Clean Air Act stationary source · ICIS-AIR OK0000004004500640

UNBRIDLED RESOURCES LLC / WILLA CTB, Arnett, OK: Clean Air Act compliance record, inspections, violations, penalties

Name: UNBRIDLED RESOURCES LLC / WILLA CTB, ICIS-AIR OK0000004004500640: Clean Air Act stationary source record
Creator: Velarion Records
License: https://www.usa.gov/government-works

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
5Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
1Formal enforcement actions since January 1, 2017

UNBRIDLED RESOURCES LLC / WILLA CTB, at 0.3 MI W OF E0680 RD/US283, Arnett in Ellis County, Oklahoma, is an operating minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filed	UNBRIDLED RESOURCES LLC / WILLA CTB
ICIS-AIR ID	OK0000004004500640
EPA facility registry ID	110070551531
Operating status	Operating
Emissions classification	Minor source
Current violation status (ICIS-AIR high-priority violation field)	No Violation Identified
Address	0.3 MI W OF E0680 RD/US283, Arnett, OK 73832
County	Ellis County
In a nonattainment county	No (EPA Green Book)
Industry (NAICS)	Oil and gas extraction (NAICS 2111)
SIC code	1311
EPA region	06

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs UNBRIDLED RESOURCES LLC / WILLA CTB is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

5Evaluations since January 1, 2017
1Full compliance evaluations

Date	What EPA recorded	Agency	Programs
August 28, 2023	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 13, 2020	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 31, 2019	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 30, 2019	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 1, 2019	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

1Violation determinations since January 1, 2017
0Of them high-priority

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

Date	What EPA recorded	Agency	Programs
October 20, 2023	Earliest FRV determination	State	New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Date	What EPA recorded	Agency	Penalty, as filed
July 3, 2024	Administrative Order	State	$15,645

Informal enforcement

Date	What EPA recorded	Agency
October 27, 2023	Notice of Violation	State

Stack tests

0Stack tests since January 1, 2017
0Recorded as failed

EPA’s stack test file holds no test at ICIS-AIR OK0000004004500640 since January 1, 2017.

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110070551531 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.

This page from the Velarion Records public-records register covers the Clean Air Act stationary source compliance record for UNBRIDLED RESOURCES LLC / WILLA CTB in Arnett, OK, under ICIS-AIR OK0000004004500640. It lists operating status Operating, emissions classification Minor source, and current violation status No Violation Identified. The figures listed are 5 compliance evaluations since January 1, 2017, 0 high-priority violations since January 1, 2017, and 1 formal enforcement actions since January 1, 2017.