Wco Oilfield Services Inc is an active interstate carrier based in Rifle, CO.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 4 | 0 | 0 |
| Tractors | 22 | 0 | 0 |
| Trailers | 24 | 0 | 0 |
| Total Power Units | 26 | ||
Distinct vehicles · 24 mo
vs 26 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 91% | 96% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 86% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 86% | 94% | Worse than most peers |
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 | 8 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 21 | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Nov 13, 2025 | CO | TRUCK TRACTOR | 0 | 0 |
| Oct 7, 2025 | CO | TRUCK TRACTOR | 1 | 0 |
| Sep 5, 2025 | CO | TRUCK TRACTOR | 4 | 2 |
| Aug 12, 2025 | CO | STRAIGHT TRUCK | 1 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 1.04 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 7 | 8.36 | — |
| Driver Fitness | 1 | 0.40 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state CO accounts for 93% of activity. Activity outside home state (CO): 7%.
| 7 |
| Unsafe Driving | 2 | 1 | 0 |
| Driver Fitness | 1 | 1 | 1 |
| Jul 10, 2025 |
| CO |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| May 17, 2025 | UT | TRUCK TRACTOR | 7 | 3 |
| May 8, 2025 | CO | TRUCK TRACTOR | 2 | 0 |
| Apr 11, 2025 | CO | STRAIGHT TRUCK | 4 | 0 |
| Apr 5, 2025 | CO | TRUCK TRACTOR | 2 | 2 |
| Nov 18, 2024 | CO | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 7, 2025 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Sep 5, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Sep 5, 2025 | 39351CBLPW | Air Brake - Low pressure warning device missing/inoperative | Vehicle Maintenance | Yes |
| Sep 5, 2025 | 3963A1BALAC | Brake - Audible air leak from a brake chamber | Vehicle Maintenance | — |
| Sep 5, 2025 | 3963A1BALR | Air Brake - Fails air loss rate test | Vehicle Maintenance | Yes |
| Aug 12, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| May 17, 2025 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |
| May 17, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| May 17, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| May 17, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |