Natural gas processing plant construction · Oklahoma

ISTI Plant Services

Name: ISTI Plant Services Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Tulsa, OK · ~947 workers · 7 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

ISTI Plant Services runs at 10% of its industry's injury rate - far safer than the typical Natural gas processing plant construction workplace, earning a grade A.

ISTI Plant Services: 0.3 TCR = 10% of Natural gas processing plant construction BLS 2.8 · 7y Form 300A (see methodology below)

ISTI Plant Services safety composite

ISTI Plant Services scores strongest on total case rate (tcr) (safer than 80% of same-industry peers) and weakest on dart rate (safer than 38%), 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).

58/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 0.29 per 100 workers

Safer than 80% of industry peers
DART rate: D 0.1 per 100 workers

Safer than 38% of industry peers
Fatalities: D 0

Safer than 52% 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%).

ISTI Plant Services held a steady TCR band

ISTI Plant Services's TCR held near 0.1 from 0.3 in 2016 to 0.2 in 2024. Peak filing year was 2021 at 0.4 TCR. In 2024, DART was 0.34× this establishment's average TCR (severity share of cases).

2016=0.3 · 2017=0.2 · 2018=0.3 · 2019=0.3 · 2020=0.3 · 2021=0.4 · 2024=0.2

OSHA ITA Form 300A scorecard

Establishment book 237120 · Tulsa, OK AT/BELOW-IND · MID

Grade A · TCR 0.3 · 10% of ind

DART 0.1 DART
RANK #3/35
PHOTO Conway Phillips Hold…
BOOK 7y book
INJ 24 inj
SIZE ~947 FTE

Nearest TCR peer: Conway Phillips Holding, LLC (0.0 TCR gap)

Read with this employer → · Industry book → · Oklahoma employers → · Look up another →

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0.3
Conway Phillip

0.3
Jones Contract

0.3
Michels Pipeli

0.3
Chevron El Seg

0.3

What this shows ISTI Plant Services averages 0.3 TCR (10% of the Natural gas processing plant construction BLS benchmark).

ISTI Plant Services TCR series: 2016=0.3 · 2017=0.2 · 2018=0.3 · 2019=0.3 · 2020=0.3 · 2021=0.4 · 2024=0.2 · BLS 2.8

Where ISTI Plant Services falls in its industry

809 Natural gas processing plant c establishments

Safer than 80% of graded establishments in this industry, whose median TCR is 0.7.

Grade A

More dangerous than peersSafer than peers

Narrower to Oklahoma alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 35 Natural gas processing plant c employers in Oklahoma.

ISTI Plant Services (947 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 137 employees and a TCR of 0.7

ISTI Plant Services has more employees than the Natural gas processing plant constructio median and a lower injury rate than the industry's median TCR of 0.7. 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
2024	0.2	0.1	2
2021	0.4	0.0	3
2020	0.3	0.1	2
2019	0.3	0.2	7
2018	0.3	0.2	6
2017	0.2	0.1	2
2016	0.3	0.1	2

OSHA ITA peer cross-reference

Establishment peer ledger

237120 · OK · Tulsa

809 Natural gas processing plant construction employers nationwide with a credible TCR · 5,320 rated employers in Oklahoma with headcount on file · 1,004 employers in Tulsa, 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	Conway Phillips Holding, LLC	BRADDOCK, PA	0.3 TCR
NAICS-TCR	Jones Contractors, Inc	HENDERSON, TN	0.3 TCR
NAICS-TCR	Michels Pipeline Inc-WI-Brownsville	BROWNSVILLE, WI	0.3 TCR
NAICS-TCR	Chevron El Segundo Refinery	EL SEGUNDO, CA	0.3 TCR
STATE-SIZE	Integrated Service Company LLC.	TULSA	959 FTE
STATE-SIZE	Balon Corporation	OKLAHOMA CITY	959 FTE
STATE-SIZE	US OK Oklahoma City 02	OKLAHOMA CITY	963 FTE
STATE-SIZE	Alorica	TULSA	972 FTE
CITY-NEAR	Saint Francis Hospital, Inc.	Tulsa	6,668 FTE
CITY-NEAR	H&P IDC - U.S. Land	Tulsa	6,014 FTE
CITY-NEAR	TUL-TULSA-MAINTENANCE BASE	Tulsa	5,184 FTE
CITY-NEAR	4795-AA-TUL-TULSA-TUL-TRML	Tulsa	4,794 FTE
NAT-TCR	RailPros Field Services	Irving, TX	0.3 TCR
NAT-TCR	Corporate	Atlanta, GA	0.3 TCR
NAT-TCR	Fisher Controls International, LLC.	Sherman, TX	0.3 TCR
NAT-TCR	Winfield United - Ames	Ames, IA	0.3 TCR
NAT-SIZE	North Reading Corporate Office	North Reading, MA	947 FTE
NAT-SIZE	WJ Marlton	Marlton, NJ	947 FTE
NAT-SIZE	Blue Grass Chem. Demil.	Richmond, KY	947 FTE
NAT-SIZE	Amazon.com Services LLC - ORD9	Channahon, IL	947 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: 2024, 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.