Gas well machinery and equipment manufacturing · Oklahoma

HES Duncan, OK (Manufacturing)

Name: HES Duncan, OK (Manufacturing) Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Duncan, OK · ~645 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.8
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

HES Duncan, OK (Manufacturing) runs at 25% of its industry's injury rate - far safer than the typical Gas well machinery and equipment manufacturing workplace, earning a grade A.

HES Duncan, OK (Manufacturing): 0.8 TCR = 25% of Gas well machinery and equipment manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

HES Duncan, OK (Manufacturing) safety composite

HES Duncan, OK (Manufacturing) scores strongest on total case rate (tcr) (safer than 65% of same-industry peers) and weakest on dart rate (safer than 26%), 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).

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 0.81 per 100 workers

Safer than 65% of industry peers
DART rate: F 1.23 per 100 workers

Safer than 26% 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%).

Rising injury rate

HES Duncan, OK (Manufacturing): 0.6 → 1.2 TCR

Peak year 2020 @ 1.6 TCR · DART/TCR 1.52× in 2021

HES Duncan, OK (Manufacturing)'s TCR rose 0.7 from 0.6 in 2016 to 1.2 in 2021. Peak filing year was 2020 at 1.6 TCR. In 2021, DART was 1.52× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 333132 · Duncan, OK AT/BELOW-IND · MID

Grade A · TCR 0.8 · 25% of ind

DART 1.2 DART
RANK #13/40
PHOTO Rubber Plant
BOOK 6y book
INJ 30 inj
SIZE ~645 FTE

Nearest TCR peer: Rubber Plant (0.0 TCR gap)

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0.8
Rubber Plant

0.8
Innovex Downho

0.8
National Oilwe

0.8
Championx / Ha

0.8

What this shows HES Duncan, OK (Manufacturing) averages 0.8 TCR (25% of the Gas well machinery and equipment manufacturing BLS benchmark).

HES Duncan, OK (Manufacturing) TCR series: 2016=0.6 · 2017=0.3 · 2018=0.8 · 2019=0.5 · 2020=1.6 · 2021=1.2 · BLS 3.3

Where HES Duncan, OK (Manufacturing) falls in its industry

316 Gas well machinery and equipme establishments

Safer than 65% of graded establishments in this industry, whose median TCR is 1.3.

Grade A

More dangerous than peersSafer than peers

Narrower to Oklahoma alone (the establishments it most directly competes with for workers and contracts): ranked #13 safest of 40 Gas well machinery and equipme employers in Oklahoma.

HES Duncan, OK (Manufacturing) (645 employees, TCR 0.8) among 29 same-industry peers, split at the industry median of 92 employees and a TCR of 1.3

HES Duncan, OK (Manufacturing) has more employees than the Gas well machinery and equipment manufac median and a lower injury rate than the industry's median TCR of 1.3. 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
2021	1.2	1.2	7
2020	1.6	1.2	8
2019	0.5	0.5	4
2018	0.8	0.5	6
2017	0.3	0.0	2
2016	0.6	0.6	3

OSHA ITA peer cross-reference

Establishment peer ledger

333132 · OK · Duncan

316 Gas well machinery and equipment manufacturing employers nationwide with a credible TCR · 5,320 rated employers in Oklahoma with headcount on file · 41 employers in Duncan, OK · 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	Rubber Plant	HOUSTON, TX	0.8 TCR
NAICS-TCR	Innovex Downhole Solutions World Houston	HOUSTON, TX	0.8 TCR
NAICS-TCR	National Oilwell Varco	CONROE, TX	0.8 TCR
NAICS-TCR	Championx / Harbison-Fischer	CROWLEY, TX	0.8 TCR
STATE-SIZE	Tulsa General Office	TULSA	645 FTE
STATE-SIZE	D & M Carriers LLC	OKLAHOMA CITY	646 FTE
STATE-SIZE	Lopez Foods, Inc.	OKLAHOMA CITY	647 FTE
STATE-SIZE	Manhattan Construction Company	TULSA	648 FTE
CITY-NEAR	DUNCAN REGIONAL HOSPITAL	Duncan	982 FTE
CITY-NEAR	Duncan Manufacturing	Duncan	766 FTE
CITY-NEAR	4186-DC204	Duncan	507 FTE
CITY-NEAR	DC204 DC204 DUNCAN OK	Duncan	499 FTE
NAT-TCR	Lubrizol La Porte	La Porte, TX	0.8 TCR
NAT-TCR	Renown Health ORG 100 +110 +150	Reno, NV	0.8 TCR
NAT-TCR	Coldspring	Coldspring, TX	0.8 TCR
NAT-TCR	4261 ConAgra Knoxville	Vonore, TN	0.8 TCR
NAT-SIZE	6768-67680052-UTDC	Salt Lake City, UT	645 FTE
NAT-SIZE	Clinic-Austin Roundrock Region	Round Rock, TX	645 FTE
NAT-SIZE	Maryland	Annapolis Junction, MD	645 FTE
NAT-SIZE	DN Tanks LLC	Wakefield, MA	645 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: 2021, 2020, 2019, 2018, 2017, 2016. 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.