---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-101196"
form_type: "8-K"
ticker: "BKH"
cik: "0001130464"
company_name: "BLACK HILLS CORP /SD/"
filed_at: "2023-09-15T23:59:59+00:00"
generated_at: "2026-06-10T15:59:13.573074+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Black Hills completes $450M debt offering; issues 6.150% Notes due 2034

## Summary
- Issued $450M of 6.150% Notes due 2034 at 100% of principal; interest payable semi-annually.
- Net proceeds to repay/retire $525M of 4.250% Notes maturing Nov 30, 2023.
- Notes are unsecured senior obligations ranking equally with existing unsecured debt.
- Maturity date: May 15, 2034; first interest payment due May 15, 2024.
- Remaining proceeds may be used for capital expenditures, acquisitions, or general corporate purposes.

## SEC filing metadata
- accession: 0001104659-23-101196
- form_type: 8-K
- ticker: BKH
- cik: 0001130464
- company_name: BLACK HILLS CORP /SD/
- filed_at: 2023-09-15T23:59:59+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/1130464/000110465923101196/0001104659-23-101196-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1130464/000110465923101196/tm2326174d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-101196
- JSON: https://secwatch.observer/filing/0001104659-23-101196.json
- Plain text: https://secwatch.observer/filing/0001104659-23-101196.txt

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