SILVER HEBA — Know Your Vessel

Updated: 2026-07-25 | Source: ship.rootz.global | Data: OFAC, EIA, EU MRV, GFW, AIS, USCG
Flag State
HONG KONG
Type
Oil tanker
Built
2016
10 years old
DWT
25,000

Present Location

Status
Location Unknown
No AIS position or port visit data available

Risk Assessment

Carbon Intensity (CII)

Rating (2023)
Unrated
CO2 Emissions
2,890
tonnes/year
Distance
13,734
nm/year
YearRatingRatio
2023Unrated
2022Unrated
2021Unrated
2019Unrated
2018Unrated

EU MRV 2024: 733 t CO2, 230 t fuel

Voyage Pattern

Port Visits
99
Avg Dwell
60h
2d per port
Port Utilization
36.8%
time in port
Dark Events
1
16h total

Primary route: HOUSTON → ROTTERDAM MAASVLAKTE → MONTREAL

Data period: 2023-08-14 to 2025-06-13

PortCountryVisits
HOUSTONUSA5
ROTTERDAM MAASVLAKTENLD3
MONTREALCAN3
FUJAIRAHARE3
ULSANKOR2

Recent port calls:

ArrivalDeparturePortCountryDuration
2025-06-122025-06-13MEX0.8d
2025-06-082025-06-11MEX3.2d
2025-06-042025-06-06HOUSTONUSA2.6d
2025-06-032025-06-03USA0.3d
2025-05-262025-05-27USA0.8d
2025-05-232025-05-26USA3.1d
2025-04-282025-05-04HUELVAESP6.1d
2025-04-242025-04-25GIBRALTARGIB0.5d
2025-04-222025-04-23MAR1.3d
2025-04-182025-04-22MAR3.7d
2025-04-162025-04-17TANGER MEDMAR1.4d
2025-03-272025-03-29PORT ARTHURUSA2.2d
2025-03-192025-03-19USA0.3d
2025-03-182025-03-19USA0.5d
2025-03-162025-03-18USA2.1d
2025-03-112025-03-16USA5.3d
2025-03-102025-03-11USA0.7d
2025-02-072025-02-23IJMUIDENNLD15.6d
2025-01-282025-01-29MARSAXLOKKMLT0.8d
2025-01-252025-01-27SANTA PANAGIAITA2.5d

AIS Dark Periods

1 events, 16 hours total darkness

StartEndHoursAIS OffAIS OnDistanceImplied SpeedAnalysis
2025-11-042025-11-0516HIGH RISK ZONE

ESTIMATED — implied speed = straight-line distance / dark hours. Actual route unknown. Reference: loaded VLCC ~12-14 kn, ballast ~15-16 kn, stationary <1 kn = possible STS or anchorage.

Loitering Events

26 events, 257 hours total (stationary at sea — possible STS transfers)

StartHoursPositionSpeedRisk Zone
2026-06-14544.4, -125.30.9 kn
2026-06-13344.3, -125.21.2 kn
2026-05-08235.8, 125.40.9 knHIGH RISK
2026-05-043936.1, 125.60.1 knHIGH RISK
2026-01-31618.8, -93.10.9 kn
2026-01-27118.9, -93.21.9 kn
2026-01-26218.8, -93.11.9 kn
2025-10-07219.0, -78.10.8 kn
2025-07-253424.8, -93.90.8 kn
2025-07-081724.8, -89.20.9 kn

STS Encounter Detection

Other vessels detected loitering at the same position and time (within ~30nm, overlapping window)

2026-01-31 — 18.8, -93.1

VesselIMOStatusDurationSpeed
PALMA9384033Clean8h1.2 kn
STI NOTTING HILL9706425Clean4h1.5 kn

2026-01-26 — 18.8, -93.1

VesselIMOStatusDurationSpeed
PALMA9384033Clean14h1.0 kn
ALPINE LIGHT9478717Clean9h1.3 kn

3 unique vessels encountered, 0 sanctioned

USCG Registration

StatusActive
Call SignVRPS5
Deficiency Count0
Detention Count0
Last Exam

Data sources: USCG CGMIX, EU MRV (EMSA), CII computed, Global Fishing Watch, GFW dark events. All records cryptographically attested on Polygon.

Data sources: U.S. Treasury (OFAC SDN), U.S. Energy Information Administration, European Maritime Safety Agency (EU MRV), U.S. Coast Guard (PSIX), Global Fishing Watch (GFW satellite AIS), AISStream.io. All data cryptographically attested on Polygon blockchain.

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