What kind of ship is ROBERTA B?

ROBERTA B is an oil tanker sailing under the flag of Liberia, built in 2012 by Dalian Shipbuilding Industry Company. The vessel is 330 m long and has a gross tonnage of 157,048.

Who is recorded as the owner or manager of ROBERTA B?

Oak tanker corporation is recorded as ISM manager for ROBERTA B (source: EU MRV (THETIS-MRV) emissions; reporting year 2025). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for ROBERTA B?

Voydar has no matched sanctions record displayed for ROBERTA B from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for ROBERTA B. Missing records do not establish whether the ship has been detained.

ROBERTA B

Oil tanker · Liberia · built 2012 · AIS Class A

IMO9563237MMSI636026131Call signA8LH4Last AIS position Jul 28, 2026, 12:54 UTC

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In short

ROBERTA B (Oil tanker, Liberia flag) was last seen on AIS on Jul 28, 2026, 12:54 UTC, under way at 1.4 kn, in the Mediterranean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. ISM manager: Oak tanker corporation (source: EU MRV (THETIS-MRV) emissions, reporting year 2025).

Vessel type: Oil tanker
Flag: Liberia
Year built: 2012
Gross tonnage: 157,048
Size (length × beam): 330 m
ISM manager: Oak tanker corporation

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Last reported position

received Jul 28, 2026, 12:54 UTC

Position: 31.6427° N, 32.1897° E
Area: Mediterranean Sea
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 1.4 kn
Course: 288°
Heading: 258°

31.6427° N, 32.1897° E

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Voydar detected no port call in the last 30 days.

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)

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Identity & particulars

Name: ROBERTA B
IMO numberWhat is an IMO number?: 9563237
MMSIWhat is an MMSI?: 636026131
Call signWhat is a call sign?: A8LH4
Flag: Liberia
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsOil tanker
Gross tonnageGross tonnage vs deadweight: 157,048
Length overall: 330 m
Beam: —
Year built: 2012

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

ISM manager: Oak tanker corporation
Source: EU MRV (THETIS-MRV) emissions · reporting year 2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
Builder: Dalian Shipbuilding Industry Company
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Sep 30, 2019, 23:16 UTC	Reported departure from Hong KongAuthority-reported	Hong Kong vessel arrivals & departures (incl. VTMS daily reports)
Sep 30, 2019, 04:19 UTC	Reported arrival at Hong KongAuthority-reported	Hong Kong vessel arrivals & departures (incl. VTMS daily reports)

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

Year	CO₂ emitted	Fuel burned	Time at sea	CO₂ / n mile
2020	19,891 t	6,366 t	89 days	732 kg
2022	5,373 t	1,709 t	38 days	635 kg
2025	0 t	0 t	0 days	—

Technical efficiency: EIV (2.56 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Hong Kong HKHKG	Arrival	Sep 30, 2019, 04:19 UTC	SLA	Hong Kong vessel arrivals & departures (incl. VTMS daily reports)

Records published by the authority named on each row. Earliest record for this ship: September 30, 2019.

Source: Marine Department, HKSAR Government — DATA.GOV.HK. Licence: DATA.GOV.HK Terms and Conditions.

Frequently asked questions

Where is ROBERTA B now?: ROBERTA B (Oil tanker, Liberia flag) was last seen on AIS on Jul 28, 2026, 12:54 UTC, under way at 1.4 kn, in the Mediterranean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is ROBERTA B?: ROBERTA B is an oil tanker sailing under the flag of Liberia, built in 2012 by Dalian Shipbuilding Industry Company. The vessel is 330 m long and has a gross tonnage of 157,048.
Who is recorded as the owner or manager of ROBERTA B?: Oak tanker corporation is recorded as ISM manager for ROBERTA B (source: EU MRV (THETIS-MRV) emissions; reporting year 2025). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for ROBERTA B?: Voydar has no matched sanctions record displayed for ROBERTA B from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for ROBERTA B. Missing records do not establish whether the ship has been detained.

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