FORM 10Q 3RD QTR 2009

Company

BLACK HILLS CORP /SD/

Filed

August 10, 2009

Period of Report

June 30, 2009

Accession Number

0001130464-09-000208

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 →