Carrier profile · USDOT 1582423 · MC-667437 · Updated Jun 13, 2026

Diamond Oil Field Services Inc

20 power unitsavg 6.1 yrLocal · 1 statesEL RENO, OK70/100
AUTHORITY STATUS UNKNOWNMC-667437 STATUS UNKNOWN
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 0.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 5.6%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 11 vehicle and 18 driver inspections over 24 months.

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

0.0% · 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

17 inspections in the charted months · busiest month Sep '25 · 3

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.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.5 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 20-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
20
Inspections · 24 mo
18
Annualized
≈9 / yr
Coverage
≈0.5 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

50%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
32%
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 Driving18 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance3 · 0 OOS
  • 392.16 Failure to use seat beltUnsafe Driving3 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance1 · 0 OOS
  • 393.25 Lighting device requirementsVehicle Maintenance1 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 22 inspections — a clean logging history.

Crash history· 10 total · 1 in 24 mo

10
Total crashes
1
In last 24 mo
1
Fatal
3
Injury
YearCrashesFatalInjuryTow
20241001
20211001
20191101
20183023
20172002
20131011
20111001
DateStateFatalitiesInjuriesTow-away
Sep 5, 2024OK00Yes
Jan 21, 2021OK00Yes
Feb 27, 2019OK10Yes
Oct 18, 2018OK01Yes
Oct 14, 2018OK01Yes
Mar 29, 2018OK00Yes
Dec 8, 2017OK00Yes
Aug 23, 2017OK00Yes
Jun 26, 2013OK01Yes
Aug 25, 2011OK00Yes