DIAMOND OIL COMPANY

DOT# 554371 MC# 383794 Des Moines, IA Authorized For-Hire / Private Property
(515) 244-4271 jnieto@diamondoilco.com 702 Se Raccoon St, Des Moines IA 50309
43 power units · all owned 32 drivers 1.2M mi/yr · ~28k per unit
HazMat
Satisfactory Provisional: the filed fleet isn't backed up by the roadside record (only 6 of the 43 filed power units were seen at a roadside inspection in 24 months), so the grade can't lean on this motor carrier's own history until the fleet size is confirmed.
FRED Score 73.9 / 100
Prior-only confidence
32 yrs history · 6 roadside inspections

FMCSA Live Status

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Fleet & equipment

Power units
43
Drivers · CDL
32 · 32
Annual miles
1.2M
Type Own Term Trip Total
Trucks 6 0 0 6
Tractors 12 0 0 12
Trailers 10 0 0 10

Registration

Organization
CORPORATION
FMCSA Rating
Satisfactory (05-30-2019) · 7 yr old
Registered
03-23-1994 (32 yrs)
MCS-150 Update
02-28-2024 (Biennial Update)
FRED Score Date
Nov 07, 2026
Officer
JOE NIETO

Cargo

22.2
minimal risk
Liquids/Gases Other: SCRAP METAL Paper Products Farm Supplies Chemicals

Estimated from the commodity types reported to FMCSA, not from loss history or the true cargo mix.

Exposure Unverified

The expected crashes behind this grade assume the filed fleet of 43 power units is real, but the roadside record corroborates little of it — 6 units seen in 24 months, 0.07 inspections per filed unit-year. The grade's relativity to class is unchanged; its confidence tier is cut to reflect the unverified exposure, and until the fleet is confirmed an Excellent grade shows as Strong and a Strong as Satisfactory. Verify the fleet size before relying on the crash expectation.

Too little record to tell how this motor carrier's crash rate compares with similar fleets.

Similar fleets: for-hire fleets of 20–49 trucks with the same kind of operation, years in business and amount of road activity. Compared using its own crash record and roadside inspections.

This motor carrier 0.77×
ExcellentStrongSatisf.MarginalPoorCritical
▲ Similar fleets 1.0×
Expected crashes, next 12 months
0.4 vs 0.5 for similar fleets
Likely 0–1 crashes
This motor carrier
0.4
Similar fleets
0.5
Chance of a fatal crash, next 12 months
~1%
Below similar fleets.
What's driving the grade
Crash history
betterworse
Too little record to tell. 0 crashes on the FMCSA record in 24 months; similar fleets have about 0.5 a year.
Roadside inspections
betterworse
Much worse than peers. Unsafe-driving and hours-of-service violations 2.92× the rate expected for its inspections. Together they move its crash estimate +14%: roadside results weigh far less than crash history.

Worth a closer look

From the FMCSA record. The grade already counts the safety items; insurance filings and links to other motor carriers are not in it.

  • Filed fleet not seen on the road
    Only 6 of the 43 filed power units were seen at a roadside inspection in 24 months (6 inspections in all). The crash expectation behind the grade assumes all 43 are running.
    Ask: how many trucks are actually operating, with the vehicle schedule.
Strengths
  • No reportable crashes in 24 months.

Track record

FMCSA record, Nov 2024 – Jul 2025 · grade scored on Sep 1, 2023 → Sep 30, 2026
Crashes
0
0 fatalities · 0 injuries · 0 tow-aways
Inspections
6
33% clean (no violations)
Vehicle out-of-service
50.0%
2 of 4
National avg 22.3%
Driver out-of-service
0.0%
0 of 6
National avg 6.7%
Violations
9
2 out-of-service
Inspections per quarter With an out-of-service order
Q4 '24: 4 inspections, 1 out of service 4 Q4 '24 Q1 '25: 1 inspections, 1 out of service 1 Q1 '25 Q2 '25: 0 inspections, 0 out of service 0 Q2 '25 Q3 '25: 1 inspections, 0 out of service 1 Q3 '25
vs 694 peer fleets
This motor carrierPeers
Crashes 0.000 0.025
Inspections 0.19 0.62
Violations 0.10 0.38
Critical violations 0.02 0.07

Yearly rates from the last 24 months. Peers: 20–49 power units, minimal-risk cargo.

What they get cited for

9 violations · 24 months
  • Vehicle maintenance No alert
    5 · 2 OOS
    Lights 3 · Brakes 1 · Tires 1
  • Hours of service No alert
    3 · 0 OOS
    Logbook / ELD paperwork 2 · False log 1
  • Unsafe driving No alert
    1 · 0 OOS
    Speeding 1
  • Driver fitness No alert
    0
  • Drugs & alcohol No alert
    0
Out-of-service violations “No alert” = under FMCSA's BASIC intervention threshold

Violations by quarter

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No violation trend data

Crashes

24 months

No reportable crashes on the FMCSA record in the last 24 months.

Insurance filed with FMCSA

FMCSA record through May 14, 2026 · no change recorded by FMCSA since
Today · live FMCSA check
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Last on FMCSA's record (May 14, 2026)
primary $750,000 + excess $4,000,000 · EMCASCO INSURANCE COMPANY
on record since Dec 1, 2023 · FMCSA minimum $750,000 · no gap on FMCSA's record since May 2000
Cargo filing
on file · FEDERATED MUTUAL INSURANCE CO. since Dec 1, 2001
36 months to May 14, 2026
  • One liability insurer throughout
  • No gap in filed liability coverage while liability was required

Operating authority active (FMCSA's L&I record of May 14, 2026, status since Jun 6, 2014)

Who insures fleets like this →

FMCSA filings only, not a policy audit. Not part of the FRED grade. Wrong or out of date?

Where it happens

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Inspections by state
  • Iowa (HQ) 4
  • Nebraska 1
  • South Dakota 1