Form 8-K Mallon


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549


Form 8-K


CURRENT REPORT



Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934


April 15, 2003
(Date of earliest event reported)



BLACK HILLS CORPORATION

       South Dakota     001-31303     46-0458824    
(State of Incorporation)     (Commission File No.)     (IRS Employer    
                   (Identification Number)    


625 Ninth Street
P. O. Box 1400
Rapid City, South Dakota 57709
(605) 721-1700


Item 5.  

  Other Events.


  On April 15, 2003 the Company issued a press release announcing an internal investigation regarding trade reporting to energy publications. The investigation was initiated in response to a Request for Information from the United States Commodity Futures Trading Commission.

  The press release is attached as an exhibit to this Form 8-K and incorporated herein by reference.

Item 7.  

Financial Statements and Exhibits.


    (c)    Exhibit:

           99   Press Release dated April 15, 2003 announcing an internal investigation regarding trade reporting to energy publications. The investigation was initiated in response to a Request for Information from the United States Commodity Futures Trading Commission.


SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

          BLACK HILLS CORPORATION


            By: /s/Mark T. Thies
Mark T. Thies
Executive Vice President
and Chief Financial Officer

Date: April 16, 2003


Exhibit Index

      Exhibit
Number
  Description


      99   Press Release dated April 15, 2003 announcing an internal investigation regarding trade reporting to energy publications. The investigation was initiated in response to a Request for Information from the United States Commodity Futures Trading Commission.