8-K current report · filed Aug 17, 2026

BLACK HILLS CORP /SD/ (BKH) 8-K Current Report: August 17, 2026

Item 8.01Item EX-99.1BKH overview

Short answer

BLACK HILLS CORP /SD/ (BKH) filed an 8-K current report with the SEC on August 17, 2026 reporting Item 8.01 (Other Events), Item EX-99.1 (Exhibit EX-99.1). NorthWestern historical financial statements filed under Rule 3-05, supporting Black Hills’ pending merger review.

BLACK HILLS CORP /SD/ 8-K event analysis

AI summary of each reported item and its exhibits

Item 8.01 · Other Events

  • NorthWestern historical financial statements filed under Rule 3-05, supporting Black Hills’ pending merger review
  • Pro forma combined financials assume closing January 1, 2025 for income and June 30, 2026 for balance sheet
  • Pro forma results are illustrative, unaudited and not predictive of the combined company’s future performance
  • Merger remains subject to regulatory approvals, potential delays, termination rights and unanticipated conditions
  • Anticipated synergies may not materialize, while transaction costs and business disruption could exceed expectations

Item EX-99.1 · Exhibit EX-99.1

  • Q2 revenue $392.6M, up from $342.7M, but net income rose to $25.0M from $21.2M
  • Six-month net income fell to $88.5M from $98.2M, with diluted EPS declining to $1.43 from $1.60
  • Capital spending reached $304.8M versus $221.0M, driving negative free-cash-flow pressure and increasing funding needs
  • Long-term debt rose to $3.44B from $3.18B, while June 2026 cash fell to $4.2M from $8.8M
  • Black Hills merger remains targeted for year-end 2026, pending Montana approval and other closing conditions

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