---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-293680"
form_type: "8-K"
ticker: null
cik: "0001336047"
company_name: "Boardwalk Pipeline Partners, LP"
filed_at: "2025-11-24T23:59:59+00:00"
generated_at: "2026-05-16T17:16:18.822688+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Boardwalk Pipeline issues $550M of 5.375% senior notes due 2036

## Summary
- Principal amount $550M, interest rate 5.375%, maturity 2036.
- Interest payable semiannually on Feb 15 and Aug 15, first payment Feb 15, 2026.
- Notes are fully and unconditionally guaranteed by parent Boardwalk Pipeline Partners LP.
- Redemption: make-whole prior to Nov 15, 2035; at par thereafter.
- No financial maintenance covenants or change-in-control put provisions.

## SEC filing metadata
- accession: 0001193125-25-293680
- form_type: 8-K
- cik: 0001336047
- company_name: Boardwalk Pipeline Partners, LP
- filed_at: 2025-11-24T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1336047/000119312525293680/0001193125-25-293680-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1336047/000119312525293680/d16190d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-293680
- JSON: https://secwatch.observer/filing/0001193125-25-293680.json
- Plain text: https://secwatch.observer/filing/0001193125-25-293680.txt

## Key facts
- Debt Financings
  Boardwalk Pipeline Partners, LP incurred senior notes of $550.0 million with The Bank of New York Mellon Trust Company, as trustee at 5.375% maturing due 2036.
  - Instrument: senior notes
  - Principal: $550.0 million
  - Counterparty: The Bank of New York Mellon Trust Company, as trustee
  - Rate: 5.375%
  - Maturity: due 2036
  - Event: incurrence
  source text: completed its offering of $550.0 million in aggregate principal amount of 5.375% senior unsecured notes due 2036
  evidence_url: https://www.sec.gov/Archives/edgar/data/1336047/000119312525293680/0001193125-25-293680-index.htm

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