Navalyze · Oil tanker · Ship

DURGA

IMO: 9260005
Type: Oil tanker
Average cargo carried: 16,075 t
Flag (estimated): Tuvalu
Port of registry: Funafuti
Technical efficiency: EEXI 5.73 g CO₂/t·nm
Ice class: IB
Former names: SEAMERCURY, NAV DURGA

ISM company (DoC holder) in 2025: Lea Shipping Corporation Ltd.

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 13,628 t of cargo on average.

Fuel kg/nm

106

Oil tanker median 129 kg/nm (−18%)

CO₂ per transport work (cargo)

24.5

g CO₂/t·nm · Oil tanker median 8.44 (+191%)

Average speed

10.1 kn

Oil tanker median 11.0 kn (−8%)

Fuel per day at sea

25.8 t/day

Fuel consumed

2,199 t

CO₂ emitted

6,928 t

Distance sailed

20,716 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,044 h

85 days, 23% 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 135 kg/nm · median 129 (+5%)

76.1Ranks 961 of 1,665, lowest first191

Average speedThis ship 11.5 kn · median 10.7 (+7%)

8.0Faster than 75% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 26.5 g CO₂/t·nm · median 7.95 (+233%)

4.51Ranks 1,484 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2023

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 ports5%
From the EU40%
Into the EU48%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

500 t

7.2% 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

DURGA
Oil tanker median

100.0125.0150.0175.0200.0225.0

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

Average speed, kn

DURGA
Oil tanker median

6.08.010.012.0

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

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

DURGA
Oil tanker median

0.010.020.030.040.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+4.2 kn	−33%	+6%	+224%	−25%	4.2 kn faster, fuel per mile down 33%; better than speed alone explains (hull, engine or trade).
2023→2024	−2.8 kn	+89%	+36%	−66%	+44%	2.8 kn slower, fuel per mile up 89%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2023	+1.3 kn	−19%	−7%	−21%	+40%	1.3 kn faster, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2020→2021	+2.1 kn	+15%	+50%	−11%	−30%	2.1 kn faster, fuel per mile up 15%; better than speed alone explains (hull, engine or trade).
2019→2020	−2.0 kn	−6%	−27%	−30%	+32%	2.0 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.2 kn	−1%	−3%	+200%	−9%	Same speed, fuel per mile flat.

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	Lea Shipping Corporation Ltd.	3,106	9,808	23,022	2,000	11.5	135	26.5	–
2024	BRAVO SHIP MANAGEMENT PVT LTD	1,424	4,491	7,111	972	7.3	200	35.4	–
2023	not published	2,199	6,928	20,716	2,044	10.1	106	24.5	–
2021	not published	3,437	10,887	26,147	2,978	8.8	131	17.5	–
2020	not published	3,349	10,608	29,327	4,355	6.7	114	25.1	–
2019	not published	5,078	15,915	41,891	4,816	8.7	121	19.1	–
2018	not published	1,703	5,330	13,947	1,568	8.9	122	21.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Lea Shipping Corporation Ltd.	26.5	7.95	+233%	1,484 of 1,665	Verifavia	B
2024	BRAVO SHIP MANAGEMENT PVT LTD	35.4	8.06	+339%	1,685 of 1,787	Verifavia	B
2023	not published	24.5	8.44	+191%	1,608 of 1,797	DNV	B
2021	not published	17.5	8.86	+97%	1,469 of 1,789	RINA	B+C
2020	not published	25.1	9.03	+178%	1,664 of 1,870	RINA	B+C
2019	not published	19.1	8.83	+116%	1,616 of 1,919	RINA	B+C
2018	not published	21.0	8.86	+137%	1,551 of 1,779	RINA	B+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.