UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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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 30, 2005

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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))

Item 1.01 Entry into a Material Definitive Agreement

On September 30, 2005, the Registrant’s subsidiary, Enserco Energy Inc. (“Enserco”), amended its Amended and Restated Credit Agreement dated as of May 14, 2004, by and among Enserco, Fortis Capital Corp., as Administrative Agent, Documentation Agent and Collateral Agent, BNP Paribas, U.S. Bank National Association and Societe Generale.

The amendment increased the amount of the uncommitted credit facility to $200 million and extended the term of the facility to November 30, 2005. The uncommitted credit facility was originally for $150 million with an expiration of September 30, 2005. The terms and conditions of the Amended and Restated Credit Agreement dated as of May 14, 2004 and the First Amendment to the Amended and Restated Credit Agreement made as of the 30^th day of September, 2004 were set forth in a current report on Form 8-K dated September 30, 2004 filed by the Company with the Securities and Exchange Commission on October 6, 2004 and are incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

The information required by this item is included in Item 1.01.

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: October 3, 2005