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Navalyze · Bulk carrier · Ship

ROYAL NEPTUNE

IMO
9851517
Type
Bulk carrier
Average cargo carried
52,346 t
Flag (estimated)
Panama
Port of registry
Panama
Technical efficiency
EEDI 3.23 g CO₂/t·nm

ISM company (DoC holder) in 2025: LEO OCEAN, S.A.

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2025 at a glance

From the 2025 THETIS-MRV report. Carries about 52,346 t of cargo on average.

Fuel kg/nm
85.5
Bulk carrier median 82.6 kg/nm (+4%)
CO₂ per transport work (cargo)
5.11
g CO₂/t·nm · Bulk carrier median 7.90 (−35%)
Average speed
11.8 kn
Bulk carrier median 10.7 kn (+10%)
Fuel per day at sea
24.2 t/day
Fuel consumed
2,903 t
CO₂ emitted
9,086 t
9,229 t CO₂eq incl. CH₄ and N₂O
Distance sailed
33,969 nm
CO₂ ÷ CO₂ per mile
Time at sea
2,882 h
120 days, 33% 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 85.5 kg/nm · median 82.6 (+4%)
61.0Ranks 2,026 of 3,611, lowest first114
Average speedThis ship 11.8 kn · median 10.7 (+10%)
8.8Faster than 90% of bulk carrier ships11.8
CO₂ per transport work (cargo)This ship 5.11 g CO₂/t·nm · median 7.90 (−35%)
4.80Ranks 477 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 EU24%
  • Into the EU75%
  • At berth in the EU1%

51% of this ship's CO₂ falls under the EU ETS (4,608 t).

Fuel burned laden
–
Not reported
CO₂ at berth
129 t
1.4% of the ship's CO₂, alongside in EU ports
Methane (CH₄)
0.2 t
Mainly from LNG; small for oil, biofuel and methanol
CO₂eq uplift
+143 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

  • ROYAL NEPTUNE
  • Bulk carrier median

Average speed, kn

  • ROYAL NEPTUNE
  • Bulk carrier median

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

  • ROYAL NEPTUNE
  • Bulk carrier median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2024→2025−0.6 kn+9%+3%+169%+29%0.6 kn slower, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024+1.1 kn−0%+9%+140%+23%1.1 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023+0.2 kn−20%−18%−81%−59%Same speed, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2021→2022−1.7 kn+4%−9%+220%+23%1.7 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021+0.3 kn+10%+12%−19%−20%0.3 kn faster, fuel per mile up 10%; in line with the speed change.

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

YearISM companyFuel tCO₂ tDistance nmHours at seahAverage speedknots at seaFuel kg/nmthis shipCO₂ per transport work (cargo)g/t·nm, this shipLaden fuel
2025LEO OCEAN, S.A.2,9039,08633,9692,88211.885.55.11–
2024LEO OCEAN, S.A.9953,10712,6351,02212.478.83.96–
2023not published4171,3025,27246511.379.13.23–
2022not published2,7118,50127,4692,47311.198.77.83–
2021not published8122,5398,59067312.894.56.36–
2020not published9132,86610,61184912.586.17.93–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmBulk carrier medianvs Bulk carrierRankVerifierMethods
2025LEO OCEAN, S.A.5.117.90−35%477 of 3,611VerifaviaB+C
2024LEO OCEAN, S.A.3.968.09−51%136 of 3,089VerifaviaB+C
2023not published3.238.27−61%71 of 3,548VerifaviaB+C
2022not published7.838.71−10%1,548 of 3,968VerifaviaC
2021not published6.368.57−26%724 of 3,466VerifaviaB+C
2020not published7.938.24−4%1,433 of 3,150VerifaviaB+C

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.