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

**Citation:** NPMS FIPS 39111 / OPID 39941  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

6.291818 active Natural Gas Liquids pipeline miles in Monroe County, OH; public NPMS snapshot 2026-07-16.

## Document text

MARKWEST UTICA EMG, L.L.C. (PHMSA OPID 39941) reported 6.291818 active Natural Gas Liquids pipeline miles in Monroe County, OH (county FIPS 39111) 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: `a7ce67741c4bac4d554d2e26f47ec2e4af0ceda45cee7ceaaa25c69f43b56a5d`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T23:20:52.794Z
- Document slug: `npms-mileage-ff9609866a348c8946a40463`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "39111",
  "stateFips": "39",
  "state": "OH",
  "county": "Monroe County",
  "region": "Monroe County, OH",
  "operator": {
    "id": "39941",
    "name": "MARKWEST UTICA EMG, L.L.C."
  },
  "commodity": "Natural Gas Liquids",
  "mileage": 6.29181818,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 8838,
    "rowSha256": "a65b59e176f861f3aa2e648bdf6c7967ba336e71e9e0d457b29a2a3d86a5d775"
  },
  "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."
}
```