Navalyze · Oil tanker · Ship

DA MING SHAN

IMO: 9779745
Type: Oil tanker
Average cargo carried: 5,564 t
Port of registry: Hong Kong
Technical efficiency: EEXI 10.50 g CO₂/t·nm

ISM company (DoC holder) in 2025: Tianjin Southwest Maritime Limited

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 5,564 t of cargo on average.

Fuel per mile

50.4 kg/nm

Oil tanker median 128.5 kg/nm (−61%)

CO₂ per transport work (cargo)

28.50

g CO₂/t·nm · Oil tanker median 7.95 (+258%)

Average speed

8.6 kn

Oil tanker median 10.7 kn (−20%)

Fuel per day at sea

10.3 t/day

Fuel consumed

577 t

CO₂ emitted

1,815 t

1,844 t CO₂eq incl. CH₄ and N₂O

Distance sailed

11,449 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,337 h

56 days, 15% 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 50.4 kg/nm · median 128.5 (−61%)

76.1Ranks 35 of 1,665, lowest first190.8

Average speedThis ship 8.6 kn · median 10.7 (−20%)

8.0Faster than 13% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 28.50 g CO₂/t·nm · median 7.95 (+258%)

4.51Ranks 1,507 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 ports1%
From the EU28%
Into the EU68%
At berth in the EU3%

52% of this ship's CO₂ falls under the EU ETS (946 t).

Fuel burned laden

23%

77% in ballast or unladen

CO₂ at berth

3.1%

Alongside in EU ports

Methane (CH₄)

0.0 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

DA MING SHAN
Oil tanker median

25.050.075.0100.0125.0150.0

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

Average speed, kn

DA MING SHAN
Oil tanker median

8.09.010.011.012.013.0

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

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

DA MING SHAN
Oil tanker median

0.010.020.030.040.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−3.5 kn	+8%	−24%	−71%	+6%	3.5 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.3 kn	+5%	+3%	+52%	+18%	0.3 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.0 kn	−9%	−10%	−55%	−12%	Same speed, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2021→2022	+1.0 kn	−17%	−9%	+234%	−6%	1.0 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.0 kn	−6%	−6%	−66%	−31%	Same speed, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2019→2020	+0.6 kn	+6%	+12%	−32%	+26%	0.6 kn faster, fuel per mile up 6%; better than speed alone explains (hull, engine or trade).
2018→2019	+1.2 kn	−1%	+12%	+108%	+18%	1.2 kn faster, fuel per mile flat; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Tianjin Southwest Maritime Limited	577	1,815	11,449	1,337	8.6	50.4	28.50	23%
2024	Tianjin Southwest Maritime Limited	1,838	5,757	39,317	3,241	12.1	46.8	26.79	53%
2023	not published	1,152	3,592	25,811	2,088	12.4	44.6	22.67	54%
2022	not published	2,831	8,852	57,880	4,665	12.4	48.9	25.85	51%
2021	not published	1,025	3,221	17,305	1,524	11.4	59.2	27.42	45%
2020	not published	3,182	9,965	50,550	4,436	11.4	63.0	39.69	45%
2019	not published	4,410	13,786	74,360	6,883	10.8	59.3	31.52	55%
2018	not published	2,132	6,662	35,708	3,701	9.6	59.7	26.61	62%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Tianjin Southwest Maritime Limited	28.50	7.95	+258%	1,507 of 1,665	Bureau Veritas	A+B
2024	Tianjin Southwest Maritime Limited	26.79	8.06	+232%	1,623 of 1,787	Bureau Veritas	A+B
2023	not published	22.67	8.44	+169%	1,587 of 1,797	Bureau Veritas	A
2022	not published	25.85	8.51	+204%	1,777 of 1,961	Bureau Veritas	A
2021	not published	27.42	8.86	+209%	1,632 of 1,789	Bureau Veritas	A
2020	not published	39.69	9.03	+340%	1,786 of 1,870	Bureau Veritas	A
2019	not published	31.52	8.83	+257%	1,804 of 1,919	Bureau Veritas	A
2018	not published	26.61	8.86	+200%	1,637 of 1,779	Bureau Veritas	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.