UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

___________

 

FORM 8-K

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CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

 

Date of Report (Date of earliest event reported) September 5, 2007

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BLACK HILLS CORPORATION

(Exact name of registrant as specified in its charter)

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South Dakota

(State or other jurisdiction of incorporation)

001-31303

 

46-0458824

(Commission File Number)

 

(IRS Employer Identification No.)

 

 

 

625 Ninth Street, PO Box 1400

Rapid City, South Dakota

(Address of principal executive offices)

57709-1400

(Zip Code)

605.721.1700

(Registrant’s telephone number, including area code)

 

 

 

Not Applicable

(Former name or former address, if changed since last report)

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

 

 

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Item 8.01 Other Events

 

On September 5, 2007, the Registrant issued a press release jointly with Aquila, Inc. announcing that the Iowa Utilities Board approved the proposed acquisition by the Registrant of Aquila’s natural gas utility assets and operations in the State of Iowa.

 

In April 2007, Aquila and the Registrant also filed the requisite state regulatory applications regarding the proposed transaction in Colorado, Kansas and Nebraska which are still pending.

 

The press release is attached as Exhibit 99 to this Form 8-K.

 

Item 9.01  

Financial Statements and Exhibits

 

 

(d)

Exhibits

 

 

99

Press release dated September 5, 2007.

 

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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:  September 5, 2007

 

 

 

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Exhibit Index

 

Exhibit #

99

Press release dated September 5, 2007.

 

 

 

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