License Plate TX R552156 (Texas) — Iron Rock Energy Services Llc
USDOT 4137521 · 2014 International LF687
Recorded vehicle, plate and carrier history
These are dated observations in the records available to us. They do not establish ownership, a sale, a transfer date, or continuous use between observations. The latest observation may not describe today’s vehicle or carrier.
| Observed dates | VIN | Plate | Reported carrier |
|---|---|---|---|
| 2025-12-04 | 3HSDJAPR9EN171389 | TX R552156 | IRON ROCK ENERGY SERVICES LLC · USDOT 4137521 |
| 2025-03-06 | 3HSDJAPR9EN171389 | TX R552156 | IRON WHEEL ENERGY SERVICES LLC · USDOT 3476160 |
Evidence: FMCSA inspection observations and retained snapshots of our vehicle records. Coverage is incomplete; an unreported change cannot be dated from these records.
Most recently recorded carrier for this plate
Iron Rock Energy Services Llc Active
- USDOT
- 4137521
- MC
- 1585638
- Status
- Active
- Type
- Motor Carrier
- Based in
- Midland, TX
- Power units
- 10
- Drivers
- 10
- Inspections (24 mo)
- 1
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 100%
Carrier recorded at the latest inspection in the available records (2025-12-04). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.This plate has also been operated by 1 other carrier (listed below).
What this means
License plate TX-R552156 appears in FMCSA inspection records 2 times. Recorded on one vehicle: VIN 3HSDJAPR9EN171389 (2014 International LF687). Operated by 2 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Iron Rock Energy Services Llc (USDOT 4137521). Vehicle make on file: International (INTL) (TRUCK TRACTOR). 1 out-of-service result across all inspections.
About this plate
Commercial license plate TX-R552156 (Texas) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2024-09-16 to 2025-12-04. The latest inspection was in New Mexico, a Level II — walk-around inspection of the driver and the vehicle. That is outside the plate's issuing jurisdiction (Texas).
Vehicle on this plate
This plate is associated with a single vehicle, a 2014 International LF687 — VIN 3HSDJAPR9EN171389 (truck tractor).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 2 inspections on FMCSA record. The records show 1 out-of-service violation across 2 inspections. OOS breakdown: 1 vehicle. The leading violation category is Vehicle Maintenance (5). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operators
2 carriers have operated vehicles under this plate (most recent first): Iron Rock Energy Services Llc (USDOT 4137521) on 2025-12-04; Iron Wheel Energy Services Llc (USDOT 3476160) from 2024-09-16 to 2025-03-06.
Vehicle detail (inspections per unit)
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 5 | ⚠ High |
| Unsafe Driving | 0 | ✓ Clean |
| Driver Fitness | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |