# ONEOK WESTEX TRANSMISSION, LLC — Donley County, TX

**Citation:** NPMS FIPS 48129 / OPID 31531  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

26.668413 active Natural Gas pipeline miles in Donley County, TX; public NPMS snapshot 2026-07-16.

## Document text

ONEOK WESTEX TRANSMISSION, LLC (PHMSA OPID 31531) reported 26.668413 active Natural Gas pipeline miles in Donley County, TX (county FIPS 48129) 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: `8606743ba1a72e421e6b49fcd3ee5e65063a0698908df116bd0320a6aadcf88c`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-27T01:02:56.253Z
- Document slug: `npms-mileage-5454d2a113dc291cc5479e9a`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48129",
  "stateFips": "48",
  "state": "TX",
  "county": "Donley County",
  "region": "Donley County, TX",
  "operator": {
    "id": "31531",
    "name": "ONEOK WESTEX TRANSMISSION, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 26.66841288,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 11538,
    "rowSha256": "292e593bfcb05294fd591ebe5d1e85daa82cff100b3e938c478bab627095728a"
  },
  "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": "ONEOK WESTEX TRANSMISSION, LLC"
}
```