HaulerCheck · https://haulercheck.com/carrier/2431488-diamond-oil-services-llc/ · Checked 2026-10-20 16:09 UTC · Census and inspections Oct 20, 2026 · Authority and insurance: FMCSA Motus · Oct 20, 2026
Diamond Oil Services LLC
No risk signals found
How risk signals workNothing in the FMCSA record matched our risk signals. That is not a guarantee, and it does not confirm who you are talking to; follow the checks below.
No cargo cover filed with FMCSA
Green means the FMCSA record shows it. It does not confirm who you are talking to, or that a policy covers your specific load.
What to verify next
- Confirm authority and insurance on the official Motus record. Safety record: SAFER.
- Call back on the number on file, (330) 501-1127, not a number from an email or load board.
- Check that the MC number you were given is MC838961.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC838961 | — | Great Divide Insurance Company Policy BAP204105713 · BMC-91X | $750,000 | Aug 11, 2026 | Active |
Insurance that ended since 2024 · 1 policy
| Ended | Type | Insurer | Effective | How it ended |
|---|---|---|---|---|
| Aug 11, 2026 | Liability (BI&PD) MC838961 | Great Divide Insurance Company Policy BAP2041057-10 | Aug 10, 2023 | Replaced |
"Replaced" means a new filing took over the day the old one ended. "Cancelled" means the insurer or the company ended the policy; if no replacement was filed in time, the company was uninsured with FMCSA in between.
Source: FMCSA Motus · Oct 20, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Confirm current filings: Motus record and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 20, 2024 – Oct 20, 2026
2 of 9 · Ohio avg 21.7%
1 of 12 · Ohio avg 5.2%
By quarter inspections and vehicle out-of-service rate
Bar height: inspections in the quarter. Percentage: vehicles put out of service, of vehicle inspections. The first and last quarters are partial.
Where it was inspected 2 states and provinces, 24 months
- OH 8 66.7%
- PA 4 33.3%
Vehicles seen at inspections different VINs, 24 months
Power units: 7
4 tractors · 3 straight trucks
Kenworth 4Mack 4Western Star 1
12 power units declared on the MCS-150. Inspections see only part of a fleet, so fewer here is normal; many more can mean the registration is out of date.
Trailers: 3
3 semi-trailers
Includes trailers the company pulled but does not own, such as shipper or leasing trailers.
Shippers named on inspection reports 24 months
Hilcorp 1Hillcorp 1
As written by roadside inspectors, who note the shipper on the bill of lading. Only names that appear on at least three different carriers' reports are shown, so private individuals are never listed. A shipper on a report is not a reference.
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Sep 24, 2026 | OH | 3 | 0 | No |
| Sep 18, 2026 | OH | 2 | 1 | No |
| Sep 15, 2026 | PA | 2 | 8 | No |
| Aug 7, 2026 | OH | 2 | 6 | Yes |
| Jul 31, 2026 | OH | 2 | 3 | Yes |
| Dec 29, 2025 | OH | 3 | 1 | No |
| Oct 7, 2025 | PA | 2 | 0 | No |
| May 29, 2025 | PA | 3 | 0 | No |
| May 20, 2025 | OH | 2 | 2 | No |
| Mar 17, 2025 | OH | 2 | 8 | No |
How these rates are calculated
Period: Oct 20, 2024 – Oct 20, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Ohio average covers 110,501 vehicle and 182,316 driver inspections of all Ohio-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile · SAFER snapshot
Violations in FMCSA's SMS last 24 months
24 violations counted in FMCSA's Safety Measurement System (SMS), 5 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 40 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 20, 2024 – Oct 20, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Ohio share |
|---|---|---|---|---|
| Vehicle Maintenance | 22 | 4 | 91.7% | 63.0% |
| Controlled Substances/Alcohol | 1 | 1 | 4.2% | 0.3% |
| Unsafe Driving | 1 | 0 | 4.2% | 18.5% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Lighting - Tail lamp - Any inoperative Lighting · Vehicle Maintenance · code 3939ALRLI | 2 | 0 |
| Conspicuity Systems - Truck tractor lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1 1997 Reflective Sheeting · Vehicle Maintenance · code 39311A1CSLRR | 2 | 0 |
| Driver Prohibited from Performing Safety Sensitive Functions per 382.501(a) in the Drug and Alcohol Clearinghouse Alcohol Jumping OOS · Controlled Substances/Alcohol · code 39215 | 1 | 1 |
| Brake - Hole in Spring Brake Housing Brakes All Others · Vehicle Maintenance · code 3963A1CH | 1 | 1 |
| Frame cracked / loose / sagging / broken Cab Body Frame · Vehicle Maintenance · code 393201A | 1 | 1 |
| Lighting - Turn signal - Any inoperative on the rearmost vehicle. Lighting · Vehicle Maintenance · code 3939ALTSI | 1 | 1 |
| Hubs - oil and/or Grease Leaking from hub - outer wheel Wheels Studs Clamps Etc. · Vehicle Maintenance · code 3965BHLOW | 1 | 1 |
| Driver- Inattentive or Distracted Driving Dangerous Driving · Unsafe Driving · code 3922INAT | 1 | 0 |
| Inoperative/defective brakes Brakes All Others · Vehicle Maintenance · code 39348A | 1 | 0 |
| Truck Tractor manufactured on or after March 1 1997 not equipped with an antilock brake system Brakes All Others · Vehicle Maintenance · code 39355C1 | 1 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 20, 2026. "Share" is this company's mix of violations; the Ohio column is the mix across all Ohio-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 20, 2024 – Oct 20, 2026
Crash details
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Sep 15, 2026 | Lackawannock Township, PA | 0 | 1 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 20, 2026
| USDOT number | 2431488 |
|---|---|
| MC / docket | MC838961 |
| Legal name | DIAMOND OIL SERVICES LLC |
| Operation | Interstate |
| Business type | — |
| Power units | 12 |
| Drivers | 20 |
| Annual mileage | 495,434 (2025) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Aug 21, 2013 · 13 years ago |
| Last MCS-150 update | Sep 28, 2026 |
| Email domain on file | @live.com (free email service) |
Equipment as declared on the MCS-150
| Owned | Term-leased | |
|---|---|---|
| Tractors | 6 | 0 |
| Straight trucks | 6 | 0 |
| Trailers | 8 | 0 |
Term-leased equipment usually belongs to owner-operators driving under this company's authority.
Cargo carried
Oilfield EquipmentWater WellOtherWater
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about Diamond Oil Services LLC
What does Diamond Oil Services LLC's operating authority allow?
MC838961: Motor carrier (may haul regulated property for hire).
Which information about Diamond Oil Services LLC is old or missing?
FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking Diamond Oil Services LLC?
Confirm the authority and insurance on the Motus record for USDOT 2431488. Call the company back on the phone number on file, (330) 501-1127, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC838961, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Vienna, OH →
Company details from the FMCSA Company Census File (Oct 20, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-20 16:09 UTC.