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

Network & Fraud

Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.

Last 12 months: 1 truck also ran under 1 other carrier

VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 2469139Some overlap is legitimate (leased or sold equipment); review alongside the other signals.

Shares a registration email domain with other carriers

@j4oilfield.com2 carriers: USDOT 3386052

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)144
Observed (24 mo)24
Shared w/ other carriers1

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Shared-VIN cross-links· units inspected under more than one USDOT

VINCarriersInspectionsFirst seenLast seen
5KJJABDR3BPBC207622Nov 6, 2024May 23, 2025

Owner / group view· confidence: email domain

Owner / group view

Affiliated authorities

Collapses 2 related authorities · joined by email domain

Authorities
2
Combined power
236
States
1
Oldest authority
Jan 26, 2007
Active now
1
  • 4JLJ LLC· viewingUSDOT 1600539
    144PU
  • 4JLJ LLCUSDOT 3386052
    92PU

Affiliated entities· hover to preview