# MARATHON PIPE LINE LLC — Harris County, TX

**Citation:** NPMS FIPS 48201 / OPID 32147  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

26.145629 active Non-HVL Petroleum Product pipeline miles in Harris County, TX; public NPMS snapshot 2026-07-16.

## Document text

MARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 26.145629 active Non-HVL Petroleum Product pipeline miles in Harris County, TX (county FIPS 48201) 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: `ac91f604eaea84476a2d6a60bf3034755093fbb70752f35d550bd256bfbee8ff`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T05:24:18.314Z
- Document slug: `npms-mileage-a9e070f9f752e7b69c52a938`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48201",
  "stateFips": "48",
  "state": "TX",
  "county": "Harris County",
  "region": "Harris County, TX",
  "operator": {
    "id": "32147",
    "name": "MARATHON PIPE LINE LLC"
  },
  "commodity": "Non-HVL Petroleum Product",
  "mileage": 26.14562879,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 12142,
    "rowSha256": "1f7e3f78d15ebe6b2ebe52bd427310267723ad5bc7f64189fea3e6ebf430b361"
  },
  "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"
}
```