0001130464-02-000049 4 1 20021231 20021231 OHLMACHER THOMAS M 0001194294 OFFICER 4 P O BOX 1400 RAPID CITY SD 57709-1400 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 4 34 001-31303 02873773 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 4 1 ohl55.htm FORM 4 12-2002