Navalyze · Oil tanker · Ship

OTTOMAN COURTESY

IMO: 9788708
Type: Oil tanker
Average cargo carried: 66,340 t
Flag (estimated): Turkiye
Port of registry: Istanbul
Technical efficiency: EEXI 2.60 g CO₂/t·nm

ISM company (DoC holder) in 2025: Gungen Denizcilik ve Ticaret A.S.

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 68,670 t of cargo on average.

Fuel kg/nm

144

Oil tanker median 134 kg/nm (+8%)

CO₂ per transport work (cargo)

6.57

g CO₂/t·nm · Oil tanker median 9.03 (−27%)

Average speed

10.0 kn

Oil tanker median 11.0 kn (−9%)

Fuel per day at sea

34.6 t/day

Fuel consumed

4,580 t

CO₂ emitted

14,330 t

Distance sailed

31,763 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,173 h

132 days, 36% 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 134 kg/nm · median 129 (+4%)

76.1Ranks 947 of 1,665, lowest first191

Average speedThis ship 11.2 kn · median 10.7 (+5%)

8.0Faster than 67% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.33 g CO₂/t·nm · median 7.95 (−20%)

4.51Ranks 511 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2020

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 ports2%
From the EU56%
Into the EU28%
At berth in the EU13%

Fuel burned laden

–

Not reported

CO₂ at berth

1,892 t

13.2% 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

OTTOMAN COURTESY
Oil tanker median

120.0140.0160.0180.0

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

Average speed, kn

OTTOMAN COURTESY
Oil tanker median

6.08.010.012.0

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

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

OTTOMAN COURTESY
Oil tanker median

4.06.08.010.012.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.1 kn	+1%	+0%	+24%	+12%	Same speed, fuel per mile flat.
2022→2024	−0.3 kn	−17%	−19%	+19%	−13%	Same speed, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.9 kn	−10%	−2%	−11%	−38%	0.9 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.7 kn	+23%	+32%	−23%	+60%	0.7 kn faster, fuel per mile up 23%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+3.0 kn	−1%	+41%	+151%	−7%	3.0 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	−1.2 kn	+15%	−2%	−1%	−3%	1.2 kn slower, fuel per mile up 15%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Gungen Denizcilik ve Ticaret A.S.	4,301	13,463	32,061	2,850	11.2	134	6.33	–
2024	Gungen Denizcilik ve Ticaret A.S.	3,433	10,759	25,833	2,285	11.3	133	5.64	–
2022	not published	3,462	10,886	21,672	1,864	11.6	160	6.48	–
2021	not published	4,341	13,660	24,411	2,283	10.7	178	10.5	–
2020	not published	4,580	14,330	31,763	3,173	10.0	144	6.57	–
2019	not published	1,850	5,771	12,663	1,804	7.0	146	7.04	–
2018	not published	1,625	5,087	12,765	1,553	8.2	127	7.28	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Gungen Denizcilik ve Ticaret A.S.	6.33	7.95	−20%	511 of 1,665	DNV	B+C
2024	Gungen Denizcilik ve Ticaret A.S.	5.64	8.06	−30%	406 of 1,787	DNV	B+C
2022	not published	6.48	8.51	−24%	571 of 1,961	DNV	B+C
2021	not published	10.5	8.86	+18%	1,102 of 1,789	DNV	C
2020	not published	6.57	9.03	−27%	473 of 1,870	DNV	C
2019	not published	7.04	8.83	−20%	620 of 1,919	DNV	C
2018	not published	7.28	8.86	−18%	628 of 1,779	DNV	C

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.