# PLAINS PIPELINE MIDCON LLC — Harper County, OK

**Citation:** NPMS FIPS 40059 / OPID 40498  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

49.475797 active Crude Oil pipeline miles in Harper County, OK; public NPMS snapshot 2026-07-16.

## Document text

PLAINS PIPELINE MIDCON LLC (PHMSA OPID 40498) reported 49.475797 active Crude Oil pipeline miles in Harper County, OK (county FIPS 40059) 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: `a166ac45239d3848daf953fe22e02442b2714d441a6dc34fcfd38aceb75d45b2`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T20:22:43.424Z
- Document slug: `npms-mileage-70fe060b73994d2ea57cfa79`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "40059",
  "stateFips": "40",
  "state": "OK",
  "county": "Harper County",
  "region": "Harper County, OK",
  "operator": {
    "id": "40498",
    "name": "PLAINS PIPELINE MIDCON LLC"
  },
  "commodity": "Crude Oil",
  "mileage": 49.47579736,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 9347,
    "rowSha256": "14ff14bf5f46491cc7a84593fc045f96c41401c505ea68cb649f6f46dbb00977"
  },
  "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": "PLAINS PIPELINE MIDCON LLC"
}
```