Navalyze · Bulk carrier · Ship

GULMAR

IMO: 9146962
Type: Bulk carrier
Average cargo carried: 20,808 t
Flag (estimated): Turkiye
Port of registry: İZmir
Technical efficiency: EEXI 4.60 g CO₂/t·nm

ISM company (DoC holder) in 2025: GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 16,071 t of cargo on average.

Fuel kg/nm

64.1

Bulk carrier median 86.5 kg/nm (−26%)

CO₂ per transport work (cargo)

12.6

g CO₂/t·nm · Bulk carrier median 8.24 (+52%)

Average speed

11.8 kn

Bulk carrier median 11.1 kn (+6%)

Fuel per day at sea

18.1 t/day

Fuel consumed

2,288 t

CO₂ emitted

7,205 t

Distance sailed

35,724 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,029 h

126 days, 35% of the year

Within the bulk carrier fleet, 2025

Set against all 3,611 bulk carrier 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 63.9 kg/nm · median 82.6 (−23%)

61.0Ranks 506 of 3,611, lowest first114

Average speedThis ship 11.6 kn · median 10.7 (+8%)

8.8Faster than 87% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 9.75 g CO₂/t·nm · median 7.90 (+23%)

4.80Ranks 2,499 of 3,611, lowest first15.9

Middle 80% of shipsMiddle 50%Bulk carrier 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 ports0%
From the EU47%
Into the EU49%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

252 t

3.5% 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 Bulk carrier median is the middle ship of all bulk carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

GULMAR
Bulk carrier median

60.070.080.090.0100.0110.0

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

Average speed, kn

GULMAR
Bulk carrier median

4.06.08.010.012.014.0

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

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

GULMAR
Bulk carrier median

6.08.010.012.014.0

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

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	−12%	+11%	+106%	–	2.4 kn faster, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2023→2024	+1.5 kn	−0%	+19%	+83%	–	1.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	+2.2 kn	+9%	+52%	−3%	+30%	2.2 kn faster, fuel per mile up 9%; better than speed alone explains (hull, engine or trade).
2020→2022	−6.3 kn	+5%	−51%	−65%	−31%	6.3 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−1.6 kn	−5%	−16%	+108%	+51%	1.6 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+4.8 kn	−35%	+1%	−41%	−3%	4.8 kn faster, fuel per mile down 35%; 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	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	2,898	9,209	45,393	3,900	11.6	63.9	9.75	5%
2024	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	1,601	5,036	22,077	2,405	9.2	72.5	–	–
2023	not published	875	2,746	12,043	1,570	7.7	72.7	11.3	–
2022	not published	828	2,621	12,357	2,267	5.5	67.0	8.69	–
2020	not published	2,288	7,205	35,724	3,029	11.8	64.1	12.6	–
2019	not published	1,152	3,607	17,136	1,278	13.4	67.2	8.33	–
2018	not published	2,972	9,281	28,886	3,345	8.6	103	8.57	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	9.75	7.90	+23%	2,499 of 3,611	Verifavia	B
2024	GULNAK DENIZCILIK NAKLIYAT VE TICARET ANONIM SIRKETI	–	–	–	–	Verifavia	B
2023	not published	11.3	8.27	+37%	2,643 of 3,548	RINA	B
2022	not published	8.69	8.71	−0%	1,976 of 3,968	RINA	B
2020	not published	12.6	8.24	+52%	2,643 of 3,150	RINA	B
2019	not published	8.33	8.38	−1%	1,656 of 3,360	RINA	B
2018	not published	8.57	8.50	+1%	1,722 of 3,384	RINA	B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier 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 bulk carrier 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.