Navalyze · Oil tanker · Ship

YUAN DONG HAI

IMO: 9843338
Type: Oil tanker
Average cargo carried: 79,319 t
Flag (estimated): China
Port of registry: Yangpu China
Technical efficiency: EEXI 2.68 g CO₂/t·nm

ISM company (DoC holder) in 2025: COSCO SHIPPING Energy Transportation Co., Ltd. · part of COSCO Shipping

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 109,994 t of cargo on average.

Fuel kg/nm

182

Oil tanker median 134 kg/nm (+36%)

CO₂ per transport work (cargo)

5.19

g CO₂/t·nm · Oil tanker median 9.03 (−43%)

Average speed

18.4 kn

Oil tanker median 11.0 kn (+67%)

Fuel per day at sea

80.2 t/day

Fuel consumed

2,803 t

CO₂ emitted

8,812 t

Distance sailed

15,436 nm

CO₂ ÷ CO₂ per mile

Time at sea

839 h

35 days, 10% 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 132 kg/nm · median 129 (+3%)

76.1Ranks 906 of 1,665, lowest first191

Average speedThis ship 9.7 kn · median 10.7 (−9%)

8.0Faster than 25% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 5.20 g CO₂/t·nm · median 7.95 (−35%)

4.51Ranks 295 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 ports37%
From the EU0%
Into the EU40%
At berth in the EU23%

Fuel burned laden

–

Not reported

CO₂ at berth

2,036 t

23.1% 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

YUAN DONG HAI
Oil tanker median

100.0120.0140.0160.0180.0200.0

’202020’212021’222022’232023’242024’252025

Average speed, kn

YUAN DONG HAI
Oil tanker median

7.510.012.515.017.520.0

’202020’212021’222022’232023’242024’252025

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

YUAN DONG HAI
Oil tanker median

2.04.06.08.010.0

’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.0 kn	−5%	+5%	+20%	+6%	1.0 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.9 kn	+4%	−6%	+37%	+16%	0.9 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.0 kn	+15%	+15%	+181%	+0%	Same speed, fuel per mile up 15%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.5 kn	−12%	−23%	−43%	+45%	1.5 kn slower, fuel per mile down 12%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−7.3 kn	−27%	−56%	+23%	−44%	7.3 kn slower, fuel per mile down 27%; 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	COSCO SHIPPING Energy Transportation Co., Ltd.	6,569	20,543	49,805	5,129	9.7	132	5.20	–
2024	COSCO SHIPPING Energy Transportation Co., Ltd.	5,751	18,036	41,420	4,742	8.7	139	4.90	–
2023	not published	4,047	12,669	30,279	3,148	9.6	134	4.24	–
2022	not published	1,251	3,914	10,769	1,122	9.6	116	4.22	–
2021	not published	2,514	7,866	19,031	1,722	11.1	132	2.92	–
2020	not published	2,803	8,812	15,436	839	18.4	182	5.19	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	COSCO SHIPPING Energy Transportation Co., Ltd.	5.20	7.95	−35%	295 of 1,665	China Classification Society	A
2024	COSCO SHIPPING Energy Transportation Co., Ltd.	4.90	8.06	−39%	272 of 1,787	China Classification Society	A
2023	not published	4.24	8.44	−50%	97 of 1,797	China Classification Society	A
2022	not published	4.22	8.51	−50%	108 of 1,961	China Classification Society	A
2021	not published	2.92	8.86	−67%	23 of 1,789	China Classification Society	A
2020	not published	5.19	9.03	−43%	234 of 1,870	China Classification Society	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.