Sun Well Service Inc is an active interstate carrier based in Williston, ND.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 91 | 0 | 0 |
| Tractors | 2 | 0 | 0 |
| Trailers | 54 | 0 | 0 |
| Total Power Units | 93 | ||
Distinct vehicles · 24 mo
vs 93 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 100% | 98% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 100% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 0 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 1 state. Top state ND accounts for 100% of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 2 | 1 | 2 |
| Driver Fitness | 1 | 1 | 1 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 6, 2026 | ND | STRAIGHT TRUCK | 0 | 0 |
| Oct 7, 2025 | ND | STRAIGHT TRUCK | 1 | 1 |
| Oct 1, 2024 | ND | STRAIGHT TRUCK | 0 | 0 |
| Apr 2, 2024 | ND | STRAIGHT TRUCK | 2 | 2 |
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| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 1 | 16.00 | — |
| Driver Fitness | 1 | 3.75 | — |
| Controlled Substances | 0 | 0.00 | — |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 7, 2025 | 39111B5LNCDLNVE | License - Endorsement - Operate a CMV without proper endorsement or in violation of restriction. NOTE: Other than a 391.41 violation. | Driver Fitness | Yes |
| Apr 2, 2024 | 39343DBMA | Brake - Breakaway not attached to the towing vehicle | Vehicle Maintenance | Yes |
| Apr 2, 2024 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |