Chamberlain Oil Co Inc is an active interstate carrier based in Clontarf, MN.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 18 | 0 | 0 |
| Trailers | 35 | 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 | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 84% | 94% | Worse than most peers |
| HOS Compliance | 97% | 98% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better 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 | 0 | — | 22.26% |
| Hazmat | 3 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 10 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 12, 2026 | MN | TRUCK TRACTOR | 0 | 0 |
| Dec 4, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Nov 25, 2025 | MN | TRUCK TRACTOR | 3 | 0 |
| Oct 27, 2025 | MN | TRUCK TRACTOR | 1 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 1.30 | — |
| HOS Compliance | 3 | 1.60 | — |
| Vehicle Maintenance | 9 | 4.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 4 states. Top state MN accounts for 36% of activity. Activity outside home state (MN): 64%.
| 1 |
| 1 |
| Hazardous Materials Compliance | 8 | 0 | 0 |
| Hours-of-Service Compliance | 6 | 4 | 0 |
| Unsafe Driving | 4 | 1 | 0 |
| Oct 22, 2025 |
| MN |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Sep 8, 2025 | MN | STRAIGHT TRUCK | 1 | 0 |
| Jun 17, 2025 | SD | TRUCK TRACTOR | 2 | 0 |
| Jun 12, 2025 | MT | TRUCK TRACTOR | 0 | 0 |
| Jun 5, 2025 | MN | TRUCK TRACTOR | 2 | 0 |
| May 29, 2025 | SD | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Dec 4, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Nov 25, 2025 | 3953A1HOSPD | HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time | Hours-of-Service Compliance | — |
| Nov 25, 2025 | 3953A2HOSPD | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim | Hours-of-Service Compliance | — |
| Nov 25, 2025 | 3958A | HOS (Form) - Paper Log/Logging Programs Form and Manner | Hours-of-Service Compliance | — |
| Oct 27, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Sep 8, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Jun 17, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Jun 17, 2025 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Jun 5, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Jun 5, 2025 | 39522GELDMFV | HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position. | Hours-of-Service Compliance | — |