Navalyze · Oil tanker · Ship

NISSOS CHRISTIANA

IMO: 9694658
Type: Oil tanker
Average cargo carried: 36,393 t
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEXI 2.89 g CO₂/t·nm

ISM company (DoC holder) in 2025: KYKLADES MARITIME CORPORATION

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 55,246 t of cargo on average.

Fuel kg/nm

171

Oil tanker median 129 kg/nm (+32%)

CO₂ per transport work (cargo)

9.70

g CO₂/t·nm · Oil tanker median 8.86 (+9%)

Average speed

10.7 kn

Oil tanker median 10.7 kn (+0%)

Fuel per day at sea

43.8 t/day

Fuel consumed

7,736 t

CO₂ emitted

24,313 t

Distance sailed

45,369 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,238 h

177 days, 48% 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 kg/nmThis ship 140 kg/nm · median 129 (+9%)

76.1Ranks 1,029 of 1,665, lowest first191

Average speedThis ship 9.4 kn · median 10.7 (−12%)

8.0Faster than 22% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 11.9 g CO₂/t·nm · median 7.95 (+50%)

4.51Ranks 1,200 of 1,665, lowest first27.7

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 ports7%
From the EU41%
Into the EU40%
At berth in the EU12%

Fuel burned laden

–

Not reported

CO₂ at berth

2,949 t

12.1% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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

NISSOS CHRISTIANA
Oil tanker median

120.0140.0160.0180.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

NISSOS CHRISTIANA
Oil tanker median

9.010.011.012.013.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

NISSOS CHRISTIANA
Oil tanker median

4.06.08.010.012.014.0

’182018’192019’202020’212021’222022’232023’242024’252025

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	+6%	−2%	+100%	+88%	0.7 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.4 kn	−7%	−10%	−4%	−37%	0.4 kn slower, fuel per mile down 7%; in line with the speed change.
2022→2023	+0.4 kn	−3%	+1%	−51%	−16%	0.4 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.6 kn	−15%	−19%	−42%	+25%	0.6 kn slower, fuel per mile down 15%; in line with the speed change.
2020→2021	+0.1 kn	+21%	+22%	−2%	+11%	Same speed, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.9 kn	+12%	+3%	+646%	+108%	0.9 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.6 kn	−10%	−15%	−72%	−45%	0.6 kn slower, fuel per mile down 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

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	KYKLADES MARITIME CORPORATION	3,445	10,727	24,687	2,620	9.4	140	11.9	–
2024	KYKLADES MARITIME CORPORATION	1,636	5,113	12,371	1,221	10.1	132	6.35	–
2023	not published	1,821	5,725	12,880	1,224	10.5	141	10.1	–
2022	not published	3,823	12,023	26,350	2,599	10.1	145	12.1	–
2021	not published	7,736	24,313	45,369	4,238	10.7	171	9.70	–
2020	not published	6,560	20,622	46,432	4,370	10.6	141	8.72	–
2019	not published	788	2,459	6,228	542	11.5	127	4.19	–
2018	not published	3,119	9,734	22,106	1,822	12.1	141	7.64	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	KYKLADES MARITIME CORPORATION	11.9	7.95	+50%	1,200 of 1,665	DNV	B
2024	KYKLADES MARITIME CORPORATION	6.35	8.06	−21%	538 of 1,787	DNV	B
2023	not published	10.1	8.44	+20%	1,127 of 1,797	DNV	B
2022	not published	12.1	8.51	+42%	1,392 of 1,961	DNV	B
2021	not published	9.70	8.86	+9%	1,011 of 1,789	DNV	B
2020	not published	8.72	9.03	−3%	886 of 1,870	DNV	B
2019	not published	4.19	8.83	−53%	155 of 1,919	ABS	B
2018	not published	7.64	8.86	−14%	687 of 1,779	ABS	B

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.