DIAMOND OIL COMPANY

Authority active

USDOT 554371 · MC383794 · DES MOINES, IA

DIAMOND OIL COMPANY (USDOT 554371, MC MC383794) is a motor carrier based in DES MOINES, IA. This page provides comprehensive safety information, inspection history, authority status, and compliance data for DIAMOND OIL COMPANY.

Quick Facts

Legal Name:: DIAMOND OIL COMPANY
USDOT Number:: 554371
MC Number:: MC383794
Authority Status:: Active
Power Units:: 43
Location:: DES MOINES, IA

Insurance filing

Unknown

USDOT registration

USDOT active

Fleet size

43 power units

32 drivers

Safety record

Rolling 24 months

inspections

with violations

violations

33.3%

vehicle out of service

driver out of service

FMCSA safety scores through Jun 2026

Unsafe driving
1 of 1 with violations
Hours of service
1 of 8 with violations
Vehicle maintenance
35.0%

worse than 35% of 51,399 similar carriers
Driver fitness
No violations
Controlled substances
No violations

Recent inspections

Jul 18, 2025IA000P123GG6Violations recorded1 violation

Jan 16, 2025SD5540002786Vehicle placed out of serviceOut of service

Dec 23, 2024IA000P130R6HNo violations foundClear

Dec 17, 2024IA000P12Q7PQVehicle placed out of serviceOut of service

Operating profile

DOT Company Census · updated Aug 14, 2026

Operation

Classification

PRIVATE PROPERTY;AUTHORIZED FOR HIRE

Registered

Mar 23, 1994

MCS-150 mileage

1,200,000 mi

Mileage year

2023

Reported cargo

No cargo classifications reported.