Authorized for HireWilliams Tank Lines Llc is a trucking company based in STOCKTON, California, registered with the Federal Motor Carrier Safety Administration (FMCSA) under USDOT Number 229047. 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
- MC#
- 197435
- Entity Type
- Carrier, Cargo Tank, Broker
- Fleet Size
- 336 units
- Drivers
- 347 total
Contact Information
- Phone
- (209) 944-5613
- [email protected]
- Website
- https://williamstankline.com
Operation Summary
- Operating Status
- Active
- Carrier Operation
- Interstate
- Operation Classification
- Authorized for Hire
- Cargo Carried
- Liquids/Gases, PETROLEUM PRODUCTS
- Annual Mileage
- 13,000,000 miles (2024) as of Apr 1, 2025
Insurance Coverage
- Insurance Type
- BI&PD (Primary)
- Company Name
- National Union Fire Ins. Co. Of Pitsbgh. Pa
- Policy Limit
- $750,000
- Policy Number
- 6401490
- Effective Date
- Apr 1, 2026
- Insurance Type
- BI&PD (Primary)
- Company Name
- National Interstate Insurance Company
- Policy Limit
- $1,000,000
- Policy Number
- WTL 8199910-07
- Effective Date
- Apr 1, 2023
- Insurance Type
- Trust Fund
- Company Name
- Pacific Financial Association, Inc.
- Policy Limit
- $0
- Policy Number
- NONE
- Effective Date
- Oct 24, 2013
Physical Address
Mailing Address
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Fleet Details
| Vehicle Types | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Truck Tractors | 46 | 0 | 0 |
| Trucks | 115 | 0 | 0 |
Safety Violations
| Total | Severe | Out of Service | Measure | Percentile | |
|---|---|---|---|---|---|
| Vehicle Maintenance | 356 | 17 | 0 | 1.6 | 0.00% |
| Unsafe Driving | 5 | 1 | 0 | 0.09 | 0.00% |
| HOS Compliance | 10 | 3 | 0 | 0.03 | 0.00% |
| Driver Fitness | 2 | 1 | 0 | 0 | 0.00% |
| Controlled Substances | 0 | 0 | 0 | 0 | 0.00% |
Accident Reports
Results for 24 months prior to Oct 4, 2026
| Last 6 Months | 6-12 Months ago | 12-24 Months ago | Total | |
|---|---|---|---|---|
| Fatalities | 0 | 0 | 0 | 0 |
| Injuries | 2 | 0 | 6 | 8 |
| Tow-away | 2 | 1 | 5 | 8 |
| Crash Reports | 4 | 1 | 11 | 16 |
Inspections
Results for 24 months prior to Oct 4, 2026
| Driver | Vehicle | Hazmat | IEP | |
|---|---|---|---|---|
| Inspections | 662 | 719 | 0 | 0 |
| OOS Inspections | 1 | 57 | 0 | 0 |
| OOS Percentage | 0.15% | 7.93% | 0.00% | 0.00% |
| National Average as of Sep 5, 2026 | 6.67% | 22.26% | 4.44% | N/A |
Insurance
| Insurance Type | Insurance Required | Insurance on File |
|---|---|---|
| BI&PD (Primary) | $0 | $750,000 |
| BI&PD (Primary) 2 | $0 | $1,000,000 |
| Trust Fund | $0 | $0 |
Safety Rating
- Rating Date
- May 19, 2014
- Rating
- Satisfactory
- Review Date
- May 7, 2014
- Type
- Compliance Review
Company Details
- MC#
- 197435
- Entity Type
- Carrier, Cargo Tank, Broker
- Fleet Size
- 336 units
- Drivers
- 347 total
Physical Address
Contact Information
- Phone
- (209) 944-5613
- [email protected]
- Website
- https://williamstankline.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
- Authorized for Hire
- Liquids/Gases, PETROLEUM PRODUCTS
- 13,000,000 miles (2024) as of Apr 1, 2025
Insurance Coverage
- Insurance Type
- Company Name
- Policy Limit
- Policy Number
- Effective Date
- BI&PD (Primary)
- National Union Fire Ins. Co. Of Pitsbgh. Pa
- $750,000
- 6401490
- Apr 1, 2026
- Insurance Type
- Company Name
- Policy Limit
- Policy Number
- Effective Date
- BI&PD (Primary)
- National Interstate Insurance Company
- $1,000,000
- WTL 8199910-07
- Apr 1, 2023
- Insurance Type
- Company Name
- Policy Limit
- Policy Number
- Effective Date
- Trust Fund
- Pacific Financial Association, Inc.
- $0
- NONE
- Oct 24, 2013
Fleet Details
| Vehicle Types | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Truck Tractors | 46 | 0 | 0 |
| Trucks | 115 | 0 | 0 |
Safety Violations
| Total | Severe | Out of Service | Measure | Percentile | |
|---|---|---|---|---|---|
| Vehicle Maintenance | 356 | 17 | 0 | 1.6 | 0.00% |
| Unsafe Driving | 5 | 1 | 0 | 0.09 | 0.00% |
| Hours of Service Compliance | 10 | 3 | 0 | 0.03 | 0.00% |
| Driver Fitness | 2 | 1 | 0 | 0 | 0.00% |
| Controlled Substances | 0 | 0 | 0 | 0 | 0.00% |
Accident Reports
Results for 24 months prior to Oct 4, 2026
| Last 6 Months | 6-12 Months ago | 12-24 Months ago | Total | |
|---|---|---|---|---|
| Fatalities | 0 | 0 | 0 | 0 |
| Injuries | 2 | 0 | 6 | 8 |
| Tow-away | 2 | 1 | 5 | 8 |
| Crash Reports | 4 | 1 | 11 | 16 |
Inspections
Results for 24 months prior to Oct 4, 2026
| Driver | Vehicle | Hazmat | IEP | |
|---|---|---|---|---|
| Inspections | 662 | 719 | 0 | 0 |
| OOS Inspections | 1 | 57 | 0 | 0 |
| OOS Percentage | 0.15% | 7.93% | 0.00% | 0.00% |
| National Average as of Sep 5, 2026 | 6.67% | 22.26% | 4.44% | N/A |
InsuranceThe below insurance information is based on FMCSA Licensing and Insurance Public data. Hey Bubba! updates these statistics as they are released by the FMCSA.
| Insurance Type | Insurance Required | Insurance on File |
|---|---|---|
| BI&PD (Primary) | $0 | $750,000 |
| BI&PD (Primary) 2 | $0 | $1,000,000 |
| Trust Fund | $0 | $0 |
Safety RatingThis 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 19, 2014
- Satisfactory
- May 7, 2014
- Compliance Review
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 4, 2026.