# M6 MIDSTREAM LLC — Harrison County, TX

**Citation:** NPMS FIPS 48203 / OPID 31613  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

12.748176 active Natural Gas pipeline miles in Harrison County, TX; public NPMS snapshot 2026-07-16.

## Document text

M6 MIDSTREAM LLC (PHMSA OPID 31613) reported 12.748176 active Natural Gas pipeline miles in Harrison County, TX (county FIPS 48203) 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: `7195beabecaff0d9cf02143510e38fb6db38da0c2dc92a61cd3364145e56e8dc`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T12:32:28.235Z
- Document slug: `npms-mileage-89b14b299ec4e14a7cea7588`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48203",
  "stateFips": "48",
  "state": "TX",
  "county": "Harrison County",
  "region": "Harrison County, TX",
  "operator": {
    "id": "31613",
    "name": "M6 MIDSTREAM LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 12.74817614,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 12214,
    "rowSha256": "613318d95f12e2fb570d10fc5ddc2953a1780c8f80bfe17bd759dcf2abb74973"
  },
  "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": "M6 MIDSTREAM LLC"
}
```