WINDSOR KNUTSEN — Know Your Vessel

Updated: 2026-07-25 | Source: ship.rootz.global | Data: OFAC, EIA, EU MRV, GFW, AIS, USCG
Flag State
NORWAY
Type
Oil tanker
Built
2007
19 years old
DWT
25,000

Present Location

Last seen at
RIO DE JANEIRO
BRA
Arrived
2025-01-13
Departed
2025-01-23
549d ago

Risk Assessment

Carbon Intensity (CII)

Rating (2022)
Unrated
CO2 Emissions
4,849
tonnes/year
Distance
8,321
nm/year

EU MRV 2022: 4,849 t CO2, 1,536 t fuel, 582.79 kg CO2/nm

Voyage Pattern

Port Visits
99
Avg Dwell
53h
2d per port
Port Utilization
37.6%
time in port
Dark Events
1
13h total

Primary route: SANTOS BASIN → ANGRA DOS REIS → PORTO DO ACU

Data period: 2023-06-24 to 2025-01-23

PortCountryVisits
SANTOS BASINBRA27
ANGRA DOS REISBRA22
PORTO DO ACUBRA13
BOTAFOGOBRA6
CAMPOS BASINBRA4

Recent port calls:

ArrivalDeparturePortCountryDuration
2025-01-132025-01-23RIO DE JANEIROBRA10.3d
2025-01-082025-01-12ANGRA DOS REISBRA4.3d
2025-01-032025-01-04SANTOS BASINBRA1.3d
2024-12-302024-12-31SANTOS BASINBRA1.4d
2024-12-202024-12-22PORTO DO ACUBRA1.5d
2024-12-072024-12-10ANGRA DOS REISBRA4d
2024-11-292024-11-30PORTO DO ACUBRA1.3d
2024-11-252024-11-27SANTOS BASINBRA1.2d
2024-11-232024-11-25BRA-281BRA2.5d
2024-11-222024-11-23BRA-302BRA0.2d
2024-11-212024-11-21SANTOS BASINBRA0.5d
2024-11-202024-11-21SANTOS BASINBRA0.7d
2024-11-152024-11-19ANGRA DOS REISBRA4.4d
2024-11-132024-11-14RIO DE JANEIROBRA1.1d
2024-10-302024-11-04ANGRA DOS REISBRA5.3d
2024-10-252024-10-26SANTOS BASINBRA1.7d
2024-10-162024-10-22ANGRA DOS REISBRA6.6d
2024-09-272024-09-29SANTOS BASINBRA1.9d
2024-09-262024-09-27SANTOS BASINBRA1.5d
2024-09-232024-09-24RIO DE JANEIROBRA1d

AIS Dark Periods

1 events, 13 hours total darkness

StartEndHoursAIS OffAIS OnDistanceImplied SpeedAnalysis
2026-05-172026-05-1813HIGH 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

99 events, 2308 hours total (stationary at sea — possible STS transfers)

StartHoursPositionSpeedRisk Zone
2024-06-166-25.5, -42.91.4 kn
2024-05-3027-25.6, -42.90.0 kn
2024-05-1813-25.7, -43.20.0 kn
2024-05-1641-25.6, -43.20.5 kn
2024-05-168-25.6, -43.20.9 kn
2024-05-1518-25.7, -43.20.1 kn
2024-04-253-25.2, -46.70.4 kn
2024-04-2423-25.2, -46.60.2 kn
2024-04-243-25.1, -46.70.7 kn
2024-04-2228-25.2, -42.90.1 kn

STS Encounter Detection

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

2024-04-24 — -25.2, -46.6

VesselIMOStatusDurationSpeed
NEW WEALTH9706384Clean29h0.4 kn

2024-04-24 — -25.1, -46.7

VesselIMOStatusDurationSpeed
NEW WEALTH9706384Clean29h0.4 kn

2024-03-29 — -25.6, -42.8

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean35h0.0 kn

2024-03-29 — -25.6, -42.9

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean35h0.0 kn

2024-03-22 — -22.2, -40.4

VesselIMOStatusDurationSpeed
FSO PARGO9255696Clean27807h0.0 kn

2024-02-28 — -25.5, -42.8

VesselIMOStatusDurationSpeed
DAN SABIA9513438Clean68h0.0 kn
BRASIL 20149623879Clean44h0.2 kn

2024-02-28 — -25.5, -42.9

VesselIMOStatusDurationSpeed
DAN SABIA9513438Clean68h0.0 kn
BRASIL 20149623879Clean44h0.2 kn

2024-02-12 — -25.6, -42.8

VesselIMOStatusDurationSpeed
DAN SABIA9513438Clean51h0.1 kn
RIO 20169623867Clean10h1.2 kn
RIO 20169623867Clean30h0.1 kn

2024-02-02 — -25.2, -46.8

VesselIMOStatusDurationSpeed
SEAVOYAGER9318096Clean26h0.3 kn

2024-02-01 — -25.1, -46.6

VesselIMOStatusDurationSpeed
SEAVOYAGER9318096Clean27h0.1 kn
ZOURVA9679593Clean266h0.0 kn

2024-01-20 — -24.9, -42.5

VesselIMOStatusDurationSpeed
ELKA LEBLON9625712Clean27h0.1 kn

2024-01-12 — -25.5, -42.8

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean47h0.0 kn

2024-01-12 — -25.6, -42.7

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean47h0.0 kn

2024-01-08 — -25.5, -42.7

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean47h0.0 kn
ELKA PARANA9625724Clean20h0.1 kn

2023-12-22 — -24.6, -42.3

VesselIMOStatusDurationSpeed
JOSE DO PATROCINIO9453860Clean140h0.1 kn
BRASIL 20149623879Clean28h0.1 kn

2023-11-20 — -24.6, -42.3

VesselIMOStatusDurationSpeed
ELKA LEBLON9625712Clean26h0.1 kn
ELKA LEBLON9625712Clean30h0.1 kn

2023-11-10 — -25.2, -42.9

VesselIMOStatusDurationSpeed
RIO GRANDE9492062Clean25h0.1 kn
ELKA LEBLON9625712Clean38h0.1 kn

2023-11-01 — -25.0, -42.7

VesselIMOStatusDurationSpeed
ELKA LEBLON9625712Clean3h1.4 kn
ELKA PARANA9625724Clean4h1.7 kn

2023-09-25 — -34.9, -53.8

VesselIMOStatusDurationSpeed
TEXAS9623685Clean28h0.5 kn

2023-07-17 — -25.4, -42.8

VesselIMOStatusDurationSpeed
MADRE DE DEUS9492050Clean25h0.0 kn

2023-07-03 — -22.1, -39.8

VesselIMOStatusDurationSpeed
CASCADE SPIRIT9399492Clean32h0.2 kn
CASCADE SPIRIT9399492Clean4h1.1 kn
CASCADE SPIRIT9399492Clean18h1.3 kn
CASCADE SPIRIT9399492Clean17h1.0 kn
CASCADE SPIRIT9399492Clean3h1.3 kn
CASCADE SPIRIT9399492Clean3h1.9 kn

2023-07-03 — -22.1, -39.7

VesselIMOStatusDurationSpeed
CASCADE SPIRIT9399492Clean32h0.2 kn

2023-07-02 — -22.1, -39.7

VesselIMOStatusDurationSpeed
CASCADE SPIRIT9399492Clean32h0.2 kn

2023-07-02 — -22.1, -39.8

VesselIMOStatusDurationSpeed
CASCADE SPIRIT9399492Clean32h0.2 kn

2023-07-02 — -22.1, -39.9

VesselIMOStatusDurationSpeed
CASCADE SPIRIT9399492Clean32h0.2 kn

14 unique vessels encountered, 0 sanctioned

USCG Registration

StatusActive
Call SignLAEE7
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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