O'brien Rock Company Inc is a trucking company based in SAINT PAUL, Kansas, registered with the Federal Motor Carrier Safety Administration (FMCSA) under USDOT Number 527966. According to the latest FMCSA records, the company is currently listed as an Active carrier and operates as an Interstate motor carrier. The company profile provides publicly available FMCSA registration details, including carrier status, operating classification, and other information reported through FMCSA records.
Company Details
- Entity Type
- Carrier
- Fleet Size
- 72 units
- Drivers
- 58 total
Contact Information
- Phone
- (620) 449-2257
- [email protected]
- Website
- https://obrienreadymix.com
Operation Summary
- Operating Status
- Active
- Carrier Operation
- Interstate
- Operation Classification
- Private Property
- Cargo Carried
- Dry Bulk, READYMIX CONCRETE
- Annual Mileage
- 1,089,317 miles (2025) as of Mar 16, 2026
Physical Address
Mailing Address
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Fleet Details
| Vehicle Types | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Truck Tractors | 14 | 0 | 0 |
| Trucks | 58 | 0 | 0 |
| Trailers | 18 | 0 | 0 |
Safety Violations
| Total | Severe | Out of Service | Measure | Percentile | |
|---|---|---|---|---|---|
Accident Reports
Results for 24 months prior to Oct 21, 2026
| Last 6 Months | 6-12 Months ago | 12-24 Months ago | Total | |
|---|---|---|---|---|
Inspections
Results for 24 months prior to Oct 21, 2026
| Driver | Vehicle | Hazmat | IEP | |
|---|---|---|---|---|
Safety Rating
- Rating Date
- May 26, 2006
- Rating
- Satisfactory
- Review Date
- May 24, 2006
- Type
- Compliance Review
Company Details
- Entity Type
- Carrier
- Fleet Size
- 72 units
- Drivers
- 58 total
Physical Address
Contact Information
- Phone
- (620) 449-2257
- [email protected]
- Website
- https://obrienreadymix.com
Mailing Address
Is this your company?
Hey Bubba! is an AI back-office automation platform for fleets. Automate the work behind your fleet, from load booking to paperwork and compliance.
Operation Summary
- Operating Status
- Carrier Operation
- Operation Classification
- Cargo Carried
- Annual Mileage
- Active
The entity's USDOT number is active. - Interstate
- Private Property
- Dry Bulk, READYMIX CONCRETE
- 1,089,317 miles (2025) as of Mar 16, 2026
Fleet Details
| Vehicle Types | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Truck Tractors | 14 | 0 | 0 |
| Trucks | 58 | 0 | 0 |
| Trailers | 18 | 0 | 0 |
| Total | Severe | Out of Service | Measure | Percentile | |
|---|---|---|---|---|---|
| Last 6 Months | 6-12 Months ago | 12-24 Months ago | Total | |
|---|---|---|---|---|
| Driver | Vehicle | Hazmat | IEP | |
|---|---|---|---|---|
Safety Rating
This is a measure of the carrier's compliance with the Federal Motor Carrier Safety Regulations (FMCSR). A Compliance Review is a statistical sampling or audit of required records to determine a motor carrier's compliance with the FMCSR. An in-depth review of the motor carrier's records is made to check different categories of drivers, vehicles and trips. This review may be limited to specific problems and may include a detailed investigation of a problem area. The compliance status determination is based on FMCSR violations discovered during the review. The below safety rating information is based on SAFER Web data. Hey Bubba! updates these statistics as they are released by the FMCSA.
- Rating Date
- Rating
- Review Date
- Type
- May 26, 2006
- Satisfactory
- May 24, 2006
- Compliance Review
Frequently asked questions
O'brien Rock Company Inc operates under USDOT number 527966, as registered with the FMCSA. The USDOT number identifies the carrier for safety monitoring.
Yes. O'brien Rock Company Inc appears as an active carrier in the FMCSA registration data Hey Bubba! compiles, under USDOT 527966. Registration status can change, so confirm it on the FMCSA SAFER listing before you book a load.
O'brien Rock Company Inc lists its physical address as 712 CENTRAL ST, Saint Paul, Kansas 66771.
The phone number on file for O'brien Rock Company Inc is (620) 449-2257.
O'brien Rock Company Inc is registered as a carrier, running interstate operations. It reports hauling Dry Bulk and READYMIX CONCRETE.
O'brien Rock Company Inc reports 72 power units and 58 drivers to the FMCSA. It reported 1,089,317 miles for 2025. Figures come from the carrier's own MCS-150 filing.
O'brien Rock Company Inc has a satisfactory safety rating from the FMCSA, dated May 26, 2006.
Hey Bubba! does not publish customer reviews. This page shows the FMCSA safety, inspection, crash and violation records on file for O'brien Rock Company Inc, which are public records and not opinions.
Confirm that USDOT 527966 are active, check that the carrier's insurance is current, and review its safety rating, inspections and crashes on this page. Then match the name, address and phone number against the SAFER listing, and call the carrier directly to confirm the details.
Hey Bubba! compiles carrier profiles from public FMCSA data, including SAFER Web and the Safety Measurement System. It may lag the live FMCSA record, so verify anything important with the FMCSA or the carrier.
More Trucking Resources
The carrier profiles listed on this page are compiled by Hey Bubba! based on publicly available data from the Federal Motor Carrier Safety Administration (FMCSA), including sources such as SAFER Web and the FMCSA's Safety Measurement System (SMS). While we strive to provide accurate and up-to-date information, Hey Bubba! does not guarantee the completeness, accuracy, or timeliness of the data presented. Users are advised to verify any critical information directly with the FMCSA or the carrier in question. Hey Bubba! assumes no legal liability or responsibility for any errors, omissions, or outcomes resulting from the use of this information. Last updated October 21, 2026.