# DOUBLE H — Custer County, MT

**Citation:** NPMS FIPS 30017 / OPID 39440  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

23.642472 active Crude Oil pipeline miles in Custer County, MT; public NPMS snapshot 2026-07-16.

## Document text

DOUBLE H (PHMSA OPID 39440) reported 23.642472 active Crude Oil pipeline miles in Custer County, MT (county FIPS 30017) 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: `3a2ff784c8980eb4e3cba0a4c19389d25b1fc2d8999ca9fc06fe30006fdf929a`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T22:48:43.262Z
- Document slug: `npms-mileage-d31736290b406ff90a8d9012`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "30017",
  "stateFips": "30",
  "state": "MT",
  "county": "Custer County",
  "region": "Custer County, MT",
  "operator": {
    "id": "39440",
    "name": "DOUBLE H"
  },
  "commodity": "Crude Oil",
  "mileage": 23.64247159,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 7085,
    "rowSha256": "814bffbc351a9d76a0f7843c47780676052b4a908ab3c6706183e39a2ad9b6c2"
  },
  "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": "DOUBLE H"
}
```