# NORTHWEST NATURAL GAS CO — Tillamook County, OR

**Citation:** NPMS FIPS 41057 / OPID 13840  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

4.787472 active Natural Gas pipeline miles in Tillamook County, OR; public NPMS snapshot 2026-07-16.

## Document text

NORTHWEST NATURAL GAS CO (PHMSA OPID 13840) reported 4.787472 active Natural Gas pipeline miles in Tillamook County, OR (county FIPS 41057) 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: `5973ea57722186d1b5bf13e6118e9b96f7eb4f8da3bcef9fe449082dfd6187b7`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-27T08:36:07.107Z
- Document slug: `npms-mileage-9368a411c7178326bee3d718`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "41057",
  "stateFips": "41",
  "state": "OR",
  "county": "Tillamook County",
  "region": "Tillamook County, OR",
  "operator": {
    "id": "13840",
    "name": "NORTHWEST NATURAL GAS CO"
  },
  "commodity": "Natural Gas",
  "mileage": 4.78747159,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 9914,
    "rowSha256": "60fea57be858bf6f15dc1cba22001fcf641b78f25ebdff923e0f0e4b285f05b9"
  },
  "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": "NORTHWEST NATURAL GAS CO"
}
```