Mountain States Pressure Service 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 | 12 | 0 | 0 |
| Tractors | 12 | 0 | 0 |
| Trailers | 27 | 0 | 0 |
| Total Power Units | 24 | ||
Distinct vehicles · 24 mo
vs 24 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 72% | 95% | Around peer average |
| Driver Fitness | 86% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 67% | 92% | 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 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 22 | 2 | 8 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Nov 20, 2025 | PA | TRUCK TRACTOR | 1 | 0 |
| Aug 22, 2025 | PA | TRUCK TRACTOR | 3 | 0 |
| Feb 3, 2025 | PA | TRUCK TRACTOR | 0 | 0 |
| Aug 28, 2024 | UT | TRUCK TRACTOR | 4 | 1 |
Western Wyoming Beverages
No alertsRock Springs, WY · 25 units
Searle Brothers Construction Co Inc
No alertsRock Springs, WY · 27 units
Western Wyoming Beverages
No alertsRock Springs, WY · 28 units
Cannon Oil & Gas Well Service Inc
No alertsRock Springs, WY · 20 units
Ready Oilfield Service Inc
No alertsRock Springs, WY · 29 units
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 1 | 0.10 | — |
| Vehicle Maintenance | 6 | 10.00 | — |
| Driver Fitness | 2 | 0.20 | — |
| Controlled Substances | 0 | 0.00 | — |
Inspected in 3 states. Top state PA accounts for 71% of activity. Activity outside home state (WY): 86%.
| Driver Fitness | 2 | 0 | 0 |
| Hours-of-Service Compliance | 1 | 0 | 0 |
| May 24, 2024 |
| PA |
| STRAIGHT TRUCK |
| 6 |
| 2 |
| May 24, 2024 | PA | STRAIGHT TRUCK | 3 | 1 |
| Apr 2, 2024 | WY | STRAIGHT TRUCK | 8 | 4 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Nov 20, 2025 | 393104F3C | Cargo - Loose or unfastened tiedown | Vehicle Maintenance | — |
| Aug 22, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Aug 22, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Aug 22, 2025 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Aug 28, 2024 | 39345B2B | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Aug 28, 2024 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Aug 28, 2024 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Aug 28, 2024 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| May 24, 2024 | 39141AF | Operating a property-carrying vehicle without possessing a valid medical certificate. | Driver Fitness | — |
| May 24, 2024 | 39343 | No/improper breakaway or emergency braking | Vehicle Maintenance | Yes |