# WILLIAMS FIELD SERVICES — Sweetwater County, WY

**Citation:** NPMS FIPS 56037 / OPID 30826  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

188.901333 active Other HVLs pipeline miles in Sweetwater County, WY; public NPMS snapshot 2026-07-16.

## Document text

WILLIAMS FIELD SERVICES (PHMSA OPID 30826) reported 188.901333 active Other HVLs pipeline miles in Sweetwater County, WY (county FIPS 56037) 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: `a226f516487659ab133d91ed922a2280cd4008f8b6e91bd9f83558728f0eba95`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-24T01:44:30.900Z
- Document slug: `npms-mileage-fe2bd49fe916c867d6ef7743`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "56037",
  "stateFips": "56",
  "state": "WY",
  "county": "Sweetwater County",
  "region": "Sweetwater County, WY",
  "operator": {
    "id": "30826",
    "name": "WILLIAMS FIELD SERVICES"
  },
  "commodity": "Other HVLs",
  "mileage": 188.90133333,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 15472,
    "rowSha256": "a9be772e36cdd54dd8191722fab85aac9148d82c387956e8e25ec38d98afef32"
  },
  "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": "WILLIAMS FIELD SERVICES"
}
```