Carrier profile · USDOT 1813088 · MC-658598 · Updated Jun 13, 2026

Guardian Oilfield Services Inc

60 power unitsavg 11.9 yrMulti-region · 15 statesWEATHERFORD, OK88/100
CARRIER ACTIVEMC-658598 ACTIVEHAZMAT
Verified linksFMCSA SAFER

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 9.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.9%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 100 vehicle and 113 driver inspections over 24 months.

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

11.1% · latest 6-mo window● Steady

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Holding steady 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

112 inspections in the charted months · busiest month Mar '25 · 18

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.

Well-monitored
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.9 / unit·yr
thin signalabundant signal
Within the expected band for a 60-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
Registered power units
60
Inspections · 24 mo
113
Annualized
≈57 / yr
Coverage
≈0.9 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

32%
Unsafe Driving
Vektor peer est.
16%
Hours-of-Service
Vektor peer est.
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
51%
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.

  • 393.9 Inoperative required lampsVehicle Maintenance24 · 2 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving21 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance13 · 5 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance8 · 0 OOS
  • 393.48 Brakes inoperativeVehicle Maintenance7 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance6 · 3 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance5 · 0 OOS
  • 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance3 · 2 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance3 · 0 OOS
  • 393.209 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 0 OOS

ELD & hours-of-service

5 hours-of-service / ELD violations on record · most recent Oct 17, 2024. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

1ELD device issues
1No log / no ELD
2False logs
1Drove over hours

0 ELD violations in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 29 total · 5 in 24 mo

29
Total crashes
5
In last 24 mo
2
Fatal
6
Injury
YearCrashesFatalInjuryTow
20261001
20252002
20242002
20232002
20221101
20201001
20194024
20185025
20172002
20165015
20152002
20132112
DateStateFatalitiesInjuriesTow-away
May 12, 2026TX00Yes
Jul 16, 2025OH00Yes
Jan 5, 2025KY00Yes
Dec 19, 2024GA00Yes
Nov 9, 2024LA00Yes
May 5, 2023KY00Yes
May 5, 2023KY00Yes
Apr 4, 2022TX10Yes
Jul 24, 2020TX00Yes
Nov 22, 2019OK00Yes
Jun 24, 2019OK01Yes
Feb 20, 2019OK00Yes
Jan 27, 2019OK01Yes
Oct 10, 2018TX01Yes
Aug 9, 2018TX00Yes
Jun 13, 2018OK00Yes
Mar 26, 2018OK00Yes
Mar 24, 2018OK01Yes
Sep 26, 2017OK00Yes
Sep 6, 2017OK00Yes
Sep 29, 2016OK00Yes
Sep 9, 2016OK00Yes
Jun 28, 2016OK00Yes
Apr 26, 2016OK00Yes
Jan 26, 2016TX01Yes