RIDGEBURY JOHN B: CO₂ emissions 2018–2022

RIDGEBURY JOHN B against its type

Built in 2007, it is 3 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 28,063 gross tonnage it is smaller than 83% 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. The same builder is recorded for 307 other vessels here, 48 of them oil tankers. V-Ships is linked to 16 vessels on this register. The returns for 2018–2022 all give Majuro as port of registry.

Its 5,210 t of CO₂ for 2022 is 28% below the median of 7,189 t among the 1,939 oil tankers on this register that reported for 2022. Per nautical mile it emitted 321.2 kg CO₂, 23% below the type median of 415.9 kg. It logged 1,262 hours at sea against a median of 1,731 hours for its type that year. 6.5% of its 2022 emissions were at berth; the median for oil tankers was 9.1%. Across 4 years with reported emissions, the highest was 2019 (7,388 t) and the lowest 2020 (2,997 t). Its efficiency percentile within the type went from 70 in 2018 to 82 in 2022 (lower is more efficient). The one sister ship listed below with a 2022 return reported a lower CO₂ per nautical mile.

Emissions by year2018–2022

Vessel particulars

IMO number

9349631

Ship type

Oil tanker

Gross tonnage

28,063

Length overall

179.9 m

Beam

32.2 m

Year built

2007

Flag state

Marshall Islands per EU MRV 2022

Builder

Shin Kurushima Dockyard

Port of registry

MAJURO MRV 2022

Technical efficiency (design)

EIV (7.29 gCO₂/t·nm)

Operator

V-Ships

Verifier

Nippon Kaiji Kyokai, Japan

Accreditation

VS-21325-01

Compliance document issued

2023-04-04

Compliance document expires

2024-06-30

Efficiency against its own type2022

Position 1,453 of 1,771 qualifying oil tankers by EEOI, at the 82nd percentile. The dashed line is the type median, 8.0; this vessel reported 13.6.

Across the 14 ranked vessels operated by V-Ships, the median percentile is 59. This vessel is less efficient than its own fleet median.

EEOI divides emissions by transport work, which for this vessel and year was 383,386,314 tonne-miles over 16,222 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2022 was 6.9% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.

From 2020 to 2022, emissions rose 73.9% while distance sailed rose 51.9%and CO₂ per nautical mile rose 14.5%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2022 emissions occurred

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 2018–2022, published by the European Commission.
• Vessel particulars: Wikidata (CC0).

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

Comparable vesselssister ships and nearest by tonnage

• ROSE M sister · 2005 · · 10,673 t · 335.5 kg/nm
• BOW HECTOR sister · 2009 · 20,145 GT · 4,527 t · 234.7 kg/nm
• ANTARES I sister · 2008 · 28,049 GT · 6,852 t · 296.2 kg/nm
• PIS PARAGON sister · 2009 · 28,051 GT · 6,814 t · 321.0 kg/nm
• BRUNSWICK sister · 2009 · 28,051 GT · 4,771 t · 233.1 kg/nm
• MAMBO sister · 2009 · 28,054 GT · 505 t · 299.0 kg/nm
• ATLANTIC T sister · 2009 · 28,054 GT · 1,294 t · 413.3 kg/nm
• RITA M sister · 2009 · 28,054 GT · 9,218 t · 342.9 kg/nm