10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
	EXCHANGE ACT OF 1934
	For the quarterly period ended March 31, 2014
OR
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
	EXCHANGE ACT OF 1934
	For the transition period from __________ to __________.
	Commission File Number 001-31303

Black Hills Corporation
Incorporated in South Dakota	IRS Identification Number 46-0458824
625 Ninth Street
Rapid City, South Dakota 57701
Registrant’s telephone number (605) 721-1700
Former name, former address, and former fiscal year if changed since last report
NONE

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No o

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).

Yes x No o

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company (as defined in Rule 12b-2 of the Exchange Act).

Large accelerated filer x Accelerated filer o

Non-accelerated filer o Smaller reporting company o

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes o No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock as of the latest practicable date.

Class	Outstanding at April 29, 2014
Common stock, $1.00 par value	44,628,586	shares

TABLE OF CONTENTS
		Page
	Glossary of Terms and Abbreviations	3
PART I.	FINANCIAL INFORMATION	5
Item 1.	Financial Statements	5
	Condensed Consolidated Statements of Income (Loss) - unaudited
	Three Months Ended March 31, 2014 and 2013	5
	Condensed Consolidated Statements of Comprehensive Income (Loss) - unaudited
	Three Months Ended March 31, 2014 and 2013	6
	Condensed Consolidated Balance Sheets - unaudited
	March 31, 2014, December 31, 2013 and March 31, 2013	7
	Condensed Consolidated Statements of Cash Flows - unaudited
	Three Months Ended March 31, 2014 and 2013	9
	Notes to Condensed Consolidated Financial Statements - unaudited	10
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	56
Item 4.	Controls and Procedures	58
PART II.	OTHER INFORMATION	59
Item 1.	Legal Proceedings	59
Item 1A.	Risk Factors	59
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	59
Item 4.	Mine Safety Disclosures	59
Item 5.	Other Information	59
Item 6.	Exhibits	60
	Signatures	61
	Index to Exhibits	62

2

GLOSSARY OF TERMS AND ABBREVIATIONS

The following terms and abbreviations appear in the text of this report and have the definitions described below:

AFUDC	Allowance for Funds Used During Construction
AOCI	Accumulated Other Comprehensive Income (Loss)
ASU	Accounting Standards Update issued by the FASB
Bbl	Barrel
BHC	Black Hills Corporation; the Company
Black Hills Electric Generation	Black Hills Electric Generation, LLC, a direct, wholly-owned subsidiary of Black Hills Non-regulated Holdings
Black Hills Energy	The name used to conduct the business of Black Hills Utility Holdings, Inc., and its subsidiaries
Black Hills Non-regulated Holdings	Black Hills Non-regulated Holdings, LLC, a direct, wholly-owned subsidiary of Black Hills Corporation
Black Hills Power	Black Hills Power, Inc., a direct, wholly-owned subsidiary of Black Hills Corporation
Black Hills Utility Holdings	Black Hills Utility Holdings, Inc., a direct, wholly-owned subsidiary of Black Hills Corporation
Black Hills Wyoming	Black Hills Wyoming, LLC, a direct, wholly-owned subsidiary of Black Hills Electric Generation
Bopd	Barrels of oil per day
Btu	British thermal unit
Cheyenne Light	Cheyenne Light, Fuel and Power Company, a direct, wholly-owned subsidiary of Black Hills Corporation
Cheyenne Prairie	Cheyenne Prairie Generating Station currently being constructed in Cheyenne, Wyoming by Cheyenne Light and Black Hills Power. Construction is expected to be completed for this 132 megawatt facility in 2014.
Colorado Electric	Black Hills Colorado Electric Utility Company, LP (doing business as Black Hills Energy), an indirect, wholly-owned subsidiary of Black Hills Utility Holdings
Colorado IPP	Black Hills Colorado IPP, LLC a direct wholly-owned subsidiary of Black Hills Electric Generation
CPCN	Certificate of Public Convenience and Necessity
CPUC	Colorado Public Utilities Commission
CVA	Credit Valuation Adjustment
De-designated interest rate swaps	The $250 million notional amount interest rate swaps that were originally designated as cash flow hedges under accounting for derivatives and hedges but subsequently de-designated in December 2008. These swaps were settled in November 2013.
Dth	Dekatherm. A unit of energy equal to 10 therms or one million British thermal units (MMBtu)
FASB	Financial Accounting Standards Board
Fitch	Fitch Ratings
GAAP	Accounting principles generally accepted in the United States of America
GCA	Gas Cost Adjustment -- adjustments that allow us to pass the prudently-incurred cost of gas and certain services through to customers.
Heating Degree Day	A heating degree day is equivalent to each degree that the average of the high and the low temperatures for a day is below 65 degrees. The colder the climate, the greater the number of heating degree days. Heating degree days are used in the utility industry to measure the relative coldness of weather and to compare relative temperatures between one geographic area and another. Normal degree days are based on the National Weather Service data for selected locations over a 30-year average.

3

IPP	Independent power producer
IRS	United States Internal Revenue Service
Kansas Gas	Black Hills Kansas Gas Utility Company, LLC (doing business as Black Hills Energy), a direct, wholly-owned subsidiary of Black Hills Utility Holdings
KCC	Kansas Corporation Commission
LIBOR	London Interbank Offered Rate
LOE	Lease Operating Expense
Mcf	Thousand cubic feet
Mcfe	Thousand cubic feet equivalent.
MMBtu	Million British thermal units
MMcfd	Millions of cubic feet per day
Moody’s	Moody’s Investors Service, Inc.
MWh	Megawatt-hours
NGL	Natural Gas Liquids (7 Gallons equals 1 Mcfe)
NOL	Net Operating Loss
OTC	Over-the-counter
PPA	Power Purchase Agreement
Revolving Credit Facility	Our $500 million credit facility used to fund working capital needs, letters of credit and other corporate purposes, which matures in 2017.
SDPUC	South Dakota Public Utilities Commission
SEC	U. S. Securities and Exchange Commission
S&P	Standard and Poor’s, a division of The McGraw-Hill Companies, Inc.
WPSC	Wyoming Public Service Commission

4

BLACK HILLS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS)

(unaudited)	Three Months Ended March 31,
	2014			2013
	(in thousands, except per share amounts)
Revenue	$	460,169		$	380,671
Operating expenses:
Utilities -
Fuel, purchased power and cost of natural gas sold	230,468			168,173
Operations and maintenance	71,227			65,690
Non-regulated energy operations and maintenance	22,332			21,329
Depreciation, depletion and amortization	36,083			34,781
Taxes - property, production and severance	10,336			10,380
Other operating expenses	125			472
Total operating expenses	370,571			300,825
Operating income	89,598			79,846
Other income (expense):
Interest charges -
Interest expense incurred (including amortization of debt issuance costs, premiums and discounts and realized settlements on interest rate swaps)	(17,860		)	(23,672		)
Allowance for funds used during construction - borrowed	270			74
Capitalized interest	257			266
Unrealized gain (loss) on interest rate swaps, net	—			7,456
Interest income	390			285
Allowance for funds used during construction - equity	238			200
Other income (expense), net	592			405
Total other income (expense), net	(16,113		)	(14,986		)
Income (loss) before earnings (loss) of unconsolidated subsidiaries and income taxes	73,485			64,860
Equity in earnings (loss) of unconsolidated subsidiaries	(1		)	(86		)
Income tax benefit (expense)	(25,366		)	(21,577		)
Net income (loss) available for common stock	$	48,118		$	43,197
Earnings (loss) per share of common stock:
Earnings (loss) per share, Basic -
Total income (loss) per share, Basic	$	1.09		$	0.98
Earnings (loss) per share, Diluted -
Total income (loss) per share, Diluted	$	1.08		$	0.97
Weighted average common shares outstanding:
Basic	44,330			44,053
Diluted	44,554			44,312
Dividends paid per share of common stock	$	0.39		$	0.38

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these Condensed Consolidated Financial Statements.

5

BLACK HILLS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(unaudited)	Three Months Ended March 31,
	2014			2013
	(in thousands)
Net income (loss) available for common stock	$	48,118		$	43,197
Other comprehensive income (loss), net of tax:
Fair value adjustments on derivatives designated as cash flow hedges (net of tax (expense) benefit of $1,307 and $1,117, respectively)	(2,257		)	(1,661		)
Reclassification adjustments for cash flow hedges settled and included in net income (loss) (net of tax (expense) benefit of $(425) and $(236), respectively)	780			468
Benefit plan liability adjustments - net gain (loss) (net of tax of $2 and $0, respectively)	(2		)	—
Benefit plan liability adjustments - prior service (costs) (net of tax of $(90) and $0, respectively)	164			—
Reclassification adjustments of benefit plan liability - prior service cost (net of tax of $4 and $17, respectively)	(9		)	(46		)
Reclassification adjustments of benefit plan liability - net gain (loss) (net of tax of $(85) and $(192), respectively)	157			503
Other comprehensive income (loss), net of tax	(1,167		)	(736		)
Comprehensive income (loss) available for common stock	$	46,951		$	42,461

See Note 11 for additional disclosures.

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these Condensed Consolidated Financial Statements.

6

BLACK HILLS CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited)	As of
	March 31, 2014			December 31, 2013			March 31, 2013
	(in thousands)
ASSETS
Current assets:
Cash and cash equivalents	$	17,641		$	7,841		$	12,397
Restricted cash and equivalents	2			2			6,846
Accounts receivable, net	203,625			177,573			168,783
Materials, supplies and fuel	66,187			88,478			64,189
Derivative assets, current	1,846			717			1,630
Income tax receivable, net	1,826			1,460			—
Deferred income tax assets, net, current	25,780			18,889			38,196
Regulatory assets, current	62,946			24,451			23,422
Other current assets	24,563			25,877			28,260
Total current assets	404,416			345,288			343,723
Investments	16,916			16,697			16,545
Property, plant and equipment	4,318,194			4,259,445			3,977,704
Less: accumulated depreciation and depletion	(1,298,398		)	(1,269,148		)	(1,210,833		)
Total property, plant and equipment, net	3,019,796			2,990,297			2,766,871
Other assets:
Goodwill	353,396			353,396			353,396
Intangible assets, net	3,342			3,397			3,565
Derivative assets, non-current	—			—			—
Regulatory assets, non-current	138,173			138,197			181,119
Other assets, non-current	28,925			27,906			21,367
Total other assets, non-current	523,836			522,896			559,447
TOTAL ASSETS	$	3,964,964		$	3,875,178		$	3,686,586

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these Condensed Consolidated Financial Statements.

7

BLACK HILLS CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(Continued)

(unaudited)	As of
	March 31, 2014			December 31, 2013			March 31, 2013
	(in thousands, except share amounts)
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	149,681		$	130,416		$	82,437
Accrued liabilities	145,973			151,277			140,230
Derivative liabilities, current	3,498			3,474			89,112
Accrued income tax, net	—			—			1,157
Regulatory liabilities, current	583			10,727			19,020
Notes payable	100,000			82,500			245,000
Current maturities of long-term debt	—			—			104,637
Total current liabilities	399,735			378,394			681,593
Long-term debt, net of current maturities	1,396,949			1,396,948			936,477
Deferred credits and other liabilities:
Deferred income tax liabilities, net, non-current	466,856			432,287			367,502
Derivative liabilities, non-current	4,805			5,614			15,237
Regulatory liabilities, non-current	116,793			109,429			126,573
Benefit plan liabilities	113,324			111,479			172,353
Other deferred credits and other liabilities	129,083			133,279			125,958
Total deferred credits and other liabilities	830,861			792,088			807,623
Commitments and contingencies (See Notes 7, 8, 13 and 14)
Stockholders’ equity:
Common stock $1 par value; 100,000,000 shares authorized; issued 44,666,953; 44,550,239; and 44,482,304 shares, respectively	44,667			44,550			44,482
Additional paid-in capital	742,016			742,344			735,000
Retained earnings	570,963			540,244			519,184
Treasury stock, at cost – 37,038; 50,877; and 41,606 shares, respectively	(1,638		)	(1,968		)	(1,549		)
Accumulated other comprehensive income (loss)	(18,589		)	(17,422		)	(36,224		)
Total stockholders’ equity	1,337,419			1,307,748			1,260,893
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	3,964,964		$	3,875,178		$	3,686,586

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these Condensed Consolidated Financial Statements.

8

BLACK HILLS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)	Three Months Ended March 31,
	2014			2013
Operating activities:	(in thousands)
Net income (loss) available for common stock	$	48,118		$	43,197
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	36,083			34,781
Deferred financing cost amortization	568			1,095
Stock compensation	3,716			3,778
Unrealized (gain) loss on interest rate swaps, net	—			(7,456		)
Deferred income taxes	25,953			20,541
Employee benefit plans	3,703			5,548
Other adjustments, net	5,190			7,087
Changes in certain operating assets and liabilities:
Materials, supplies and fuel	22,291			18,519
Accounts receivable, unbilled revenues and other operating assets	(78,576		)	(5,323		)
Accounts payable and other current liabilities	29,074			(13,637		)
Other operating activities, net	1,978			1,102
Net cash provided by operating activities	98,098			109,232
Investing activities:
Property, plant and equipment additions	(83,609		)	(63,939		)
Other investing activities	(3,220		)	1,030
Net cash provided by (used in) investing activities	(86,829		)	(62,909		)
Financing activities:
Dividends paid on common stock	(17,399		)	(16,882		)
Common stock issued	881			2,426
Short-term borrowings - issuances	86,800			78,500
Short-term borrowings - repayments	(69,300		)	(110,500		)
Long-term debt - repayments	—			(1,737		)
Other financing activities	(2,451		)	(1,195		)
Net cash provided by (used in) financing activities	(1,469		)	(49,388		)
Net change in cash and cash equivalents	9,800			(3,065		)
Cash and cash equivalents, beginning of period	7,841			15,462
Cash and cash equivalents, end of period	$	17,641		$	12,397

See Note 12 for supplemental disclosure of cash flow information.

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these Condensed Consolidated Financial Statements.

9

BLACK HILLS CORPORATION

Notes to Condensed Consolidated Financial Statements

(unaudited)

(Reference is made to Notes to Consolidated Financial Statements

included in the Company’s 2013 Annual Report on Form 10-K)

(1)    MANAGEMENT’S STATEMENT

The unaudited Condensed Consolidated Financial Statements included herein have been prepared by Black Hills Corporation (together with our subsidiaries the “Company,” “us,” “we,” or “our”), pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations; however, we believe that the footnotes adequately disclose the information presented. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and the notes thereto included in our 2013 Annual Report on Form 10-K filed with the SEC.

We conduct our operations through the following reportable segments: Electric Utilities, Gas Utilities, Power Generation, Coal Mining and Oil and Gas. Our reportable segments are based on our method of internal reporting, which generally segregates the strategic business groups due to differences in products, services and regulation. All of our operations and assets are located within the United States.

Accounting methods historically employed require certain estimates as of interim dates. The information furnished in the accompanying Condensed Consolidated Financial Statements reflects all adjustments, including accruals, which are, in the opinion of management, necessary for a fair presentation of the March 31, 2014, December 31, 2013, and March 31, 2013 financial information and are of a normal recurring nature. Certain industries in which we operate are highly seasonal, and revenue from, and certain expenses for, such operations may fluctuate significantly among quarterly periods. Demand for electricity and natural gas is sensitive to seasonal cooling, heating and industrial load requirements, as well as changes in market price. In particular, the normal peak usage season for electric utilities is June through August while the normal peak usage season for gas utilities is November through March. Significant earnings variances can be expected between the Gas Utilities segment’s peak and off-peak seasons. Due to this seasonal nature, our results of operations for the three months ended March 31, 2014 and March 31, 2013, and our financial condition as of March 31, 2014, December 31, 2013, and March 31, 2013, are not necessarily indicative of the results of operations and financial condition to be expected as of or for any other period. All earnings per share amounts discussed refer to diluted earnings per share unless otherwise noted.

Recently Issued and Adopted Accounting Standards

We have implemented all new accounting pronouncements that are in effect and may impact our financial statements and do not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on our financial position, results of operations, or cash flows.

10

(2)    BUSINESS SEGMENT INFORMATION

Segment information and Corporate activities included in the accompanying Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	178,095	$	4,007		$	14,575
Gas	259,337		—			24,698
Non-regulated Energy:
Power Generation	1,269		21,079			8,073
Coal Mining	6,618		8,880			2,464
Oil and Gas	14,850		—			(2,022		)
Corporate activities	—		—			330
Inter-company eliminations	—		(33,966		)	—
Total	$	460,169	$	—		$	48,118

Three Months Ended March 31, 2013	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	158,483	$	4,147		$	12,356
Gas	199,812		—			18,483
Non-regulated Energy:
Power Generation	1,022		19,338			5,644
Coal Mining	6,010		7,573			1,065
Oil and Gas	15,344		—			(53		)
Corporate activities (a)	—		—			5,699
Inter-company eliminations	—		(31,058		)	3
Total	$	380,671	$	—		$	43,197

__________

(a) Net income (loss) includes a $4.8 million after-tax non-cash mark-to-market gain for the three months ended March 31, 2013 on certain interest rate swaps.

11

Segment information and Corporate balances included in the accompanying Condensed Consolidated Balance Sheets were as follows (in thousands):

Total Assets (net of inter-company eliminations) as of:	March 31, 2014		December 31, 2013		March 31, 2013
Utilities:
Electric (a)	$	2,572,616	$	2,525,947	$	2,367,014
Gas	842,660		805,617		752,468
Non-regulated Energy:
Power Generation (a)	90,643		95,692		115,708
Coal Mining	74,523		78,825		82,839
Oil and Gas	295,083		288,366		255,786
Corporate activities	89,439		80,731		112,771
Total assets	$	3,964,964	$	3,875,178	$	3,686,586

__________

(a) The PPA under which Black Hills Colorado IPP provides generation to support Colorado Electric customers from the Pueblo Airport Generation Station is accounted for as a capital lease. As such, assets owned by our Power Generation segment are recorded at Colorado Electric under accounting for a capital lease.

(3)    ACCOUNTS RECEIVABLE

Following is a summary of Accounts receivable, net included in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2014	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	53,733	$	20,063	$	(690	)	$	73,106
Gas Utilities	77,982		35,791		(814		)	112,959
Power Generation	1,340		—		—			1,340
Coal Mining	2,616		—		—			2,616
Oil and Gas	10,920		—		(13		)	10,907
Corporate	2,697		—		—			2,697
Total	$	149,288	$	55,854	$	(1,517	)	$	203,625

	Accounts		Unbilled		Less Allowance for			Accounts
December 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	52,437	$	23,823	$	(666	)	$	75,594
Gas Utilities	49,162		41,195		(558		)	89,799
Power Generation	1,722		—		—			1,722
Coal Mining	1,711		—		—			1,711
Oil and Gas	8,156		—		(13		)	8,143
Corporate	604		—		—			604
Total	$	113,792	$	65,018	$	(1,237	)	$	177,573

12

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	47,896	$	21,591	$	(623	)	$	68,864
Gas Utilities	59,024		28,439		(751		)	86,712
Power Generation	3		—		—			3
Coal Mining	1,857		—		—			1,857
Oil and Gas	10,340		—		(19		)	10,321
Corporate	1,026		—		—			1,026
Total	$	120,146	$	50,030	$	(1,393	)	$	168,783

(4)    REGULATORY ACCOUNTING

We had the following regulatory assets and liabilities (in thousands):

	Maximum	As of		As of		As of
	Amortization (in years)	March 31, 2014		December 31, 2013		March 31, 2013
Regulatory assets
Deferred energy and fuel cost adjustments - current (a)	1	$	23,935	$	16,775	$	16,815
Deferred gas cost adjustments and gas price derivatives (a)	7	42,925		12,366		8,264
AFUDC (b)	45	12,349		12,315		12,335
Employee benefit plans (c)	13	65,833		67,059		115,564
Environmental (a)	subject to approval	1,317		1,800		1,793
Asset retirement obligations (a)	44	3,271		3,266		3,252
Bond issue cost (a)	24	3,383		3,419		3,526
Renewable energy standard adjustment (a)	5	16,088		14,186		16,325
Flow through accounting (c)	35	21,837		20,916		17,308
Other regulatory assets (a)	15	10,181		10,546		9,359
		$	201,119	$	162,648	$	204,541
Regulatory liabilities
Deferred energy and gas costs (a)	1	$	6,485	$	11,708	$	21,463
Employee benefit plans (c)	13	34,355		34,431		60,214
Cost of removal (a)	44	67,640		64,970		56,517
Other regulatory liabilities (c)	25	8,896		9,047		7,399
		$	117,376	$	120,156	$	145,593

__________

(a) Recovery of costs, but not allowed a rate of return.

(b) In addition to recovery of costs, we are allowed a rate of return.

(c) In addition to recovery or repayment of costs, we are allowed a return on a portion of this amount or a reduction in rate base, respectively.     

13

(5)    MATERIALS, SUPPLIES AND FUEL

The following amounts by major classification are included in Materials, supplies and fuel in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014		December 31, 2013		March 31, 2013
Materials and supplies	$	50,727	$	50,196	$	50,401
Fuel - Electric Utilities	7,218		6,213		8,445
Natural gas in storage held for distribution	8,242		32,069		5,343
Total materials, supplies and fuel	$	66,187	$	88,478	$	64,189

(6)    EARNINGS PER SHARE

A reconciliation of share amounts used to compute Earnings (loss) per share in the accompanying Condensed Consolidated Statements of Income (loss) is as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Net Income (loss) available for common stock	$	48,118	$	43,197
Weighted average shares - basic	44,330		44,053
Dilutive effect of:
Equity compensation	224		259
Weighted average shares - diluted	44,554		44,312

The following outstanding securities were not included in the computation of diluted earnings per share as their effect would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2014	2013
Equity compensation	46	40
Anti-dilutive shares	46	40

(7)    NOTES PAYABLE

We had the following notes payable outstanding in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit
Revolving Credit Facility	$	100,000	$	27,700	$	82,500	$	22,100	$	95,000	$	36,500
Term Loan due June 2013	—		—		—		—		150,000		—
Total	$	100,000	$	27,700	$	82,500	$	22,100	$	245,000	$	36,500

The term loan for $150 million was repaid on June 21, 2013.

14

Debt Covenants

Our Revolving Credit Facility and our new Term Loan require compliance with the following financial covenant at the end of each quarter:

	As of March 31, 2014	Covenant Requirement
Recourse Leverage Ratio	55%	Less than	65	%

As of March 31, 2014, we were in compliance with this covenant.

(8)    RISK MANAGEMENT ACTIVITIES

Our activities in the regulated and non-regulated energy sectors expose us to a number of risks in the normal operation of our businesses. Depending on the activity, we are exposed to varying degrees of market risk and credit risk. To manage and mitigate these identified risks, we have adopted the Black Hills Corporation Risk Policies and Procedures as discussed in our 2013 Annual Report on Form 10-K.

Market Risk

Market risk is the potential loss that might occur as a result of an adverse change in market price or rate. We are exposed to the following market risks including, but not limited to:

• Commodity price risk associated with our natural long position in crude oil and natural gas reserves and production; and our fuel procurement for certain of our gas-fired generation assets; and

• Interest rate risk associated with our variable rate debt.

Credit Risk

Credit risk is the risk of financial loss resulting from non-performance of contractual obligations by a counterparty.

For production and generation activities, we attempt to mitigate our credit exposure by conducting business primarily with high credit quality entities, setting tenor and credit limits commensurate with counterparty financial strength, obtaining master netting agreements, and mitigating credit exposure with less creditworthy counterparties through parental guarantees, prepayments, letters of credit, and other security agreements.

We perform ongoing credit evaluations of our customers and adjust credit limits based upon payment history and the customer’s current creditworthiness, as determined by review of their current credit information. We maintain a provision for estimated credit losses based upon historical experience and any specific customer collection issue that is identified.

As ofMarch 31, 2014, our credit exposure included an $0.8 million exposure to a non-investment grade energy marketing company. The remainder of our credit exposure was concentrated primarily among retail utility customers, investment grade rated companies, cooperative utilities and federal agencies. Our derivative and hedging activities recorded in the accompanying Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Income (Loss) and Condensed Consolidated Statements of Comprehensive Income (Loss) are detailed below and in Note 9.

15

Oil and Gas

We produce natural gas and crude oil through our exploration and production activities. Our natural long positions, or unhedged open positions, result in commodity price risk and variability to our cash flows.

To mitigate commodity price risk and preserve cash flows, we primarily use over-the-counter swaps, exchange traded futures and related options to hedge portions of our crude oil and natural gas production. We elect hedge accounting on these instruments. These transactions were designated at inception as cash flow hedges, documented under accounting standards for derivatives and hedging, and initially met prospective effectiveness testing. Effectiveness of our hedging position is evaluated at least quarterly.

The derivatives were marked to fair value and were recorded as Derivative assets or Derivative liabilities on the accompanying Condensed Consolidated Balance Sheets. The effective portion of the gain or loss on these derivatives for which we have elected cash flow hedge accounting is reported in AOCI in the accompanying Condensed Consolidated Balance Sheets and the ineffective portion, if any, is reported in Revenue in the accompanying Condensed Consolidated Statements of Income (Loss).

The contract or notional amounts, terms of our commodity derivatives, and the derivative balances for our Oil and Gas segment reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps
Notional (a)	442,500		8,296,250		412,500		7,082,500		522,000		10,633,000
Maximum terms in months (b)	1		1		3		1		9		6
Derivative assets, current	$	—	$	—	$	55	$	—	$	821	$	287
Derivative assets, non-current	$	—	$	—	$	—	$	—	$	—	$	—
Derivative liabilities, current	$	—	$	—	$	—	$	—	$	250	$	1,188
Derivative liabilities, non-current	$	—	$	—	$	—	$	—	$	—	$	—

__________

(a) Crude oil in Bbls, natural gas in MMBtus.

(b) Refers to the term of the derivative instrument. Assets and liabilities are classified as current/non-current based on the term of the hedged transaction and the corresponding settlement of the derivative instrument.

Based on market prices at March 31, 2014, a $3.2 million loss would be realized, reported in pre-tax earnings, and reclassified from AOCI during the next 12 months. Estimated and actual realized gains or losses will change during future periods as market prices fluctuate.

Utilities

The operations of our utilities, including natural gas sold by our Gas Utilities and natural gas used for Electric Utility generation plants or those plants under power purchase agreements where our Electric Utilities must provide the generation fuel (tolling agreements), expose our utility customers to volatility in natural gas prices. Therefore, as allowed or required by state utility commissions, we have entered into commission-approved hedging programs utilizing natural gas futures, options and basis swaps to reduce our customers’ underlying exposure to these fluctuations. These transactions are considered derivatives, and in accordance with accounting standards for derivatives and hedging, mark-to-market adjustments are recorded as Derivative assets or Derivative liabilities on the accompanying Condensed Consolidated Balance Sheets, net of balance sheet offsetting as permitted by GAAP. Unrealized and realized gains and losses, as well as option premiums and commissions on these transactions are recorded as Regulatory assets or Regulatory liabilities in the accompanying Condensed Consolidated Balance Sheets in accordance with state commission guidelines. Accordingly, the hedging activity is recognized in the Condensed Consolidated Statements of Income (Loss) or the Condensed Consolidated Statements of Comprehensive Income (Loss) when the related costs are recovered through our rates.

16

The contract or notional amounts and terms of the natural gas derivative commodity instruments held at our Utilities were as follows, as of:

	March 31, 2014		December 31, 2013		March 31, 2013
	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)
Natural gas futures purchased	16,140,000	80	17,930,000	84	13,180,000	80
Natural gas options purchased	1,320,000	12	3,890,000	8	440,000	5
Natural gas basis swaps purchased	14,575,000	69	14,785,000	60	11,350,000	69

We had the following derivative balances related to the hedges in our Utilities reflected in our Condensed Consolidated Balance Sheets as of (in thousands):

	March 31, 2014		December 31, 2013		March 31, 2013
Derivative assets, current	$	1,846	$	662	$	522
Derivative assets, non-current	$	—	$	—	$	—
Derivative liabilities, non-current	$	—	$	—	$	—
Net unrealized (gain) loss included in Regulatory assets or Regulatory liabilities	$	4,420	$	7,567	$	4,315

Financing Activities

We entered into floating-to-fixed interest rate swap agreements to reduce our exposure to interest rate fluctuations associated with our floating rate debt obligations. The contract or notional amounts, terms of our interest rate swaps and the interest rate swaps balances reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014			December 31, 2013			March 31, 2013
	Interest Rate Swaps (a)			Interest Rate Swaps (a)			Interest Rate Swaps (b)			De-designated Interest Rate Swaps (c)
Notional	$	75,000		$	75,000		$	150,000		$	250,000
Weighted average fixed interest rate	4.97		%	4.97		%	5.04		%	5.67		%
Maximum terms in years	2.75			3.00			3.75			0.75
Derivative liabilities, current	$	3,498		$	3,474		$	6,982		$	80,692
Derivative liabilities, non-current	$	4,805		$	5,614		$	15,237		$	—

__________

(a) These swaps are designated to borrowings on our Revolving Credit Facility, and are priced using three-month LIBOR, matching the floating portion of the related swaps.

(b) At March 31, 2013, $75 million of these interest rate swaps were designated to borrowings on our Revolving Credit Facility and $75 million were designated to borrowings on our project financing debt at Black Hills Wyoming. These swaps are priced using three-month LIBOR, matching the floating portion of the related debt. The portion of the swaps that were designated to Black Hills Wyoming were settled during the fourth quarter of 2013 upon repayment of the Black Hills Wyoming project financing.

(c) These swaps were settled during the fourth quarter of 2013.

Based on March 31, 2014, market interest rates and balances related to our interest rate swaps, a loss of approximately$3.5 millionwould be realized, reported in pre-tax earnings and reclassified from AOCI during the next 12 months.Estimated and actual realized gains or losses will change during future periods as market interest rates change.

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Cash Flow Hedges

The impacts of cash flow hedges on our Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(91	)	Interest expense	$	(894	)		$	—
Commodity derivatives	(3,473		)	Revenue	(311		)		—
Total	$	(3,564	)		$	(1,205	)		$	—

Three Months Ended March 31, 2013
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(19	)	Interest expense	$	(1,796	)		$	—
Commodity derivatives	(2,759		)	Revenue	1,092				—
Total	$	(2,778	)		$	(704	)		$	—

(9)    FAIR VALUE MEASUREMENTS

Derivative Financial Instruments

The accounting guidance for fair value measurements requires certain disclosures about assets and liabilities measured at fair value. This guidance establishes a hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement within the fair value hierarchy levels. We record transfers, if necessary, between levels at the end of the reporting period for all of our financial instruments. For additional information see Notes 1, 8 and 9 to the Consolidated Financial Statements included in our 2013 Annual Report on Form 10-K filed with the SEC.

Transfers into Level 3, if any, occur when significant inputs used to value the derivative instruments become less observable such as a significant decrease in the frequency and volume in which the instrument is traded, negatively impacting the availability of observable pricing inputs. Transfers out of Level 3, if any, occur when the significant inputs become more observable, such as when the time between the valuation date and the delivery date of a transaction becomes shorter, positively impacting the availability of observable pricing inputs.

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Valuation Methodologies for Derivatives

Oil and Gas Segment:

• The commodity option contracts for our Oil and Gas segment are valued using the market approach and can include calls and puts. Fair value was derived using quoted prices from third-party brokers for similar instruments as to quantity and timing. The prices are then validated through third-party sources and therefore support Level 2 disclosure.

• The commodity basis swaps for our Oil and Gas segment are valued using the market approach with the instrument’s current forward price strip hedged for the same quantity and date and discounted based on the three-month LIBOR. We utilize observable inputs which support a Level 2 disclosure.

Utilities Segments:

• The commodity contracts for our Utilities Segments, valued using the market approach, include exchange-traded futures, options and basis swaps (Level 2) and OTC basis swaps (Level 3) for natural gas contracts. For Level 2 assets and liabilities, fair value was derived using broker quotes validated by the Chicago Mercantile Exchange pricing for similar instruments. For Level 3 assets and liabilities, fair value was derived using average price quotes from the OTC contract broker and an independent third-party market participant because these instruments are not traded on an exchange.

Corporate Activities:

• The interest rate swaps are valued using the market approach. We establish fair value by obtaining price quotes directly from the counterparty which are based on the floating three-month LIBOR curve for the term of the contract. The fair value obtained from the counterparty is then validated by utilizing a nationally recognized service that obtains observable inputs to compute fair value for the same instrument. In addition, the fair value for the interest rate swap derivatives includes a CVA component. The CVA considers the fair value of the interest rate swap and the probability of default based on the life of the contract. For the probability of a default component, we utilize observable inputs supporting a Level 2 disclosure by using our credit default spread, if available, or a generic credit default spread curve that takes into account our credit ratings.

Recurring Fair Value Measurements

There have been no significant transfers between Level 1 and Level 2 derivative balances. Amounts included in cash collateral and counterparty netting in the following tables represent the impact of legally enforceable master netting agreements that allow us to settle positive and negative positions, netting of asset and liability positions permitted in accordance with accounting standards for offsetting as well as cash collateral posted with the same counterparties.

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The following tables set forth by level within the fair value hierarchy our gross assets and gross liabilities and related offsetting as permitted by GAAP that were accounted for at fair value on a recurring basis for derivative instruments. A discussion of fair value of financial instruments is included in Note 10:

	As of March 31, 2014
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		7		—		(7		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		490		—		(490		)	—
Commodity derivatives — Utilities	—		3,226		—		(1,380		)	1,846
Total	$	—	$	3,723	$	—	$	(1,877	)	$	1,846
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,983		—		(1,983		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		2,114		—		(2,114		)	—
Commodity derivatives — Utilities	—		6,919		—		(6,919		)	—
Interest rate swaps	—		8,303		—		—			8,303
Total	$	—	$	19,319	$	—	$	(11,016	)	$	8,303

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	As of December 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		130		—		(75		)	55
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		815		—		(815		)	—
Commodity derivatives —Utilities	—		3,030		—		(2,368		)	662
Total	$	—	$	3,975	$	—	$	(3,258	)	$	717
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,229		—		(1,229		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		531		—		(531		)	—
Commodity derivatives — Utilities	—		9,100		—		(9,100		)	—
Interest rate swaps	—		9,088		—		—			9,088
Total	$	—	$	19,948	$	—	$	(10,860	)	$	9,088

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	As of March 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	71	$	—	$	(11	)	$	60
Basis Swaps -- Oil	—		836		—		(75		)	761
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		435		—		(148		)	287
Commodity derivatives — Utilities	—		1,897		—		(1,375		)	522
Total	$	—	$	3,239	$	—	$	(1,609	)	$	1,630
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	396	$	—	$	(204	)	$	192
Basis Swaps -- Oil	—		670		—		(612		)	58
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		3,216		—		(2,028		)	1,188
Commodity derivatives — Utilities	—		5,862		—		(5,862		)	—
Interest rate swaps	—		108,871		—		(5,960		)	102,911
Total	$	—	$	119,015	$	—	$	(14,666	)	$	104,349

Fair Value Measures by Balance Sheet Classification

As required by accounting standards for derivatives and hedges, fair values within the following tables are presented on a gross basis reflecting the netting of asset and liability positions permitted in accordance with accounting standards for offsetting and under terms of our master netting agreements and the impact of legally enforceable master netting agreements that allow us to settle positive and negative positions; however, the amounts do not include net cash collateral on deposit in margin accounts at March 31, 2014, December 31, 2013, and March 31, 2013, to collateralize certain financial instruments, which are included in Derivative assets and/or Derivative liabilities. Therefore, the balances are not indicative of either our actual credit exposure or net economic exposure. Additionally, the amounts below will not agree with the amounts presented on our Condensed Consolidated Balance Sheets, nor will they correspond to the fair value measurements presented in Note 8.

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The following tables present the fair value and balance sheet classification of our derivative instruments (in thousands):

As of March 31, 2014
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	30	$	—
Commodity derivatives	Derivative assets — non-current	466		—
Commodity derivatives	Derivative liabilities — current	—		3,187
Commodity derivatives	Derivative liabilities — non-current	—		910
Interest rate swaps	Derivative liabilities — current	—		3,498
Interest rate swaps	Derivative liabilities — non-current	—		4,805
Total derivatives designated as hedges		$	496	$	12,400
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	1,846	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		5,539
Total derivatives not designated as hedges		$	1,846	$	5,539

As of December 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	248	$	—
Commodity derivatives	Derivative assets — non-current	698		—
Commodity derivatives	Derivative liabilities — current	—		1,541
Commodity derivatives	Derivative liabilities — non-current	—		219
Interest rate swaps	Derivative liabilities — current	—		3,474
Interest rate swaps	Derivative liabilities — non-current	—		5,614
Total derivatives designated as hedges		$	946	$	10,848
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	662	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		6,732
Total derivatives not designated as hedges		$	662	$	6,732

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As of March 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	832	$	—
Commodity derivatives	Derivative assets — non-current	206		—
Commodity derivatives	Derivative liabilities — current	—		3,110
Commodity derivatives	Derivative liabilities — non-current	—		1,114
Interest rate swaps	Derivative liabilities — current	—		6,982
Interest rate swaps	Derivative liabilities — non-current	—		15,237
Total derivatives designated as hedges		$	1,038	$	26,443
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	2,201	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		58
Commodity derivatives	Derivative liabilities — non-current	—		5,862
Interest rate swaps	Derivative liabilities — current	—		86,652
Interest rate swaps	Derivative liabilities — non-current	—		—
Total derivatives not designated as hedges		$	2,201	$	92,572

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(10)    FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values of our financial instruments, excluding derivatives which are presented in Note 9, were as follows (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cash and cash equivalents (a)	$	17,641	$	17,641	$	7,841	$	7,841	$	12,397	$	12,397
Restricted cash and equivalents (a)	$	2	$	2	$	2	$	2	$	6,846	$	6,846
Notes payable (a)	$	100,000	$	100,000	$	82,500	$	82,500	$	245,000	$	245,000
Long-term debt, including current maturities (b)	$	1,396,949	$	1,541,727	$	1,396,948	$	1,491,422	$	1,041,114	$	1,208,909

__________

(a) Carrying value approximates fair value due to either the short-term length of maturity or variable interest rates that approximate prevailing market rates, and therefore is classified in Level 1 in the fair value hierarchy.

(b) Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy.

(11) OTHER COMPREHENSIVE INCOME (LOSS)

The components of the reclassification adjustments, net of tax, included in Other Comprehensive Income (Loss) for the periods were as follows (in thousands):

	Location on the Condensed Consolidated Statements of Income (Loss)	Amount Reclassified from AOCI
		Three Months Ended
		March 31, 2014			March 31, 2013
Gains (losses) on cash flow hedges:
Interest rate swaps	Interest expense	$	894		$	1,796
Commodity contracts	Revenue	311			(1,092		)
		1,205			704
Income tax	Income tax benefit (expense)	(425		)	(236		)
Reclassification adjustments related to cash flow hedges, net of tax		$	780		$	468
Amortization of defined benefit plans:
Prior service cost	Utilities - Operations and maintenance	$	(25	)	$	(31	)
	Non-regulated energy operations and maintenance	12			(32		)
Actuarial gain (loss)	Utilities - Operations and maintenance	157			421
	Non-regulated energy operations and maintenance	85			274
		229			632
Income tax	Income tax benefit (expense)	(81		)	(175		)
Reclassification adjustments related to defined benefit plans, net of tax		$	148		$	457

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Balances by classification included within Accumulated other comprehensive income (loss) on the accompanying Condensed Consolidated Balance Sheets are as follows (in thousands):

	Derivatives Designated as Cash Flow Hedges			Employee Benefit Plans			Total
Balance as of December 31, 2012	$	(15,713	)	$	(19,775	)	$	(35,488	)
Other comprehensive income (loss), net of tax	(1,193		)	457			(736		)
Balance as of March 31, 2013	$	(16,906	)	$	(19,318	)	$	(36,224	)
Balance as of December 31, 2013	$	(7,133	)	$	(10,289	)	$	(17,422	)
Other comprehensive income (loss), net of tax	(1,478		)	311			(1,167		)
Balance as of March 31, 2014	$	(8,611	)	$	(9,978	)	$	(18,589	)

(12)    SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION

Supplemental disclosures of cash flow for the three months ended are as follows (in thousands):

	Three Months Ended
	March 31, 2014			March 31, 2013
Non-cash investing and financing activities from continuing operations—
Property, plant and equipment acquired with accrued liabilities	$	40,939		$	31,780
Increase (decrease) in capitalized assets associated with asset retirement obligations	$	(2,785	)	$	—
Cash (paid) refunded during the period for continuing operations—
Interest (net of amounts capitalized)	$	(11,452	)	$	(12,768	)
Income taxes, net	$	4		$	(4,656	)

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(13)    EMPLOYEE BENEFIT PLANS

Defined Benefit Pension Plans

The components of net periodic benefit cost for the Defined Benefit Pension Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	1,362		$	1,608
Interest cost	3,963			3,825
Expected return on plan assets	(4,516		)	(4,654		)
Prior service cost	16			16
Net loss (gain)	1,201			3,062
Net periodic benefit cost	$	2,026		$	3,857

Non-pension Defined Benefit Postretirement Healthcare Plans

The components of net periodic benefit cost for the Non-pension Defined Benefit Postretirement Healthcare Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	425		$	419
Interest cost	479			417
Expected return on plan assets	(21		)	(20		)
Prior service cost (benefit)	(107		)	(125		)
Net loss (gain)	40			121
Net periodic benefit cost	$	816		$	812

Supplemental Non-qualified Defined Benefit and Defined Contribution Plans

The components of net periodic benefit cost for the Supplemental Non-qualified Defined Benefit and Defined Contribution Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Service cost	$	374	$	348
Interest cost	362		332
Prior service cost	1		1
Net loss (gain)	124		198
Net periodic benefit cost	$	861	$	879

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Contributions

We anticipate that we will make contributions to the benefit plans during 2014 and 2015. Contributions to the Defined Benefit Pension Plans are cash contributions made directly to the Pension Plan Trust accounts. Contributions to the Healthcare and Supplemental Plan are made in the form of benefit payments. Contributions and anticipated contributions are as follows (in thousands):

	Contributions Made		Additional
	Three Months Ended March 31, 2014		Contributions Anticipated for 2014		Contributions Anticipated for 2015
Defined Benefit Pension Plans	$	—	$	—	$	2,806
Non-pension Defined Benefit Postretirement Healthcare Plans	$	956	$	2,868	$	3,822
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans	$	373	$	1,118	$	1,494

(14)    COMMITMENTS AND CONTINGENCIES

Commitments and Contingencies

There have been no significant changes to commitments and contingencies from those previously disclosed in Note 18 of our Notes to the Consolidated Financial Statements in our 2013 Annual Report on Form 10-K except for those described below.

Natural Gas Delivery Agreement

In 2012, we entered into a ten-year gas gathering and processing contract for natural gas production from our properties in the Piceance Basin in Colorado, under which we pay a gathering fee per Mcf. The contract requires us to deliver a minimum of 20,000 Mcf per day. This agreement became effective in first quarter of 2014 upon completion of the processing infrastructure capable of handling the committed volumes. We believe that our reserves dedicated to the gathering system, and the projected volumes are adequate to satisfy our delivery commitments under this agreement.

Other Commitments

Construction of Cheyenne Prairie, a 132 MW natural gas-fired electric generating facility jointly owned by Cheyenne Light and Black Hills Power is expected to cost approximately$222 million. Construction is expected to be completed by September 30, 2014. As of March 31, 2014, committed contracts for equipment purchases and for construction were 100% and 83% complete, respectively.

Oil Creek Fire

On June 29, 2012, a forest and grassland fire occurred in the western Black Hills of Wyoming. A state fire investigator concluded that the fire was caused by the failure of a transmission structure owned, operated and maintained by Black Hills Power. On April 16, 2013, a lawsuit was filed in the United States District Court for the District of Wyoming, which forty-seven plaintiffs have now joined, asserting claims for damages against Black Hills Power. The claims include allegations of negligence, negligence per se, common law nuisance, and trespass. Although not currently included in the lawsuit, Black Hills Power also received written damage claims from an additional landowner and from the State of Wyoming. Altogether the claims seek recovery for fire suppression, reclamation and rehabilitation costs, damage to fencing and other personal property, alleged injury to timber, grass or hay, livestock and related operations, and diminished value of real estate, for a current total amount of $16 million. In addition to claims for these compensatory damages, the lawsuit seeks recovery of punitive damages. Our investigation of the cause and origin of the fire is ongoing. We have denied and will vigorously defend all claims arising out of the fire, pending the completion of our investigation. We cannot predict the outcome of our investigation, the viability of alleged claims or the outcome of the litigation.

28

Civil litigation of this kind, however, is likely to lead to settlement negotiations, including negotiations prompted by pre-trial civil court procedures. We believe such negotiations would effect a settlement of all claims. Regardless of whether the litigation is determined at trial or through settlement, we expect to incur significant investigation, legal and expert services expenses associated with the litigation. In order to limit our exposure to losses due to civil liability claims, and related litigation expense, we maintain insurance coverage above a $1.0 million deductible. We expect this coverage to limit our exposure, and we will pursue recoveries to the maximum extent available under the policies. Based upon information currently available, we believe that a loss associated with settlement of pending claims is probable. Accordingly, as of March 31, 2014, we recorded a loss contingency liability related to these claims, and we recorded a receivable for costs we believe are reimbursable and probable of recovery under our insurance coverage. Both of these entries reflect our reasonable estimate of probable future litigation expense and settlement costs; we did not base these contingencies on any determination that it is probable we would be found liable for these claims were they to be litigated.

Given the uncertainty of litigation, however, a loss related to the fire, the litigation and related claims in excess of the loss we have determined to be probable is reasonably possible. However, we cannot reasonably estimate the amount of such possible loss because our investigation is ongoing, damage claims are currently incomplete or undocumented, and there are significant factual and legal issues to be resolved. Further claims may be presented by these and other parties. Based upon information currently available, however, management does not expect the outcome of the claims to have a material adverse effect upon our consolidated financial condition, results of operations or cash flows.

Dividend Restrictions

Our Revolving Credit Facility and other debt obligations contain restrictions on the payment of cash dividends upon a default or event of default. As of March 31, 2014, we were in compliance with these covenants.

Due to our holding company structure, substantially all of our operating cash flows are provided by dividends paid or distributions made by our subsidiaries. The cash to pay dividends to our stockholders is derived from these cash flows. As a result, certain statutory limitations or regulatory or financing agreements could affect the levels of distributions allowed to be made by our subsidiaries. The following restrictions on distributions from our subsidiaries existed at March 31, 2014:

• Our utilities are generally limited to the amount of dividends allowed to be paid to us as a utility holding company under the Federal Power Act and settlement agreements with state regulatory jurisdictions. As of March 31, 2014, the restricted net assets at our Utilities Group were approximately $94 million.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

We are a growth-oriented, vertically-integrated energy company operating principally in the United States with two major business groups — Utilities and Non-regulated Energy. We report our business groups in the following financial segments:

Business Group	Financial Segment
Utilities	Electric Utilities
	Gas Utilities
Non-regulated Energy	Power Generation
	Coal Mining
	Oil and Gas

Our Utilities Group consists of our Electric and Gas Utilities segments. Our Electric Utilities segment generates, transmits and distributes electricity to approximately 203,500 customers in South Dakota, Wyoming, Colorado and Montana; and also distributes natural gas to approximately 35,500 Cheyenne Light customers in Wyoming. Our Gas Utilities serve approximately 538,000 natural gas customers in Colorado, Iowa, Kansas and Nebraska. Our Non-regulated Energy Group consists of our Power Generation, Coal Mining and Oil and Gas segments. Our Power Generation segment produces electric power from our generating plants and sells the electric capacity and energy principally to our utilities under long-term contracts. Our Coal Mining segment produces coal at our coal mine near Gillette, Wyoming and sells the coal primarily to on-site, mine-mouth power generation facilities. Our Oil and Gas segment engages in exploration, development and production of crude oil and natural gas, primarily in the Rocky Mountain region.

Certain industries in which we operate are highly seasonal, and revenue from, and certain expenses for, such operations may fluctuate significantly among quarterly periods. Demand for electricity and natural gas is sensitive to seasonal cooling, heating and industrial load requirements, as well as changes in market prices. In particular, the normal peak usage season for electric utilities is June through August while the normal peak usage season for gas utilities is November through March. Significant earnings variances can be expected between the Gas Utilities segment’s peak and off-peak seasons. Due to this seasonal nature, our results of operations for the three months ended March 31, 2014 and 2013, and our financial condition as of March 31, 2014, December 31, 2013 and March 31, 2013, are not necessarily indicative of the results of operations and financial condition to be expected as of or for any other period or for the entire year.

See Forward-Looking Information in the Liquidity and Capital Resources section of this Item 2, beginning on Page 55.

The following business group and segment information does not include inter-company eliminations. Minor differences in amounts may result due to rounding. All amounts are presented on a pre-tax basis unless otherwise indicated.

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Results of Operations

Executive Summary, Significant Events and Overview

Three Months Ended March 31, 2014 Compared to Three Months Ended March 31, 2013. Net income (loss) for the three months ended March 31, 2014 was $48 million, or $1.08 per share, compared to Net income (loss) of $43 million, or $0.97 per share, reported for the same period in 2013.

The following table summarizes select financial results by operating segment and details significant items (in thousands):

	Three Months Ended March 31,
	2014			2013			Variance
Revenue
Utilities	$	441,439		$	362,442		$	78,997
Non-regulated Energy	52,696			49,287			3,409
Inter-company eliminations	(33,966		)	(31,058		)	(2,908		)
	$	460,169		$	380,671		$	79,498
Net income (loss)
Electric Utilities	$	14,575		$	12,356		$	2,219
Gas Utilities	24,698			18,483			6,215
Utilities	39,273			30,839			8,434
Power Generation	8,073			5,644			2,429
Coal Mining	2,464			1,065			1,399
Oil and Gas	(2,022		)	(53		)	(1,969		)
Non-regulated Energy	8,515			6,656			1,859
Corporate activities and eliminations (a)	330			5,702			(5,372		)
Net income (loss)	$	48,118		$	43,197		$	4,921

__________

(a) Corporate activities for the three months ended March 31, 2013 include a $4.8 million net after-tax non-cash mark-to-market gain on certain interest rate swaps. These same interest rate swaps were settled in November 2013.

31

Overview of Business Segments and Corporate Activity

Utilities Group

• Gas Utilities quarter-to-date results were favorably impacted by colder weather during 2014. Heating degree days were 7% higher for the three months ended March 31, 2014, compared to the same period in 2013. Heating degree days for the three months ended March 31, 2014 were 14% higher than normal, compared to 6% higher than normal for the same period in 2013.

• Construction continued on Cheyenne Prairie, a natural gas-fired electric generating facility to serve Cheyenne Light and Black Hills Power customers. The 132 MW generation project is expected to cost approximately $222 million, exclusive of construction financing costs which will be recovered through the construction financing riders. The Electric Utilities recorded additional gross margins of approximately $3.3 million for the three months ended March 31, 2014, relating to these riders. Project to date; we have expended approximately $183 million. The project is on schedule to be placed into service in October 2014.

• On April 30, 2014, Colorado Electric filed a rate request with the CPUC for an annual revenue increase of $8.0 million to recover operating expenses and infrastructure investments, including those for the Busch Ranch Wind Farm. Colorado Electric seeks approval of a new rider pursuant to the Clean Air-Clean Jobs Act Adjustment, to recover a return on the expenditures associated with the construction of the new generating unit approved by the CPUC to replace the W.N. Clark retirement. The filing seeks a return on equity of 10.3% and a capital structure of 50.5% equity and 49.5% debt.

• On April 29, 2014, Kansas Gas filed a rate request with the KCC to increase annual revenue by $7.3 million primarily to recover infrastructure and increased operating costs. The filing seeks a return on equity of 10.6%, and a capital structure of approximately 50.3% equity and 49.7% debt.

• On March 31, 2014, Black Hills Power filed a rate request with the SDPUC to increase annual revenue by $14.6 million to recover operating expenses and infrastructure investments, primarily for Cheyenne Prairie. The filing seeks a return on equity of 10.25%, and a capital structure of approximately 53.3% equity and 46.7% debt.

• On March 21, 2014, Black Hills Power retired the Ben French, Neil Simpson I, and Osage coal-fired power plants. These three plants totaling 81 MW were closed because of federal environmental regulations. These plants will largely be replaced by Black Hills Power’s share of the Cheyenne Prairie Generating Station.

• On February 25, 2014, the CPUC issued a final order after rehearing, approving a CPCN for the retirement of Pueblo Unit #5 and #6, effective December 31, 2013.

• On January 17, 2014, Black Hills Power filed a rate request with the WPSC for an annual revenue increase of $2.8 million, to recover investments made in electric infrastructure, primarily for Cheyenne Prairie. The filing seeks a return on equity of 10.25% and a capital structure of approximately 53.3% equity and 46.7% debt.

• Our Utilities Group continued its efforts to acquire small municipal gas distribution systems adjacent to our existing service territories. During 2014, we acquired an additional gas system, adding approximately 70 customers, and announced the pending acquisition of assets serving approximately 400 customers.

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Non-regulated Energy Group

• Oil and Gas reported a 3% reduction in total volumes sold for the three months ended March 31, 2014. Oil and Gas results benefited from a 1% increase in average hedged price received for crude oil during the three months ended March 31, 2014, compared to the same period in 2013, and a 13% increase in average hedged price received for natural gas for the same period.

• On March 6, 2014, the new Summit Midstream cryogenic gas processing plant with a capacity of 20,000 Mcf per day started serving the company’s gas production in the southern Piceance Basin.

• Two horizontal wells were drilled and completed in the Mancos Shale formation in 2013. Production from these two wells during the quarter was constrained by processing capacity until the new cryogenic gas processing plant began operations in March.

Corporate Activities

• On January 30, 2014, Moody’s raised our corporate credit rating to Baa1 from Baa2 with continued stable outlook.

• Consolidated interest expense decreased by approximately $5.8 million for the three months ended March 31, 2014, compared to the three months ended March 31, 2013, due primarily to the refinancing activities occurring during the fourth quarter of 2013.

Operating Results

A discussion of operating results from our segments and Corporate activities follows.

Utilities Group

We report two segments within the Utilities Group: Electric Utilities and Gas Utilities. The Electric Utilities segment includes the electric operations of Black Hills Power, Colorado Electric and the electric and natural gas operations of Cheyenne Light. The Gas Utilities segment includes the regulated natural gas utility operations of Black Hills Energy in Colorado, Iowa, Kansas and Nebraska.

Non-GAAP Financial Measure

The following discussion includes financial information prepared in accordance with GAAP, as well as another financial measure, gross margin, that is considered a “non-GAAP financial measure.” Generally, a non-GAAP financial measure is a numerical measure of a company’s financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP. Gross margin (revenue less cost of sales) is a non-GAAP financial measure due to the exclusion of depreciation from the measure. The presentation of gross margin is intended to supplement investors’ understanding of our operating performance.

Gross margin for our Electric Utilities is calculated as operating revenue less cost of fuel, purchased power and cost of gas sold. Gross margin for our Gas Utilities is calculated as operating revenues less cost of gas sold. Our gross margin is impacted by the fluctuations in power purchases and natural gas and other fuel supply costs. However, while these fluctuating costs impact gross margin as a percentage of revenue, they only impact total gross margin if the costs cannot be passed through to our customers.

Our gross margin measure may not be comparable to other companies’ gross margin measure. Furthermore, this measure is not intended to replace operating income as determined in accordance with GAAP as an indicator of operating performance.

33

Electric Utilities

	Three Months Ended March 31,
	2014			2013			Variance
	(in thousands)
Revenue — electric	$	168,365		$	150,373		$	17,992
Revenue — gas	13,737			12,257			1,480
Total revenue	182,102			162,630			19,472
Fuel, purchased power and cost of gas — electric	78,418			65,689			12,729
Purchased gas — gas	8,274			6,438			1,836
Total fuel, purchased power and cost of gas	86,692			72,127			14,565
Gross margin — electric	89,947			84,684			5,263
Gross margin — gas	5,463			5,819			(356		)
Total gross margin	95,410			90,503			4,907
Operations and maintenance	42,601			38,835			3,766
Depreciation and amortization	19,086			19,161			(75		)
Total operating expenses	61,687			57,996			3,691
Operating income	33,723			32,507			1,216
Interest expense, net	(12,013		)	(14,397		)	2,384
Other income (expense), net	256			285			(29		)
Income tax benefit (expense)	(7,391		)	(6,039		)	(1,352		)
Net income (loss)	$	14,575		$	12,356		$	2,219

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	Three Months Ended March 31,
Revenue - Electric (in thousands)	2014		2013
Residential:
Black Hills Power	$	20,061	$	16,442
Cheyenne Light	9,673		9,330
Colorado Electric	24,679		24,121
Total Residential	54,413		49,893
Commercial:
Black Hills Power	21,528		17,484
Cheyenne Light	14,394		12,767
Colorado Electric	21,890		21,151
Total Commercial	57,812		51,402
Industrial:
Black Hills Power	7,335		6,010
Cheyenne Light	7,224		4,855
Colorado Electric	9,038		9,637
Total Industrial	23,597		20,502
Municipal:
Black Hills Power	792		714
Cheyenne Light	454		458
Colorado Electric	3,307		2,547
Total Municipal	4,553		3,719
Total Retail Revenue - Electric	140,375		125,516
Contract Wholesale:
Total Contract Wholesale - Black Hills Power	5,598		5,767
Off-system Wholesale:
Black Hills Power	9,075		6,250
Cheyenne Light	2,387		2,682
Colorado Electric	2,082		1,107
Total Off-system Wholesale	13,544		10,039
Other Revenue:
Black Hills Power	6,878		7,150
Cheyenne Light	753		566
Colorado Electric	1,217		1,335
Total Other Revenue	8,848		9,051
Total Revenue - Electric	$	168,365	$	150,373

35

	Three Months Ended March 31,
Quantities Generated and Purchased (in MWh)	2014	2013
Generated —
Coal-fired:
Black Hills Power (a)	417,248	427,015
Cheyenne Light	169,789	172,312
Total Coal-fired	587,037	599,327
Natural Gas and Oil:
Black Hills Power	2,308	3,120
Colorado Electric (b)	18,068	31,054
Total Natural Gas and Oil	20,376	34,174
Wind:
Colorado Electric	14,329	11,173
Total Wind	14,329	11,173
Total Generated:
Black Hills Power	419,556	430,135
Cheyenne Light	169,789	172,312
Colorado Electric	32,397	42,227
Total Generated	621,742	644,674
Purchased —
Black Hills Power	430,801	388,199
Cheyenne Light	207,318	201,845
Colorado Electric	470,101	455,138
Total Purchased	1,108,220	1,045,182
Total Generated and Purchased:
Black Hills Power	850,357	818,334
Cheyenne Light	377,107	374,157
Colorado Electric	502,498	497,365
Total Generated and Purchased	1,729,962	1,689,856

__________

(a) Decrease reflects the retirement of Neil Simpson I on March 21, 2014.

(b) Decrease reflects an unplanned outage due to a turbine bearing replacement and combustor upgrade at Pueblo Airport Generation Station.

36

	Three Months Ended March 31,
Quantity (in MWh)	2014	2013
Residential:
Black Hills Power	171,311	160,970
Cheyenne Light	70,656	75,456
Colorado Electric	153,632	155,436
Total Residential	395,599	391,862
Commercial:
Black Hills Power	184,448	175,617
Cheyenne Light	126,412	129,429
Colorado Electric	158,179	170,705
Total Commercial	469,039	475,751
Industrial:
Black Hills Power	100,851	91,632
Cheyenne Light	90,724	69,952
Colorado Electric	90,116	78,549
Total Industrial	281,691	240,133
Municipal:
Black Hills Power	7,686	7,783
Cheyenne Light	2,493	2,595
Colorado Electric	26,687	18,046
Total Municipal	36,866	28,424
Total Retail Quantity Sold	1,183,195	1,136,170
Contract Wholesale:
Total Contract Wholesale - Black Hills Power	95,228	103,784
Off-system Wholesale:
Black Hills Power	254,796	238,447
Cheyenne Light	52,356	70,308
Colorado Electric	30,746	31,777
Total Off-system Wholesale	337,898	340,532
Total Quantity Sold:
Black Hills Power	814,320	778,233
Cheyenne Light	342,641	347,740
Colorado Electric	459,360	454,513
Total Quantity Sold	1,616,321	1,580,486
Other Uses, Losses or Generation, net (a):
Black Hills Power	36,037	40,101
Cheyenne Light	34,466	26,417
Colorado Electric	43,138	42,852
Total Other Uses, Losses and Generation, net	113,641	109,370
Total Energy	1,729,962	1,689,856

__________

(a) Includes company uses, line losses, test energy and excess exchange production.

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	Three Months Ended March 31,
Degree Days	2014			2013
	Actual	Variance from 30-Year Average		Actual	Variance from 30-Year Average
Heating Degree Days:
Black Hills Power	3,410	6	%	3,210	—	%
Cheyenne Light	3,206	6	%	3,162	5	%
Colorado Electric	2,670	2	%	2,750	5	%
Combined	3,028	5	%	2,986	3	%

Electric Utilities Power Plant Availability	Three Months Ended March 31,
	2014		2013
Coal-fired plants	95.5	%	96.9	%
Other plants (a)	78.1	%	98.6	%
Total availability	86.6	%	97.8	%

__________

(a) Three months ended March 31, 2014, reflects an unplanned outage due to a turbine bearing replacement and combustor upgrade at Pueblo Airport Generation Station.

Cheyenne Light Natural Gas Distribution

Included in the Electric Utilities is Cheyenne Light’s natural gas distribution system. The following table summarizes certain operating information for these natural gas distribution operations:

	Three Months Ended March 31,
	2014		2013
Revenue - Gas (in thousands):
Residential	$	8,224	$	7,532
Commercial	3,977		3,608
Industrial	1,285		898
Other Sales Revenue	251		219
Total Revenue - Gas	$	13,737	$	12,257
Gross Margin (in thousands):
Residential	$	3,605	$	3,960
Commercial	1,332		1,492
Industrial	275		148
Other Gross Margin	251		219
Total Gross Margin	$	5,463	$	5,819
Volumes Sold (Dth):
Residential	1,035,177		1,093,000
Commercial	564,394		625,937
Industrial	255,927		226,947
Total Volumes Sold	1,855,498		1,945,884

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Results of Operations for the Electric Utilities for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net income for the Electric Utilities was $14.6 million for the three months ended March 31, 2014, compared to $12.4 million for the three months ended March 31, 2013, as a result of:

Gross marginincreased primarily due to $2.0 million on increased electric retail megawatt hours sold,and a return on additional investments whichincreased base electric margins by $3.0 million and increased rider margins by $3.3 million.These increases are partially offset by a charge to gross margin of $0.4 million reflecting a power cost sharing mechanism in place at Cheyenne Light,a $0.4 million decrease from wholesale quantities sold,a $0.9 million decrease from contract pricing for industrial customers, and a $1.9 million decrease resulting from energy cost adjustments.

Operations and maintenanceincreased primarily due to an increase in employee costs and property taxes.

Depreciation and amortization was comparable to the same period in the prior year.

Interest expense, netdecreased primarily due to a refinancing higher cost debt refinanced in the fourth quarter of 2013.

Other income (expense), net was comparable to the same period in the prior year.

Income tax benefit (expense): The effective tax rate is higher in 2014 primarily due to the research and development tax credit not being extended to 2014. The first quarter of 2013 reflected the entire year of the 2012 research and development tax credit due to retroactive reinstatement in January 2013 by Congress of the credit.

Gas Utilities

	Three Months Ended March 31,
	2014			2013			Variance
	(in thousands)
Natural gas — regulated	$	251,232		$	191,951		$	59,281
Other — non-regulated services	8,105			7,861			244
Total revenue	259,337			199,812			59,525
Natural gas — regulated	170,774			120,380			50,394
Other — non-regulated services	3,722			3,717			5
Total cost of sales	174,496			124,097			50,399
Gross margin	84,841			75,715			9,126
Operations and maintenance	35,378			33,226			2,152
Depreciation and amortization	6,521			6,503			18
Total operating expenses	41,899			39,729			2,170
Operating income (loss)	42,942			35,986			6,956
Interest expense, net	(3,853		)	(6,277		)	2,424
Other income (expense), net	(17		)	12			(29		)
Income tax benefit (expense)	(14,374		)	(11,238		)	(3,136		)
Net income (loss)	$	24,698		$	18,483		$	6,215

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	Three Months Ended March 31,
Revenue (in thousands)	2014		2013
Residential:
Colorado	$	23,687	$	19,794
Nebraska	62,892		48,852
Iowa	54,764		38,751
Kansas	33,277		25,765
Total Residential	174,620		133,162
Commercial:
Colorado	4,697		3,660
Nebraska	20,066		16,247
Iowa	25,914		17,775
Kansas	11,671		8,789
Total Commercial	62,348		46,471
Industrial:
Colorado	77		48
Nebraska	208		205
Iowa	1,172		745
Kansas	1,086		932
Total Industrial	2,543		1,930
Transportation:
Colorado	325		401
Nebraska	5,730		4,716
Iowa	1,761		1,539
Kansas	2,493		2,049
Total Transportation	10,309		8,705
Other Sales Revenue:
Colorado	31		(74		)
Nebraska	703		614
Iowa	152		112
Kansas	526		1,031
Total Other Sales Revenue	1,412		1,683
Total Regulated Revenue	251,232		191,951
Non-regulated Services	8,105		7,861
Total Revenue	$	259,337	$	199,812

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	Three Months Ended March 31,
Gross Margin (in thousands)	2014		2013
Residential:
Colorado	$	6,372	$	6,238
Nebraska	20,889		18,311
Iowa	15,210		13,589
Kansas	11,584		10,204
Total Residential	54,055		48,342
Commercial:
Colorado	1,060		989
Nebraska	5,163		4,635
Iowa	5,225		4,452
Kansas	3,183		2,644
Total Commercial	14,631		12,720
Industrial:
Colorado	30		30
Nebraska	68		54
Iowa	85		82
Kansas	236		224
Total Industrial	419		390
Transportation:
Colorado	326		401
Nebraska	5,731		4,716
Iowa	1,761		1,539
Kansas	2,493		2,049
Total Transportation	10,311		8,705
Other Sales Margins:
Colorado	31		(74		)
Nebraska	702		614
Iowa	152		112
Kansas	157		761
Total Other Sales Margins	1,042		1,413
Total Regulated Gross Margin	80,458		71,570
Non-regulated Services	4,383		4,145
Total Gross Margin	$	84,841	$	75,715

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	Three Months Ended March 31,
Distribution Quantities Sold and Transportation (in Dth)	2014	2013
Residential:
Colorado	3,021,434	2,921,335
Nebraska	6,986,293	5,737,673
Iowa	6,643,044	5,290,366
Kansas	3,881,555	3,216,306
Total Residential	20,532,326	17,165,680
Commercial:
Colorado	635,690	576,276
Nebraska	2,475,156	2,198,798
Iowa	3,485,692	2,805,673
Kansas	1,541,967	1,277,134
Total Commercial	8,138,505	6,857,881
Industrial:
Colorado	10,325	9,737
Nebraska	26,965	30,680
Iowa	193,863	142,324
Kansas	180,087	188,821
Total Industrial	411,240	371,562
Wholesale and Other:
Kansas	68,633	55,010
Total Wholesale and Other	68,633	55,010
Total Distribution Quantities Sold	29,150,704	24,450,133
Transportation:
Colorado	330,344	412,709
Nebraska	9,963,219	8,682,315
Iowa	6,157,366	5,679,157
Kansas	4,827,137	4,052,018
Total Transportation	21,278,066	18,826,199
Total Distribution Quantities Sold and Transportation	50,428,770	43,276,332

Our Gas Utilities are highly seasonal, and sales volumes vary considerably with weather and seasonal heating and industrial loads. Over 70 percent of our Gas Utilities’ revenue and margins are expected in the first and fourth quarters of each year. Therefore, revenue for and certain expenses of these operations fluctuate significantly among quarters. Depending upon the state in which our Gas Utilities operate, the winter heating season begins around November 1 and ends around March 31.

42

	Three Months Ended March 31,
	2014			2013
Heating Degree Days:	Actual	Variance From 30-Year Average		Actual	Variance From 30-Year Average
Colorado	2,859	2	%	2,872	3	%
Nebraska	3,272	7	%	3,129	3	%
Iowa	4,174	19	%	3,743	11	%
Kansas (a)	2,689	8	%	2,550	3	%
Combined (b)	3,524	14	%	3,306	6	%

__________

(a) Kansas Gas has an approved weather normalization mechanism within its rate structure, which minimizes weather impact on gross margins.

(b) The combined heating degree days are calculated based on a weighted average of total customers by state excluding Kansas Gas due to its weather normalization mechanism.

Results of Operations for the Gas Utilities for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net income for the Gas Utilities was $24.7 million for the three months ended March 31, 2014, compared to Net income of $18.5 million for the three months ended March 31, 2013, as a result of:

Gross marginincreased primarily due to colder weather than the same period in the prior year resulting inhigher residential, commercial, and transport volumes sold.Heating degree days were7%higher for the three months ended March 31, 2014, compared to the same period in the prior year and14%higher than normal.

Operations and maintenanceincreased primarily due to an increase in employee costs and property taxes.

Depreciation and amortization were comparable to the same period in the prior year.

Interest expense, netdecreased primarily due to refinancing higher cost debt in the fourth quarter of 2013.

Other income (expense), net was comparable to the same period in the prior year.

Income tax benefit (expense):The effective tax rate for 2014 was slightly lower than 2013 due primarily to an increase in an estimated flow-through tax adjustment.

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Regulatory Matters — Utilities Group

The following summarizes our recent state and federal rate case and initial surcharge orders (in millions):

	Type of Service	Date Requested	Effective Date	Revenue Amount Requested		Revenue Amount Approved
Cheyenne Light (a)	Electric/Gas	12/2013	pending	$	14.1	pending
Black Hills Power (b)	Electric	1/2014	pending	$	2.8	pending
Black Hills Power (c)	Electric	3/2014	pending	$	14.6	pending
Iowa Gas (d)	Gas	2/2014	4/2014	$	0.5	$	0.5
Kansas Gas (e)	Gas	4/2014	pending	$	7.3	pending
Colorado Electric (f)	Electric	4/2014	pending	$	8.0	pending

__________

(a) On December 2, 2013, Cheyenne Light filed a rate request with the WPSC for annual electric and natural gas revenue increases of $12.8 million and $1.3 million, respectively to recover investment in Cheyenne Prairie, existing infrastructure and increased operating costs. The filing seeks a return on equity of 10.25% and a capital structure of 54.0% equity and 46.0% debt. Cheyenne Light is seeking to implement the new rates on October 1, 2014, to coincide with Cheyenne Prairie’s expected in-service date.

(b) On January 17, 2014, Black Hills Power filed a rate request with the WPSC for an annual revenue increase of $2.8 million, to recover investments made in electric infrastructure, primarily for Cheyenne Prairie. The filing seeks a return on equity of 10.25% and a capital structure of approximately 53.3% equity and 46.7% debt. Black Hills Power is seeking to implement the new rates on October 1, 2014, to coincide with Cheyenne Prairie’s expected in-service date.

(c) On March 31, 2014, Black Hills Power filed a rate request with the SDPUC to increase annual revenue by $14.6 million to recover operating expenses and infrastructure investments, primarily for Cheyenne Prairie. The filing seeks a return on equity of 10.25%, and a capital structure of approximately 53.3% equity and 46.7% debt. Black Hills Power is seeking to implement the new rates on October 1, 2014, to coincide with Cheyenne Prairie’s expected in-service date.

(d) On April 15, 2014, the IUB approved a capital investment recovery surcharge increase of $0.5 million.

(e) On April 29, 2014, Kansas Gas filed a rate request with the KCC to increase annual revenue by $7.3 million primarily to recover infrastructure and increased operating costs. The filing seeks a return on equity of 10.6%, and a capital structure of approximately 50.3% equity and 49.7% debt.

(f) On April 30, 2014, Colorado Electric filed a rate request with the CPUC for an annual revenue increase of $8.0 million to recover operating expenses and infrastructure investments, including those for the Busch Ranch Wind Farm. Colorado Electric seeks approval of a new rider pursuant to the Clean Air-Clean Jobs Act Adjustment, to recover a return on the expenditures associated with the construction of the new generating unit approved by the CPUC to replace the W.N. Clark retirement. The filing seeks a return on equity of 10.3% and a capital structure of 50.5% equity and 49.5% debt.

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Non-regulated Energy Group

We report three segments within our Non-regulated Energy Group: Power Generation, Coal Mining and Oil and Gas.

Power Generation

	Three Months Ended March 31,
	2014			2013			Variance
	(in thousands)
Revenue	$	22,348		$	20,360		$	1,988
Operations and maintenance	7,677			7,791			(114		)
Depreciation and amortization	1,209			1,226			(17		)
Total operating expense	8,886			9,017			(131		)
Operating income	13,462			11,343			2,119
Interest expense, net	(928		)	(2,674		)	1,746
Other (expense) income, net	(9		)	1			(10		)
Income tax (expense) benefit	(4,452		)	(3,026		)	(1,426		)
Net income (loss)	$	8,073		$	5,644		$	2,429

____________

The generating facility located in Pueblo, Colorado is accounted for as a capital lease under GAAP; as such, revenue and depreciation expense are impacted by the accounting for this lease. Under the lease, the original cost of the facility is recorded at Colorado Electric and is being depreciated by Colorado Electric for segment reporting purposes.

The following table summarizes MWh for our Power Generation segment:

	Three Months Ended March 31,
	2014	2013
Quantities Sold, Generated and Purchased (MWh)	(in thousands)
Sold
Black Hills Colorado IPP	285,956	234,196
Black Hills Wyoming	140,608	142,106
Total Sold	426,564	376,302
Generated
Black Hills Colorado IPP	285,956	234,196
Black Hills Wyoming	140,678	144,189
Total Generated	426,634	378,385
Purchased
Black Hills Colorado IPP	—	—
Black Hills Wyoming	989	—
Total Purchased	989	—

The following table provides certain operating statistics for our plants within the Power Generation segment:

	Three Months Ended March 31,
	2014		2013
Contracted power plant fleet availability:
Coal-fired plant	99.3	%	100.0	%
Natural gas-fired plants	97.9	%	98.6	%
Total availability	98.2	%	98.9	%

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Results of Operations for Power Generation for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net income for the Power Generation segment was $8.1 million for the three months ended March 31, 2014, compared to Net income of $5.6 million for the same period in 2013 as a result of:

Revenueincreased primarily due to an increase in prices on delivered megawatt hours.

Operations and maintenance was comparable to the same period in the prior year.

Depreciation and amortizationwas comparable to the same period in the prior year.

Interest expense, netdecreased primarily due to refinancing higher cost project debt and settling associated interest rate swaps in the fourth quarter of 2013.

Other (expense) income, net was comparable to the same period in the prior year.

Income tax (expense) benefit:The effective tax rate in 2013 was favorably impacted by a state tax adjustment.

Coal Mining

	Three Months Ended March 31,
	2014			2013			Variance
	(in thousands)
Revenue	$	15,498		$	13,583		$	1,915
Operations and maintenance	10,131			10,151			(20		)
Depreciation, depletion and amortization	2,690			2,865			(175		)
Total operating expenses	12,821			13,016			(195		)
Operating income (loss)	2,677			567			2,110
Interest (expense) income, net	(103		)	(131		)	28
Other income, net	603			613			(10		)
Income tax benefit (expense)	(713		)	16			(729		)
Net income (loss)	$	2,464		$	1,065		$	1,399

The following table provides certain operating statistics for our Coal Mining segment (in thousands):

	Three Months Ended March 31,
	2014	2013
Tons of coal sold	1,087	1,053
Cubic yards of overburden moved	910	1,059

Results of Operations for Coal Mining for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net income for the Coal Mining segment was $2.5 million for the three months ended March 31, 2014, compared to Net income of $1.1 million for the same period in 2013 as a result of:

Revenueincreased primarily due to an 11%increase in price per ton sold and a 3%increase in tons sold. Approximately 50% of our coal production is sold under contracts that include price adjustments based on actual mining costs, including income taxes.

Operations and maintenancewas comparable to prior year,reflecting a lower stripping ratio that drove a decline in overburden removal costs,and a favorable coal tax adjustment of $0.7 million,partially offset by an increase in repairs and maintenance.

Depreciation, depletion and amortization were comparable to the same period in the prior year.

Interest (expense) income, net was comparable to the same period in the prior year.

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Other income, net was comparable to the same period in the prior year.

Income tax benefit (expense): The increase in the effective tax rate in 2014 is due primarily to the reduced impact of the tax benefit of percentage depletion.

Oil and Gas

	Three Months Ended March 31,
	2014			2013			Variance
	(in thousands)
Revenue	$	14,850		$	15,344		$	(494	)
Operations and maintenance	11,139			10,255			884
Depreciation, depletion and amortization	6,633			5,367			1,266
Total operating expenses	17,772			15,622			2,150
Operating income (loss)	(2,922		)	(278		)	(2,644		)
Interest income (expense), net	(455		)	79			(534		)
Other income (expense), net	38			(77		)	115
Income tax benefit (expense)	1,317			223			1,094
Net income (loss)	$	(2,022	)	$	(53	)	$	(1,969	)

The following tables provide certain operating statistics for our Oil and Gas segment:

	Three Months Ended March 31,
	2014	2013
Production:
Bbls of oil sold	74,262	96,803
Mcf of natural gas sold	1,759,964	1,732,950
Gallons of NGL sold	1,135,721	945,814
Mcf equivalent sales	2,367,782	2,448,884

	Three Months Ended March 31,
	2014		2013
Average price received: (a)
Oil/Bbl	$	90.75	$	89.73
Gas/Mcf	$	3.35	$	2.96
NGL/gallon	$	1.17	$	0.94
Depletion expense/Mcfe	$	2.25	$	1.78

__________

(a) Net of hedge settlement gains and losses.

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The following is a summary of certain average operating expenses per Mcfe:

	Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
Producing Basin	LOE			Gathering,  Compression  and Processing		Production Taxes		Total		LOE		Gathering,  Compression and Processing		Production Taxes		Total
San Juan	$	1.54		$	0.43	$	0.63	$	2.60	$	1.29	$	0.34	$	0.42	$	2.05
Piceance	(0.06		)	0.24		0.57		0.75		0.65		0.65		0.33		1.63
Powder River	2.36			—		1.34		3.70		1.26		—		1.24		2.50
Williston	0.67			—		1.90		2.57		0.83		—		1.07		1.90
All other properties	1.61			—		0.02		1.63		0.70		—		0.38		1.08
Total weighted average	$	1.19		$	0.23	$	0.74	$	2.16	$	1.08	$	0.23	$	0.65	$	1.96

Results of Operations for Oil and Gas for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net loss for the Oil and Gas segment was $2.0 million for the three months ended March 31, 2014, compared to Net loss of $0.1 million for the same period in 2013 as a result of:

Revenuedecreased primarily due to a 3%decreasein production primarily driven by normal declines on non-operated crude oil volumes sold,partially offset by a13% increase in the average hedged price received for natural gas sold, and a1% increase in the average price received for crude oil sold.

Operations and maintenanceincreased primarily due to higher non-operated well costs, higher production taxes and ad valorem taxes on higher natural gas revenue.

Depreciation, depletion and amortizationincreased primarily due to a higher depletion rate.

Interest income (expense), net was comparable to prior year.

Other income (expense), net was comparable to the same period in the prior year.

Income tax (expense) benefit: Each period presented reflects a tax benefit that was favorably impacted by the tax effect of essentially the same amount of estimated percentage depletion deduction.

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Corporate Activity

Results of Operations for Corporate activities for the Three Months Ended March 31, 2014 Compared to the Three Months Ended March 31, 2013: Net income for Corporate was $0.3 million for the three months ended March 31, 2014, compared to Net income of $5.7 million for the three months ended March 31, 2013 as a result of:

• The settlement of the de-designated interest rate swaps in the fourth quarter of 2013, resulted in no activity for the three months ended March 31, 2014, compared to the recognition of an unrealized, non-cash mark-to-market gain of $7.5 million during the three months ended March 31, 2013.

• The income for the three months ended March 31, 2014 included lower interest expense as compared to the three months ended March 31, 2013, as a result of lower interest rate debt from refinancing activities in fourth quarter 2013 and the settlement of the de-designated interest rate swaps.

Critical Accounting Policies

There have been no material changes in our critical accounting policies from those reported in our 2013 Annual Report on Form 10-K filed with the SEC. For more information on our critical accounting policies, see Part II, Item 7 of our 2013 Annual Report on Form 10-K.

Liquidity and Capital Resources

OVERVIEW

BHC and its subsidiaries require cash to support and grow our business. Our predominant source of cash is supplied by our operations and supplemented with corporate borrowings. This cash is used for, among other things, working capital, capital expenditures, dividends, pension funding, investments in or acquisitions of assets and businesses, payment of debt obligations and redemption of outstanding debt and equity securities when required or financially appropriate.

The most significant items impacting cash are our capital expenditures, the purchase of natural gas for our Utilities Group and our Power Generation segment, and the payment of dividends to our shareholders. We could experience significant cash requirements during peak months of the winter heating season due to higher natural gas consumption and during periods of high natural gas prices.

We believe that our cash on hand, operating cash flows, existing borrowing capacity and ability to complete new debt and equity financings, taken in their entirety, provide sufficient capital resources to fund our ongoing operating requirements, debt maturities, anticipated dividends, and anticipated capital expenditures discussed in this section.

Significant Factors Affecting Liquidity

Although we believe we have sufficient resources to fund our cash requirements, there are many factors with the potential to influence our cash flow position, including seasonality, commodity prices, significant capital projects, requirements imposed by state and federal agencies, and economic market conditions. We have implemented risk mitigation programs, where possible, to stabilize cash flow; however, the potential for unforeseen events affecting cash needs will continue to exist.

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Cash Flow Activities

The following table summarizes our cash flows for the three months ended March 31, 2014 and 2013 (in thousands):

Cash provided by (used in):	2014			2013			Increase (Decrease)
Operating activities	$	98,098		$	109,232		$	(11,134	)
Investing activities	$	(86,829	)	$	(62,909	)	$	(23,920	)
Financing activities	$	(1,469	)	$	(49,388	)	$	47,919

Three Months Ended March 31, 2014 Compared to Three Months Ended March 31, 2013

Operating Activities

Net cash provided by operating activities was $11 millionlower for the three months ended March 31, 2014, than for the same period in 2013 primarily attributable to:

• Cash earnings (net income plus non-cash adjustments) were $15 millionhigher for the three months ended March 31, 2014 than for the same period in the prior year.

• Net outflows from operating assets and liabilities were $27 million for the three months ended March 31, 2014, compared to net cash outflows of $0.4 million in the same period in the prior year. Changes are primarily due to:

• Increased working capital requirements resulting from higher natural gas volumes sold driven by cold weather and higher natural gas prices creating an increase in GCAs recorded in regulatory assets in our Utility Group, and

• Receipt in 2013 of approximately $8.0 million from a government grant relating to the Busch Ranch wind project.

Investing Activities

Net cash used in investing activities was $87 million for the three months ended March 31, 2014, compared to net cash used in investing activities of $63 million for the same period in 2013 for a variance of $24 million. The variance was primarily driven by:

• Capital expenditures of approximately $83 million for the three months ended March 31, 2014, compared to $64 million for the three months ended March 31, 2013. The increase is related primarily to the construction of Cheyenne Prairie at our Electric Utilities segment and capital expenditures at our Oil and Gas segment.

Financing Activities

Net cash used in financing activities for the three months ended March 31, 2014, was $1.5 million, compared to net cash used in financing activities for the same period in 2013 of $49 million for a variance of $48 million. The variance was primarily driven by:

• Net short-term borrowings increased primarily due to capital expenditures and working capital requirements resulting from colder weather.

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Dividends

Dividends paid on our common stock totaled $17.4 million for the three months ended March 31, 2014, or $0.39 per share. On April 28, 2014, our board of directors declared a quarterly dividend of $0.39 per share payable June 1, 2014, which is equivalent to an annual dividend rate of $1.56 per share. The determination of the amount of future cash dividends, if any, to be declared and paid will depend upon, among other things, our financial condition, funds from operations, the level of our capital expenditures, restrictions under our Revolving Credit Facility and our future business prospects.

Debt

Financing Transactions and Short-Term Liquidity

Our principal sources to meet day-to-day operating cash requirements are cash from operations and our corporate Revolving Credit Facility.

Revolving Credit Facility

We have a $500 million corporate Revolving Credit Facility that matures on February 1, 2017, which has an accordion feature that allows us, with the consent of the administrative agent and issuing agents, to increase the capacity of the facility to $750 million. Borrowings are available under a base rate or various Eurodollar rate options. The interest costs associated with the letters of credit or borrowings and the commitment fee under the Revolving Credit Facility are determined based upon the lowest credit ratings of S&P and Moody’s that apply to our debt. Based on our credit ratings, the margins for base rate borrowings, Eurodollar borrowings and letters of credit were 0.375%, 1.375% and 1.375%, respectively, during the three months ended March 31, 2014. A commitment fee is charged on the unused amount of the Revolving Credit Facility and was 0.20% based on our credit rating.

Our Revolving Credit Facility had the following borrowings, outstanding letters of credit and available capacity (in millions):

		Current		Borrowings at		Letters of Credit at		Available Capacity at
Credit Facility	Expiration	Capacity		March 31, 2014		March 31, 2014		March 31, 2014
Revolving Credit Facility	February 1, 2017	$	500	$	100	$	28	$	372

The Revolving Credit Facility contains customary affirmative and negative covenants, such as limitations on the creation of new indebtedness and on certain liens, restrictions on certain transactions, and maintaining a certain recourse leverage ratio. Under the Revolving Credit Facility, our recourse leverage ratio is the ratio of our recourse debt, letters of credit and certain guarantees issued, divided by total capital, which includes recourse indebtedness plus our net worth. Subject to applicable cure periods, a violation of any of these covenants would constitute an event of default that entitles the lenders to terminate their remaining commitments and accelerate all principal and interest outstanding. We were in compliance with these covenants as of March 31, 2014.

The Revolving Credit Facility prohibits us from paying cash dividends if a default or an event of default exists prior to, or would result after, paying a dividend. Although these contractual restrictions exist, we do not anticipate triggering any default measures or restrictions.

Hedges and Derivatives

Interest Rate Swaps

We have entered into floating-to-fixed interest rate swap agreements to reduce our exposure to interest rate fluctuations. We have $75 million notional amount floating-to-fixed interest rate swaps with a maximum remaining term of approximately 2.75 years. These swaps have been designated as cash flow hedges for the Revolving Credit Facility, and accordingly their mark-to-market adjustments are recorded in Accumulated other comprehensive income (loss) on the accompanying Condensed Consolidated Balance Sheets. The mark-to-market value of these swaps was a liability of $8.3 million at March 31, 2014.

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Financing Activities

On November 19, 2013, we entered into a $525 million, 4.25% senior unsecured note expiring on November 30, 2023. The proceeds of this debt were used to:

• Redeem our $250 million senior unsecured 9.0% notes originally due on May 15, 2014. This repayment occurred on December 19, 2013, for approximately $261 million which included a make-whole provision of approximately $8.5 million and accrued interest.

• Repay our variable interest rate Black Hills Wyoming project financing with a remaining balance of $87 million originally due on December 9, 2016, and settle the interest rate swaps designated to this project financing of $8.5 million.

• Settle the $250 million notional de-designated interest rate swaps for approximately $64 million.

• Pay down $55 million of the Revolving Credit Facility.

• Remainder was used for general corporate purposes.

On June 21, 2013, we entered into a new two-year $275 million term loan expiring on June 19, 2015. The proceeds from this new term loan repaid the $150 million term loan due on June 24, 2013, the $100 million long-term corporate term loan due on September 30, 2013, and $25 million in short-term borrowing under our Revolving Credit Facility. At March 31, 2014, the cost of borrowing under this new term loan was 1.3125% (LIBOR plus a margin of 1.125%).

Future Financing Plans

We are considering the following financing activities:

• Evaluation of long-term debt financing options, including the issuance of utility first mortgage bonds using a private placement delayed draw feature to primarily finance the Cheyenne Prairie capital project. The draw is anticipated to occur in the second or third quarter prior to the in-service date of Cheyenne Prairie; and

• Extension of our Revolving Credit Facility which expires in 2017.

Dividend Restrictions

As a utility holding company which owns several regulated utilities, we are subject to various regulations that could influence our liquidity. Our utilities in Colorado, Iowa, Kansas and Nebraska have regulatory agreements in which they cannot pay dividends if they have issued debt to third parties and the payment of a dividend would reduce their equity ratio to below 40% of their total capitalization; and neither Black Hills Utility Holdings nor its subsidiaries can extend credit to the Company except in ordinary course of business and upon reasonable terms consistent with market terms. The use of our utility assets as collateral generally requires the prior approval of the state regulators in the state in which the utility assets are located. Additionally, our utility subsidiaries may generally be limited to the amount of dividends allowed by state regulatory authorities to be paid to us as a utility holding company and also may have further restrictions under the Federal Power Act. As a result of our holding company structure, our right as a common shareholder to receive assets of any of our direct or indirect subsidiaries upon a subsidiary’s liquidation or reorganization is junior to the claims against the assets of such subsidiaries by their creditors. Therefore, our holding company debt obligations are effectively subordinated to all existing and future claims of the creditors of our subsidiaries, including trade creditors, debt holders, secured creditors, taxing authorities, and guarantee holders. As of March 31, 2014, the restricted net assets at our Electric Utilities and Gas Utilities were approximately $94 million.

Our credit facilities and other debt obligations contain restrictions on the payment of cash dividends upon a default or event of default. An event of default would be deemed to have occurred if we did not meet certain financial covenants. The only financial covenant under our Revolving Credit Facility is a recourse leverage ratio not to exceed 0.65 to 1.00. Additionally, covenants within Cheyenne Light’s financing agreements require Cheyenne Light to maintain a debt to capitalization ratio of no more than 0.60 to 1.00. As of March 31, 2014, we were in compliance with this covenant.

There have been no other material changes in our financing transactions and short-term liquidity from those reported in Item 7 of our 2013 Annual Report on Form 10-K filed with the SEC.

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Credit Ratings

Financing for operational needs and capital expenditure requirements not satisfied by operating cash flows depends upon the cost and availability of external funds through both short and long-term financing. The inability to raise capital on favorable terms could negatively affect our ability to maintain or expand our businesses. Access to funds is dependent upon factors such as general economic and capital market conditions, regulatory authorizations and policies, our credit ratings, cash flows from routine operations and the credit ratings of counterparties. After assessing the current operating performance, liquidity and our credit ratings, management believes that we will have access to the capital markets at prevailing market rates for companies with comparable credit ratings. Credit ratings are prepared by third party rating agencies and are not recommendations to buy, sell, or hold securities and may be subject to revision or withdrawal at any time by the assigning rating agency. Each rating should be evaluated independently of any other rating.

The following table represents the credit ratings and outlook of BHC at March 31, 2014:

Rating Agency	Senior Unsecured Rating	Outlook
S&P	BBB	Stable
Moody’s (a)	Baa1	Stable
Fitch	BBB	Positive

__________

(a) On January 30, 2014, Moody’s upgraded the BHC credit rating to Baa1 with a Stable outlook.

The following table represents the credit ratings of Black Hills Power’s Senior Secured Mortgage Bonds at March 31, 2014:

Rating Agency	Senior Secured Rating
S&P	A-
Moody’s *	A1
Fitch	A-

___________

* On January 30, 2014, Moody’s upgraded the BHP credit rating to A1 from A2.

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Capital Requirements

Actual and forecasted capital requirements are as follows (in thousands):

	Expenditures for the		Total		Total		Total
	Three Months Ended March 31, 2014 (a)		2014 Planned Expenditures (b)		2015 Planned Expenditures		2016 Planned Expenditures
Utilities:
Electric Utilities	$	49,546	$	250,700	$	189,300	$	160,500
Gas Utilities	6,323		63,000		62,000		47,600
Non-regulated Energy:
Power Generation	708		2,500		5,200		3,200
Coal Mining	424		6,600		6,200		7,300
Oil and Gas	5,701		117,800		122,700		122,200
Corporate	2,034		8,700		5,900		6,100
	$	64,736	$	449,300	$	391,300	$	346,900

__________    

(a)    Expenditures for the three months ended March 31, 2014 include the impact of accruals for property, plant and equipment.

(b)    Includes actual expenditures for the three months ended March 31, 2014.

We continue to evaluate potential future acquisitions and other growth opportunities that are dependent upon the availability of economic opportunities; as a result, capital expenditures may vary significantly from the estimates identified above.

Contractual Obligations

Except as noted below, there have been no significant changes in the contractual obligations from those previously disclosed in Note 18 of our Notes to the Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.

Natural Gas Delivery Agreement

In 2012, we entered into a ten-year gas gathering and processing contract for natural gas production from our properties in the Piceance Basin in Colorado, under which we pay a gathering fee per Mcf. The contract requires us to deliver a minimum of 20,000 Mcf per day. This agreement became effective in first quarter of 2014 upon completion of the processing infrastructure capable of handling the committed volumes. We believe that our reserves dedicated to the gathering system, and the projected volumes are adequate to satisfy our delivery commitments under this agreement.

Construction Commitments

Construction of Cheyenne Prairie, a 132 MW natural gas-fired electric generating facility jointly owned by Cheyenne Light and Black Hills Power is expected to cost approximately$222 million. Construction is expected to be completed by September 30, 2014. As of March 31, 2014, contracts for equipment purchases and for construction were 100% and 83% committed, respectively.

Guarantees

There have been no significant changes to guarantees from those previously disclosed in Note 19 of the Notes to the Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.

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New Accounting Pronouncements

Other than the pronouncements reported in our 2013 Annual Report on Form 10-K filed with the SEC and those discussed in Note 1 of the Notes to Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q, there have been no new accounting pronouncements that are expected to have a material effect on our financial statements.

FORWARD-LOOKING INFORMATION

This Quarterly Report on Form 10-Q contains forward-looking statements as defined by the SEC. Forward-looking statements are all statements other than statements of historical fact, including without limitation those statements that are identified by the words “anticipates,” “estimates,” “expects,” “intends,” “plans,” “predicts” and similar expressions, and include statements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements that are other than statements of historical facts. From time to time, the Company may publish or otherwise make available forward-looking statements of this nature, including statements contained within Item 2 - Management’s Discussion & Analysis of Financial Condition and Results of Operations.

Forward-looking statements involve risks and uncertainties, which could cause actual results or outcomes to differ materially from those expressed. The Company’s expectations, beliefs and projections are expressed in good faith and are believed by the Company to have a reasonable basis, including without limitation, management’s examination of historical operating trends, data contained in the Company’s records and other data available from third parties. Nonetheless, the Company’s expectations, beliefs or projections may not be achieved or accomplished.

Any forward-looking statement contained in this document speaks only as of the date on which the statement was made, and the Company undertakes no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which the statement was made or to reflect the occurrence of unanticipated events. New factors emerge from time to time, and it is not possible for management to predict all of the factors, nor can it assess the effect of each factor on the Company’s business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement. All forward-looking statements, whether written or oral and whether made by or on behalf of the Company, are expressly qualified by the risk factors and cautionary statements described in our 2013 Annual Report on Form 10-K including statements contained within Item 1A - Risk Factors of our 2013 Annual Report on Form 10-K, Part II, Item 1A of this Quarterly Report on Form 10-Q and other reports that we file with the SEC from time to time.

55

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Utilities

Our utility customers are exposed to natural gas price volatility; therefore, as allowed or required by state utility commissions, we have entered into commission approved hedging programs utilizing natural gas futures, options and basis swaps to reduce our customers’ underlying exposure to these fluctuations. The fair value of our Utilities Group’s derivative contracts is summarized below (in thousands) as of:

	March 31, 2014			December 31, 2013			March 31, 2013
Net derivative (liabilities) assets	$	(3,693	)	$	(6,071	)	$	(3,965	)
Cash collateral offset in Derivatives	5,539			6,733			4,487
Cash Collateral included in Other current assets	1,917			3,390			3,295
Net receivable (liability) position	$	3,763		$	4,052		$	3,817

Oil and Gas Activities

We have entered into agreements to hedge a portion of our estimated 2014, 2015 and 2016 natural gas and crude oil production from the Oil and Gas segment. The hedge agreements in place at March 31, 2014, were as follows:

Natural Gas

	March 31,		June 30,		September 30,		December 31,		Total Year
2014
Swaps - MMBtu	—		1,282,500		1,215,000		1,185,000		3,682,500
Weighted Average Price per MMBtu	$	—	$	3.83	$	3.98	$	3.99	$	3.93
2015
Swaps - MMBtu	990,000		952,500		725,000		770,000		3,437,500
Weighted Average Price per MMBtu	$	4.23	$	3.99	$	3.94	$	4.00	$	4.05
2016
Swaps - MMBtu	313,750		300,000		292,500		270,000		1,176,250
Weighted Average Price per MMBtu	$	3.77	$	3.93	$	4.11	$	3.75	$	3.89

56

Crude Oil

	March 31,		June 30,		September 30,		December 31,		Total Year
2014
Swaps - Bbls	—		60,000		57,000		57,000		174,000
Weighted Average Price per Bbl	$	—	$	90.65	$	90.55	$	90.66	$	90.62
Puts - Bbls	—		—		—		—		—
Weighted Average Price per Bbl	$	—	$	—	$	—	$	—	$	—
Calls - Bbls	—		—		—		—		—
Weighted Average Price per Bbl	$	—	$	—	$	—	$	—	$	—
2015
Swaps - Bbls	55,500		51,000		39,000		33,000		178,500
Weighted Average Price per Bbl	$	89.98	$	87.84	$	87.73	$	87.36	$	88.39
2016
Swaps - Bbls	24,000		24,000		21,000		21,000		90,000
Weighted Average Price per Bbl	$	81.99	$	81.99	$	81.61	$	81.61	$	81.81
Puts - Bbls	—		—		—		—		—
Weighted Average Price per Bbl	$	—	$	—	$	—	$	—	$	—
Calls - Bbls	—		—		—		—		—
Weighted Average Price per Bbl	$	—	$	—	$	—	$	—	$	—

57

Financing Activities

We engage in activities to manage risks associated with changes in interest rates. We have entered into floating-to-fixed interest rate swap agreements to reduce our exposure to interest rate fluctuations associated with our floating rate debt obligations. Further details of the swap agreements are set forth in Note 8 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K and in Note 8 of the Notes to the Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q.

The contract or notional amounts, terms of our interest rate swaps and the interest rate swaps balances reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014			December 31, 2013			March 31, 2013
	Designated  Interest Rate Swaps (a)			Designated Interest Rate Swaps (a)			Designated Interest Rate Swaps (b)			De-designated Interest Rate Swaps (c)
Notional	$	75,000		$	75,000		$	150,000		$	250,000
Weighted average fixed interest rate	4.97		%	4.97		%	5.04		%	5.67		%
Maximum terms in years	2.75			3.00			3.75			0.75
Derivative liabilities, current	$	3,498		$	3,474		$	6,982		$	80,692
Derivative liabilities, non-current	$	4,805		$	5,614		$	15,237		$	—

__________

(a) These swaps are designated to borrowings on our Revolving Credit Facility, and are priced using three-month LIBOR, matching the floating portion of the related swaps.

(b) At March 31, 2013, $75 million of these interest rate swaps were designated to borrowings on our Revolving Credit Facility and $75 million were designated to borrowings on our project financing debt at Black Hills Wyoming. These swaps are priced using three-month LIBOR, matching the floating portion of the related swaps. The portion of the swaps that were designated to Black Hills Wyoming were settled during the fourth quarter of 2013 upon repayment of the Black Hills Wyoming project financing.

(c) These swaps were settled during the fourth quarter of 2013.

Based on March 31, 2014market interest rates and balances related to our interest rate swaps, a loss of approximately$3.5 millionwould be realized, reported in pre-tax earnings and reclassified from AOCI during the next 12 months.Estimated and actual realized gains or losses will change during future periods as market interest rates change.

ITEM 4.CONTROLS AND PROCEDURES

Our Chief Executive Officer and Chief Financial Officer evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934) as of March 31, 2014. Based on their evaluation, they have concluded that our disclosure controls and procedures are effective.

During the quarter ended March 31, 2014, there have been no changes in our internal control over financial reporting that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

58

BLACK HILLS CORPORATION

Part II — Other Information

ITEM 1. Legal Proceedings

For information regarding legal proceedings, see Note 18 in Item 8 of our 2013 Annual Report on Form 10-K and Note 14 in Item 1 of Part I of this Quarterly Report on Form 10-Q, which information from Note 14 is incorporated by reference into this item.

ITEM 1A. Risk Factors

There are no material changes to the risk factors previously disclosed in Item 1A of Part I in our 2013 Annual Report on Form 10-K.

ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds

There were no unregistered securities sold during the quarter.

ITEM 4. Mine Safety Disclosures

Information concerning mine safety violations or other regulatory matters required by Sections 1503(a) of Dodd-Frank is included in Exhibit 95 of this Quarterly Report on Form 10-Q.

ITEM 5. Other Information

None.

59

ITEM 6. Exhibits

Exhibit Number	Description
Exhibit 3.1*	Restated Articles of Incorporation of the Registrant (filed as Exhibit 3 to the Registrant’s Form 10-K for 2004).
Exhibit 3.2*	Amended and Restated Bylaws of the Registrant dated January 28, 2010 (filed as Exhibit 3 to the Registrant’s Form 8-K filed on February 3, 2010).
Exhibit 4.1*	Indenture dated as of May 21, 2003 between the Registrant and Wells Fargo Bank, National Association (as successor to LaSalle Bank National Association), as Trustee (filed as Exhibit 4.1 to the Registrant’s Form 10-Q for the quarterly period ended June 30, 2003). First Supplemental Indenture dated as of May 21, 2003 (filed as Exhibit 4.2 to the Registrant’s Form 10-Q for the quarterly period ended June 30, 2003). Second Supplemental Indenture dated as of May 14, 2009 (filed as Exhibit 4 to the Registrant’s Form 8-K filed on May 14, 2009). Third Supplemental Indenture dated as of July 16, 2010 (filed as Exhibit 4 to Registrant’s Form 8-K filed on July 15, 2010). Fourth Supplemental Indenture dated as of November 19, 2013 (filed as Exhibit 4 to the Registrant’s Form 8-K filed on November 18, 2013).
Exhibit 4.2*	Restated and Amended Indenture of Mortgage and Deed of Trust of Black Hills Corporation (now called Black Hills Power, Inc.) dated as of September 1, 1999 (filed as Exhibit 4.19 to the Registrant’s Post-Effective Amendment No. 1 to the Registrant’s Registration Statement on Form S-3 (No. 333-150669)). First Supplemental Indenture, dated as of August 13, 2002, between Black Hills Power, Inc. and The Bank of New York Mellon (as successor to JPMorgan Chase Bank), as Trustee (filed as Exhibit 4.20 to the Registrant’s Post-Effective Amendment No. 1 to the Registrant’s Registration Statement on Form S‑3 (No. 333‑150669)). Second Supplemental Indenture, dated as of October 27, 2009, between Black Hills Power, Inc. and The Bank of New York Mellon (filed as Exhibit 4.21 to the Registrant’s Post-Effective Amendment No. 2 to the Registrant’s Registration Statement on Form S-3 (No. 333-150669)).
Exhibit 4.3*	Form of Stock Certificate for Common Stock, Par Value $1.00 Per Share (filed as Exhibit 4.2 to the Registrant’s Form 10-K for 2000).
Exhibit 31.1	Certification of Chief Executive Officer pursuant to Rule 13a - 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes - Oxley Act of 2002.
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Rule 13a - 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes - Oxley Act of 2002.
Exhibit 32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes - Oxley Act of 2002.
Exhibit 32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes - Oxley Act of 2002.
Exhibit 95	Mine Safety and Health Administration Safety Data.
Exhibit 101	Financial Statements for XBRL Format.

__________

* Previously filed as part of the filing indicated and incorporated by reference herein.

60

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 thereunto duly authorized.

BLACK HILLS CORPORATION

		/s/ David R. Emery
		David R. Emery, Chairman, President and
		Chief Executive Officer
		/s/ Anthony S. Cleberg
		Anthony S. Cleberg, Executive Vice President and
		Chief Financial Officer
Dated:	May 2, 2014

61

INDEX TO EXHIBITS

Exhibit Number	Description
Exhibit 3.1*	Restated Articles of Incorporation of the Registrant (filed as Exhibit 3 to the Registrant’s Form 10-K for 2004).
Exhibit 3.2*	Amended and Restated Bylaws of the Registrant dated January 28, 2010 (filed as Exhibit 3 to the Registrant’s Form 8-K filed on February 3, 2010).
Exhibit 4.1*	Indenture dated as of May 21, 2003 between the Registrant and Wells Fargo Bank, National Association (as successor to LaSalle Bank National Association), as Trustee (filed as Exhibit 4.1 to the Registrant’s Form 10-Q for the quarterly period ended June 30, 2003). First Supplemental Indenture dated as of May 21, 2003 (filed as Exhibit 4.2 to the Registrant’s Form 10-Q for the quarterly period ended June 30, 2003). Second Supplemental Indenture dated as of May 14, 2009 (filed as Exhibit 4 to the Registrant’s Form 8-K filed on May 14, 2009). Third Supplemental Indenture dated as of July 16, 2010 (filed as Exhibit 4 to the Registrant’s Form 8-K filed on July 15, 2010). Fourth Supplemental Indenture dated as of November 19, 2013 (filed as Exhibit 4 to the Registrants’ Form 8-K filed on November 18, 2013).
Exhibit 4.2*	Restated and Amended Indenture of Mortgage and Deed of Trust of Black Hills Corporation (now called Black Hills Power, Inc.) dated as of September 1, 1999 (filed as Exhibit 4.19 to the Registrant’s Post-Effective Amendment No. 1 to the Registrant’s Registration Statement on Form S-3 (No. 333-150669)). First Supplemental Indenture, dated as of August 13, 2002, between Black Hills Power, Inc. and The Bank of New York Mellon (as successor to JPMorgan Chase Bank), as Trustee (filed as Exhibit 4.20 to the Registrant’s Post-Effective Amendment No. 1 to the Registrant’s Registration Statement on Form S‑3 (No. 333‑150669)). Second Supplemental Indenture, dated as of October 27, 2009, between Black Hills Power, Inc. and The Bank of New York Mellon (filed as Exhibit 4.21 to the Registrant’s Post-Effective Amendment No. 2 to the Registrant’s Registration Statement on Form S-3 (No. 333-150669)).
Exhibit 4.3*	Form of Stock Certificate for Common Stock, Par Value $1.00 Per Share (filed as Exhibit 4.2 to the Registrant’s Form 10-K for 2000).
Exhibit 31.1	Certification of Chief Executive Officer pursuant to Rule 13a - 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes - Oxley Act of 2002.
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Rule 13a - 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes - Oxley Act of 2002.
Exhibit 32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes - Oxley Act of 2002.
Exhibit 32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes - Oxley Act of 2002.
Exhibit 95	Mine Safety and Health Administration Safety Data.
Exhibit 101	Financial Statements for XBRL Format.

__________

* Previously filed as part of the filing indicated and incorporated by reference herein.

62

EX-31.1

Exhibit 31.1

CERTIFICATION

I, David R. Emery, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q of Black Hills Corporation;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.
5.	The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 2, 2014
		/S/ DAVID R. EMERY
		David R. Emery
		Chairman, President and
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Anthony S. Cleberg, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q of Black Hills Corporation;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.
5.	The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 2, 2014
		/S/ ANTHONY S. CLEBERG
		Anthony S. Cleberg
		Executive Vice President and
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Black Hills Corporation (the “Company”) on Form 10-Q for the period ended March 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David R. Emery, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1)	The Report fully complies with the requirements of Section 13 (a) or 15 (d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 2, 2014
		/S/ DAVID R. EMERY
		David R. Emery
		Chairman, President and
		Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Black Hills Corporation (the “Company”) on Form 10-Q for the period ended March 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Anthony S. Cleberg, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1)	The Report fully complies with the requirements of Section 13 (a) or 15 (d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 2, 2014
		/S/ ANTHONY S. CLEBERG
		Anthony S. Cleberg
		Executive Vice President and
		Chief Financial Officer

EX-95

Exhibit 95

Information concerning mine safety violations or other regulatory matters required by Sections 1503(a) of Dodd-Frank is included below.

Mine Safety and Health Administration Safety Data

Safety is a core value at Black Hills Corporation and at each of its subsidiary operations. We have in place a comprehensive safety program that includes extensive health and safety training for all employees, site inspections, emergency response preparedness, crisis communications training, incident investigation, regulatory compliance training and process auditing, as well as an open dialogue between all levels of employees. The goals of our processes are to eliminate exposure to hazards in the workplace, ensure that we comply with all mine safety regulations, and support regulatory and industry efforts to improve the health and safety of our employees along with the industry as a whole.

Under the recently enacted Dodd-Frank Act, each operator of a coal or other mine is required to include certain mine safety results in its periodic reports filed with the SEC. Our mining operation, consisting of Wyodak Coal Mine, is subject to regulation by the federal Mine Safety and Health Administration ("MSHA") under the Federal Mine Safety and Health Act of 1977 (the “Mine Act”). Below we present the following information regarding certain mining safety and health matters for the three month period ended March 31, 2014. In evaluating this information, consideration should be given to factors such as: (i) the number of citations and orders will vary depending on the size of the coal mine, (ii) the number of citations issued will vary from inspector to inspector and mine to mine, and (iii) citations and orders can be contested and appealed, and in that process, are often reduced in severity and amount, and are sometimes dismissed. The information presented includes:

• Total number of violations of mandatory health and safety standards that could significantly and substantially contribute to the cause and effect of a coal or other mine safety or health hazard under section 104 of the Mine Act for which we have received a citation from MSHA;

• Total number of orders issued under section 104(b) of the Mine Act;

• Total number of citations and orders for unwarrantable failure of the mine operator to comply with mandatory health and safety standards under section 104(d) of the Mine Act;

• Total number of imminent danger orders issued under section 107(a) of the Mine Act; and

• Total dollar value of proposed assessments from MSHA under the Mine Act.

The table below sets forth the total number of citations and/or orders issued by MSHA to WRDC under the indicated provisions of the Mine Act, together with the total dollar value of proposed MSHA assessments received during the three months ended March 31, 2014 and legal actions pending before the Federal Mine Safety and Health Review Commission, together with the Administrative Law Judges thereof, for WRDC, our only mining complex. All citations were abated within 24 hours of issue.

Mine/ MSHA

Mine Act Section 104 S&S Citations issued during three months ended

Mine Act Section 104(b)

Mine Act Section 104(d) Citations and

Mine Act Section 110(b)(2)

Mine Act Section 107(a) Imminent Danger

Total Dollar Value of Proposed MSHA

Total Number of Mining Related

Received Notice of Potential to Have Pattern Under

Legal Actions Pending as of Last Day of

Legal Actions Initiated During

Legal Actions Resolved During

Identification Number

March 31, 2014

Orders (#)

Orders (#)

Violations (#)

Orders (#)

Assessments

Fatalities (#)

Section 104(e) (yes/no)

Period (#) (a)

Period (#)

Period (#)

Wyodak Coal Mine - 4800083

1

—

—

—

—

$

150

—

No

—

—

—

________________________

(a) The types of proceedings by class: (1) contests of citations and orders - none; (2) contests of proposed penalties - none; (3) complaints for compensation - none; (4) complaints of discharge, discrimination or interference under Section 105 of the Mine Act - none; (5) applications for temporary relief - none; and (6) appeals of judges' decisions or orders to the FMSHRC - none.

XML

Earnings Per Share Anti-dilutive shares (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares	46	40
Equity compensation [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares	46	40

XML

Other Comprehensive Income Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (18,589)	$ (36,224)	$ (17,422)	$ (35,488)
Other Comprehensive Income (Loss), Net of Tax	(1,167)	(736)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(8,611)	(16,906)	(7,133)	(15,713)
Other Comprehensive Income (Loss), Net of Tax	(1,478)	(1,193)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(9,978)	(19,318)	(10,289)	(19,775)
Other Comprehensive Income (Loss), Net of Tax	$ 311	$ 457

XML

Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 17,641		$ 7,841		$ 12,397
Restricted cash and equivalents	2		2		6,846
Notes payable	100,000		82,500		245,000
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	17,641		7,841		12,397
Restricted cash and equivalents	2		2		6,846
Notes payable	100,000		82,500		245,000
Long-term debt, including current maturities	1,396,949		1,396,948		1,041,114
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value	17,641	[1]	7,841	[1]	12,397	[1]
Restricted Cash and equivalents, Fair Value	2	[1]	2	[1]	6,846	[1]
Notes payable, Fair Value	100,000	[1]	82,500	[1]	245,000	[1]
Long-term debt, including current maturities, Fair Value	$ 1,541,727	[2]	$ 1,491,422	[2]	$ 1,208,909	[2]

[1] Carrying value approximates fair value due to either the short-term length of maturity or variable interest rates that approximate prevailing market rates, and therefore is classified in Level 1 in the fair value hierarchy.

[2] Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy.

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Business Segment Information Information Relating to Segment Statement of Income (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenue, Net	$ 460,169,000	$ 380,671,000
Net Income (Loss)	48,118,000	43,197,000
Mark-to-market gain (loss) on certain interest rate swaps, net of tax		4,800,000
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	(33,966,000)	(31,058,000)
Net Income (Loss)	0	3,000
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Net	0	0
Net Income (Loss)	330,000	5,699,000	[1]
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue, Net	0	0
Electric Utilities [Member]
Segment Reporting Information [Line Items]
Revenue, Net	178,095,000	158,483,000
Net Income (Loss)	14,575,000	12,356,000
Electric Utilities [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	4,007,000	4,147,000
Gas Utilities [Member]
Segment Reporting Information [Line Items]
Revenue, Net	259,337,000	199,812,000
Net Income (Loss)	24,698,000	18,483,000
Gas Utilities [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	0	0
Power Generation [Member]
Segment Reporting Information [Line Items]
Revenue, Net	1,269,000	1,022,000
Net Income (Loss)	8,073,000	5,644,000
Power Generation [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	21,079,000	19,338,000
Coal Mining [Member]
Segment Reporting Information [Line Items]
Revenue, Net	6,618,000	6,010,000
Net Income (Loss)	2,464,000	1,065,000
Coal Mining [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	8,880,000	7,573,000
Oil and Gas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	14,850,000	15,344,000
Net Income (Loss)	(2,022,000)	(53,000)
Oil and Gas [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 0	$ 0

[1] income (loss) includes a $4.8 million after-tax non-cash mark-to-market gain for the three months ended March 31, 2013 on certain interest rate swaps.

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Earnings Per Share Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share Reconciliation [Table Text Block]

A reconciliation of share amounts used to compute Earnings (loss) per share in the accompanying Condensed Consolidated Statements of Income (loss) is as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Net Income (loss) available for common stock	$	48,118	$	43,197
Weighted average shares - basic	44,330		44,053
Dilutive effect of:
Equity compensation	224		259
Weighted average shares - diluted	44,554		44,312

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following outstanding securities were not included in the computation of diluted earnings per share as their effect would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2014	2013
Equity compensation	46	40
Anti-dilutive shares	46	40

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Employee Benefit Plans Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Pension Plan, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,362	$ 1,608
Interest cost	3,963	3,825
Expected return on plan assets	(4,516)	(4,654)
Prior service cost (benefit)	16	16
Net loss (gain)	1,201	3,062
Net periodic benefit cost	2,026	3,857
Pension and Other Postretirement Benefit Contributions [Abstract]
Contributions by Employer	0
Estimated Future Employer Contributions in Current Fiscal Year	0
Estimated Future Employer Contributions in Next Fiscal Year	2,806
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	425	419
Interest cost	479	417
Expected return on plan assets	(21)	(20)
Prior service cost (benefit)	(107)	(125)
Net loss (gain)	40	121
Net periodic benefit cost	816	812
Pension and Other Postretirement Benefit Contributions [Abstract]
Contributions by Employer	956
Estimated Future Employer Contributions in Current Fiscal Year	2,868
Estimated Future Employer Contributions in Next Fiscal Year	3,822
Other Pension Plan, Postretirement or Supplemental Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	374	348
Interest cost	362	332
Prior service cost (benefit)	1	1
Net loss (gain)	124	198
Net periodic benefit cost	861	879
Pension and Other Postretirement Benefit Contributions [Abstract]
Contributions by Employer	373
Estimated Future Employer Contributions in Current Fiscal Year	1,118
Estimated Future Employer Contributions in Next Fiscal Year	$ 1,494

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Risk Management Activities (Details) (USD $)	3 Months Ended				12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
Derivative [Line Items]
Credit Exposure, Non-Investment Grade Company	$ 800,000
Derivative assets, current	1,846,000		1,630,000		717,000
Derivative assets, non-current	0		0		0
Derivative liabilities, current	3,498,000		89,112,000		3,474,000
Derivative liabilities, non-current	4,805,000		15,237,000		5,614,000
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative liabilities, current	3,498,000		6,982,000		3,474,000
Derivative liabilities, non-current	4,805,000		15,237,000		5,614,000
Derivative, Notional Amount	75,000,000	[1]	150,000,000	[2]	75,000,000	[1]
Weighted Average Fixed Interest Rate	4.97%		5.04%		4.97%
Derivative, Remaining Maturity	2 years 9 months		3 years 9 months		3 years
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	(3,500,000)
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative liabilities, current			80,692,000
Derivative liabilities, non-current			0
Derivative, Notional Amount			250,000,000	[3]
Weighted Average Fixed Interest Rate			5.67%
Derivative, Remaining Maturity			0 years 9 months
Oil and Gas [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(3,200,000)
Power Generation [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount			75,000,000
Natural Gas, Distribution [Member] | Utilities Group [Member]
Derivative [Line Items]
Derivative assets, current	1,846,000		522,000		662,000
Derivative assets, non-current	0		0		0
Derivative liabilities, non-current	0		0		0
Net Unrealized (Gain) Loss Included in Regulatory assets or Regulatory liabilities	4,420,000		4,315,000		7,567,000
Natural Gas, Distribution [Member] | Utilities Group [Member] | Future [Member] | Purchase Contract [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	16,140,000		13,180,000		17,930,000
Derivative, Remaining Maturity	80 months		80 months		84 months
Natural Gas, Distribution [Member] | Utilities Group [Member] | Commodity Option [Member] | Purchase Contract [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	1,320,000		440,000		3,890,000
Derivative, Remaining Maturity	12 months		5 months		8 months
Natural Gas, Distribution [Member] | Utilities Group [Member] | Basis Swap [Member] | Purchase Contract [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	14,575,000		11,350,000		14,785,000
Derivative, Remaining Maturity	69 months		69 months		60 months
Crude Oil [Member] | Oil and Gas [Member] | Swaps and Options [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	442,500	[4]	522,000	[4]	412,500	[4]
Maximum terms in months - Hedged in Cash Flow Hedge	1 month	[5]	9 months	[5]	3 months	[5]
Derivative assets, current	0		821,000		55,000
Derivative assets, non-current	0		0		0
Derivative liabilities, current	0		250,000		0
Derivative liabilities, non-current	0		0		0
Natural Gas [Member] | Oil and Gas [Member] | Swap [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	8,296,250	[4]	10,633,000	[4]	7,082,500	[4]
Maximum terms in months - Hedged in Cash Flow Hedge	1 month	[5]	6 months	[5]	1 month	[5]
Derivative assets, current	0		287,000		0
Derivative assets, non-current	0		0		0
Derivative liabilities, current	0		1,188,000		0
Derivative liabilities, non-current	0		0		0
Corporate, Non-Segment [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 75,000,000

[1] These swaps are designated to borrowings on our Revolving Credit Facility, and are priced using three-month LIBOR, matching the floating portion of the related swaps.

[2] At March 31, 2013, $75 million of these interest rate swaps were designated to borrowings on our Revolving Credit Facility and $75 million were designated to borrowings on our project financing debt at Black Hills Wyoming. These swaps are priced using three-month LIBOR, matching the floating portion of the related debt. The portion of the swaps that were designated to Black Hills Wyoming were settled during the fourth quarter of 2013 upon repayment of the Black Hills Wyoming project financing.

[3] These swaps were settled during the fourth quarter of 2013.

[4] Crude oil in Bbls, natural gas in MMBtus.

[5] Refers to the term of the derivative instrument. Assets and liabilities are classified as current/non-current based on the term of the hedged transaction and the corresponding settlement of the derivative instrument.

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Materials, Supplies and Fuel (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Inventory, Net [Abstract]
Materials and supplies	$ 50,727	$ 50,196	$ 50,401
Fuel - Electric Utilities	7,218	6,213	8,445
Natural gas in storage held for distribution	8,242	32,069	5,343
Total materials, supplies and fuel	$ 66,187	$ 88,478	$ 64,189

XML

Commitments and Contingencies Legal Proceedings (Details) (Electric Utilities [Member], Loss from Catastrophes [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Electric Utilities [Member] | Loss from Catastrophes [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 16
Insurance Coverage Deductible Per Occurrence	$ 1.0

XML

Other Comprehensive Income Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 17,860	$ 23,672
Revenue	460,169	380,671
Utilities - Operating and Maintenance	71,227	65,690
Non-regulated energy operations and maintenance	22,332	21,329
Income (loss) before earnings (loss) of unconsolidated subsidiaries and income taxes	73,485	64,860
Income tax benefit (expense)	(25,366)	(21,577)
Cash Flow Hedging [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before earnings (loss) of unconsolidated subsidiaries and income taxes	1,205	704
Income tax benefit (expense)	(425)	(236)
Net income (loss) available for common stock	780	468
Cash Flow Hedging [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Interest Rate Contract [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense	894	1,796
Cash Flow Hedging [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Commodity Contract [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Revenue	311	(1,092)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Utilities - Operating and Maintenance	(25)	(31)
Non-regulated energy operations and maintenance	12	(32)
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Utilities - Operating and Maintenance	157	421
Non-regulated energy operations and maintenance	85	274
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before earnings (loss) of unconsolidated subsidiaries and income taxes	229	632
Income tax benefit (expense)	(81)	(175)
Net income (loss) available for common stock	$ 148	$ 457

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Accounts Receivable

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Accounts Receivable [Text Block]

ACCOUNTS RECEIVABLE

Following is a summary of Accounts receivable, net included in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2014	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	53,733	$	20,063	$	(690	)	$	73,106
Gas Utilities	77,982		35,791		(814		)	112,959
Power Generation	1,340		—		—			1,340
Coal Mining	2,616		—		—			2,616
Oil and Gas	10,920		—		(13		)	10,907
Corporate	2,697		—		—			2,697
Total	$	149,288	$	55,854	$	(1,517	)	$	203,625

	Accounts		Unbilled		Less Allowance for			Accounts
December 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	52,437	$	23,823	$	(666	)	$	75,594
Gas Utilities	49,162		41,195		(558		)	89,799
Power Generation	1,722		—		—			1,722
Coal Mining	1,711		—		—			1,711
Oil and Gas	8,156		—		(13		)	8,143
Corporate	604		—		—			604
Total	$	113,792	$	65,018	$	(1,237	)	$	177,573

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	47,896	$	21,591	$	(623	)	$	68,864
Gas Utilities	59,024		28,439		(751		)	86,712
Power Generation	3		—		—			3
Coal Mining	1,857		—		—			1,857
Oil and Gas	10,340		—		(19		)	10,321
Corporate	1,026		—		—			1,026
Total	$	120,146	$	50,030	$	(1,393	)	$	168,783

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Risk Management Activities Hedging Activities (Details) (Cash Flow Hedging [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)	$ (3,564)	$ (2,778)
Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)	(1,205)	(704)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	0	0
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)	(91)	(19)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	0	0
Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)	(894)	(1,796)
Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)	(3,473)	(2,759)
Commodity Contract [Member] | Sales Revenue, Goods, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)	(311)	1,092
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	$ 0	$ 0

XML

Fair Value of Financial Instruments Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments [Table Text Block]

The estimated fair values of our financial instruments, excluding derivatives which are presented in Note 9, were as follows (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cash and cash equivalents (a)	$	17,641	$	17,641	$	7,841	$	7,841	$	12,397	$	12,397
Restricted cash and equivalents (a)	$	2	$	2	$	2	$	2	$	6,846	$	6,846
Notes payable (a)	$	100,000	$	100,000	$	82,500	$	82,500	$	245,000	$	245,000
Long-term debt, including current maturities (b)	$	1,396,949	$	1,541,727	$	1,396,948	$	1,491,422	$	1,041,114	$	1,208,909

__________

(a) Carrying value approximates fair value due to either the short-term length of maturity or variable interest rates that approximate prevailing market rates, and therefore is classified in Level 1 in the fair value hierarchy.

(b) Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy.

XML

Fair Value Measurements Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Schedule of Fair Value Hierarchy, Measured on Recurring Basis [Table Text Block]

The following tables set forth by level within the fair value hierarchy our gross assets and gross liabilities and related offsetting as permitted by GAAP that were accounted for at fair value on a recurring basis for derivative instruments. A discussion of fair value of financial instruments is included in Note 10:

	As of March 31, 2014
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		7		—		(7		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		490		—		(490		)	—
Commodity derivatives — Utilities	—		3,226		—		(1,380		)	1,846
Total	$	—	$	3,723	$	—	$	(1,877	)	$	1,846
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,983		—		(1,983		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		2,114		—		(2,114		)	—
Commodity derivatives — Utilities	—		6,919		—		(6,919		)	—
Interest rate swaps	—		8,303		—		—			8,303
Total	$	—	$	19,319	$	—	$	(11,016	)	$	8,303

	As of December 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		130		—		(75		)	55
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		815		—		(815		)	—
Commodity derivatives —Utilities	—		3,030		—		(2,368		)	662
Total	$	—	$	3,975	$	—	$	(3,258	)	$	717
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,229		—		(1,229		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		531		—		(531		)	—
Commodity derivatives — Utilities	—		9,100		—		(9,100		)	—
Interest rate swaps	—		9,088		—		—			9,088
Total	$	—	$	19,948	$	—	$	(10,860	)	$	9,088

	As of March 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	71	$	—	$	(11	)	$	60
Basis Swaps -- Oil	—		836		—		(75		)	761
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		435		—		(148		)	287
Commodity derivatives — Utilities	—		1,897		—		(1,375		)	522
Total	$	—	$	3,239	$	—	$	(1,609	)	$	1,630
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	396	$	—	$	(204	)	$	192
Basis Swaps -- Oil	—		670		—		(612		)	58
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		3,216		—		(2,028		)	1,188
Commodity derivatives — Utilities	—		5,862		—		(5,862		)	—
Interest rate swaps	—		108,871		—		(5,960		)	102,911
Total	$	—	$	119,015	$	—	$	(14,666	)	$	104,349

Schedule of Derivative Instruments Balance Sheet Location [Table Text Block]

The following tables present the fair value and balance sheet classification of our derivative instruments (in thousands):

As of March 31, 2014
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	30	$	—
Commodity derivatives	Derivative assets — non-current	466		—
Commodity derivatives	Derivative liabilities — current	—		3,187
Commodity derivatives	Derivative liabilities — non-current	—		910
Interest rate swaps	Derivative liabilities — current	—		3,498
Interest rate swaps	Derivative liabilities — non-current	—		4,805
Total derivatives designated as hedges		$	496	$	12,400
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	1,846	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		5,539
Total derivatives not designated as hedges		$	1,846	$	5,539

As of December 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	248	$	—
Commodity derivatives	Derivative assets — non-current	698		—
Commodity derivatives	Derivative liabilities — current	—		1,541
Commodity derivatives	Derivative liabilities — non-current	—		219
Interest rate swaps	Derivative liabilities — current	—		3,474
Interest rate swaps	Derivative liabilities — non-current	—		5,614
Total derivatives designated as hedges		$	946	$	10,848
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	662	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		6,732
Total derivatives not designated as hedges		$	662	$	6,732

As of March 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	832	$	—
Commodity derivatives	Derivative assets — non-current	206		—
Commodity derivatives	Derivative liabilities — current	—		3,110
Commodity derivatives	Derivative liabilities — non-current	—		1,114
Interest rate swaps	Derivative liabilities — current	—		6,982
Interest rate swaps	Derivative liabilities — non-current	—		15,237
Total derivatives designated as hedges		$	1,038	$	26,443
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	2,201	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		58
Commodity derivatives	Derivative liabilities — non-current	—		5,862
Interest rate swaps	Derivative liabilities — current	—		86,652
Interest rate swaps	Derivative liabilities — non-current	—		—
Total derivatives not designated as hedges		$	2,201	$	92,572

XML

Fair Value Measurements Fair Value Hierarchy (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	0	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0	0
Liabilities, Fair Value Disclosure	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas, Distribution [Member] | Utilities Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,723	3,975	3,239
Liabilities, Fair Value Disclosure	19,319	19,948	119,015
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	8,303	9,088	108,871
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	71
Derivative Liabilities	0	0	396
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	7	130	836
Derivative Liabilities	1,983	1,229	670
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	490	815	435
Derivative Liabilities	2,114	531	3,216
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas, Distribution [Member] | Utilities Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	3,226	3,030	1,897
Derivative Liabilities	6,919	9,100	5,862
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0	0
Liabilities, Fair Value Disclosure	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas, Distribution [Member] | Utilities Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	(1,877)	(3,258)	(1,609)
Liabilities, Fair Value Disclosure	(11,016)	(10,860)	(14,666)
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	(5,960)
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	(11)
Derivative Liabilities	0	0	(204)
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	(7)	(75)	(75)
Derivative Liabilities	(1,983)	(1,229)	(612)
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	(490)	(815)	(148)
Derivative Liabilities	(2,114)	(531)	(2,028)
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas, Distribution [Member] | Utilities Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	(1,380)	(2,368)	(1,375)
Derivative Liabilities	(6,919)	(9,100)	(5,862)
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	1,846	717	1,630
Liabilities, Fair Value Disclosure	8,303	9,088	104,349
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	8,303	9,088	102,911
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	60
Derivative Liabilities	0	0	192
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Crude Oil [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	55	761
Derivative Liabilities	0	0	58
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Commodity Option [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Derivative Liabilities	0	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Basis Swap [Member] | Oil and Gas [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	287
Derivative Liabilities	0	0	1,188
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Natural Gas, Distribution [Member] | Utilities Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	1,846	662	522
Derivative Liabilities	$ 0	$ 0	$ 0

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Other Comprehensive Income Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2014

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of the reclassification adjustments, net of tax, included in Other Comprehensive Income (Loss) for the periods were as follows (in thousands):

	Location on the Condensed Consolidated Statements of Income (Loss)	Amount Reclassified from AOCI
		Three Months Ended
		March 31, 2014			March 31, 2013
Gains (losses) on cash flow hedges:
Interest rate swaps	Interest expense	$	894		$	1,796
Commodity contracts	Revenue	311			(1,092		)
		1,205			704
Income tax	Income tax benefit (expense)	(425		)	(236		)
Reclassification adjustments related to cash flow hedges, net of tax		$	780		$	468
Amortization of defined benefit plans:
Prior service cost	Utilities - Operations and maintenance	$	(25	)	$	(31	)
	Non-regulated energy operations and maintenance	12			(32		)
Actuarial gain (loss)	Utilities - Operations and maintenance	157			421
	Non-regulated energy operations and maintenance	85			274
		229			632
Income tax	Income tax benefit (expense)	(81		)	(175		)
Reclassification adjustments related to defined benefit plans, net of tax		$	148		$	457

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Balances by classification included within Accumulated other comprehensive income (loss) on the accompanying Condensed Consolidated Balance Sheets are as follows (in thousands):

	Derivatives Designated as Cash Flow Hedges			Employee Benefit Plans			Total
Balance as of December 31, 2012	$	(15,713	)	$	(19,775	)	$	(35,488	)
Other comprehensive income (loss), net of tax	(1,193		)	457			(736		)
Balance as of March 31, 2013	$	(16,906	)	$	(19,318	)	$	(36,224	)
Balance as of December 31, 2013	$	(7,133	)	$	(10,289	)	$	(17,422	)
Other comprehensive income (loss), net of tax	(1,478		)	311			(1,167		)
Balance as of March 31, 2014	$	(8,611	)	$	(9,978	)	$	(18,589	)

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Supplemental Cash Flow Information Supplmental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental Disclosures of Cash Flows [Table Text Block]

Supplemental disclosures of cash flow for the three months ended are as follows (in thousands):

	Three Months Ended
	March 31, 2014			March 31, 2013
Non-cash investing and financing activities from continuing operations—
Property, plant and equipment acquired with accrued liabilities	$	40,939		$	31,780
Increase (decrease) in capitalized assets associated with asset retirement obligations	$	(2,785	)	$	—
Cash (paid) refunded during the period for continuing operations—
Interest (net of amounts capitalized)	$	(11,452	)	$	(12,768	)
Income taxes, net	$	4		$	(4,656	)

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Business Segment Information

3 Months Ended

Mar. 31, 2014

Segment Reporting Information, Additional Information [Abstract]

Business Segment Disclosure [Text Block]

BUSINESS SEGMENT INFORMATION

Segment information and Corporate activities included in the accompanying Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	178,095	$	4,007		$	14,575
Gas	259,337		—			24,698
Non-regulated Energy:
Power Generation	1,269		21,079			8,073
Coal Mining	6,618		8,880			2,464
Oil and Gas	14,850		—			(2,022		)
Corporate activities	—		—			330
Inter-company eliminations	—		(33,966		)	—
Total	$	460,169	$	—		$	48,118

Three Months Ended March 31, 2013	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	158,483	$	4,147		$	12,356
Gas	199,812		—			18,483
Non-regulated Energy:
Power Generation	1,022		19,338			5,644
Coal Mining	6,010		7,573			1,065
Oil and Gas	15,344		—			(53		)
Corporate activities (a)	—		—			5,699
Inter-company eliminations	—		(31,058		)	3
Total	$	380,671	$	—		$	43,197

__________

(a) Net income (loss) includes a $4.8 million after-tax non-cash mark-to-market gain for the three months ended March 31, 2013 on certain interest rate swaps.

Segment information and Corporate balances included in the accompanying Condensed Consolidated Balance Sheets were as follows (in thousands):

Total Assets (net of inter-company eliminations) as of:	March 31, 2014		December 31, 2013		March 31, 2013
Utilities:
Electric (a)	$	2,572,616	$	2,525,947	$	2,367,014
Gas	842,660		805,617		752,468
Non-regulated Energy:
Power Generation (a)	90,643		95,692		115,708
Coal Mining	74,523		78,825		82,839
Oil and Gas	295,083		288,366		255,786
Corporate activities	89,439		80,731		112,771
Total assets	$	3,964,964	$	3,875,178	$	3,686,586

__________

(a) The PPA under which Black Hills Colorado IPP provides generation to support Colorado Electric customers from the Pueblo Airport Generation Station is accounted for as a capital lease. As such, assets owned by our Power Generation segment are recorded at Colorado Electric under accounting for a capital lease.

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Employee Benefit Plans Schedule Of Defined Benefit Plans Disclosure (Tables)

3 Months Ended

Mar. 31, 2014

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic benefit cost for the Defined Benefit Pension Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	1,362		$	1,608
Interest cost	3,963			3,825
Expected return on plan assets	(4,516		)	(4,654		)
Prior service cost	16			16
Net loss (gain)	1,201			3,062
Net periodic benefit cost	$	2,026		$	3,857

Non-pension Defined Benefit Postretirement Healthcare Plans

The components of net periodic benefit cost for the Non-pension Defined Benefit Postretirement Healthcare Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	425		$	419
Interest cost	479			417
Expected return on plan assets	(21		)	(20		)
Prior service cost (benefit)	(107		)	(125		)
Net loss (gain)	40			121
Net periodic benefit cost	$	816		$	812

Supplemental Non-qualified Defined Benefit and Defined Contribution Plans

The components of net periodic benefit cost for the Supplemental Non-qualified Defined Benefit and Defined Contribution Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Service cost	$	374	$	348
Interest cost	362		332
Prior service cost	1		1
Net loss (gain)	124		198
Net periodic benefit cost	$	861	$	879

Schedule of Defined Benefit Plans Contributions [Table Text Block]

Contributions and anticipated contributions are as follows (in thousands):

	Contributions Made		Additional
	Three Months Ended March 31, 2014		Contributions Anticipated for 2014		Contributions Anticipated for 2015
Defined Benefit Pension Plans	$	—	$	—	$	2,806
Non-pension Defined Benefit Postretirement Healthcare Plans	$	956	$	2,868	$	3,822
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans	$	373	$	1,118	$	1,494

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Notes Payable (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Line of Credit Facility [Line Items]
Notes payable	$ 100,000	$ 82,500	$ 245,000
Letters of Credit Outstanding	27,700	22,100	36,500
Loans Payable [Member]
Line of Credit Facility [Line Items]
Notes payable	0	0	150,000
Letters of Credit Outstanding	0	0	0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Notes payable	100,000	82,500	95,000
Letters of Credit Outstanding	$ 27,700	$ 22,100	$ 36,500
Debt Disclosure [Abstract]
Recourse Leverage Ratio	55.00%
Recourse Leverage Ratio, Maximum Allowed, Covenant	65.00%

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Commitments and Contingencies Dividend Restrictions (Details) (Utilities Group [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Utilities Group [Member]
Related Party Transaction [Line Items]
Restricted Net Assets for Subsidiaries	$ 94

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Condensed Statements of Income (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenue	$ 460,169	$ 380,671
Utilities -
Fuel, purchased power and cost of gas sold	230,468	168,173
Operations and maintenance	71,227	65,690
Non-regulated energy operations and maintenance	22,332	21,329
Depreciation, depletion and amortization	36,083	34,781
Taxes - property, production and severance	10,336	10,380
Other operating expenses	125	472
Total operating expenses	370,571	300,825
Operating income	89,598	79,846
Interest charges -
Interest expense incurred (including amortization of debt issuance costs, premiums and discounts and realized settlements on interest rate swaps)	(17,860)	(23,672)
Allowance for funds used during construction - borrowed	270	74
Capitalized interest	257	266
Unrealized gain (loss) on interest rate swaps, net	0	7,456
Interest income	390	285
Allowance for funds used during construction - equity	238	200
Other income (expense), net	592	405
Total other income (expense), net	(16,113)	(14,986)
Income (loss) before earnings (loss) of unconsolidated subsidiaries and income taxes	73,485	64,860
Equity in earnings (loss) of unconsolidated subsidiaries	(1)	(86)
Income tax benefit (expense)	(25,366)	(21,577)
Net income (loss) available for common stock	$ 48,118	$ 43,197
Earnings (loss) per share, Basic -
Total income (loss) per share, Basic	$ 1.09	$ 0.98
Earnings (loss) per share, Diluted -
Total income (loss) per share, Diluted	$ 1.08	$ 0.97
Weighted Average Number of Shares Outstanding:
Basic	44,330	44,053
Diluted	44,554	44,312
Dividends paid per share of common stock	$ 0.39	$ 0.38

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Fair Value Measurements Fair Value Measurements Balance Sheet Location (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	$ 496	$ 946	$ 1,038
Derivative Liability, Fair Value, Net	12,400	10,848	26,443
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	1,846	662	2,201
Derivative Liability, Fair Value, Net	5,539	6,732	92,572
Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Derivative Assets, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	30	248	832
Derivative Asset, Fair Value, Gross Liability	0	0	0
Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Derivative Assets, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	466	698	206
Derivative Asset, Fair Value, Gross Liability	0	0	0
Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Derivative Liabilities, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	3,187	1,541	3,110
Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Derivative Liabilities, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	910	219	1,114
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member] | Derivative Assets, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,846	662	2,201
Derivative Asset, Fair Value, Gross Liability	0	0	0
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member] | Derivative Assets, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0	0
Derivative Asset, Fair Value, Gross Liability	0	0	0
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member] | Derivative Liabilities, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	0	0	58
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member] | Derivative Liabilities, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	5,539	6,732	5,862
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Derivative Liabilities, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	3,498	3,474	6,982
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Derivative Liabilities, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset	0	0	0
Derivative Liability, Fair Value, Gross Liability	4,805	5,614	15,237
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] | Derivative Liabilities, Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset			0
Derivative Liability, Fair Value, Gross Liability			86,652
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] | Derivative Liabilities, Non-current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Asset			0
Derivative Liability, Fair Value, Gross Liability			$ 0

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Condensed Consoldiated Statement of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities:
Net income (loss) available for common stock	$ 48,118	$ 43,197
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	36,083	34,781
Deferred financing cost amortization	568	1,095
Stock compensation	3,716	3,778
Unrealized (gain) loss on interest rate swaps, net	0	(7,456)
Deferred income taxes	25,953	20,541
Employee benefit plans	3,703	5,548
Other adjustments, net	5,190	7,087
Changes in certain operating assets and liabilities:
Materials, supplies and fuel	22,291	18,519
Accounts receivable, unbilled revenue and other operating assets	(78,576)	(5,323)
Accounts payable and other current liabilities	29,074	(13,637)
Other operating activities, net	1,978	1,102
Net cash provided by operating activities	98,098	109,232
Investing activities:
Property, plant and equipment additions	(83,609)	(63,939)
Other investing activities	(3,220)	1,030
Net cash provided by (used in) investing activities	(86,829)	(62,909)
Financing activities:
Dividends paid on common stock	(17,399)	(16,882)
Common stock issued	881	2,426
Short-term borrowings - issuances	86,800	78,500
Short-term borrowings - repayments	(69,300)	(110,500)
Long-term debt - repayments	0	(1,737)
Other financing activities	(2,451)	(1,195)
Net cash provided by (used in) financing activities	(1,469)	(49,388)
Net change in cash and cash equivalents	9,800	(3,065)
Cash and Cash Equivalents:
Cash and cash equivalents, beginning of period	7,841	15,462
Cash and cash equivalents, end of period	$ 17,641	$ 12,397

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Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	$ (1,517)	$ (1,237)	$ (1,393)
Accounts receivable, net	203,625	177,573	168,783
Corporate, Non-Segment [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	0	0	0
Accounts receivable, net	2,697	604	1,026
Electric Utilities [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	(690)	(666)	(623)
Accounts receivable, net	73,106	75,594	68,864
Gas Utilities [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	(814)	(558)	(751)
Accounts receivable, net	112,959	89,799	86,712
Power Generation [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	0	0	0
Accounts receivable, net	1,340	1,722	3
Coal Mining [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	0	0	0
Accounts receivable, net	2,616	1,711	1,857
Oil and Gas [Member]
Accounts Receivable [Line Items]
Allowance for Doubtful Accounts Receivable	(13)	(13)	(19)
Accounts receivable, net	10,907	8,143	10,321
Billed Revenues [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	149,288	113,792	120,146
Billed Revenues [Member] | Corporate, Non-Segment [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	2,697	604	1,026
Billed Revenues [Member] | Electric Utilities [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	53,733	52,437	47,896
Billed Revenues [Member] | Gas Utilities [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	77,982	49,162	59,024
Billed Revenues [Member] | Power Generation [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	1,340	1,722	3
Billed Revenues [Member] | Coal Mining [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	2,616	1,711	1,857
Billed Revenues [Member] | Oil and Gas [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	10,920	8,156	10,340
Unbilled Revenues [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	55,854	65,018	50,030
Unbilled Revenues [Member] | Corporate, Non-Segment [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	0	0	0
Unbilled Revenues [Member] | Electric Utilities [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	20,063	23,823	21,591
Unbilled Revenues [Member] | Gas Utilities [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	35,791	41,195	28,439
Unbilled Revenues [Member] | Power Generation [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	0	0	0
Unbilled Revenues [Member] | Coal Mining [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	0	0	0
Unbilled Revenues [Member] | Oil and Gas [Member]
Accounts Receivable [Line Items]
Accounts Receivable, Trade	$ 0	$ 0	$ 0

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Accounts Receivable Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Schedule of Accounts Receivable [Table Text Block]

Following is a summary of Accounts receivable, net included in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2014	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	53,733	$	20,063	$	(690	)	$	73,106
Gas Utilities	77,982		35,791		(814		)	112,959
Power Generation	1,340		—		—			1,340
Coal Mining	2,616		—		—			2,616
Oil and Gas	10,920		—		(13		)	10,907
Corporate	2,697		—		—			2,697
Total	$	149,288	$	55,854	$	(1,517	)	$	203,625

	Accounts		Unbilled		Less Allowance for			Accounts
December 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	52,437	$	23,823	$	(666	)	$	75,594
Gas Utilities	49,162		41,195		(558		)	89,799
Power Generation	1,722		—		—			1,722
Coal Mining	1,711		—		—			1,711
Oil and Gas	8,156		—		(13		)	8,143
Corporate	604		—		—			604
Total	$	113,792	$	65,018	$	(1,237	)	$	177,573

	Accounts		Unbilled		Less Allowance for			Accounts
March 31, 2013	Receivable, Trade		Revenue		Doubtful Accounts			Receivable, net
Electric Utilities	$	47,896	$	21,591	$	(623	)	$	68,864
Gas Utilities	59,024		28,439		(751		)	86,712
Power Generation	3		—		—			3
Coal Mining	1,857		—		—			1,857
Oil and Gas	10,340		—		(19		)	10,321
Corporate	1,026		—		—			1,026
Total	$	120,146	$	50,030	$	(1,393	)	$	168,783

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Regulatory Assets and Liabilities Regulatory Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets	$ 201,119		$ 162,648		$ 204,541
Regulatory Liabilities	117,376		120,156		145,593
Deferred energy and fuel cost adjustments
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities Amortization Period (in years)	P1Y
Regulatory Liabilities	6,485	[1]	11,708	[1]	21,463	[1]
Employee benefit plans
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities Amortization Period (in years)	P13Y
Regulatory Liabilities	34,355	[2]	34,431	[2]	60,214	[2]
Cost of removal
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities Amortization Period (in years)	P44Y
Regulatory Liabilities	67,640	[1]	64,970	[1]	56,517	[1]
Other regulatory liabilities
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Liabilities Amortization Period (in years)	P25Y
Regulatory Liabilities	8,896	[2]	9,047	[2]	7,399	[2]
Deferred energy and fuel cost adjustments
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P1Y
Regulatory Assets	23,935	[1]	16,775	[1]	16,815	[1]
Deferred gas cost adjustments and gas price derivatives
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P7Y
Regulatory Assets	42,925	[1]	12,366	[1]	8,264	[1]
Allowance For Funds Used During Construction
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P45Y
Regulatory Assets	12,349	[3]	12,315	[3]	12,335	[3]
Employee benefit plans
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P13Y
Regulatory Assets	65,833	[2]	67,059	[2]	115,564	[2]
Environmental
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	subject to approval
Regulatory Assets	1,317	[1]	1,800	[1]	1,793	[1]
Asset retirement obligations
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P44Y
Regulatory Assets	3,271	[1]	3,266	[1]	3,252	[1]
Bond issue cost
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P24Y
Regulatory Assets	3,383	[1]	3,419	[1]	3,526	[1]
Renewable energy standard adjustment
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P5Y
Regulatory Assets	16,088	[1]	14,186	[1]	16,325	[1]
Flow through accounting
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P35Y
Regulatory Assets	21,837	[2]	20,916	[2]	17,308	[2]
Other regulatory assets
Schedule Of Regulatory Assets And Liabilities [Line Items]
Regulatory Assets Amortization Period (in years)	P15Y
Regulatory Assets	$ 10,181	[1]	$ 10,546	[1]	$ 9,359	[1]

[1] Recovery of costs, but not allowed a rate of return.

[2] In addition to recovery or repayment of costs, we are allowed a return on a portion of this amount or a reduction in rate base, respectively.

[3] In addition to recovery of costs, we are allowed a rate of return.

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Materials, Supplies and Fuel Materials, Supplies and Fuel (Tables)

3 Months Ended

Mar. 31, 2014

Inventory, Net [Abstract]

Materials, Supplies and Fuel [Table Text Block]

The following amounts by major classification are included in Materials, supplies and fuel in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014		December 31, 2013		March 31, 2013
Materials and supplies	$	50,727	$	50,196	$	50,401
Fuel - Electric Utilities	7,218		6,213		8,445
Natural gas in storage held for distribution	8,242		32,069		5,343
Total materials, supplies and fuel	$	66,187	$	88,478	$	64,189

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Management's Statement

3 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Management's Statement [Text Block]

MANAGEMENT’S STATEMENT

The unaudited Condensed Consolidated Financial Statements included herein have been prepared by Black Hills Corporation (together with our subsidiaries the “Company,” “us,” “we,” or “our”), pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations; however, we believe that the footnotes adequately disclose the information presented. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and the notes thereto included in our 2013 Annual Report on Form 10-K filed with the SEC.

We conduct our operations through the following reportable segments: Electric Utilities, Gas Utilities, Power Generation, Coal Mining and Oil and Gas. Our reportable segments are based on our method of internal reporting, which generally segregates the strategic business groups due to differences in products, services and regulation. All of our operations and assets are located within the United States.

Accounting methods historically employed require certain estimates as of interim dates. The information furnished in the accompanying Condensed Consolidated Financial Statements reflects all adjustments, including accruals, which are, in the opinion of management, necessary for a fair presentation of the March 31, 2014, December 31, 2013, and March 31, 2013 financial information and are of a normal recurring nature. Certain industries in which we operate are highly seasonal, and revenue from, and certain expenses for, such operations may fluctuate significantly among quarterly periods. Demand for electricity and natural gas is sensitive to seasonal cooling, heating and industrial load requirements, as well as changes in market price. In particular, the normal peak usage season for electric utilities is June through August while the normal peak usage season for gas utilities is November through March. Significant earnings variances can be expected between the Gas Utilities segment’s peak and off-peak seasons. Due to this seasonal nature, our results of operations for the three months ended March 31, 2014 and March 31, 2013, and our financial condition as of March 31, 2014, December 31, 2013, and March 31, 2013, are not necessarily indicative of the results of operations and financial condition to be expected as of or for any other period. All earnings per share amounts discussed refer to diluted earnings per share unless otherwise noted.

Recently Issued and Adopted Accounting Standards

We have implemented all new accounting pronouncements that are in effect and may impact our financial statements and do not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on our financial position, results of operations, or cash flows.

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Condensed Consolidated Statement of Comprehensive Income (unaudited) Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income (loss) available for common stock	$ 48,118	$ 43,197
Other comprehensive income (loss), net of tax:
Fair value adjustments on derivatives designated as cash flow hedges (net of tax (expense) benefit of $1,307 and $1,117, respectively)	(2,257)	(1,661)
Reclassification adjustments for cash flow hedges settled and included in net income (loss) (net of tax (expense) benefit of $(425) and $(236), respectively)	780	468
Benefit plan liability adjustments - net gain (loss) (net of tax of $2 and $0, respectively)	(2)	0
Benefit plan liability adjustments - prior service (costs) (net of tax of $(90) and $0, respectively)	164	0
Reclassification adjustments of benefit plan liability - prior service cost (net of tax of $4 and $17, respectively)	(9)	(46)
Reclassification adjustments of benefit plan liability - net gain (loss) (net of tax of $(85) and $(192), respectively)	157	503
Other comprehensive income (loss), net of tax	(1,167)	(736)
Comprehensive income (loss) available for common stock	46,951	42,461
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures
Fair value adjustment on derivatives designated as cash flow hedges, (tax) benefit	1,307	1,117
Reclassification adjustments of cash flow hedges settled and included in net income, (tax) benefit	(425)	(236)
Benefit plan liability adjustments net gain, (tax) benefit	2	0
Benefit plan liability adjustments prior service cost, (tax) benefit	(90)	0
Reclassification adjustment of benefit plan prior service cost included in net income, (tax) benefit	4	17
Reclassification adjustment of benefit plan liabilities actuarial gain (loss), (tax) benefit	$ (85)	$ (192)

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Other Comprehensive Income

3 Months Ended

Mar. 31, 2014

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Comprehensive Income (Loss) Note [Text Block]

OTHER COMPREHENSIVE INCOME (LOSS)

The components of the reclassification adjustments, net of tax, included in Other Comprehensive Income (Loss) for the periods were as follows (in thousands):

	Location on the Condensed Consolidated Statements of Income (Loss)	Amount Reclassified from AOCI
		Three Months Ended
		March 31, 2014			March 31, 2013
Gains (losses) on cash flow hedges:
Interest rate swaps	Interest expense	$	894		$	1,796
Commodity contracts	Revenue	311			(1,092		)
		1,205			704
Income tax	Income tax benefit (expense)	(425		)	(236		)
Reclassification adjustments related to cash flow hedges, net of tax		$	780		$	468
Amortization of defined benefit plans:
Prior service cost	Utilities - Operations and maintenance	$	(25	)	$	(31	)
	Non-regulated energy operations and maintenance	12			(32		)
Actuarial gain (loss)	Utilities - Operations and maintenance	157			421
	Non-regulated energy operations and maintenance	85			274
		229			632
Income tax	Income tax benefit (expense)	(81		)	(175		)
Reclassification adjustments related to defined benefit plans, net of tax		$	148		$	457

Balances by classification included within Accumulated other comprehensive income (loss) on the accompanying Condensed Consolidated Balance Sheets are as follows (in thousands):

	Derivatives Designated as Cash Flow Hedges			Employee Benefit Plans			Total
Balance as of December 31, 2012	$	(15,713	)	$	(19,775	)	$	(35,488	)
Other comprehensive income (loss), net of tax	(1,193		)	457			(736		)
Balance as of March 31, 2013	$	(16,906	)	$	(19,318	)	$	(36,224	)
Balance as of December 31, 2013	$	(7,133	)	$	(10,289	)	$	(17,422	)
Other comprehensive income (loss), net of tax	(1,478		)	311			(1,167		)
Balance as of March 31, 2014	$	(8,611	)	$	(9,978	)	$	(18,589	)

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Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	Apr. 29, 2014
Document Information [Line Items]
Entity Registrant Name	BLACK HILLS CORP /SD/
Entity Central Index Key	0001130464
Document Type	10-Q
Document Period End Date	Mar. 31, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		44,628,586
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No

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Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental Disclosure of Cash Flows [Text Block]

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION

Supplemental disclosures of cash flow for the three months ended are as follows (in thousands):

	Three Months Ended
	March 31, 2014			March 31, 2013
Non-cash investing and financing activities from continuing operations—
Property, plant and equipment acquired with accrued liabilities	$	40,939		$	31,780
Increase (decrease) in capitalized assets associated with asset retirement obligations	$	(2,785	)	$	—
Cash (paid) refunded during the period for continuing operations—
Interest (net of amounts capitalized)	$	(11,452	)	$	(12,768	)
Income taxes, net	$	4		$	(4,656	)

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Condensed Consolidated Balance Sheets (unaudited) Statement (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Current assets:
Cash and cash equivalents	$ 17,641	$ 7,841	$ 12,397
Restricted cash and equivalents	2	2	6,846
Accounts receivable, net	203,625	177,573	168,783
Materials, supplies and fuel	66,187	88,478	64,189
Derivative assets, current	1,846	717	1,630
Income tax receivable, net	1,826	1,460	0
Deferred income tax assets, net, current	25,780	18,889	38,196
Regulatory assets, current	62,946	24,451	23,422
Other current assets	24,563	25,877	28,260
Total current assets	404,416	345,288	343,723
Investments	16,916	16,697	16,545
Property, plant and equipment	4,318,194	4,259,445	3,977,704
Less accumulated depreciation and depletion	(1,298,398)	(1,269,148)	(1,210,833)
Total property, plant and equipment, net	3,019,796	2,990,297	2,766,871
Other assets:
Goodwill	353,396	353,396	353,396
Intangible assets, net	3,342	3,397	3,565
Derivative assets, non-current	0	0	0
Regulatory assets, non-current	138,173	138,197	181,119
Other assets, non-current	28,925	27,906	21,367
Total other assets, non-current	523,836	522,896	559,447
TOTAL ASSETS	3,964,964	3,875,178	3,686,586
Current liabilities:
Accounts payable	149,681	130,416	82,437
Accrued liabilities	145,973	151,277	140,230
Derivative liabilities, current	3,498	3,474	89,112
Accrued income tax, net	0	0	1,157
Regulatory liabilities, current	583	10,727	19,020
Notes payable	100,000	82,500	245,000
Current maturities of long-term debt	0	0	104,637
Total current liabilities	399,735	378,394	681,593
Long-term debt, net of current maturities	1,396,949	1,396,948	936,477
Deferred credits and other liabilities:
Deferred income tax liabilities, net, non-current	466,856	432,287	367,502
Derivative liabilities, non-current	4,805	5,614	15,237
Regulatory liabilities, non-current	116,793	109,429	126,573
Benefit plan liabilities	113,324	111,479	172,353
Other deferred credits and other liabilities	129,083	133,279	125,958
Total deferred credits and other liabilities	830,861	792,088	807,623
Commitments and contingencies (See Notes 7, 8, 13 and 14)
Stockholders’ equity:
Common stock $1 par value; 100,000,000 shares authorized; issued 44,666,953; 44,550,239; and 44,482,304 shares, respectively	44,667	44,550	44,482
Additional paid-in capital	742,016	742,344	735,000
Retained earnings	570,963	540,244	519,184
Treasury stock, at cost – 37,038; 50,877; and 41,606 shares, respectively	(1,638)	(1,968)	(1,549)
Accumulated other comprehensive income (loss)	(18,589)	(17,422)	(36,224)
Total stockholders’ equity	1,337,419	1,307,748	1,260,893
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,964,964	$ 3,875,178	$ 3,686,586

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Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

EARNINGS PER SHARE

A reconciliation of share amounts used to compute Earnings (loss) per share in the accompanying Condensed Consolidated Statements of Income (loss) is as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Net Income (loss) available for common stock	$	48,118	$	43,197
Weighted average shares - basic	44,330		44,053
Dilutive effect of:
Equity compensation	224		259
Weighted average shares - diluted	44,554		44,312

The following outstanding securities were not included in the computation of diluted earnings per share as their effect would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2014	2013
Equity compensation	46	40
Anti-dilutive shares	46	40

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Materials, Supplies and Fuel

3 Months Ended

Mar. 31, 2014

Inventory, Net [Abstract]

Materials, Supplies and Fuel [Text Block]

MATERIALS, SUPPLIES AND FUEL

The following amounts by major classification are included in Materials, supplies and fuel in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014		December 31, 2013		March 31, 2013
Materials and supplies	$	50,727	$	50,196	$	50,401
Fuel - Electric Utilities	7,218		6,213		8,445
Natural gas in storage held for distribution	8,242		32,069		5,343
Total materials, supplies and fuel	$	66,187	$	88,478	$	64,189

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Regulatory Assets and Liabilities Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2014

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets and Liabilities [Table Text Block]

We had the following regulatory assets and liabilities (in thousands):

	Maximum	As of		As of		As of
	Amortization (in years)	March 31, 2014		December 31, 2013		March 31, 2013
Regulatory assets
Deferred energy and fuel cost adjustments - current (a)	1	$	23,935	$	16,775	$	16,815
Deferred gas cost adjustments and gas price derivatives (a)	7	42,925		12,366		8,264
AFUDC (b)	45	12,349		12,315		12,335
Employee benefit plans (c)	13	65,833		67,059		115,564
Environmental (a)	subject to approval	1,317		1,800		1,793
Asset retirement obligations (a)	44	3,271		3,266		3,252
Bond issue cost (a)	24	3,383		3,419		3,526
Renewable energy standard adjustment (a)	5	16,088		14,186		16,325
Flow through accounting (c)	35	21,837		20,916		17,308
Other regulatory assets (a)	15	10,181		10,546		9,359
		$	201,119	$	162,648	$	204,541
Regulatory liabilities
Deferred energy and gas costs (a)	1	$	6,485	$	11,708	$	21,463
Employee benefit plans (c)	13	34,355		34,431		60,214
Cost of removal (a)	44	67,640		64,970		56,517
Other regulatory liabilities (c)	25	8,896		9,047		7,399
		$	117,376	$	120,156	$	145,593

__________

(a) Recovery of costs, but not allowed a rate of return.

(b) In addition to recovery of costs, we are allowed a rate of return.

(c) In addition to recovery or repayment of costs, we are allowed a return on a portion of this amount or a reduction in rate base, respectively.

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Employee Benefit Plans Employee Benefit Plans (Notes)

3 Months Ended

Mar. 31, 2014

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

EMPLOYEE BENEFIT PLANS

Defined Benefit Pension Plans

The components of net periodic benefit cost for the Defined Benefit Pension Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	1,362		$	1,608
Interest cost	3,963			3,825
Expected return on plan assets	(4,516		)	(4,654		)
Prior service cost	16			16
Net loss (gain)	1,201			3,062
Net periodic benefit cost	$	2,026		$	3,857

Non-pension Defined Benefit Postretirement Healthcare Plans

The components of net periodic benefit cost for the Non-pension Defined Benefit Postretirement Healthcare Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Service cost	$	425		$	419
Interest cost	479			417
Expected return on plan assets	(21		)	(20		)
Prior service cost (benefit)	(107		)	(125		)
Net loss (gain)	40			121
Net periodic benefit cost	$	816		$	812

Supplemental Non-qualified Defined Benefit and Defined Contribution Plans

The components of net periodic benefit cost for the Supplemental Non-qualified Defined Benefit and Defined Contribution Plans were as follows (in thousands):

	Three Months Ended March 31,
	2014		2013
Service cost	$	374	$	348
Interest cost	362		332
Prior service cost	1		1
Net loss (gain)	124		198
Net periodic benefit cost	$	861	$	879

Contributions

We anticipate that we will make contributions to the benefit plans during 2014 and 2015. Contributions to the Defined Benefit Pension Plans are cash contributions made directly to the Pension Plan Trust accounts. Contributions to the Healthcare and Supplemental Plan are made in the form of benefit payments. Contributions and anticipated contributions are as follows (in thousands):

	Contributions Made		Additional
	Three Months Ended March 31, 2014		Contributions Anticipated for 2014		Contributions Anticipated for 2015
Defined Benefit Pension Plans	$	—	$	—	$	2,806
Non-pension Defined Benefit Postretirement Healthcare Plans	$	956	$	2,868	$	3,822
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans	$	373	$	1,118	$	1,494

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Fair Value Measurements

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurement Disclosures [Text Block]

FAIR VALUE MEASUREMENTS

Derivative Financial Instruments

The accounting guidance for fair value measurements requires certain disclosures about assets and liabilities measured at fair value. This guidance establishes a hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the placement within the fair value hierarchy levels. We record transfers, if necessary, between levels at the end of the reporting period for all of our financial instruments. For additional information see Notes 1, 8 and 9 to the Consolidated Financial Statements included in our 2013 Annual Report on Form 10-K filed with the SEC.

Transfers into Level 3, if any, occur when significant inputs used to value the derivative instruments become less observable such as a significant decrease in the frequency and volume in which the instrument is traded, negatively impacting the availability of observable pricing inputs. Transfers out of Level 3, if any, occur when the significant inputs become more observable, such as when the time between the valuation date and the delivery date of a transaction becomes shorter, positively impacting the availability of observable pricing inputs.

Valuation Methodologies for Derivatives

Oil and Gas Segment:

• The commodity option contracts for our Oil and Gas segment are valued using the market approach and can include calls and puts. Fair value was derived using quoted prices from third-party brokers for similar instruments as to quantity and timing. The prices are then validated through third-party sources and therefore support Level 2 disclosure.

• The commodity basis swaps for our Oil and Gas segment are valued using the market approach with the instrument’s current forward price strip hedged for the same quantity and date and discounted based on the three-month LIBOR. We utilize observable inputs which support a Level 2 disclosure.

Utilities Segments:

• The commodity contracts for our Utilities Segments, valued using the market approach, include exchange-traded futures, options and basis swaps (Level 2) and OTC basis swaps (Level 3) for natural gas contracts. For Level 2 assets and liabilities, fair value was derived using broker quotes validated by the Chicago Mercantile Exchange pricing for similar instruments. For Level 3 assets and liabilities, fair value was derived using average price quotes from the OTC contract broker and an independent third-party market participant because these instruments are not traded on an exchange.

Corporate Activities:

• The interest rate swaps are valued using the market approach. We establish fair value by obtaining price quotes directly from the counterparty which are based on the floating three-month LIBOR curve for the term of the contract. The fair value obtained from the counterparty is then validated by utilizing a nationally recognized service that obtains observable inputs to compute fair value for the same instrument. In addition, the fair value for the interest rate swap derivatives includes a CVA component. The CVA considers the fair value of the interest rate swap and the probability of default based on the life of the contract. For the probability of a default component, we utilize observable inputs supporting a Level 2 disclosure by using our credit default spread, if available, or a generic credit default spread curve that takes into account our credit ratings.

Recurring Fair Value Measurements

There have been no significant transfers between Level 1 and Level 2 derivative balances. Amounts included in cash collateral and counterparty netting in the following tables represent the impact of legally enforceable master netting agreements that allow us to settle positive and negative positions, netting of asset and liability positions permitted in accordance with accounting standards for offsetting as well as cash collateral posted with the same counterparties.

The following tables set forth by level within the fair value hierarchy our gross assets and gross liabilities and related offsetting as permitted by GAAP that were accounted for at fair value on a recurring basis for derivative instruments. A discussion of fair value of financial instruments is included in Note 10:

	As of March 31, 2014
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		7		—		(7		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		490		—		(490		)	—
Commodity derivatives — Utilities	—		3,226		—		(1,380		)	1,846
Total	$	—	$	3,723	$	—	$	(1,877	)	$	1,846
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,983		—		(1,983		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		2,114		—		(2,114		)	—
Commodity derivatives — Utilities	—		6,919		—		(6,919		)	—
Interest rate swaps	—		8,303		—		—			8,303
Total	$	—	$	19,319	$	—	$	(11,016	)	$	8,303

	As of December 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		130		—		(75		)	55
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		815		—		(815		)	—
Commodity derivatives —Utilities	—		3,030		—		(2,368		)	662
Total	$	—	$	3,975	$	—	$	(3,258	)	$	717
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	—	$	—	$	—		$	—
Basis Swaps -- Oil	—		1,229		—		(1,229		)	—
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		531		—		(531		)	—
Commodity derivatives — Utilities	—		9,100		—		(9,100		)	—
Interest rate swaps	—		9,088		—		—			9,088
Total	$	—	$	19,948	$	—	$	(10,860	)	$	9,088

	As of March 31, 2013
	Level 1		Level 2		Level 3		Cash Collateral and Counterparty Netting			Total
	(in thousands)
Assets:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	71	$	—	$	(11	)	$	60
Basis Swaps -- Oil	—		836		—		(75		)	761
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		435		—		(148		)	287
Commodity derivatives — Utilities	—		1,897		—		(1,375		)	522
Total	$	—	$	3,239	$	—	$	(1,609	)	$	1,630
Liabilities:
Commodity derivatives — Oil and Gas
Options -- Oil	$	—	$	396	$	—	$	(204	)	$	192
Basis Swaps -- Oil	—		670		—		(612		)	58
Options -- Gas	—		—		—		—			—
Basis Swaps -- Gas	—		3,216		—		(2,028		)	1,188
Commodity derivatives — Utilities	—		5,862		—		(5,862		)	—
Interest rate swaps	—		108,871		—		(5,960		)	102,911
Total	$	—	$	119,015	$	—	$	(14,666	)	$	104,349

Fair Value Measures by Balance Sheet Classification

As required by accounting standards for derivatives and hedges, fair values within the following tables are presented on a gross basis reflecting the netting of asset and liability positions permitted in accordance with accounting standards for offsetting and under terms of our master netting agreements and the impact of legally enforceable master netting agreements that allow us to settle positive and negative positions; however, the amounts do not include net cash collateral on deposit in margin accounts at March 31, 2014, December 31, 2013, and March 31, 2013, to collateralize certain financial instruments, which are included in Derivative assets and/or Derivative liabilities. Therefore, the balances are not indicative of either our actual credit exposure or net economic exposure. Additionally, the amounts below will not agree with the amounts presented on our Condensed Consolidated Balance Sheets, nor will they correspond to the fair value measurements presented in Note 8.

The following tables present the fair value and balance sheet classification of our derivative instruments (in thousands):

As of March 31, 2014
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	30	$	—
Commodity derivatives	Derivative assets — non-current	466		—
Commodity derivatives	Derivative liabilities — current	—		3,187
Commodity derivatives	Derivative liabilities — non-current	—		910
Interest rate swaps	Derivative liabilities — current	—		3,498
Interest rate swaps	Derivative liabilities — non-current	—		4,805
Total derivatives designated as hedges		$	496	$	12,400
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	1,846	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		5,539
Total derivatives not designated as hedges		$	1,846	$	5,539

As of December 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	248	$	—
Commodity derivatives	Derivative assets — non-current	698		—
Commodity derivatives	Derivative liabilities — current	—		1,541
Commodity derivatives	Derivative liabilities — non-current	—		219
Interest rate swaps	Derivative liabilities — current	—		3,474
Interest rate swaps	Derivative liabilities — non-current	—		5,614
Total derivatives designated as hedges		$	946	$	10,848
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	662	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		—
Commodity derivatives	Derivative liabilities — non-current	—		6,732
Total derivatives not designated as hedges		$	662	$	6,732

As of March 31, 2013
	Balance Sheet Location	Fair Value of Asset Derivatives		Fair Value of Liability Derivatives
Derivatives designated as hedges:
Commodity derivatives	Derivative assets — current	$	832	$	—
Commodity derivatives	Derivative assets — non-current	206		—
Commodity derivatives	Derivative liabilities — current	—		3,110
Commodity derivatives	Derivative liabilities — non-current	—		1,114
Interest rate swaps	Derivative liabilities — current	—		6,982
Interest rate swaps	Derivative liabilities — non-current	—		15,237
Total derivatives designated as hedges		$	1,038	$	26,443
Derivatives not designated as hedges:
Commodity derivatives	Derivative assets — current	$	2,201	$	—
Commodity derivatives	Derivative assets — non-current	—		—
Commodity derivatives	Derivative liabilities — current	—		58
Commodity derivatives	Derivative liabilities — non-current	—		5,862
Interest rate swaps	Derivative liabilities — current	—		86,652
Interest rate swaps	Derivative liabilities — non-current	—		—
Total derivatives not designated as hedges		$	2,201	$	92,572

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Notes Payable

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Notes Payable and Long-term Debt [Text Block]

NOTES PAYABLE

We had the following notes payable outstanding in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit
Revolving Credit Facility	$	100,000	$	27,700	$	82,500	$	22,100	$	95,000	$	36,500
Term Loan due June 2013	—		—		—		—		150,000		—
Total	$	100,000	$	27,700	$	82,500	$	22,100	$	245,000	$	36,500

The term loan for $150 million was repaid on June 21, 2013.

Debt Covenants

Our Revolving Credit Facility and our new Term Loan require compliance with the following financial covenant at the end of each quarter:

	As of March 31, 2014	Covenant Requirement
Recourse Leverage Ratio	55%	Less than	65	%

As of March 31, 2014, we were in compliance with this covenant.

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Risk Management Activities

3 Months Ended

Mar. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Risk Managment Activities

RISK MANAGEMENT ACTIVITIES

Our activities in the regulated and non-regulated energy sectors expose us to a number of risks in the normal operation of our businesses. Depending on the activity, we are exposed to varying degrees of market risk and credit risk. To manage and mitigate these identified risks, we have adopted the Black Hills Corporation Risk Policies and Procedures as discussed in our 2013 Annual Report on Form 10-K.

Market Risk

Market risk is the potential loss that might occur as a result of an adverse change in market price or rate. We are exposed to the following market risks including, but not limited to:

• Commodity price risk associated with our natural long position in crude oil and natural gas reserves and production; and our fuel procurement for certain of our gas-fired generation assets; and

• Interest rate risk associated with our variable rate debt.

Credit Risk

Credit risk is the risk of financial loss resulting from non-performance of contractual obligations by a counterparty.

For production and generation activities, we attempt to mitigate our credit exposure by conducting business primarily with high credit quality entities, setting tenor and credit limits commensurate with counterparty financial strength, obtaining master netting agreements, and mitigating credit exposure with less creditworthy counterparties through parental guarantees, prepayments, letters of credit, and other security agreements.

We perform ongoing credit evaluations of our customers and adjust credit limits based upon payment history and the customer’s current creditworthiness, as determined by review of their current credit information. We maintain a provision for estimated credit losses based upon historical experience and any specific customer collection issue that is identified.

As ofMarch 31, 2014, our credit exposure included an $0.8 million exposure to a non-investment grade energy marketing company. The remainder of our credit exposure was concentrated primarily among retail utility customers, investment grade rated companies, cooperative utilities and federal agencies. Our derivative and hedging activities recorded in the accompanying Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Income (Loss) and Condensed Consolidated Statements of Comprehensive Income (Loss) are detailed below and in Note 9.

Oil and Gas

We produce natural gas and crude oil through our exploration and production activities. Our natural long positions, or unhedged open positions, result in commodity price risk and variability to our cash flows.

To mitigate commodity price risk and preserve cash flows, we primarily use over-the-counter swaps, exchange traded futures and related options to hedge portions of our crude oil and natural gas production. We elect hedge accounting on these instruments. These transactions were designated at inception as cash flow hedges, documented under accounting standards for derivatives and hedging, and initially met prospective effectiveness testing. Effectiveness of our hedging position is evaluated at least quarterly.

The derivatives were marked to fair value and were recorded as Derivative assets or Derivative liabilities on the accompanying Condensed Consolidated Balance Sheets. The effective portion of the gain or loss on these derivatives for which we have elected cash flow hedge accounting is reported in AOCI in the accompanying Condensed Consolidated Balance Sheets and the ineffective portion, if any, is reported in Revenue in the accompanying Condensed Consolidated Statements of Income (Loss).

The contract or notional amounts, terms of our commodity derivatives, and the derivative balances for our Oil and Gas segment reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps
Notional (a)	442,500		8,296,250		412,500		7,082,500		522,000		10,633,000
Maximum terms in months (b)	1		1		3		1		9		6
Derivative assets, current	$	—	$	—	$	55	$	—	$	821	$	287
Derivative assets, non-current	$	—	$	—	$	—	$	—	$	—	$	—
Derivative liabilities, current	$	—	$	—	$	—	$	—	$	250	$	1,188
Derivative liabilities, non-current	$	—	$	—	$	—	$	—	$	—	$	—

__________

(a) Crude oil in Bbls, natural gas in MMBtus.

(b) Refers to the term of the derivative instrument. Assets and liabilities are classified as current/non-current based on the term of the hedged transaction and the corresponding settlement of the derivative instrument.

Based on market prices at March 31, 2014, a $3.2 million loss would be realized, reported in pre-tax earnings, and reclassified from AOCI during the next 12 months. Estimated and actual realized gains or losses will change during future periods as market prices fluctuate.

Utilities

The operations of our utilities, including natural gas sold by our Gas Utilities and natural gas used for Electric Utility generation plants or those plants under power purchase agreements where our Electric Utilities must provide the generation fuel (tolling agreements), expose our utility customers to volatility in natural gas prices. Therefore, as allowed or required by state utility commissions, we have entered into commission-approved hedging programs utilizing natural gas futures, options and basis swaps to reduce our customers’ underlying exposure to these fluctuations. These transactions are considered derivatives, and in accordance with accounting standards for derivatives and hedging, mark-to-market adjustments are recorded as Derivative assets or Derivative liabilities on the accompanying Condensed Consolidated Balance Sheets, net of balance sheet offsetting as permitted by GAAP. Unrealized and realized gains and losses, as well as option premiums and commissions on these transactions are recorded as Regulatory assets or Regulatory liabilities in the accompanying Condensed Consolidated Balance Sheets in accordance with state commission guidelines. Accordingly, the hedging activity is recognized in the Condensed Consolidated Statements of Income (Loss) or the Condensed Consolidated Statements of Comprehensive Income (Loss) when the related costs are recovered through our rates.

The contract or notional amounts and terms of the natural gas derivative commodity instruments held at our Utilities were as follows, as of:

	March 31, 2014		December 31, 2013		March 31, 2013
	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)
Natural gas futures purchased	16,140,000	80	17,930,000	84	13,180,000	80
Natural gas options purchased	1,320,000	12	3,890,000	8	440,000	5
Natural gas basis swaps purchased	14,575,000	69	14,785,000	60	11,350,000	69

We had the following derivative balances related to the hedges in our Utilities reflected in our Condensed Consolidated Balance Sheets as of (in thousands):

	March 31, 2014		December 31, 2013		March 31, 2013
Derivative assets, current	$	1,846	$	662	$	522
Derivative assets, non-current	$	—	$	—	$	—
Derivative liabilities, non-current	$	—	$	—	$	—
Net unrealized (gain) loss included in Regulatory assets or Regulatory liabilities	$	4,420	$	7,567	$	4,315

Financing Activities

We entered into floating-to-fixed interest rate swap agreements to reduce our exposure to interest rate fluctuations associated with our floating rate debt obligations. The contract or notional amounts, terms of our interest rate swaps and the interest rate swaps balances reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014			December 31, 2013			March 31, 2013
	Interest Rate Swaps (a)			Interest Rate Swaps (a)			Interest Rate Swaps (b)			De-designated Interest Rate Swaps (c)
Notional	$	75,000		$	75,000		$	150,000		$	250,000
Weighted average fixed interest rate	4.97		%	4.97		%	5.04		%	5.67		%
Maximum terms in years	2.75			3.00			3.75			0.75
Derivative liabilities, current	$	3,498		$	3,474		$	6,982		$	80,692
Derivative liabilities, non-current	$	4,805		$	5,614		$	15,237		$	—

__________

(a) These swaps are designated to borrowings on our Revolving Credit Facility, and are priced using three-month LIBOR, matching the floating portion of the related swaps.

(b) At March 31, 2013, $75 million of these interest rate swaps were designated to borrowings on our Revolving Credit Facility and $75 million were designated to borrowings on our project financing debt at Black Hills Wyoming. These swaps are priced using three-month LIBOR, matching the floating portion of the related debt. The portion of the swaps that were designated to Black Hills Wyoming were settled during the fourth quarter of 2013 upon repayment of the Black Hills Wyoming project financing.

(c) These swaps were settled during the fourth quarter of 2013.

Based on March 31, 2014, market interest rates and balances related to our interest rate swaps, a loss of approximately$3.5 millionwould be realized, reported in pre-tax earnings and reclassified from AOCI during the next 12 months.Estimated and actual realized gains or losses will change during future periods as market interest rates change.

Cash Flow Hedges

The impacts of cash flow hedges on our Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(91	)	Interest expense	$	(894	)		$	—
Commodity derivatives	(3,473		)	Revenue	(311		)		—
Total	$	(3,564	)		$	(1,205	)		$	—

Three Months Ended March 31, 2013
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(19	)	Interest expense	$	(1,796	)		$	—
Commodity derivatives	(2,759		)	Revenue	1,092				—
Total	$	(2,778	)		$	(704	)		$	—

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value of Financial Instrument Disclosures [Text Block]

FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values of our financial instruments, excluding derivatives which are presented in Note 9, were as follows (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cash and cash equivalents (a)	$	17,641	$	17,641	$	7,841	$	7,841	$	12,397	$	12,397
Restricted cash and equivalents (a)	$	2	$	2	$	2	$	2	$	6,846	$	6,846
Notes payable (a)	$	100,000	$	100,000	$	82,500	$	82,500	$	245,000	$	245,000
Long-term debt, including current maturities (b)	$	1,396,949	$	1,541,727	$	1,396,948	$	1,491,422	$	1,041,114	$	1,208,909

__________

(a) Carrying value approximates fair value due to either the short-term length of maturity or variable interest rates that approximate prevailing market rates, and therefore is classified in Level 1 in the fair value hierarchy.

(b) Long-term debt is valued based on observable inputs available either directly or indirectly for similar liabilities in active markets and therefore is classified in Level 2 in the fair value hierarchy.

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Business Segment Information Segment and Corporate Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 3,964,964		$ 3,875,178		$ 3,686,586
Corporate, Non-Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	89,439		80,731		112,771
Electric Utilities [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	2,572,616	[1]	2,525,947	[1]	2,367,014	[1]
Gas Utilities [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	842,660		805,617		752,468
Power Generation [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	90,643	[1]	95,692	[1]	115,708	[1]
Coal Mining [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	74,523		78,825		82,839
Oil and Gas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 295,083		$ 288,366		$ 255,786

[1] The PPA under which Black Hills Colorado IPP provides generation to support Colorado Electric customers from the Pueblo Airport Generation Station is accounted for as a capital lease. As such, assets owned by our Power Generation segment are recorded at Colorado Electric under accounting for a capital lease.

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Commitments and Contingencies Commitments and Contingencies (Details) (Cheyenne Prairie [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Long-term Purchase Commitment [Line Items]
Long-term Purchase Commitment, Amount	$ 222
Equipment [Member]
Long-term Purchase Commitment [Line Items]
Long Term Purchase Commitment, Percentage Committed	100.00%
Construction Contracts [Member]
Long-term Purchase Commitment [Line Items]
Long Term Purchase Commitment, Percentage Committed	83.00%

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Business Segment Information Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting Information, Additional Information [Abstract]

Schedule of Segment Reporting Information [Table Text Block]

Segment information and Corporate activities included in the accompanying Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	178,095	$	4,007		$	14,575
Gas	259,337		—			24,698
Non-regulated Energy:
Power Generation	1,269		21,079			8,073
Coal Mining	6,618		8,880			2,464
Oil and Gas	14,850		—			(2,022		)
Corporate activities	—		—			330
Inter-company eliminations	—		(33,966		)	—
Total	$	460,169	$	—		$	48,118

Three Months Ended March 31, 2013	External Operating Revenue		Inter-company Operating Revenue			Net Income (Loss)
Utilities:
Electric	$	158,483	$	4,147		$	12,356
Gas	199,812		—			18,483
Non-regulated Energy:
Power Generation	1,022		19,338			5,644
Coal Mining	6,010		7,573			1,065
Oil and Gas	15,344		—			(53		)
Corporate activities (a)	—		—			5,699
Inter-company eliminations	—		(31,058		)	3
Total	$	380,671	$	—		$	43,197

__________

(a) Net income (loss) includes a $4.8 million after-tax non-cash mark-to-market gain for the three months ended March 31, 2013 on certain interest rate swaps.

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

Segment information and Corporate balances included in the accompanying Condensed Consolidated Balance Sheets were as follows (in thousands):

Total Assets (net of inter-company eliminations) as of:	March 31, 2014		December 31, 2013		March 31, 2013
Utilities:
Electric (a)	$	2,572,616	$	2,525,947	$	2,367,014
Gas	842,660		805,617		752,468
Non-regulated Energy:
Power Generation (a)	90,643		95,692		115,708
Coal Mining	74,523		78,825		82,839
Oil and Gas	295,083		288,366		255,786
Corporate activities	89,439		80,731		112,771
Total assets	$	3,964,964	$	3,875,178	$	3,686,586

__________

(a) The PPA under which Black Hills Colorado IPP provides generation to support Colorado Electric customers from the Pueblo Airport Generation Station is accounted for as a capital lease. As such, assets owned by our Power Generation segment are recorded at Colorado Electric under accounting for a capital lease.

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Notes Payable Schedule Of Short Term Debt (Tables)

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Schedule of Short-term Debt [Table Text Block]

We had the following notes payable outstanding in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit		Balance Outstanding		Letters of Credit
Revolving Credit Facility	$	100,000	$	27,700	$	82,500	$	22,100	$	95,000	$	36,500
Term Loan due June 2013	—		—		—		—		150,000		—
Total	$	100,000	$	27,700	$	82,500	$	22,100	$	245,000	$	36,500

Credit Facility and Short Term Debt Covenants [Table Text Block]

Our Revolving Credit Facility and our new Term Loan require compliance with the following financial covenant at the end of each quarter:

	As of March 31, 2014	Covenant Requirement
Recourse Leverage Ratio	55%	Less than	65	%

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Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Non-cash Investing and Financing Activities from Continuing Operations [Abstract]
Property, plant and equipment acquired wtih accrued liabilities	$ 40,939	$ 31,780
Increase (decrease) in capitalized assets associated with asset retirement obligations	(2,785)	0
Cash (paid) refunded during the period for continuing operations [Abstract]
Interest (net of amounts capitalized)	(11,452)	(12,768)
Income taxes, net	$ 4	$ (4,656)

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Notes Payable Replacement of Notes Payable (Details) (Loans Payable [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Loans Payable [Member]
Extinguishment of Debt, Amount	$ 150

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Condensed Consolidated Balance Sheets (unaudited) Parantheticals (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Common Stock, Par Per Share	$ 1.00	$ 1.00	$ 1.00
Common Stock, Shares, Issued	44,666,953	44,550,239	44,482,304
Treasury Stock, Shares	37,038	50,877	41,606
Common Stock, Shares Authorized	100,000,000	100,000,000	100,000,000
Common Stock, Shares, Outstanding	44,629,915	44,499,362	44,440,698

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Regulatory Assets and Liabilities Regulatory Assets and Liabilities (Notes)

3 Months Ended

Mar. 31, 2014

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets and Liabilities [Text Block]

REGULATORY ACCOUNTING

We had the following regulatory assets and liabilities (in thousands):

	Maximum	As of		As of		As of
	Amortization (in years)	March 31, 2014		December 31, 2013		March 31, 2013
Regulatory assets
Deferred energy and fuel cost adjustments - current (a)	1	$	23,935	$	16,775	$	16,815
Deferred gas cost adjustments and gas price derivatives (a)	7	42,925		12,366		8,264
AFUDC (b)	45	12,349		12,315		12,335
Employee benefit plans (c)	13	65,833		67,059		115,564
Environmental (a)	subject to approval	1,317		1,800		1,793
Asset retirement obligations (a)	44	3,271		3,266		3,252
Bond issue cost (a)	24	3,383		3,419		3,526
Renewable energy standard adjustment (a)	5	16,088		14,186		16,325
Flow through accounting (c)	35	21,837		20,916		17,308
Other regulatory assets (a)	15	10,181		10,546		9,359
		$	201,119	$	162,648	$	204,541
Regulatory liabilities
Deferred energy and gas costs (a)	1	$	6,485	$	11,708	$	21,463
Employee benefit plans (c)	13	34,355		34,431		60,214
Cost of removal (a)	44	67,640		64,970		56,517
Other regulatory liabilities (c)	25	8,896		9,047		7,399
		$	117,376	$	120,156	$	145,593

__________

(a) Recovery of costs, but not allowed a rate of return.

(b) In addition to recovery of costs, we are allowed a rate of return.

(c) In addition to recovery or repayment of costs, we are allowed a return on a portion of this amount or a reduction in rate base, respectively.

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Risk Management Activities Risk Management Activities (Tables)

3 Months Ended

Mar. 31, 2014

Derivative [Line Items]

Schedule of Derivative Instruments [Table Text Block]

The contract or notional amounts, terms of our interest rate swaps and the interest rate swaps balances reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014			December 31, 2013			March 31, 2013
	Interest Rate Swaps (a)			Interest Rate Swaps (a)			Interest Rate Swaps (b)			De-designated Interest Rate Swaps (c)
Notional	$	75,000		$	75,000		$	150,000		$	250,000
Weighted average fixed interest rate	4.97		%	4.97		%	5.04		%	5.67		%
Maximum terms in years	2.75			3.00			3.75			0.75
Derivative liabilities, current	$	3,498		$	3,474		$	6,982		$	80,692
Derivative liabilities, non-current	$	4,805		$	5,614		$	15,237		$	—

__________

(a) These swaps are designated to borrowings on our Revolving Credit Facility, and are priced using three-month LIBOR, matching the floating portion of the related swaps.

(b) At March 31, 2013, $75 million of these interest rate swaps were designated to borrowings on our Revolving Credit Facility and $75 million were designated to borrowings on our project financing debt at Black Hills Wyoming. These swaps are priced using three-month LIBOR, matching the floating portion of the related debt. The portion of the swaps that were designated to Black Hills Wyoming were settled during the fourth quarter of 2013 upon repayment of the Black Hills Wyoming project financing.

(c) These swaps were settled during the fourth quarter of 2013.

Derivative Instruments, Gain (Loss) [Table Text Block]

The impacts of cash flow hedges on our Condensed Consolidated Statements of Income (Loss) were as follows (in thousands):

Three Months Ended March 31, 2014
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(91	)	Interest expense	$	(894	)		$	—
Commodity derivatives	(3,473		)	Revenue	(311		)		—
Total	$	(3,564	)		$	(1,205	)		$	—

Three Months Ended March 31, 2013
Derivatives in Cash Flow Hedging Relationships	Amount of Gain/(Loss) Recognized in AOCI Derivative (Effective Portion)			Location of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)	Amount of Reclassified Gain/(Loss) from AOCI into Income (Effective Portion)			Location of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)	Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion)
Interest rate swaps	$	(19	)	Interest expense	$	(1,796	)		$	—
Commodity derivatives	(2,759		)	Revenue	1,092				—
Total	$	(2,778	)		$	(704	)		$	—

Oil and Gas [Member]

Derivative [Line Items]

Schedule of Derivative Instruments [Table Text Block]

The contract or notional amounts, terms of our commodity derivatives, and the derivative balances for our Oil and Gas segment reflected on the Condensed Consolidated Balance Sheets were as follows (dollars in thousands) as of:

	March 31, 2014				December 31, 2013				March 31, 2013
	Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps		Crude Oil Futures, Swaps and Options		Natural Gas Futures and Swaps
Notional (a)	442,500		8,296,250		412,500		7,082,500		522,000		10,633,000
Maximum terms in months (b)	1		1		3		1		9		6
Derivative assets, current	$	—	$	—	$	55	$	—	$	821	$	287
Derivative assets, non-current	$	—	$	—	$	—	$	—	$	—	$	—
Derivative liabilities, current	$	—	$	—	$	—	$	—	$	250	$	1,188
Derivative liabilities, non-current	$	—	$	—	$	—	$	—	$	—	$	—

__________

(a) Crude oil in Bbls, natural gas in MMBtus.

(b) Refers to the term of the derivative instrument. Assets and liabilities are classified as current/non-current based on the term of the hedged transaction and the corresponding settlement of the derivative instrument.

Utilities Group [Member]

Derivative [Line Items]

Schedule of Derivative Instruments [Table Text Block]

We had the following derivative balances related to the hedges in our Utilities reflected in our Condensed Consolidated Balance Sheets as of (in thousands):

	March 31, 2014		December 31, 2013		March 31, 2013
Derivative assets, current	$	1,846	$	662	$	522
Derivative assets, non-current	$	—	$	—	$	—
Derivative liabilities, non-current	$	—	$	—	$	—
Net unrealized (gain) loss included in Regulatory assets or Regulatory liabilities	$	4,420	$	7,567	$	4,315

Contract or Notional Amounts and Terms of Commodity Derivatives[Table Text Block]

The contract or notional amounts and terms of the natural gas derivative commodity instruments held at our Utilities were as follows, as of:

	March 31, 2014		December 31, 2013		March 31, 2013
	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)	Notional (MMBtus)	Maximum Term (months)
Natural gas futures purchased	16,140,000	80	17,930,000	84	13,180,000	80
Natural gas options purchased	1,320,000	12	3,890,000	8	440,000	5
Natural gas basis swaps purchased	14,575,000	69	14,785,000	60	11,350,000	69

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Earnings Per Share Basic to Dilutive EPS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income (loss) available for common stock	$ 48,118	$ 43,197
Weighted average shares - basic	44,330	44,053
Dilutive Effect on Basic Earnings Per Share [Abstract]
Equity compensation, shares	224	259
Weighted average shares - diluted	44,554	44,312

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Commitments and Contingencies

There have been no significant changes to commitments and contingencies from those previously disclosed in Note 18 of our Notes to the Consolidated Financial Statements in our 2013 Annual Report on Form 10-K except for those described below.

Natural Gas Delivery Agreement

In 2012, we entered into a ten-year gas gathering and processing contract for natural gas production from our properties in the Piceance Basin in Colorado, under which we pay a gathering fee per Mcf. The contract requires us to deliver a minimum of 20,000 Mcf per day. This agreement became effective in first quarter of 2014 upon completion of the processing infrastructure capable of handling the committed volumes. We believe that our reserves dedicated to the gathering system, and the projected volumes are adequate to satisfy our delivery commitments under this agreement.

Other Commitments

Construction of Cheyenne Prairie, a 132 MW natural gas-fired electric generating facility jointly owned by Cheyenne Light and Black Hills Power is expected to cost approximately$222 million. Construction is expected to be completed by September 30, 2014. As of March 31, 2014, committed contracts for equipment purchases and for construction were 100% and 83% complete, respectively.

Oil Creek Fire

On June 29, 2012, a forest and grassland fire occurred in the western Black Hills of Wyoming. A state fire investigator concluded that the fire was caused by the failure of a transmission structure owned, operated and maintained by Black Hills Power. On April 16, 2013, a lawsuit was filed in the United States District Court for the District of Wyoming, which forty-seven plaintiffs have now joined, asserting claims for damages against Black Hills Power. The claims include allegations of negligence, negligence per se, common law nuisance, and trespass. Although not currently included in the lawsuit, Black Hills Power also received written damage claims from an additional landowner and from the State of Wyoming. Altogether the claims seek recovery for fire suppression, reclamation and rehabilitation costs, damage to fencing and other personal property, alleged injury to timber, grass or hay, livestock and related operations, and diminished value of real estate, for a current total amount of $16 million. In addition to claims for these compensatory damages, the lawsuit seeks recovery of punitive damages. Our investigation of the cause and origin of the fire is ongoing. We have denied and will vigorously defend all claims arising out of the fire, pending the completion of our investigation. We cannot predict the outcome of our investigation, the viability of alleged claims or the outcome of the litigation.

Civil litigation of this kind, however, is likely to lead to settlement negotiations, including negotiations prompted by pre-trial civil court procedures. We believe such negotiations would effect a settlement of all claims. Regardless of whether the litigation is determined at trial or through settlement, we expect to incur significant investigation, legal and expert services expenses associated with the litigation. In order to limit our exposure to losses due to civil liability claims, and related litigation expense, we maintain insurance coverage above a $1.0 million deductible. We expect this coverage to limit our exposure, and we will pursue recoveries to the maximum extent available under the policies. Based upon information currently available, we believe that a loss associated with settlement of pending claims is probable. Accordingly, as of March 31, 2014, we recorded a loss contingency liability related to these claims, and we recorded a receivable for costs we believe are reimbursable and probable of recovery under our insurance coverage. Both of these entries reflect our reasonable estimate of probable future litigation expense and settlement costs; we did not base these contingencies on any determination that it is probable we would be found liable for these claims were they to be litigated.

Given the uncertainty of litigation, however, a loss related to the fire, the litigation and related claims in excess of the loss we have determined to be probable is reasonably possible. However, we cannot reasonably estimate the amount of such possible loss because our investigation is ongoing, damage claims are currently incomplete or undocumented, and there are significant factual and legal issues to be resolved. Further claims may be presented by these and other parties. Based upon information currently available, however, management does not expect the outcome of the claims to have a material adverse effect upon our consolidated financial condition, results of operations or cash flows.

Dividend Restrictions

Our Revolving Credit Facility and other debt obligations contain restrictions on the payment of cash dividends upon a default or event of default. As of March 31, 2014, we were in compliance with these covenants.

Due to our holding company structure, substantially all of our operating cash flows are provided by dividends paid or distributions made by our subsidiaries. The cash to pay dividends to our stockholders is derived from these cash flows. As a result, certain statutory limitations or regulatory or financing agreements could affect the levels of distributions allowed to be made by our subsidiaries. The following restrictions on distributions from our subsidiaries existed at March 31, 2014:

• Our utilities are generally limited to the amount of dividends allowed to be paid to us as a utility holding company under the Federal Power Act and settlement agreements with state regulatory jurisdictions. As of March 31, 2014, the restricted net assets at our Utilities Group were approximately $94 million.