0000930661-03-002083 8-K 7 20030516 5 7 20030521 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 8-K 34 001-31303 03713638 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 d8k.htm FORM 8-K EX-1.1 3 dex11.htm UNDERWRITING AGREEMENT DATED 5/16/2003 EX-4.1 4 dex41.htm FORM OF FIRST SUPPLEMENTAL INDENTURE DATED 5/21/2003 EX-5.1 5 dex51.htm OPINION OF STEVEN J. HELMERS EX-5.2 6 dex52.htm OPINION OF CONNER & WINTERS EX-12.1 7 dex121.htm STATEMENTS REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES EX-25.1 8 dex251.htm FORM T-1