X0508 5 2023-12-31 0 0 0001130464 BLACK HILLS CORP /SD/ BKH 0001982916 Jacobs Todd J PO BOX 1400 RAPID CITY SD 57709 false true false false SVP - Growth & Strategy false Common Stock 2023-07-12 5 L false 5.964 58.6854 A 13220.496 D Common Stock 2023-08-09 5 L false 5.879 59.5339 A 13226.375 D Common Stock 2023-09-06 5 L false 6.508 53.78 A 13232.883 D Common Stock 2023-10-11 5 L false 6.884 50.8425 A 13239.767 D Common Stock 2023-11-08 5 L false 6.917 50.6 A 13246.684 D Common Stock 2023-12-06 5 L false 6.436 54.3816 A 13253.12 D Common Stock 2023-12-31 5 J false 248.536 0 A 13501.656 D Shares acquired through the Company's Dividend Reinvestment Plan. /s/Amy Koenig 2024-02-13