MUM: CO₂ emissions 2018–2023

MUM against its type

Built in 2005, it is 5 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 61,724 gross tonnage it is larger than 56% of the other 2,841 oil tankers with a recorded tonnage. It is one of 237 oil tankers here under the Singapore flag, 6.7% of the 3,548 on the register. Its MRV returns name it MAERSK PEARL for 2018–2019, DIAMONDBACK for 2020 and DIAMOND for 2022–2023. The reported port of registry changed: Singapore (2018–2019), then Majuro (2020), then MONROVIA (2022–2023).

Its 5,015 t of CO₂ for 2023 is 33% below the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 528.6 kg CO₂, 29% above the type median of 408.5 kg. It logged 952 hours at sea against a median of 1,807 hours for its type that year. 7.9% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 4 years with reported emissions, the highest was 2019 (9,284 t) and the lowest 2023 (5,015 t). Its efficiency percentile within the type went from 39 in 2018 to 26 in 2023 (lower is more efficient). The one comparable vessel listed below with a 2023 return reported a lower CO₂ per nautical mile.

Emissions by year2018–2023

Vessel particulars

IMO number

9315446

Previously reported as

MAERSK PEARL, DIAMONDBACK, DIAMOND

Ship type

Oil tanker

Gross tonnage

61,724

Length overall

244.6 m

Year built

2005

Flag state

Singapore Wikidata/AIS, undated

Port of registry

Monrovia MRV 2023

Home port

Monrovia

Technical efficiency (design)

EEXI (3.37 gCO₂/t·nm)

Verifier

EMICERT, Greece

Accreditation

874-4

Compliance document issued

2024-11-22

Compliance document expires

2025-06-30

Efficiency against its own type2023

Position 421 of 1,615 qualifying oil tankers by EEOI, at the 26th percentile. The dashed line is the type median, 8.0; this vessel reported 6.0.

EEOI divides emissions by transport work, which for this vessel and year was 838,578,595 tonne-miles over 9,486 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2023 was 35.4% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.

From 2020 to 2023, emissions fell 45.4% while distance sailed fell 53.0%and CO₂ per nautical mile rose 16.1%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2023 emissions occurred

Sanctions listings

Reproduced from the published source register as of the build date, and not legal advice. A listing attaches to the vessel with this IMO number; ownership and management may have changed since. Check the issuing authority before relying on it.

Verifier history

A change of verifier is not in itself a sign of anything being wrong.

Sources and how to read this

• Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2023, published by the European Commission.
• Vessel particulars: Wikidata (CC0).
• Sanctions: ofac_sdn.

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

Comparable vesselsnearest by tonnage, same type

• MAERSK PRODUCER 2006 · 61,724 GT · 6,369 t · 452.6 kg/nm
• MAERSK PROMISE 2006 · 61,724 GT · 6,187 t · 459.9 kg/nm
• MAERSK PRINCESS 2005 · 61,724 GT · 7,195 t · 518.9 kg/nm
• MAERSK PENGUIN 2007 · 61,724 GT · 3,448 t · 431.2 kg/nm
• KUDOS 2007 · 61,724 GT · 11,718 t · 1,842.1 kg/nm
• EPANASTASEA 2008 · 61,724 GT · 3,141 t · 391.2 kg/nm
• AQUANUS 2006 · 61,724 GT · 5,988 t · 580.6 kg/nm
• TORM MARINA 2007 · 61,724 GT · 9,703 t · 391.1 kg/nm