John Bunning Transfer Co Inc is an active interstate carrier based in Rock Springs, WY.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 76 | 5 | 0 |
| Trailers | 270 | 28 | 0 |
| Total Power Units | 82 | ||
Distinct vehicles · 24 mo
vs 82 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 100% | 96% | Worse than most peers |
| HOS Compliance | 63% | 95% | Around peer average |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 63% | 89% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 0 | — | 6.67% |
| Vehicle | 0 | 11 | — | 22.26% |
| Hazmat | 1 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Apr 1, 2025 | 0 | 1 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 35 | 8 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 15, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Jan 12, 2026 | CO | TRUCK TRACTOR | 3 | 0 |
| Sep 10, 2025 | WY | STRAIGHT TRUCK | 0 | 0 |
| Sep 2, 2025 | WY | TRUCK TRACTOR | 2 | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 0.37 | — |
| HOS Compliance | 1 | 0.12 | — |
| Vehicle Maintenance | 12 | 5.91 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 5 states. Top state WY accounts for 76% of activity. Activity outside home state (WY): 24%.
| 12 |
| Unsafe Driving | 3 | 1 | 0 |
| Hours-of-Service Compliance | 1 | 0 | 0 |
| Aug 29, 2025 |
| WY |
| STRAIGHT TRUCK |
| 1 |
| 1 |
| Aug 26, 2025 | WY | STRAIGHT TRUCK | 2 | 0 |
| Jul 8, 2025 | WY | STRAIGHT TRUCK | 12 | 6 |
| Apr 9, 2025 | WY | STRAIGHT TRUCK | 0 | 0 |
| Apr 8, 2025 | WY | TRUCK TRACTOR | 1 | 0 |
| Mar 15, 2025 | WY | TRUCK TRACTOR | 6 | 3 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 12, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Jan 12, 2026 | 39395F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | — |
| Jan 12, 2026 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Sep 2, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Sep 2, 2025 | 3963A1TAOCV | Tires - All others in contact with a part of the vehicle | Vehicle Maintenance | — |
| Aug 29, 2025 | 3963A1TFCV | Tires - Front in contact with a part of the vehicle | Vehicle Maintenance | Yes |
| Aug 26, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Aug 26, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 8, 2025 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | Yes |
| Jul 8, 2025 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |