Enforcement Action Details
Case CPF: 320135014
ONEOK NGL PIPELINE, LLC
This report lists key information pertaining to a particular enforcement case(1). For cases initiated after January 1, 2007, electronic files of PHMSA’s initial notice letter, the operator’s initial response letter (if any), and PHMSA’s Final Order (if an Order is issued) are provided. PHMSA only issues Final Orders in certain situations. For example, Final Orders are not issued for Warning Letters and most Notices of Amendment.
| Case Type | Notice of Probable Violation |
|---|---|
| Status | CLOSED |
| Date Opened | 05/13/2013 |
| Date Closed | 05/19/2026 |
| Proposed Actions | Proposed Civil Penalty, Proposed Civil Penalty/Proposed Compliance Order |
| Total Proposed Item(s) | 9 |
| Item Subject(s) | OME Procedural Manual [195.402(a)] - 2 item(s) Reporting [195.52(a)(2), 195.54(a)] - 2 item(s) Operation and/or Maintenance [195.401(b), 195.406(a)(2), 195.408(a), 195.420(a), 195.428(a)] - 5 item(s) |
| Latest Order Type | Consent Order |
| Latest Order Date | 10/23/2018 |
| Proposed Civil Penalty | $559,100 |
| Assessed Civil Penalty | $550,400 |
| Collected Civil Penalty | $550,400 |
| Basis for Penalty Reduction | Additional evidence |
| 30 Days Incident Report | Hazardous Liquid - 20080383 (Date: 05/17/08; Location: ELLSWORTH KS) |
| Region | Central |
Documents
Response options for NOPV and NOA cases are included in the enclosure “Response Options for Pipeline Operators & Excavators in Enforcement Proceedings”, this document is also available on the PHMSA Pipeline Enforcement webpage. All other case types include response details in the issued notice or order (as appropriate).
The corresponding document format at the time the case was opened may differ from document displayed.
Sources
- PHMSA Work Management System as of 08/04/2026.
Information provided on this website is intended to enhance public understanding of PHMSA's enforcement program.
Aggregate and company-specific statistical information reflecting PHMSA's enforcement actions is provided beginning with 2002. Key documents associated with new administrative enforcement cases are provided beginning with 2007. Agency orders issued since 2002 are also provided.
The search feature may not retrieve every document associated with each individual enforcement action. Enforcement data is updated monthly as additional cases are initiated and other cases are resolved. Historical totals will change over time to reflect changes in case status.