 3,611	ClassNK	A
2024	RB BRITISH MARINE (UK) LIMITED	–	–	–	–	ClassNK	A
2023	not published	8.52	8.27	+3%	1,880 of 3,548	ClassNK	A
2022	not published	9.44	8.71	+8%	2,290 of 3,968	ClassNK	A
2020	not published	11.0	8.24	+33%	2,385 of 3,150	Lloyd's Register	C
2019	not published	6.88	8.38	−18%	1,058 of 3,360	Lloyd's Register	C
2018	not published	10.7	8.50	+26%	2,426 of 3,384	Lloyd's Register	–

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.