Carrier profile · USDOT 1600539 · Updated Jun 21, 2026

4JLJ LLC

DBA J4 OILFIELD SERVICES

144 power unitsavg 16.5 yrLocal · 2 statesROBSTOWN, TX80/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
Verified linksj4oilfield.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 40.0%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 — 30 vehicle and 31 driver inspections over 24 months.

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

30.0% · 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 28.4 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

31 inspections in the charted months · busiest month Dec '24 · 7

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 144-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
144
Inspections · 24 mo
31
Annualized
≈16 / yr
Coverage
≈0.1 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
.02measure
SMS · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
78%
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 Maintenance26 · 4 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance10 · 0 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving9 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance9 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance8 · 2 OOS
  • 393.78 Windshield wipersVehicle Maintenance5 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance5 · 2 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance3 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance3 · 3 OOS
  • 392.9 Failure to secure load / cargo not securedUnsafe Driving2 · 2 OOS

ELD & hours-of-service

1 hours-of-service / ELD violation on record · most recent Apr 21, 2024. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

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

Crash history· 10 total · 2 in 24 mo

10
Total crashes
2
In last 24 mo
0
Fatal
7
Injury
YearCrashesFatalInjuryTow
20261011
20251011
20232012
20191001
20183033
20171001
20151011
DateStateFatalitiesInjuriesTow-away
Feb 24, 2026TX01Yes
Feb 24, 2025TX01Yes
Sep 26, 2023TX00Yes
May 27, 2023TX01Yes
Jun 24, 2019TX00Yes
Dec 7, 2018TX01Yes
Nov 9, 2018TX01Yes
May 11, 2018TX02Yes
Jun 18, 2017TX00Yes
Apr 19, 2015TX01Yes