# IRON HORSE MIDSTREAM, LLC — Grady County, OK

**Citation:** NPMS FIPS 40051 / OPID 39759  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

8.6914 active Natural Gas pipeline miles in Grady County, OK; public NPMS snapshot 2026-07-16.

## Document text

IRON HORSE MIDSTREAM, LLC (PHMSA OPID 39759) reported 8.6914 active Natural Gas pipeline miles in Grady County, OK (county FIPS 40051) 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: `1ccee52eb01deb0e5de3949f53e2fd29aa607e00a42e004daa2c5c6307e40083`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T21:56:58.552Z
- Document slug: `npms-mileage-caa981288010df688c35b0c2`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "40051",
  "stateFips": "40",
  "state": "OK",
  "county": "Grady County",
  "region": "Grady County, OK",
  "operator": {
    "id": "39759",
    "name": "IRON HORSE MIDSTREAM, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 8.69139962,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 9307,
    "rowSha256": "53a086d1bf011248568bbf0ff715180792d365e51ea834ad9abded7a39e8ad8c"
  },
  "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": "IRON HORSE MIDSTREAM, LLC"
}
```