# TESORO HIGH PLAINS PIPELINE COMPANY LLC — Notice of Amendment

**Citation:** CPF 520075018M  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2007-04-17

CLOSED notice of amendment citing 195.452(e), 195.452(f)(8), 195.452(h), 195.452(h)(1), 195.452(h)(2), 195.452(h)(4), 195.452(i)(3), 195.452(j)(3).

## Document text

Notice of Amendment involving TESORO HIGH PLAINS PIPELINE COMPANY LLC. PHMSA's enforcement data identifies the cited regulations as 195.452(e),  195.452(f)(8),  195.452(h),  195.452(h)(1),  195.452(h)(2),  195.452(h)(4),  195.452(i)(3),  195.452(j)(3). The case was opened on 2007-04-17 and is reported as closed as of 2008-05-28. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

520075018M_NOA letter_04172007.pdf: https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018M_NOA%20letter_04172007.pdf

520075018m_noa letter_04172007_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018m_noa%20letter_04172007_text.pdf

520075018M_operator response_05222008.pdf: https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018M_operator%20response_05222008.pdf

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/520075018M>
- Source ID: `phmsa-enforcement`
- SHA-256: `82d96951706b151edd216bc166fea448982d584dc25d1aea9c3c7ba35921f685`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-25T19:01:20.451Z
- Document slug: `phmsa-enforcement-520075018m`

### Source metadata

```json
{
  "cpf": "520075018M",
  "operator": "TESORO HIGH PLAINS PIPELINE COMPANY LLC",
  "region": "Western",
  "pipelineType": "INTERSTATE LIQUID ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "195.452(e)",
    "195.452(f)(8)",
    "195.452(h)",
    "195.452(h)(1)",
    "195.452(h)(2)",
    "195.452(h)(4)",
    "195.452(i)(3)",
    "195.452(j)(3)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 3,
  "attachments": [
    {
      "name": "520075018M_NOA letter_04172007.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018M_NOA%20letter_04172007.pdf",
      "bytes": 77421,
      "category": "case_document"
    },
    {
      "name": "520075018m_noa letter_04172007_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018m_noa%20letter_04172007_text.pdf",
      "bytes": 412621,
      "category": "case_document"
    },
    {
      "name": "520075018M_operator response_05222008.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/520075018M/520075018M_operator%20response_05222008.pdf",
      "bytes": 523144,
      "category": "party_submission"
    }
  ],
  "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": "TESORO HIGH PLAINS PIPELINE COMPANY LLC"
}
```