---
schema_version: "secwatch.filing_event.v1"
accession: "0001423902-25-000110"
form_type: "8-K"
ticker: "WES"
cik: "0001423902"
company_name: "Western Midstream Partners, LP"
filed_at: "2025-12-04T23:59:59+00:00"
generated_at: "2026-05-16T14:36:29.376483+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# WES subsidiary prices $1.2B senior notes offering in two tranches due 2031/2035

## Summary
- $600M 4.800% Senior Notes due 2031 and $600M 5.500% Senior Notes due 2035 issued on Dec 4, 2025.
- Net proceeds to repay maturing 4.650% notes due 2026 and commercial paper (including borrowings for Aris Water Solutions acquisition).
- Notes rank equally with existing senior indebtedness; no subsidiary guarantees initially but may apply if subsidiaries become borrowers under revolving credit facility.
- Interest payable semi-annually; 2031 notes mature March 1, 2031; 2035 notes mature Dec 15, 2035.

## SEC filing metadata
- accession: 0001423902-25-000110
- form_type: 8-K
- ticker: WES
- cik: 0001423902
- company_name: Western Midstream Partners, LP
- filed_at: 2025-12-04T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1423902/000142390225000110/0001423902-25-000110-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1423902/000142390225000110/wes-20251201.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001423902-25-000110
- JSON: https://secwatch.observer/filing/0001423902-25-000110.json
- Plain text: https://secwatch.observer/filing/0001423902-25-000110.txt

## Key facts
- Debt Financings
  Western Midstream Partners, LP incurred senior notes of $600,000,000 aggregate principal amount of 4.800% Senior Notes due 2031 and $600,000,000 aggregate principal amount of 5 with Computershare Trust Company, National Association (as Trustee) at 4.800% on the 2031 Notes and 5.500% on the 2035 Notes maturing 2031 Notes mature on March 1, 2031; 2035 Notes mature on December 15, 2035.
  - Instrument: senior notes
  - Principal: $600,000,000 aggregate principal amount of 4.800% Senior Notes due 2031 and $600,000,000 aggregate principal amount of 5
  - Counterparty: Computershare Trust Company, National Association (as Trustee)
  - Rate: 4.800% on the 2031 Notes and 5.500% on the 2035 Notes
  - Maturity: 2031 Notes mature on March 1, 2031; 2035 Notes mature on December 15, 2035
  - Event: incurrence
  source text: On December 4, 2025, Western Midstream Operating, LP (“WES Operating”), a subsidiary of Western Midstream Partners, LP (NYSE: WES) (“WES”), completed the public offering of $600,000,000 aggregate principal amount of 4.800% Senior Notes due 2031 (the “2031 Notes”) and $600,000,000 aggregate principal amount of 5.500% Senior Notes due 2035 (the “2035 Notes” and, together with the 2031 Notes, the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1423902/000142390225000110/0001423902-25-000110-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.