SEAWAYS WATCH HILL — Know Your Vessel

Updated: 2026-07-25 | Source: ship.rootz.global | Data: OFAC, EIA, EU MRV, GFW, AIS, USCG
Flag State
MARSHALL ISLANDS
Type
Chemical tanker
Built
2015
11 years old
DWT
25,000

Present Location

Last seen at
YOKOHAMA
JPN
Arrived
2025-09-22
Departed
2025-09-25
304d ago

Risk Assessment

Carbon Intensity (CII)

Rating (2023)
Unrated
CO2 Emissions
1,544
tonnes/year
Distance
5,627
nm/year
YearRatingRatio
2023Unrated
2022Unrated
2020Unrated
2019Unrated
2018Unrated

EU MRV 2024: 1,613 t CO2, 510 t fuel

Voyage Pattern

Port Visits
99
Avg Dwell
74h
3d per port
Port Utilization
38.4%
time in port
Dark Events
4
112h total

Primary route: CORPUS CHRISTI → PORT ARTHUR → HOUSTON

Data period: 2023-07-27 to 2025-09-25

PortCountryVisits
CORPUS CHRISTIUSA6
PORT ARTHURUSA3
HOUSTONUSA3
BOSTONUSA3
PUERTO NUEVOCOL2

Recent port calls:

ArrivalDeparturePortCountryDuration
2025-09-222025-09-25YOKOHAMAJPN3d
2025-09-142025-09-16TANDAYAGPHL2d
2025-09-112025-09-14LANGTADPHL2.2d
2025-09-042025-09-06ULSANKOR2.1d
2025-08-182025-08-19USA-1627USA0.3d
2025-08-172025-08-18SELBYUSA1.7d
2025-08-152025-08-16SAUSALITOUSA1.2d
2025-07-302025-07-30KOR0.3d
2025-07-282025-07-28DAESANKOR0.3d
2025-07-262025-07-28KOR1.6d
2025-07-152025-07-17MYS2d
2025-07-132025-07-15PORT KLANGMYS2.6d
2025-07-052025-07-07VNM2.2d
2025-07-012025-07-05VNM3.7d
2025-06-302025-07-01VNM1.2d
2025-06-292025-06-30VNM0.4d
2025-06-192025-06-23KOR3.8d
2025-05-162025-06-16NINGBOCHN30.5d
2025-04-262025-05-09VNM13.1d
2025-03-282025-03-28USA0.8d

AIS Dark Periods

4 events, 112 hours total darkness

StartEndHoursAIS OffAIS OnDistanceImplied SpeedAnalysis
2026-04-252026-04-2614HIGH RISK ZONE
2024-10-272024-10-2823HIGH RISK ZONE
2024-01-092024-01-1023HIGH RISK ZONE
2023-08-212023-08-2352HIGH 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

43 events, 618 hours total (stationary at sea — possible STS transfers)

StartHoursPositionSpeedRisk Zone
2026-02-052033.4, 128.51.1 kn
2026-02-05133.8, 128.41.9 kn
2026-02-05533.9, 128.41.6 kn
2026-01-201042.0, 141.61.5 kn
2026-01-19442.1, 141.71.5 kn
2026-01-17142.1, 141.91.7 kn
2026-01-17242.1, 141.61.8 kn
2026-01-17242.1, 141.51.8 kn
2026-01-162242.1, 141.60.7 kn
2026-01-151142.1, 141.61.5 kn

STS Encounter Detection

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

2023-12-27 — 51.4, -5.7

VesselIMOStatusDurationSpeed
BRO ANNA9344435Clean4h1.5 kn
SERENEA9405423Clean3h1.1 kn
KARINA THERESA9428451Clean2h0.9 kn

2023-12-26 — 51.5, -5.7

VesselIMOStatusDurationSpeed
KARINA THERESA9428451Clean3h1.3 kn

3 unique vessels encountered, 0 sanctioned

USCG Registration

StatusActive
Call SignV7KN5
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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