Navalyze · Oil tanker · Ship

IONIC ANASSA

IMO: 9779795
Type: Oil tanker
Average cargo carried: 60,648 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEDI 3.12 g CO₂/t·nm

ISM company (DoC holder) in 2025: IONIC TANKERS (MGT) INC. · part of Ionic Shipping

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 60,648 t of cargo on average.

Fuel kg/nm

142

Oil tanker median 129 kg/nm (+11%)

CO₂ per transport work (cargo)

7.36

g CO₂/t·nm · Oil tanker median 7.95 (−7%)

Average speed

9.5 kn

Oil tanker median 10.7 kn (−11%)

Fuel per day at sea

32.2 t/day

Fuel consumed

4,971 t

CO₂ emitted

15,620 t

15,864 t CO₂eq incl. CH₄ and N₂O

Distance sailed

34,993 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,702 h

154 days, 42% 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 142 kg/nm · median 129 (+11%)

76.1Ranks 1,062 of 1,665, lowest first191

Average speedThis ship 9.5 kn · median 10.7 (−11%)

8.0Faster than 22% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 7.36 g CO₂/t·nm · median 7.95 (−7%)

4.51Ranks 719 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

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 ports5%
From the EU44%
Into the EU42%
At berth in the EU9%

57% of this ship's CO₂ falls under the EU ETS (8,918 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,478 t

9.5% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+244 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

IONIC ANASSA
Oil tanker median

100.0120.0140.0160.0180.0

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

Average speed, kn

IONIC ANASSA
Oil tanker median

6.08.010.012.014.0

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

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

IONIC ANASSA
Oil tanker median

5.07.510.012.515.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+2.4 kn	−2%	+31%	+9%	–	2.4 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2023→2024	−1.5 kn	+16%	−4%	−37%	–	1.5 kn slower, fuel per mile up 16%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−2.7 kn	+11%	−15%	+44%	+18%	2.7 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.9 kn	−21%	−15%	+74%	+27%	0.9 kn faster, fuel per mile down 21%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.6 kn	−8%	−13%	−62%	−14%	0.6 kn slower, fuel per mile down 8%; in line with the speed change.
2019→2020	−1.3 kn	+1%	−10%	+138%	−45%	1.3 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.7 kn	−14%	−9%	−39%	−13%	0.7 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	IONIC TANKERS (MGT) INC.	4,971	15,620	34,993	3,702	9.5	142	7.36	–
2024	IONIC TANKERS (MGT) INC.	4,631	14,578	32,056	4,545	7.1	145	–	–
2023	not published	6,286	19,769	50,529	5,892	8.6	124	8.59	–
2022	not published	3,905	12,213	35,006	3,101	11.3	112	7.30	–
2021	not published	2,848	8,932	20,136	1,932	10.4	142	5.75	–
2020	not published	8,063	25,308	52,395	4,773	11.0	154	6.68	–
2019	not published	3,353	10,489	22,013	1,783	12.3	152	12.2	–
2018	not published	6,440	20,156	36,302	3,117	11.6	177	14.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	IONIC TANKERS (MGT) INC.	7.36	7.95	−7%	719 of 1,665	ClassNK	A
2024	IONIC TANKERS (MGT) INC.	–	–	–	–	ClassNK	A
2023	not published	8.59	8.44	+2%	920 of 1,797	ClassNK	A
2022	not published	7.30	8.51	−14%	741 of 1,961	ClassNK	A
2021	not published	5.75	8.86	−35%	365 of 1,789	ClassNK	A
2020	not published	6.68	9.03	−26%	499 of 1,870	ClassNK	A
2019	not published	12.2	8.83	+38%	1,347 of 1,919	ClassNK	A
2018	not published	14.0	8.86	+58%	1,340 of 1,779	ClassNK	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.