Navalyze

Navalyze · Oil tanker · Ship

LORD BYRON 21

IMO
9889954
Type
Oil tanker
Average cargo carried
59,034 t
Flag (estimated)
Malta
Port of registry
Valletta
Technical efficiency
EEXI 2.69 g CO₂/t·nm

ISM company (DoC holder) in 2024: ENESEL S.A. · part of Enesel

?
?

2024 at a glance

From the 2024 THETIS-MRV report. Carries about 59,034 t of cargo on average.

Fuel kg/nm
122
Oil tanker median 129 kg/nm (−5%)
CO₂ per transport work (cargo)
6.46
g CO₂/t·nm · Oil tanker median 8.06 (−20%)
Average speed
11.0 kn
Oil tanker median 10.9 kn (+1%)
Fuel per day at sea
32.2 t/day
Fuel consumed
4,883 t
CO₂ emitted
15,256 t
15,496 t CO₂eq incl. CH₄ and N₂O
Distance sailed
40,004 nm
CO₂ ÷ CO₂ per mile
Time at sea
3,644 h
152 days, 42% of the year

Within the oil tanker fleet, 2024

Set against all 1,787 oil tanker ships with a full-year 2024 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 122 kg/nm · median 129 (−5%)
79.5Ranks 756 of 1,787, lowest first194
Average speedThis ship 11.0 kn · median 10.9 (+1%)
8.1Faster than 52% of oil tanker ships12.3
CO₂ per transport work (cargo)This ship 6.46 g CO₂/t·nm · median 8.06 (−20%)
4.44Ranks 563 of 1,787, lowest first25.7
Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2024

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 EU44%
  • Into the EU51%
  • At berth in the EU5%

53% of this ship's CO₂ falls under the EU ETS (8,017 t).

Fuel burned laden
–
Not reported
CO₂ at berth
775 t
5.1% 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
+240 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 Oil tanker median is the middle ship of all oil tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

  • LORD BYRON 21
  • Oil tanker median

Average speed, kn

  • LORD BYRON 21
  • Oil tanker median

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

  • LORD BYRON 21
  • Oil tanker median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2022→2024−0.7 kn−14%−19%+134%+10%0.7 kn slower, fuel per mile down 14%; in line with the speed change.
2021→2022+0.4 kn+5%+9%+201%+51%0.4 kn faster, fuel per mile up 5%; 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
2024ENESEL S.A.4,88315,25640,0043,64411.01226.46–
2022not published2,4167,56517,0931,45811.71415.88–
2021not published7682,4025,68750311.31353.89–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmOil tanker medianvs Oil tankerRankVerifierMethods
2024ENESEL S.A.6.468.06−20%563 of 1,787DNVA
2022not published5.888.51−31%429 of 1,961DNVA
2021not published3.898.86−56%75 of 1,789DNVA

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Oil tanker 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 oil tanker 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.