# MARATHON PIPE LINE LLC — Warning Letter

**Citation:** CPF 420055006W  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2005-01-06

CLOSED warning letter citing 195.234(b), 195.559(f).

## Document text

Warning Letter involving MARATHON PIPE LINE LLC. PHMSA's enforcement data identifies the cited regulations as 195.234(b),  195.559(f). The case was opened on 2005-01-06 and is reported as closed as of 2005-01-06. 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/420055006W>
- Source ID: `phmsa-enforcement`
- SHA-256: `0b94144d0cea294bdb554939340e052562f3b9f1249e11c3f6114168f521efb9`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-22T01:56:13.551Z
- Document slug: `phmsa-enforcement-420055006w`

### Source metadata

```json
{
  "cpf": "420055006W",
  "operator": "MARATHON PIPE LINE LLC",
  "region": "Southwest",
  "pipelineType": "INTERSTATE LIQUID ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "195.234(b)",
    "195.559(f)"
  ],
  "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": "MARATHON PIPE LINE LLC"
}
```