7001 MT RUSHMORE RD, RAPID CITY, SD
Reports 2025 Third-Quarter Results and Reaffirms 2025 Adjusted Earnings Guidance
News, Securities Holder Rights or Indentures, Legal Opinion
News, Underwriting Agreement
Consolidated Financial Statements for the Three and Six Months Ended June 30, 2025, Companies Face Risks in Merger Completion
Combine in All-Stock Merger to Create a Premier Regional Regulated Electric and Natural Gas Utility Company, Investor Presentation
To Combine in All-Stock Merger to Create a Premier Regional Regulated Electric and Natural Gas Utility Company, Investor Presentation
Reaffirms 2025 Earnings Guidance and Reports 2025 Second-Quarter Results
News, Underwriting Agreement, Legal Opinion
Q3
Q2
Q1
FY 2023
Prospectus Filed Pursuant to Rule 424(b)(2)
Prospectus filed pursuant to Rule 424(b)(5)
Prospectus Filed Pursuant to Rule 425
Definitive Proxy Statement
Additional Proxy Materials
Initial Statement of Beneficial Ownership
Statement of Changes in Beneficial Ownership
Annual Report of Employee Stock Purchase
Free Writing Prospectus
Automatic Shelf Registration Statement