# MARATHON PIPE LINE LLC — St. Charles County, MO

**Citation:** NPMS FIPS 29183 / OPID 32147  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

37.529883 active Crude Oil pipeline miles in St. Charles County, MO; public NPMS snapshot 2026-07-16.

## Document text

MARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 37.529883 active Crude Oil pipeline miles in St. Charles County, MO (county FIPS 29183) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.

## Provenance

- Official: Yes
- Source: <https://www.npms.phmsa.dot.gov/Documents/NPMS_Active_Pipe_County_Mileage.xlsx>
- Source ID: `npms-public-summaries`
- SHA-256: `76d8341d4bf8ca5104fd8bde202c09dc7aa68be784af93c25b4c1c987ac97e07`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-24T00:31:22.176Z
- Document slug: `npms-mileage-92a76f29a8e21282d0916459`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "29183",
  "stateFips": "29",
  "state": "MO",
  "county": "St. Charles County",
  "region": "St. Charles County, MO",
  "operator": {
    "id": "32147",
    "name": "MARATHON PIPE LINE LLC"
  },
  "commodity": "Crude Oil",
  "mileage": 37.52988258,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 6990,
    "rowSha256": "3687ff57901f41c59834e7c0153cd6864046e2c34db36f25cd63d21fef6f2705"
  },
  "citedSections": [
    "195.61"
  ],
  "caveat": "Public aggregate snapshot only. It is not a complete representation of exact pipeline locations, may be updated, and is not an agency finding about facility condition.",
  "jurisdiction": "US",
  "operatorName": "MARATHON PIPE LINE LLC"
}
```