Container ship · Singapore flag · built 2015

YM WELLHEAD: CO₂ emissions 2018–2025

IMO 9684665 EU ETS4 reporting years

CO₂ reported 2025: 26,984 t
Fuel burned: 8,726 t
Distance: 35,580 nm
Time at sea: 2,394 h
Emitted at berth: 2% of total
Share of year under way: 27%
Gross tonnage: 146,700

YM WELLHEAD against its type

Built in 2015, it is 7 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 146,700 gross tonnage it is larger than 89% of the other 3,000 container ships with a recorded tonnage. It is one of 362 container ships here under the Singapore flag, 10.4% of the 3,495 on the register. The same builder is recorded for 761 other vessels here, 355 of them container ships. The reported port of registry changed: Hong Kong (2018–2020), then Singapore (2025).

Its 26,984 t of CO₂ for 2025 is 1.6 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 758.4 kg CO₂, 39% above the type median of 545.6 kg. It logged 2,394 hours at sea against a median of 3,155 hours for its type that year. 2.0% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 4 years with reported emissions, the highest was 2018 (78,286 t) and the lowest 2020 (22,140 t). Its efficiency percentile within the type went from 7 in 2018 to 18 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 5 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	26,984	8,726	35,580	2,394	543	758.4	7.9	18
2020	22,140	7,026	29,087	1,866	354	761.2	7.7	14
2019	75,850	24,305	96,796	6,012	1,131	783.6	7.7	11
2018	78,286	25,104	101,563	6,231	1,148	770.8	7.5	7

Vessel particulars

IMO number: 9684665
Ship type: Container ship
Gross tonnage: 146,700
Length overall: 368.0 m
Year built: 2015
Flag state: Singapore per EU MRV 2025
Builder: HD Hyundai Heavy Industries
Port of registry: Singapore MRV 2025
Technical efficiency (design): EEXI (8.77 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-18
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 322 of 1,838 qualifying container ships by EEOI, at the 18th percentile. The dashed line is the type median, 14.2; this vessel reported 7.9.

EEOI divides emissions by transport work, which for this vessel and year was 3,398,462,217 tonne-miles over 35,580 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 65.5% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2022, 2023, 2024, so the series has gaps.

From 2020 to 2025, emissions rose 21.9% while distance sailed rose 22.3%and CO₂ per nautical mile fell 0.4%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 27,412 t
Methane (CH₄): 0.44 t
Nitrous oxide (N₂O): 1.57 t
Under EU ETS: 12,981 t, 48% of total

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0) and Wikimedia Commons.

This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.