Navalyze

Navalyze · Oil tanker · Ship

NORDIC ZENITH

IMO
9588469
Type
Oil tanker
Average cargo carried
66,420 t
Port of registry
Monrovia
Technical efficiency
EEXI 2.82 g CO₂/t·nm

ISM company (DoC holder) in 2025: Columbia Shipmanagement (Deutschland) GmbH · part of Columbia Shipmanagement

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2025 at a glance

From the 2025 THETIS-MRV report. Carries about 66,420 t of cargo on average.

Fuel per mile
154.1 kg/nm
Oil tanker median 128.5 kg/nm (+20%)
CO₂ per transport work (cargo)
7.27
g CO₂/t·nm · Oil tanker median 7.95 (−9%)
Average speed
10.4 kn
Oil tanker median 10.7 kn (−3%)
Fuel per day at sea
38.3 t/day
Fuel consumed
8,490 t
CO₂ emitted
26,607 t
27,024 t CO₂eq incl. CH₄ and N₂O
Distance sailed
55,102 nm
CO₂ ÷ CO₂ per mile
Time at sea
5,320 h
222 days, 61% of the year

Within the oil tanker fleet, 2025

Set against all 1,665 oil tanker 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 per mileThis ship 154.1 kg/nm · median 128.5 (+20%)
76.1Ranks 1,239 of 1,665, lowest first190.8
Average speedThis ship 10.4 kn · median 10.7 (−3%)
8.0Faster than 39% of oil tanker ships12.1
CO₂ per transport work (cargo)This ship 7.27 g CO₂/t·nm · median 7.95 (−9%)
4.51Ranks 699 of 1,665, lowest first27.66
Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

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 ports0%
  • From the EU40%
  • Into the EU53%
  • At berth in the EU7%

31% of this ship's CO₂ falls under the EU ETS (8,137 t).

Fuel burned laden
54%
46% in ballast or unladen
CO₂ at berth
6.8%
Alongside in EU ports
Methane (CH₄)
0.4 t
Mainly from LNG; small for oil
CO₂eq ÷ CO₂
1.016
Uplift 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 per mile, kg/nm

  • NORDIC ZENITH
  • Oil tanker median

Average speed, kn

  • NORDIC ZENITH
  • Oil tanker median

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

  • NORDIC ZENITH
  • Oil tanker median

Year on year

YearSpeedFuel per mileFuel per dayDistanceCO₂ per TWReading
2024→2025+0.8 kn−1%+6%+2%+4%0.8 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024−2.1 kn+12%−8%−4%+4%2.1 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023−0.3 kn+6%+4%+36%+11%0.3 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022+0.3 kn−33%−32%+189%+6%0.3 kn faster, fuel per mile down 33%; better than speed alone explains (hull, engine or trade).
2020→2021−0.1 kn+17%+16%−68%−3%Same speed, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020+0.7 kn−48%−45%+2,603%−59%0.7 kn faster, fuel per mile down 48%; better than speed alone explains (hull, engine or trade).
2018→2019+0.0 kn+55%+56%−83%+104%Same speed, fuel per mile up 55%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. 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 nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025part-yearColumbia Shipmanagement (Deutschland) GmbH3,59411,25521,4361,93211.1167.66.7057%
2025Columbia Shipmanagement Ltd8,49026,60755,1025,32010.4154.17.2754%
2024Columbia Shipmanagement-GEU8,37326,20953,8045,5859.6155.66.9761%
2023not published7,84724,51956,3294,80411.7139.36.7253%
2022not published5,42116,95541,2763,45212.0131.36.0857%
2021not published2,8158,80314,3041,22011.7196.85.7278%
2020not published7,60923,83445,1473,81811.8168.55.88–
2019not published5431,6971,67015011.1325.314.49–
2018not published2,0986,55110,01490511.1209.57.12–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmOil tanker medianvs Oil tankerRankVerifierMethods
2025part-yearColumbia Shipmanagement (Deutschland) GmbH––––ABSA
2025Columbia Shipmanagement Ltd7.277.95−9%699 of 1,665ABSA
2024Columbia Shipmanagement-GEU6.978.06−14%670 of 1,787ABSA
2023not published6.728.44−20%582 of 1,797ABSB
2022not published6.088.51−29%475 of 1,961ABSB
2021not published5.728.86−35%358 of 1,789ABSB
2020not published5.889.03−35%340 of 1,870ABSB
2019not published14.498.83+64%1,470 of 1,919ABSB
2018not published7.128.86−20%605 of 1,779ABSB

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.