SOUTHERN PETROLEUM LABORATORIES INC
AUTHORIZEDDBA: SPL
USDOT
240804
MC Number
N/A
Fleet Size
37
Total Drivers
39
Last updated: March 16, 2026
Broker verification report
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Safety overview
SOUTHERN PETROLEUM LABORATORIES INC is a mid-size interstate motor carrier based in CASPER, Wyoming, operating 37 power units with 39 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. They have 1 crash on file. FMCSA records show 4 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Wyoming is 10.8% and the average vehicle OOS rate is 38.0% across 6,348 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
4
Total
50%
Driver %
Insurance on file
No insurance records on file with FMCSA.
Crash history
1
Total Crashes
Similar carriers in Wyoming
Other carriers in the same state with a similar fleet size.
LEGEND SERVICES INC
GRAND TETON FORESTRY OPERATIONS INCORPORATED
EXERO WELL INTEGRITY LLC
J & R TRUCKING INC
MAGNUM CEMENTING SERVICES LLC
Frequently asked questions
Is SOUTHERN PETROLEUM LABORATORIES INC authorized to operate?
Yes. SOUTHERN PETROLEUM LABORATORIES INC (USDOT #240804) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is SOUTHERN PETROLEUM LABORATORIES INC's safety record?
SOUTHERN PETROLEUM LABORATORIES INC has 4 inspections on file and 1 crash on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles directly with FMCSA before relying on them.
How many trucks does SOUTHERN PETROLEUM LABORATORIES INC operate?
SOUTHERN PETROLEUM LABORATORIES INC operates 37 power units with 39 drivers on file. That puts them in the mid-size range.
Does SOUTHERN PETROLEUM LABORATORIES INC transport hazardous materials?
No. SOUTHERN PETROLEUM LABORATORIES INC does not have a hazardous materials flag in the FMCSA database.
Where is SOUTHERN PETROLEUM LABORATORIES INC located?
SOUTHERN PETROLEUM LABORATORIES INC is based in CASPER, Wyoming at 1030 N POPLAR ST STE A, 82601. Phone: (337) 258-6511.
What are SOUTHERN PETROLEUM LABORATORIES INC's out-of-service rates?
SOUTHERN PETROLEUM LABORATORIES INC's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 75.0% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.