FORM 10Q 1ST QTR

Company

BLACK HILLS CORP /SD/

Filed

May 10, 2006

Period of Report

March 31, 2006

Accession Number

0001130464-06-000198

A 10-Q is a quarterly financial report filed after each of the first three quarters of a fiscal year. It includes unaudited financial statements and management commentary. Learn more about 10-Q filings →