Navalyze · Oil tanker · Ship

SONANGOL KASSANJE

IMO: 9315654
Type: Oil tanker
Average cargo carried: 105,078 t
Port of registry: Nassau
Technical efficiency: EIV 3.20 g CO₂/t·nm

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 105,078 t of cargo on average.

Fuel per mile

211.6 kg/nm

Oil tanker median 128.8 kg/nm (+64%)

CO₂ per transport work (cargo)

6.31

g CO₂/t·nm · Oil tanker median 8.86 (−29%)

Average speed

11.0 kn

Oil tanker median 10.7 kn (+3%)

Fuel per day at sea

55.9 t/day

Fuel consumed

5,701 t

CO₂ emitted

17,861 t

Distance sailed

26,939 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,446 h

102 days, 28% of the year

Within the oil tanker fleet, 2021

Set against all 1,789 oil tanker ships with a full-year 2021 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 211.6 kg/nm · median 128.8 (+64%)

76.5Ranks 1,689 of 1,789, lowest first194.0

Average speedThis ship 11.0 kn · median 10.7 (+3%)

8.1Faster than 57% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 6.31 g CO₂/t·nm · median 8.86 (−29%)

4.75Ranks 469 of 1,789, lowest first25.20

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2021

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 EU44%
Into the EU32%
At berth in the EU24%

Fuel burned laden

–

Not reported

CO₂ at berth

23.8%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

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

SONANGOL KASSANJE
Oil tanker median

125.0150.0175.0200.0225.0

’182018’212021

Average speed, kn

SONANGOL KASSANJE
Oil tanker median

9.510.010.511.0

’182018’212021

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

SONANGOL KASSANJE
Oil tanker median

6.07.08.09.010.0

’182018’212021

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2018→2021	+0.1 kn	+28%	+30%	+195%	−36%	Same speed, fuel per mile up 28%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2021	not published	5,701	17,861	26,939	2,446	11.0	211.6	6.31	–
2018	not published	1,507	4,716	9,125	839	10.9	165.1	9.82	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2021	not published	6.31	8.86	−29%	469 of 1,789	Verifavia	A
2018	not published	9.82	8.86	+11%	1,023 of 1,779	Verifavia	A

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.