# SENTINEL MIDSTREAM OPERATING LLC — Harris County, TX

**Citation:** NPMS FIPS 48201 / OPID 40275  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

29.89504 active Crude Oil pipeline miles in Harris County, TX; public NPMS snapshot 2026-07-16.

## Document text

SENTINEL MIDSTREAM OPERATING LLC (PHMSA OPID 40275) reported 29.89504 active Crude Oil pipeline miles in Harris County, TX (county FIPS 48201) 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: `13af5bde1e64a847ce07f3dfb8af907c70847388a87cde1d80b38cd9d03fdf6c`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T16:01:49.924Z
- Document slug: `npms-mileage-269ac43295e109b673a0a924`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48201",
  "stateFips": "48",
  "state": "TX",
  "county": "Harris County",
  "region": "Harris County, TX",
  "operator": {
    "id": "40275",
    "name": "SENTINEL MIDSTREAM OPERATING LLC"
  },
  "commodity": "Crude Oil",
  "mileage": 29.89503977,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 12186,
    "rowSha256": "c60253c68f837fb4215a8c1383055a404b5ebf9b1c7520baff52e0d3a955955d"
  },
  "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": "SENTINEL MIDSTREAM OPERATING LLC"
}
```