# ONEOK WESTEX TRANSMISSION, LLC — Ector County, TX

**Citation:** NPMS FIPS 48135 / OPID 31531  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

184.192265 active Natural Gas pipeline miles in Ector County, TX; public NPMS snapshot 2026-07-16.

## Document text

ONEOK WESTEX TRANSMISSION, LLC (PHMSA OPID 31531) reported 184.192265 active Natural Gas pipeline miles in Ector County, TX (county FIPS 48135) 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: `6fac9c9cb10fd4f2a07184f81ba5eb31727648703b9ccd4727e1c8f6e924b0b4`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-27T13:39:13.004Z
- Document slug: `npms-mileage-5c1cbd108db8f28aacc123e5`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48135",
  "stateFips": "48",
  "state": "TX",
  "county": "Ector County",
  "region": "Ector County, TX",
  "operator": {
    "id": "31531",
    "name": "ONEOK WESTEX TRANSMISSION, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 184.19226515,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 11579,
    "rowSha256": "7474f89363fbd301c627bf03e5d4893d49df0cdf9fc4bfbbe1df0e6393742a8a"
  },
  "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"
}
```