General warehousing and storage · Iowa

Diamond Oil Company

Name: Diamond Oil Company Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Des Moines, IA · ~88 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · September 26, 2026

A
Excellent Safety Record: 1.7
Avg TCR: 5.8
Industry avg: 0
Fatalities

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The verdict

Diamond Oil Company runs at 29% of its industry's injury rate - far safer than the typical General warehousing and storage workplace, earning a grade A.

Diamond Oil Company: 1.7 TCR = 29% of General warehousing and storage BLS 5.8 · 2y Form 300A (see methodology below)

Diamond Oil Company safety composite

Diamond Oil Company scores strongest on dart rate (safer than 86% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

74/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.66 per 100 workers

Safer than 78% of industry peers
DART rate: B 0 per 100 workers

Safer than 86% of industry peers
Fatalities: D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−3.3

2020→2022

Diamond Oil Company injury rate improved

Diamond Oil Company's TCR fell 3.3 from 3.3 in 2020 to 0.0 in 2022. Peak filing year was 2020 at 3.3 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

2020=3.3 · 2022=0.0

OSHA ITA Form 300A scorecard

Establishment book 493110 · Des Moines, IA AT/BELOW-IND · SMALL

Grade A · TCR 1.7 · 29% of ind

DART 0.0 DART
RANK #26/102
PHOTO 40150 - CAPSTONE FAM…
BOOK 2y book
INJ 2 inj
SIZE ~88 FTE

Nearest TCR peer: 40150 - CAPSTONE FAMILY DOLLAR MEMPHIS AR (0.0 TCR gap)

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This site

1.7
40150 - CAPSTO

1.7
Global Special

1.7
Penske : 5292-

1.7
Radial

1.7

What this shows Diamond Oil Company averages 1.7 TCR (29% of the General warehousing and storage BLS benchmark).

Diamond Oil Company TCR series: 2020=3.3 · 2022=0 · BLS 5.8

Where Diamond Oil Company falls in its industry

9,477 General warehousing and storag establishments

Safer than 78% of graded establishments in this industry, whose median TCR is 3.5.

Grade A

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #26 safest of 102 General warehousing and storag employers in Iowa.

Diamond Oil Company (88 employees, TCR 1.7) among 29 same-industry peers, split at the industry median of 92 employees and a TCR of 3.5

Diamond Oil Company has fewer employees than the General warehousing and storage median and a lower injury rate than the industry's median TCR of 3.5. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses	Fatalities
2022	0.0	0.0	0	0	0
2020	3.3	1.7	2	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

493110 · IA · Des Moines

9,477 General warehousing and storage employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 525 employers in Des Moines, IA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	40150 - CAPSTONE FAMILY DOLLAR MEMPHIS AR	WEST MEMPHIS, AR	1.7 TCR
NAICS-TCR	Global Specialty Fulfillment : UCA7	SAN JOSE, CA	1.7 TCR
NAICS-TCR	Penske : 5292-00 Whirlpool-DCM/Cedar Rapids, IA	CEDAR RAPIDS, IA	1.7 TCR
NAICS-TCR	Radial	ROMEOVILLE, IL	1.7 TCR
STATE-SIZE	SPEE DEE DELIVERY SERVICE, INC - DES MOINES	DES MOINES	88 FTE
STATE-SIZE	PSSI / TYSON FOODS INC. - COLUMBUS JUNCTION	COLUMBUS JUNCTION	88 FTE
STATE-SIZE	Letica-Iowa	MUSACATINE	88 FTE
STATE-SIZE	Art's Way Manufacturing Co., Inc.	ARMSTRONG	88 FTE
CITY-NEAR	Corporate Center	Des Moines	6,292 FTE
CITY-NEAR	Mercy Medical Center - Des Moines	Des Moines	4,884 FTE
CITY-NEAR	MercyOne Des Moines	Des Moines	3,547 FTE
CITY-NEAR	Des Moines Methodist Hospital	Des Moines	3,495 FTE
NAT-TCR	Industrial Performance Group of NE	Beaver City, NE	1.7 TCR
NAT-TCR	Thompson Industrial Services, LLC, Division 37	Hopewell, VA	1.7 TCR
NAT-TCR	Champion Laboratories - Michigan	Shelby Township, MI	1.7 TCR
NAT-TCR	Spring City Site	Spring City Tn, TN	1.7 TCR
NAT-SIZE	Comtech	Fayetteville, NC	88 FTE
NAT-SIZE	Glenn Rieder West Allis	West Allis, WI	88 FTE
NAT-SIZE	Thinkery	Austin, TX	88 FTE
NAT-SIZE	Winchester Coated Products Division	Winchester, VA	88 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2022, 2020. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.