# MARATHON PIPE LINE LLC — Williamson County, IL

**Citation:** NPMS FIPS 17199 / OPID 32147  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

21.220657 active Non-HVL Petroleum Product pipeline miles in Williamson County, IL; public NPMS snapshot 2026-07-16.

## Document text

MARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 21.220657 active Non-HVL Petroleum Product pipeline miles in Williamson County, IL (county FIPS 17199) 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: `931145f02c75e0b680162559c5542864ea93c830810d93c4def4b2dce90602a6`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-24T18:26:00.610Z
- Document slug: `npms-mileage-003653b2a1dba1ce3fb1417e`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "17199",
  "stateFips": "17",
  "state": "IL",
  "county": "Williamson County",
  "region": "Williamson County, IL",
  "operator": {
    "id": "32147",
    "name": "MARATHON PIPE LINE LLC"
  },
  "commodity": "Non-HVL Petroleum Product",
  "mileage": 21.22065719,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 2347,
    "rowSha256": "02fe1bd3d2d1b140087eaa9e527a326144428db373ab83d60641f36a17f766cb"
  },
  "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"
}
```