---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-006487"
form_type: "8-K"
ticker: "BKH"
cik: "0001130464"
company_name: "BLACK HILLS CORP /SD/"
filed_at: "2023-03-07T23:59:59+00:00"
generated_at: "2026-06-18T09:19:18.818613+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Black Hills issues $350M 5.950% senior notes due 2028

## Summary
- Issued $350M aggregate principal of 5.950% Notes due March 15, 2028.
- Net proceeds ~$346.8M after underwriting discounts and original issue discount.
- Proceeds to repay commercial paper; remainder for general corporate purposes.
- Notes are unsecured senior obligations ranking equally with existing unsecured debt.
- Interest payable semi-annually on March 15 and September 15, starting September 15, 2023.

## SEC filing metadata
- accession: 0000950170-23-006487
- form_type: 8-K
- ticker: BKH
- cik: 0001130464
- company_name: BLACK HILLS CORP /SD/
- filed_at: 2023-03-07T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 8.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1130464/000095017023006487/0000950170-23-006487-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1130464/000095017023006487/bkh-20230302.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-006487
- JSON: https://secwatch.observer/filing/0000950170-23-006487.json
- Plain text: https://secwatch.observer/filing/0000950170-23-006487.txt

## Key facts
- Material Agreements
  BLACK HILLS CORP /SD/ entered into New Supplemental Indenture.
  - Action: entry
  - Agreement: notes offering
  source text: Each of the Underwriting Agreement and the New Supplemental Indenture contains representations and warranties, covenants and other terms that are customary for such kinds of agreements.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1130464/000095017023006487/0000950170-23-006487-index.htm
- Material Agreements
  BLACK HILLS CORP /SD/ entered into Underwriting Agreement.
  - Action: entry
  - Agreement: underwriting
  source text: Each of the Underwriting Agreement and the New Supplemental Indenture contains representations and warranties, covenants and other terms that are customary for such kinds of agreements.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1130464/000095017023006487/0000950170-23-006487-index.htm

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