---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-099727"
form_type: "8-K"
ticker: "BKH"
cik: "0001130464"
company_name: "BLACK HILLS CORP /SD/"
filed_at: "2023-09-11T23:59:59+00:00"
generated_at: "2026-06-10T21:36:25.194674+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Black Hills Corporation issues $450M of 6.150% Notes due 2034

## Summary
- Principal amount $450M, 6.150% Notes due 2034 via underwriting agreement.
- Gross consideration approximately $443.6M after original issue discount and underwriting discounts.
- Settlement scheduled for September 15, 2023, subject to customary closing conditions.
- Notes offered under existing shelf registration statement (Reg. No. 333-272739).

## SEC filing metadata
- accession: 0001104659-23-099727
- form_type: 8-K
- ticker: BKH
- cik: 0001130464
- company_name: BLACK HILLS CORP /SD/
- filed_at: 2023-09-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/0001104659-23-099727-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/tm2322836d5_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-099727
- JSON: https://secwatch.observer/filing/0001104659-23-099727.json
- Plain text: https://secwatch.observer/filing/0001104659-23-099727.txt

## Key facts
- Material Agreements
  BLACK HILLS CORP /SD/ entered into Underwriting Agreement with representatives of the several underwriters valued at $450 million (effective 2023-09-06).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: representatives of the several underwriters
  - Value: $450 million
  - Effective: 2023-09-06
  source text: On September 6, 2023, Black Hills Corporation (the “ Company ” or “ we ”) entered into an Underwriting Agreement by and between the Company and the representatives of the several underwriters named in Schedule A thereto (the “ Underwriting Agreement ”), pursuant to which the Company has agreed to issue and sell and the underwriters have severally agreed to purchase an aggregate principal amount of $450 million of its 6.150% Notes due 2034 (the “ Notes ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/0001104659-23-099727-index.htm

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