CL

COS LLC

DOT 2496282MC 1376430ActiveMotor CarrierInterstateBERKLEY REGIONAL INSURANCE COMPANYWILLISTON, ND

COMPANY

Authority since
2022-03-16
MCS-150
2026-01-29 · 251,164 mi (2025)
Fleet
20 units · — trailers · 19 drivers

ADDRESS

Physical
501 48TH AVE W
WILLISTON, ND 58801
Mailing
PO BOX 1472
WILLISTON, ND 58802

CONTACT

Phone
7015721832
Email
CASTLEOIL.BOOKKEEPING@GMAIL.COM

OFFICERS

Primary Officer

OPERATION & CARGO

Operation classification
Authorized For Hire
Specialty
Tanker / Bulk Liquids
Cargo types
2
Liquids / GasesOilfield Equipment
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads.
AUTHORITY
54 mo
Active authority
INSURANCE
1 active
BERKLEY REGIONAL INSURANCE COMPANY
RISK GRADE
Moderate Risk
3 risk factors · 2 strengths
OOS RATE
50.0%
10 / 20 inspections

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Checking local VIN index…

Moderate Risk

22/100 risk points3 risk factors · 2 strengths · 5 data pointsmedium confidence

Weighted heuristic: crashes are decayed by recency and normalized per 100 power units, out-of-service and violation rates use a rolling 24-month window, plus FMCSA BASIC alerts and the CarrierIntel Safety Score (which also decays when compliance has not been verified by a recent inspection). Not the official FMCSA SMS score.

SAFETY PERFORMANCE

Crash Record
7 crashes · 0 fatal · 3 with injuries · 7 tow-away
Clean Inspection Rate
50% — 10 clean of 20 inspections
Out-of-Service Rate
50.0% — driver OOS 6, vehicle OOS 8

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
1 historical event(s) on file
MCS-150 Filing
Last filed 2026-01-29

INSURANCE

Active Coverage
1 active policy(ies) · total max coverage $1,000,000

SUMMARY

7.5 crashes per 100 trucks/yr
5.0 injury crashes per 100 trucks/yr
1 FMCSA BASIC above intervention threshold
Active insurance on file
Coverage $1.0M

Other motor carriers in Williston, ND

All carriers in Williston, ND

More carriers in North Dakota