S & T Oilfield Services Llp is an active interstate carrier based in Elk City, OK.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 14 | 0 | 0 |
| Tractors | 5 | 0 | 0 |
| Trailers | 65 | 0 | 0 |
| Total Power Units | 19 | ||
Distinct vehicles · 24 mo
vs 19 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 66% | 91% | Around peer average |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 89% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 82% | 91% | 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 | 2 | — | 6.67% |
| Vehicle | 0 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 20 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Dec 23, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Dec 4, 2025 | OK | STRAIGHT TRUCK | 1 | 0 |
| Jun 6, 2025 | OK | TRUCK TRACTOR | 1 | 1 |
| May 20, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 0.31 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 8 | 7.52 | — |
| Driver Fitness | 2 | 0.83 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 3 states. Top state OK accounts for 75% of activity. Activity outside home state (OK): 25%.
| 7 |
| 7 |
| Driver Fitness | 2 | 2 | 2 |
| Unsafe Driving | 2 | 0 | 0 |
| May 20, 2025 |
| OK |
| TRUCK TRACTOR |
| 0 |
| 0 |
| May 19, 2025 | CO | STRAIGHT TRUCK | 4 | 1 |
| Jan 15, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Jan 15, 2025 | WY | STRAIGHT TRUCK | 5 | 2 |
| Jan 15, 2025 | WY | STRAIGHT TRUCK | 7 | 3 |
| Dec 2, 2024 | OK | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Dec 4, 2025 | 39375CTAOTDLT232 | Tires - Less than 2/32 inch tread depth | Vehicle Maintenance | — |
| Jun 6, 2025 | 3939BLTSONR | Lighting - Turn signal - Any obscured not on the rearmost vehicle. | Vehicle Maintenance | Yes |
| May 19, 2025 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |
| May 19, 2025 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| May 19, 2025 | 3939ALBL | Lighting - Backup lamp inoperative | Vehicle Maintenance | — |
| May 19, 2025 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Jan 15, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Jan 15, 2025 | 39348ABIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Vehicle Maintenance | — |
| Jan 15, 2025 | 39360D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Vehicle Maintenance | — |
| Jan 15, 2025 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |