What is Griner Drilling Service INC's safety grade?

Griner Drilling Service INC has a CarrierRecord safety grade of C. This grade is based on FMCSA inspection results, out-of-service rates, and crash history. Grades range from A (excellent) to F (poor). NR means not enough data to rate.

How many FMCSA inspections does Griner Drilling Service INC have?

Griner Drilling Service INC has 15 inspections on record with a 26.7% vehicle out-of-service rate and a 13.3% driver out-of-service rate. The national averages are 23.2% and 6.4% respectively. These inspections revealed 13 violations.

Has Griner Drilling Service INC been involved in any crashes?

Griner Drilling Service INC has no crashes on record in FMCSA data.

Griner Drilling Service INC Safety Record

DOT# 191671 · Columbia, MS 39429-8255 · 6017366347

Average safety record — scored 40/100. This carrier's inspection results are typical for the industry.

Last inspected 11/04/2025

Grade based on FMCSA inspection, crash, and violation data. See methodology →

Safety Score Breakdown · 40/100 points

Vehicle OOS Rate 20/30 pts

Driver OOS Rate 20/20 pts

Crash Rate 0/30 pts

Fatal Crash Penalty 0/20 pts

Lower scores are better. How is this calculated?

According to FMCSA records, Griner Drilling Service INC (DOT# 191671) in Columbia, Mississippi has 15 inspections on record with 13 violations and a 26.7% vehicle out-of-service rate. Safety grade: C.

15 Inspections

26.7% Vehicle OOS Rate

0 Crashes

91 Power Units

Out-of-Service Rates vs. National Average

An out-of-service (OOS) violation means a vehicle or driver was found unsafe to operate during a roadside inspection and was prohibited from continuing until the issue was corrected.

Vehicle OOS Rate 26.7%

Carrier: 26.7% (4 of 15) National: 23.2%

Driver OOS Rate 13.3%

Carrier: 13.3% (2 of 15) National: 6.4%

32% OOS rate better than 32% of carriers in Mississippi

35% crash rate better than 35% of carriers in Mississippi

Violation Categories · 13 total violations

FMCSA groups violations into Behavioral Analysis and Safety Improvement Categories (BASICs). Each violation found during a roadside inspection is classified into a category that reflects the type of safety risk.

13 total violations across 15 inspections

6 violations resulted in out-of-service orders (46%)

Vehicle Maintenance

Unsafe Driving

Driver Fitness

Inspection History · 15 records

FMCSA inspections range from Level 1 (full vehicle and driver examination) to Level 6 (enhanced motorcoach inspection). Level 1 is the most thorough; Levels 2 and 3 are walk-around and driver-only checks.

Inspected across 3 states: FL, LA, MS

Level 1: 5 (33%) Level 2: 7 (47%) Level 3: 3 (20%)

2 of 5 recent inspections had vehicle out-of-service violations

Date	State	Level	Veh OOS	Drv OOS
11/04/2025	LA	2	1	0
06/20/2025	LA	2	2	0
06/17/2025	MS	2	0	0
05/12/2025	MS	1	0	0
03/10/2025	MS	3	0	0
09/19/2024	LA	3	0	0
05/28/2024	LA	2	0	0
04/02/2024	FL	1	0	1
03/07/2024	FL	1	0	0
02/01/2024	FL	1	1	1
09/07/2023	MS	2	0	0
07/21/2023	MS	1	0	0
05/31/2023	MS	2	0	0
04/19/2023	LA	3	0	0
04/13/2023	MS	2	0	0

Fleet Profile

Power units include trucks, tractors, and other commercial motor vehicles registered to the carrier. Driver count reflects the total number of drivers reported on the carrier's MCS-150 filing.

Power Units 91

Drivers 42

Fleet Size Mid-Size Fleet

Operation Type Interstate

Hazmat Yes

Operating Since 06/01/1974

MCS-150 Filed 20250110 1

Annual Mileage (MCS-150) 1,500,000

Address 1014 Highway 98 Bypass, Columbia, MS 39429-8255