0001130464-08-000356 8-K 3 20081218 1.01 2.03 7.01 9.01 20081219 20081218 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 8-K 34 001-31303 081258468 625 9TH STREET PO BOX 1400 RAPID CITY SD 57709 6057212343 625 9TH STREET PO BOX 1400 RAPID SD 57709 BLACK HILLS HOLDING CORP 20001222 8-K 1 bhcform8k121808.htm EX-10 2 ex10.htm EX-99 3 ex99.htm