# MARKWEST UTICA EMG, L.L.C. — Harrison County, OH

**Citation:** NPMS FIPS 39067 / OPID 39941  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

39.298083 active Natural Gas Liquids pipeline miles in Harrison County, OH; public NPMS snapshot 2026-07-16.

## Document text

MARKWEST UTICA EMG, L.L.C. (PHMSA OPID 39941) reported 39.298083 active Natural Gas Liquids pipeline miles in Harrison County, OH (county FIPS 39067) 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: `e8e535c55f472b020b83de72bf3b4b0580e77dc065fd1267534fb4523c14a3ed`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T21:25:36.440Z
- Document slug: `npms-mileage-31bed473d24fc7715873c6c0`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "39067",
  "stateFips": "39",
  "state": "OH",
  "county": "Harrison County",
  "region": "Harrison County, OH",
  "operator": {
    "id": "39941",
    "name": "MARKWEST UTICA EMG, L.L.C."
  },
  "commodity": "Natural Gas Liquids",
  "mileage": 39.29808332,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 8706,
    "rowSha256": "2c0131b5d5ff38ad025c627ef58f3025d29b9906285ea7a8003f650b45a2b73d"
  },
  "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": "MARKWEST UTICA EMG, L.L.C."
}
```