Carrier profile · USDOT 527966 · Updated Jun 13, 2026

O'brien Rock Company Inc

72 power unitsavg 11.9 yrRegional · 4 statesSAINT PAUL, KS74/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 37.5%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 8 vehicle and 17 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

50.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 29.0 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

17 inspections in the charted months · busiest month Feb '25 · 2

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
0.1 / unit·yr
thin signalabundant signal
Few roadside inspections for a 72-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
72
Inspections · 24 mo
17
Annualized
9 / yr
Coverage
0.1 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

6%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
35%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving14 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance9 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance5 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance4 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance3 · 0 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance2 · 0 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance2 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance2 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance2 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1 · 1 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 28 inspections — a clean logging history.

Crash history· 46 total · 3 in 24 mo

46
Total crashes
3
In last 24 mo
3
Fatal
17
Injury
YearCrashesFatalInjuryTow
20261011
20251011
20242002
20232012
20222012
20212022
20204014
20192002
20182002
20172012
20163013
20152002
20144004
20131001
20121001
20102012
20071011
20062012
20051010
20033203
20002112
19991011
19963022
DateStateFatalitiesInjuriesTow-away
Aug 7, 2026MO01Yes
Mar 18, 2025MO01Yes
Dec 30, 2024KS00Yes
Jun 10, 2024AR00Yes
Sep 7, 2023KS00Yes
Mar 8, 2023AR01Yes
Dec 9, 2022KS01Yes
Sep 23, 2022MO00Yes
Sep 13, 2021KS01Yes
Sep 3, 2021KS01Yes
Nov 23, 2020MO00Yes
May 6, 2020KS00Yes
Feb 7, 2020KS00Yes
Jan 10, 2020MO02Yes
Nov 7, 2019KS00Yes
Nov 5, 2019KS00Yes
Oct 9, 2018MO00Yes
Sep 7, 2018KS00Yes
Jul 6, 2017KS00Yes
Jan 11, 2017KS01Yes
Sep 12, 2016KS00Yes
Jun 1, 2016MO01Yes
Mar 16, 2016KS00Yes
Sep 28, 2015KS00Yes
Apr 23, 2015KS00Yes