# 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

0.486941 active Natural Gas Liquids pipeline miles in Harrison County, TX; public NPMS snapshot 2026-07-16.

## Document text

M6 MIDSTREAM LLC (PHMSA OPID 31613) reported 0.486941 active Natural Gas Liquids 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: `59224eab25d136cd7665d8e4af2442215cacb644adcf207fecff39a849663f0c`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T22:05:35.605Z
- Document slug: `npms-mileage-5a921763a365b2898bcc391d`

### 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 Liquids",
  "mileage": 0.48694129,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 12213,
    "rowSha256": "f5deba699a16c55a5d6bbf16d8eddc0b85780f62b0ddb1cef7900e49d75aa0a5"
  },
  "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": "M6 MIDSTREAM LLC"
}
```