0001130464-02-000031 10-Q 3 20020630 20020814 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 10-Q 34 001-31303 02734336 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 form10q-2nd_02.txt FORM 10Q 2ND QTR EX-99 3 ex99_1-10q02.txt CEO CERTIFICATION EX-99 4 ex99_2-10q02.txt CFO CERTIFICATION