Navalyze · Oil tanker · Ship

YUAN HE WAN

IMO: 9845996
Type: Oil tanker
Flag (estimated): China
Port of registry: Shang Hai
Technical efficiency: EEXI 2.81 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 58,424 t of cargo on average.

Fuel kg/nm

113

Oil tanker median 134 kg/nm (−16%)

CO₂ per transport work (cargo)

6.06

g CO₂/t·nm · Oil tanker median 9.03 (−33%)

Average speed

9.8 kn

Oil tanker median 11.0 kn (−11%)

Fuel per day at sea

26.6 t/day

Fuel consumed

4,415 t

CO₂ emitted

13,832 t

Distance sailed

39,067 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,983 h

166 days, 45% of the year

Within the oil tanker fleet, 2024

Set against all 1,787 oil tanker ships with a full-year 2024 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 117 kg/nm · median 129 (−10%)

79.5Ranks 654 of 1,787, lowest first194

Average speedThis ship 10.3 kn · median 10.9 (−6%)

8.1Faster than 34% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 5.70 g CO₂/t·nm · median 8.06 (−29%)

4.44Ranks 418 of 1,787, lowest first25.7

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 ports5%
From the EU30%
Into the EU54%
At berth in the EU11%

Fuel burned laden

–

Not reported

CO₂ at berth

1,535 t

11.1% 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 HE WAN
Oil tanker median

90.0100.0110.0120.0130.0140.0

’202020’212021’242024’252025

Average speed, kn

YUAN HE WAN
Oil tanker median

9.010.011.012.013.0

’202020’212021’242024’252025

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

YUAN HE WAN
Oil tanker median

2.04.06.08.010.0

’202020’212021’242024

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.1 kn	−14%	−24%	−56%	–	1.1 kn slower, fuel per mile down 14%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2024	−1.9 kn	+6%	−11%	−2%	+48%	1.9 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+2.4 kn	−2%	+21%	−81%	−36%	2.4 kn faster, fuel per mile down 2%; 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	COSCO SHIPPING Energy Transportation Co., Ltd.	327	1,032	3,279	357	9.2	99.7	–	–
2024	COSCO SHIPPING Energy Transportation Co., Ltd.	859	2,691	7,371	716	10.3	117	5.70	–
2021	not published	833	2,609	7,552	622	12.2	110	3.85	–
2020	not published	4,415	13,832	39,067	3,983	9.8	113	6.06	–

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.	–	–	–	–	China Classification Society	A
2024	COSCO SHIPPING Energy Transportation Co., Ltd.	5.70	8.06	−29%	418 of 1,787	China Classification Society	A
2021	not published	3.85	8.86	−57%	73 of 1,789	China Classification Society	A
2020	not published	6.06	9.03	−33%	370 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.