Carrier profile · USDOT 2120653 · MC-739224 · Updated Jul 29, 2026

DIAMOND B OPERATING LLC

DBA DIAMOND B ENERGY SERVICES

129 power unitsavg 12.9 yrRegional · 4 statesLUBBOCK, TX63/100
NO OPERATING AUTHORITYMC-739224 NO AUTHORITYHAZMAT
Verified linksdiamondbenergy.comFMCSA 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 25.9%24-mo cumulative
050%nat'l 22.26%
Driver OOS 2.6%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 139 vehicle and 151 driver inspections over 24 months.

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

17.9% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 17.4 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

150 inspections in the charted months · busiest month Apr '26 · 14

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
≈0.6 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 129-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
129
Inspections · 24 mo
151
Annualized
≈76 / yr
Coverage
≈0.6 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

19%
Unsafe Driving
Vektor peer est.
67%
Hours-of-Service
Vektor peer est.
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
79%
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 Maintenance83 · 10 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving50 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance38 · 27 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance34 · 12 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance33 · 3 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance29 · 4 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance17 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance16 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance16 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance13 · 0 OOS

ELD & hours-of-service

21 hours-of-service / ELD violations on record · most recent May 30, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

9ELD device issues
3No log / no ELD
6False logs
0Drove over hours

Trending worse — 100% of ELD violations are in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 22 total · 8 in 24 mo

22
Total crashes
8
In last 24 mo
1
Fatal
10
Injury
YearCrashesFatalInjuryTow
20264024
20253022
20243013
20233023
20223123
20182002
20171001
20152002
20131011
DateStateFatalitiesInjuriesTow-away
Mar 31, 2026TX00Yes
Mar 25, 2026TX01Yes
Mar 8, 2026LA00Yes
Feb 7, 2026TX01Yes
Sep 6, 2025TX01No
Jun 26, 2025TX00Yes
Mar 14, 2025TX02Yes
Sep 15, 2024TX00Yes
Jul 18, 2024TX00Yes
Mar 24, 2024TX01Yes
Oct 18, 2023TX00Yes
Sep 26, 2023TX01Yes
Sep 19, 2023TX01Yes
Jun 10, 2022TX00Yes
Feb 28, 2022TX03Yes
Feb 27, 2022TX11Yes
Jul 16, 2018TX00Yes
Jan 3, 2018TX00Yes
Jun 29, 2017TX00Yes
Dec 12, 2015TX00Yes
Jan 10, 2015TX00Yes
Oct 22, 2013TX03Yes