# MARATHON PIPE LINE LLC — Los Angeles County, CA

**Citation:** NPMS FIPS 06037 / OPID 32147  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

19.120909 active Natural Gas pipeline miles in Los Angeles County, CA; public NPMS snapshot 2026-07-16.

## Document text

MARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 19.120909 active Natural Gas pipeline miles in Los Angeles County, CA (county FIPS 06037) 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: `93188448d2b9c61d073b531f72128095fc78f33e28eab49cfd02e384203602e7`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T11:28:04.068Z
- Document slug: `npms-mileage-f8044fd880a91b3b8129dbf2`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "06037",
  "stateFips": "06",
  "state": "CA",
  "county": "Los Angeles County",
  "region": "Los Angeles County, CA",
  "operator": {
    "id": "32147",
    "name": "MARATHON PIPE LINE LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 19.12090909,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 738,
    "rowSha256": "a8a53d77679588e17bb5d209a745d3b1bc7e93d179b66cec5a05ec8a981d2950"
  },
  "citedSections": [
    "191.29"
  ],
  "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"
}
```