0001130464-05-000195 8-K 3 20050509 2.02 9.01 20050510 20050510 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 8-K 34 001-31303 05814707 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 form8k_050905.htm PRESS RELEASE DATED MAY 9, 2005 GRAPHIC 2 ballot.jpg GRAPHIC EX-99 3 ex99_form8k-050905.htm PRESS RELEASE DATED MAY 9, 2005