TonneMiles

Oil tanker · Marshall Islands flag · built 2011

BLUE MOON: CO₂ emissions 2018–2025

IMO 9524994 6 reporting years

CO₂ reported 2023
15,553 t
Fuel burned
4,944 t
Distance
33,466 nm
Time at sea
2,935 h
Emitted at berth
11% of total
Share of year under way
34%
Gross tonnage
56,326

BLUE MOON against its type

Built in 2011, it is 1 year newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 56,326 gross tonnage it is smaller than 56% of the other 2,841 oil tankers with a recorded tonnage. It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. Its MRV returns name it MAERSK JEDDAH for 2018 and BLUE MOON for 2019–2025. The reported port of registry changed: Singapore (2018–2019), then Majuro (2021–2025).

Its 15,553 t of CO₂ for 2023 is 2.1 times the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 464.7 kg CO₂, 14% above the type median of 408.5 kg. It logged 2,935 hours at sea against a median of 1,807 hours for its type that year. 11.3% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 5 years with reported emissions, the highest was 2019 (15,680 t) and the lowest 2021 (2,385 t). Its efficiency percentile within the type went from 57 in 2018 to 70 in 2023 (lower is more efficient).

No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.

Emissions by year2018–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 No EU/EEA voyages reported
2023 15,553 4,944 33,466 2,935 1,763 464.7 10.3 70
2022 4,606 1,457 11,576 969 349 397.9 5.7 22
2021 2,385 765 — 697 50 332.9 27.5 not ranked
2019 15,680 5,012 34,334 3,068 2,322 456.7 7.3 38
2018 13,440 4,298 31,722 3,036 2,296 423.7 9.3 57

Vessel particulars

IMO number
9524994
Previously reported as
MAERSK JEDDAH
Ship type
Oil tanker
Gross tonnage
56,326
Length overall
228.0 m
Beam
42.0 m
Year built
2011
Flag state
Marshall Islands per EU MRV 2025
Port of registry
Majuro MRV 2023
Technical efficiency (design)
EEXI (3.46 gCO₂/t·nm)
Verifier
Bureau Veritas Certification France, France
Accreditation
3-2047 rév. 1
Compliance document issued
2024-06-29
Compliance document expires
2025-06-30

Efficiency against its own type2023

Position 1,130 of 1,615 qualifying oil tankers by EEOI, at the 70th percentile. The dashed line is the type median, 8.0; this vessel reported 10.3.

0255075100more efficientless efficientThis vessel: 70th percentile, EEOI 10.3

EEOI divides emissions by transport work, which for this vessel and year was 1,507,045,543 tonne-miles over 33,466 nautical miles.

Reported CO₂ by year

2018: 13,440 t201813,4402019: 15,680 t20192021: 2,385 t20212022: 4,606 t20222023: 15,553 t202315,553

Reported CO₂ in 2023 was 15.7% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2024, so the series has gaps.

From 2022 to 2023, emissions rose 237.6% while distance sailed rose 189.1%and CO₂ per nautical mile rose 16.8%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2023 emissions occurred

At berthAt berth: 1,763 t1,763Voyages between EEA portsVoyages between EEA ports: 759 t759Voyages to an EEA portVoyages to an EEA port: 7,957 t7,957Voyages from an EEA portVoyages from an EEA port: 5,074 t5,074

Verifier history

From reporting yearVerifierAccredited in
2018AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD)Greece
2021Bureau Veritas Certification FranceFrance

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

Sources and how to read this

This page draws on 6 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, a licensed photograph, 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.

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