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

**Citation:** NPMS FIPS 29189 / OPID 32147  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

7.631239 active Crude Oil pipeline miles in St. Louis County, MO; public NPMS snapshot 2026-07-16.

## Document text

MARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 7.631239 active Crude Oil pipeline miles in St. Louis County, MO (county FIPS 29189) 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: `87eb77e0099d8ae358f28f457d4e3a994bcd442efa69a7bdfe7b756cc590a423`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T12:09:50.390Z
- Document slug: `npms-mileage-da21e7c231e84f327f299eaf`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "29189",
  "stateFips": "29",
  "state": "MO",
  "county": "St. Louis County",
  "region": "St. Louis County, MO",
  "operator": {
    "id": "32147",
    "name": "MARATHON PIPE LINE LLC"
  },
  "commodity": "Crude Oil",
  "mileage": 7.63123864,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 7006,
    "rowSha256": "28bca461a45dcebaf82431d7b2518785542d8910834152472370df7ff50e1463"
  },
  "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"
}
```