# ROCKY MOUNTAIN NATURAL GAS LLC — Notice of Probable Violation

**Citation:** CPF 12026037NOPV  
**Type / status:** enforcement / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-03-17

OPEN notice of probable violation citing 192.12(b)(2), 192.12(c).

## Document text

Notice of Probable Violation involving ROCKY MOUNTAIN NATURAL GAS LLC. PHMSA's enforcement data identifies the cited regulations as 192.12(b)(2),  192.12(c). The case was opened on 2026-03-17 and is reported as open. Proposed civil penalty: $163,600. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

12026037NOPV_Operator Response to Notice_05182026_(25-330098).pdf: https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_Operator%20Response%20to%20Notice_05182026_(25-330098).pdf

12026037NOPV_PCP PCO_03172026_(25-330098).pdf: https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_PCP%20PCO_03172026_(25-330098).pdf

12026037NOPV_PCP PCO_03172026_(25-330098)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_PCP%20PCO_03172026_(25-330098)_text.pdf

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/12026037NOPV>
- Source ID: `phmsa-enforcement`
- SHA-256: `c946598e22d8a7257ad54ea301e8d1b9ab2d1068eaf5b7ed09e52ff8763a2638`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-23T22:46:41.816Z
- Document slug: `phmsa-enforcement-12026037nopv`

### Source metadata

```json
{
  "cpf": "12026037NOPV",
  "operator": "ROCKY MOUNTAIN NATURAL GAS LLC",
  "region": "Eastern",
  "pipelineType": "INTRASTATE UNDERGROUND NG STORAGE",
  "caseStatus": "OPEN",
  "citedSections": [
    "192.12(b)(2)",
    "192.12(c)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 3,
  "attachments": [
    {
      "name": "12026037NOPV_Operator Response to Notice_05182026_(25-330098).pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_Operator%20Response%20to%20Notice_05182026_(25-330098).pdf",
      "bytes": 244647,
      "category": "party_submission"
    },
    {
      "name": "12026037NOPV_PCP PCO_03172026_(25-330098).pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_PCP%20PCO_03172026_(25-330098).pdf",
      "bytes": 228728,
      "category": "case_document"
    },
    {
      "name": "12026037NOPV_PCP PCO_03172026_(25-330098)_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/12026037NOPV/12026037NOPV_PCP%20PCO_03172026_(25-330098)_text.pdf",
      "bytes": 254822,
      "category": "case_document"
    }
  ],
  "extractedAgencyDocumentCount": 0,
  "attachmentPolicy": "Official attachment links are retained. Agency-issued documents may also include a verified local PDF and page-level text representation.",
  "jurisdiction": "US",
  "operatorName": "ROCKY MOUNTAIN NATURAL GAS LLC"
}
```