Navalyze · Oil tanker · Ship

CHIOS I

IMO: 9792187
Type: Oil tanker
Average cargo carried: 108,174 t
Port of registry: Valletta
Technical efficiency: EEDI 2.66 g CO₂/t·nm

ISM company (DoC holder) in 2025: DYNACOM TANKERS MANAGEMENT LTD

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 108,174 t of cargo on average.

Fuel per mile

220.8 kg/nm

Oil tanker median 128.5 kg/nm (+72%)

CO₂ per transport work (cargo)

6.43

g CO₂/t·nm · Oil tanker median 7.95 (−19%)

Average speed

6.4 kn

Oil tanker median 10.7 kn (−40%)

Fuel per day at sea

33.8 t/day

Fuel consumed

1,370 t

CO₂ emitted

4,314 t

4,381 t CO₂eq incl. CH₄ and N₂O

Distance sailed

6,202 nm

CO₂ ÷ CO₂ per mile

Time at sea

972 h

41 days, 11% 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 220.8 kg/nm · median 128.5 (+72%)

76.1Ranks 1,587 of 1,665, lowest first190.8

Average speedThis ship 6.4 kn · median 10.7 (−40%)

8.0Faster than 3% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.43 g CO₂/t·nm · median 7.95 (−19%)

4.51Ranks 523 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 ports23%
From the EU19%
Into the EU40%
At berth in the EU19%

71% of this ship's CO₂ falls under the EU ETS (3,049 t).

Fuel burned laden

–

Not reported

CO₂ at berth

18.7%

Alongside in EU ports

Methane (CH₄)

0.1 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

CHIOS I
Oil tanker median

125.0150.0175.0200.0225.0

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

Average speed, kn

CHIOS I
Oil tanker median

6.08.010.012.0

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

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

CHIOS I
Oil tanker median

2.04.06.08.010.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	–	–	–	–	–
2023→2024	–	–	–	–	–
2022→2023	−2.8 kn	+7%	−24%	−28%	+32%	2.8 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−2.2 kn	+10%	−11%	+36%	+15%	2.2 kn slower, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.9 kn	−28%	−14%	+23%	−42%	1.9 kn faster, fuel per mile down 28%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.6 kn	+8%	+15%	−57%	+8%	0.6 kn faster, fuel per mile up 8%; better than speed alone explains (hull, engine or trade).
2018→2019	−2.0 kn	+4%	−15%	−38%	−16%	2.0 kn slower, fuel per mile up 4%; 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
2025	DYNACOM TANKERS MANAGEMENT LTD	1,370	4,314	6,202	972	6.4	220.8	6.43	–
2024	DYNACOM TANKERS MANAGEMENT LTD	0	0	–	0	–	–	–	–
2023	not published	1,317	4,122	8,446	1,236	6.8	155.9	5.44	–
2022	not published	1,725	5,409	11,791	1,224	9.6	146.3	4.13	–
2021	not published	1,154	3,623	8,667	733	11.8	133.1	3.58	–
2020	not published	1,301	4,070	7,072	714	9.9	184.0	6.17	–
2019	not published	2,815	8,855	16,508	1,779	9.3	170.5	5.73	–
2018	not published	4,414	13,782	26,816	2,382	11.3	164.6	6.80	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	DYNACOM TANKERS MANAGEMENT LTD	6.43	7.95	−19%	523 of 1,665	EMICERT	A
2024	DYNACOM TANKERS MANAGEMENT LTD	–	–	–	–	EMICERT	A
2023	not published	5.44	8.44	−36%	309 of 1,797	EMICERT	A
2022	not published	4.13	8.51	−51%	96 of 1,961	EMICERT	A
2021	not published	3.58	8.86	−60%	55 of 1,789	EMICERT	A
2020	not published	6.17	9.03	−32%	393 of 1,870	EMICERT	A
2019	not published	5.73	8.83	−35%	370 of 1,919	EMICERT	A
2018	not published	6.80	8.86	−23%	543 of 1,779	EMICERT	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.