# UNION OIL CO OF CALIFORNIA — Notice of Amendment

**Citation:** CPF 520050021  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2005-10-26

CLOSED notice of amendment citing 191.23(b)(4), 192.605(b)(1), 192.605(b)(3), 192.605(b)(8), 192.709(b), 192.713.

## Document text

Notice of Amendment involving UNION OIL CO OF CALIFORNIA. PHMSA's enforcement data identifies the cited regulations as 191.23(b)(4),  192,  192.605(b)(1),  192.605(b)(3),  192.605(b)(8),  192.709(b),  192.713. The case was opened on 2005-10-26 and is reported as closed as of 2005-12-28. Open the official case record for notices, responses, orders, and the latest status.

PHMSA lists no public case documents for this record.

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/520050021>
- Source ID: `phmsa-enforcement`
- SHA-256: `a5a1c7fb222ae4c78231bb4528a1b492d3b85aa50e6046c7f8a8f2a558727e3f`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-23T00:55:25.282Z
- Document slug: `phmsa-enforcement-520050021`

### Source metadata

```json
{
  "cpf": "520050021",
  "operator": "UNION OIL CO OF CALIFORNIA",
  "region": "Western",
  "pipelineType": "GAS INTRASTATE ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "191.23(b)(4)",
    "192.605(b)(1)",
    "192.605(b)(3)",
    "192.605(b)(8)",
    "192.709(b)",
    "192.713"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 0,
  "attachments": [],
  "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": "UNION OIL CO OF CALIFORNIA"
}
```