0001130464-05-000193 10-Q 6 20050331 20050510 20050510 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 10-Q 34 001-31303 05814287 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 10-Q 1 form10q1stqtr.htm BHC 1ST QTR 10Q EX-10.1 2 creditfacility.htm CREDIT FACILITY MAY 5, 2005 EX-31.1 3 ex31-1_10q31stqtr.htm CEO SECTION 302 SARBANES CERTIFICATION EX-31.2 4 ex31-2_10q1stqtr.htm CFO SECTION 302 SARBANES CERTIFICATION EX-32.1 5 ex32-1_10q1stqtr.htm CEO SECTION 906 SARBANES CERTIFICATION EX-32.2 6 ex32-2_10q1stqtr.htm CFO SECTION 906 SARBANES CERTIFICATION