GRABOW WELL DRILLING INC
AUTHORIZEDUSDOT
2978651
MC Number
N/A
Fleet Size
9
Total Drivers
2
Last updated: March 14, 2026
Safety overview
GRABOW WELL DRILLING INC is a small intrastate only (hazmat) motor carrier based in HANFORD, California, operating 9 power units with 2 drivers. 1 of their 5 BASIC scores sits above the 75th percentile intervention threshold. The rest fall within acceptable ranges. No crashes on file. FMCSA records show 3 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
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 California is 8.9% and the average vehicle OOS rate is 22.3% across 311,386 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Hazmat)
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
3
Total
0%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is GRABOW WELL DRILLING INC authorized to operate?
Yes. GRABOW WELL DRILLING INC (USDOT #2978651) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (hazmat) carrier.
What is GRABOW WELL DRILLING INC's safety record?
GRABOW WELL DRILLING INC has 1 BASIC score above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.
How many trucks does GRABOW WELL DRILLING INC operate?
GRABOW WELL DRILLING INC operates 9 power units with 2 drivers on file. That makes them a small carrier.
Does GRABOW WELL DRILLING INC transport hazardous materials?
No. GRABOW WELL DRILLING INC does not have a hazardous materials flag in the FMCSA database.
Where is GRABOW WELL DRILLING INC located?
GRABOW WELL DRILLING INC is based in HANFORD, California at 12522 9TH AVE, 93230. Phone: (559) 584-9355.
What are GRABOW WELL DRILLING INC's out-of-service rates?
Their vehicle out-of-service rate is 66.7% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.