Carrier profile · USDOT 2496282 · MC-1376430 · Updated Jun 13, 2026

COS LLC

DBA CASTLE OILFIELD SERVICES

20 power unitsavg 14 yrRegional · 3 statesWILLISTON, ND74/100
CARRIER ACTIVEMC-1376430 ACTIVERATED SATISFACTORY
Verified linksFMCSA SAFERCallEmail
Observed fleet · trailing 24 mo daily
20Power units
6 observed · MCS-150
2Trailers seen
Decoded · vPIC
14.0Avg age (yr)
2004–2023 · vPIC
Call dispatch(701) 572-1832Email dispatchCASTLEOIL.BOOKKEEPING@GMAIL.COM

Load decision · FMCSA snapshot · Jun 13, 2026

Review before loading

Operating, but with flags a broker should weigh before tendering freight.

Active operating authorityInsurance on fileVehicle out-of-service rate well above average
USDOT registration12 yr registered
Active for-hire
Insurance (BIPD)$1M in force
FMCSA L&I
Vehicle OOS · 24-mo57.1%
▲ 22.26% nat'l
Crashes · fatal0
3 in 24 mo
Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet typeIdentity

Asset-based

20 power units. Brokers price each fleet type apart.

Fleet age vs peersOlder

14 yr

Model years 2004–2023 · peer benchmark unavailable.

Identity stabilityStable

12 yr unchanged

Same registration since 2014 — no chameleon / reincarnation signal.

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Verification summaryAuthority, insurance, safety and identity facts for COS LLC.

COS LLC (USDOT 2496282) has a Vektor safety score of 74/100 and a Review before loading verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier holds active common for-hire operating authority per FMCSA L&I as of Jun 13, 2026.

It has an active BIPD insurance filing with a $1,000,000 limit in force from BERKLEY REGIONAL INSURANCE COMPANY effective Mar 4, 2022 in FMCSA L&I's current snapshot as of Jun 13, 2026.

Its vehicle out-of-service rate was 57.1% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 10 roadside inspections in the last 24 months — 7 vehicle-level and 10 driver-level — across 3 states, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 3 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.

It reports 20 power units and 19 drivers in its most recent MCS-150 filing dated Jan 29, 2026.

It has an FMCSA safety rating of Satisfactory assigned Apr 3, 2026 in the federal record refreshed Jun 13, 2026.

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Frequently asked

What is COS LLC's USDOT number?

COS LLC's USDOT number is 2496282, and its motor carrier number is MC-1376430.

Is COS LLC authorized to operate?

As of 2026-06-13, COS LLC is active in the FMCSA register with common, contract, broker operating authority on file.

What is COS LLC's safety record?

COS LLC has a 57.1% vehicle out-of-service rate (national average 22.26%) across 20 roadside inspections, with 3 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 74/100 (tier: review).

How big is COS LLC's fleet?

COS LLC operates 20 power units and 19 drivers per its most recent MCS-150 filing.

Where is COS LLC based?

COS LLC is based in WILLISTON, ND, with roadside inspections recorded across 3 states.

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