USDOT #2496282
Active Registration
20 Commercial Trucks
19 Drivers
Authorized For-Hire
Non-Hazmat
COS LLC
Doing Business As: CASTLE OILFIELD SERVICES
Williston, ND 58801 • FMCSA Census Record • Active Federal Registration
Verify FMCSA SAFER Snapshot
Independent Mirror of FMCSA Public Records
40
CarrierShield™ Risk Score
v1.0 Live
🚨 CRITICAL RISK: DO NOT DISPATCH
Critical Enforcement Alerts:
⛔
CHAMELEON_RISK: Shares contact information with DOT# 2136935 (STATELINE SERVICES INC) - Unsatisfactory = Unfit
⛔
CHAMELEON_RISK: Shares contact information with DOT# 2136935 (STATELINE SERVICES INC) - Involuntarily Revoked (03/08/2022)
⛔
CHAMELEON_RISK: Shares contact information with DOT# 2136935 (STATELINE SERVICES INC) - Active OOS Order (Unsatisfactory = Unfit)
Active OOS: 0
Revocations: 0
Pending Cancellations: 0
Crashes (24mo): 3 (0 Fatal)
Evaluated in real-time against 4.8M FMCSA records
Fleet Rigs
20
Commercial Power Units
CDL Drivers
19
Licensed CDL Drivers
Authority
For-Hire
Active Operating Authority
Safety & Cargo
Standard Freight
HM Safety Registry
FMCSA Safety Records
24-Month Rolling Window
Commercial Motor Vehicle Crash History
Total Crashes
3
Fatalities
0
Injuries
2
Tow-Aways
3
Recent Incident Reports (Federal Crash Repository):
| Report # | Date | State | Fatalities | Injuries | Tow-Away | Highway & Weather |
|---|---|---|---|---|---|---|
| ND0001174757 | 18-NOV-25 | ND | 0 | 1 | Yes | Two-Way Trafficway Divided Unprotected Median (No Adverse Conditions) |
| ND0001181550 | 17-MAY-26 | ND | 0 | 1 | Yes | Two-Way Trafficway Divided Unprotected Median (Rain) |
| MT2650218198 | 15-APR-26 | MT | 0 | 0 | Yes | Two-Way Trafficway Divided Unprotected Median (No Adverse Conditions) |
FMCSA Financial Responsibility
Form BMC-91X & BMC-84 Filings
Commercial Insurance & Surety Bond Coverage
BIPD/Primary
Active Filing
BERKLEY REGIONAL INSURANCE COMPANY
Policy #ECA3150008-13
Coverage: $1,000,000
Effective: 03/04/2022
Official Public Record
•
MCS-150 Biennial Compliance
Commercial Operating Census: COS LLC
Commercial carrier data verified against the U.S. Department of Transportation federal safety database. Last biennial census update reported on 29-JAN-26.
Fleet & Equipment Breakdown
- Commercial Power Units (Trucks)
- 20
- Commercial Drivers (CDL)
- 19
- Operation Scope
- Interstate
- Operating Authority
- Authorized For-Hire
- Hazmat Transport (HM)
- No (Standard Freight)
- Passenger Carrier (PC)
- No
Official Physical Location & Contact
- Physical Address
-
501 48Th Ave W
Williston, ND 58801 Open in Google Maps → - Telephone
- (701) 572-1832
- Official Email
- [email protected]
- MCS-150 Update Date
- 29-JAN-26
- Annual Fleet Mileage
- 345,671 miles
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Questions or Feedback?
Have feedback or ideas for CarrierIndex? Email [email protected]. To update official company records, carriers must file Form MCS-150 with the FMCSA.