United States
                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                    Form 10-Q

     X    QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
          ACT OF 1934

          For the quarterly period ended June 30, 2001.

     OR

     ___  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 333-52664

                             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
                   ----------                                 ----------

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

           Class                                 Outstanding at July 31, 2001

  Common stock, $1.00 par value                         26,398,986 shares


                                       1

BLACK HILLS CORPORATION I N D E X Page Number PART I. FINANCIAL INFORMATION Item 1. Financial Statements Consolidated Statements of Income- 3 Three, Six and Twelve Months Ended June 30, 2001 and 2000 Consolidated Balance Sheets- 4 June 30, 2001, December 31, 2000 and June 30, 2000 Consolidated Statements of Cash Flows- 5 Three, Six and Twelve Months Ended June 30, 2001 and 2000 Notes to Consolidated Financial Statements 6-16 Item 2. Management's Discussion and Analysis of 17-24 Financial Position and Results of Operations Item 3. Quantitative and Qualitative Disclosures about 25 Market Risk PART II. OTHER INFORMATION Item 1. Legal Proceedings 26 Item 2. Changes in Securities and Use of Proceeds 26 Item 4. Submission of Matters to a Vote of Security Holders 26-27 Item 6. Exhibits and Reports on Form 8-K 27 Signatures 28 2

BLACK HILLS CORPORATION CONSOLIDATED STATEMENTS OF INCOME (unaudited) Three Months Six Months Twelve Months June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands, except per share amounts) Operating revenues $ 419,049 $ 336,978 $ 980,742 $ 584,960 $ 2,019,703 $1,022,439 --------- --------- --------- --------- ------------ ---------- Operating expenses: Fuel and purchased power 298,581 297,431 745,089 505,046 1,610,884 860,453 Operations and maintenance 15,399 8,970 28,183 17,690 57,303 35,067 Administrative and general 23,010 5,292 46,391 9,697 80,432 22,015 Depreciation, depletion and amortization 12,644 6,890 24,524 13,486 43,870 26,723 Taxes, other than income taxes 5,410 3,195 10,981 6,884 19,000 13,936 ---------- --------- --------- --------- ----------- ---------- 355,044 321,778 855,168 552,803 1,811,489 958,194 ---------- --------- --------- --------- ----------- ---------- Operating income 64,005 15,200 125,574 32,157 208,214 64,245 ---------- ---------- --------- --------- ----------- ---------- Other income (expense): Interest expense (9,349) (6,264) (20,278) (11,706) (39,922) (19,651) Interest income 1,010 2,590 1,652 4,631 4,240 6,826 Other, net 2,965 226 4,386 (302) 8,487 880 ---------- ---------- --------- --------- ----------- ---------- (5,374) (3,448) (14,240) (7,377) (27,195) (11,945) ---------- ---------- --------- --------- ----------- ---------- Income before minority interest and income taxes 58,631 11,752 111,334 24,780 181,019 52,300 Minority interest (2,611) - (4,571) 65 (15,909) 1,485 Income taxes (21,167) (3,691) (39,819) (7,723 (62,441) (16,389) ---------- ---------- --------- --------- ----------- ---------- Net income 34,853 8,061 66,944 17,122 102,669 37,396 Preferred stock dividends (300) - (342) - (420) - ---------- ---------- --------- --------- ----------- ---------- Net income available for common stock $ 34,553 $ 8,061 $ 66,602 $ 17,122 $ 102,249 $ 37,396 ========== ========== ========= ========= =========== ========== Weighted average common shares outstanding: Basic 25,502 21,394 24,245 21,385 23,550 21,458 ========== ========== ========= ========= =========== ========== Diluted 25,978 21,449 24,691 21,429 24,014 21,503 ========== ========== ========= ========= =========== ========== Earnings per share of common stock: Basic $ 1.35 $ 0.38 $ 2.75 $ 0.80 $ 4.34 $ 1.74 ========== ========== ========= ========= =========== ========== Diluted $ 1.34 $ 0.38 $ 2.71 $ 0.80 $ 4.28 $ 1.74 ========== ========== ========= ========= =========== ========== Dividends paid per share of common stock $ 0.28 $ 0.27 $ 0.56 $ 0.54 $ 1.10 $ 1.06 ========== ========== ========= ========= =========== ========== The accompanying notes to consolidated financial statements are an integral part of these consolidated financial statements. 3

BLACK HILLS CORPORATION CONSOLIDATED BALANCE SHEETS Unaudited Unaudited June 30 December 31 June 30 2001 2000 2000 ---- ---- ---- (in thousands, except share amounts) ASSETS Current assets: Cash and cash equivalents $ 35,588 $ 24,913 $ 13,644 Securities available-for-sale 3,263 2,113 4,552 Receivables (net of allowance for doubtful accounts of $6,452, $3,631 and $325, respectively) - Customers 142,214 278,436 134,117 Other 10,380 21,283 88,177 Materials, supplies and fuel 20,532 16,545 11,283 Prepaid expenses 7,701 7,428 3,384 Derivatives at market value 56,185 68,292 5,158 ----------- ----------- ----------- 275,863 419,010 260,315 ----------- ----------- ----------- Investments 73,180 63,965 18,334 ----------- ----------- ----------- Property and equipment 1,304,782 1,072,129 752,342 Less accumulated depreciation and depletion (301,822) (277,848) (255,127) ----------- ----------- ----------- 1,002,960 794,281 497,215 ----------- ----------- ----------- Other assets: Derivatives at market value 3,868 - - Regulatory asset 4,134 4,134 3,944 Other, principally goodwill 44,753 38,930 11,372 ----------- ----------- ----------- 52,755 43,064 15,316 ----------- ----------- ----------- $1,404,758 $1,320,320 $ 791,180 =========== =========== =========== LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Current maturities of long-term debt $ 14,470 $ 13,960 $ 3,029 Notes payable 72,854 211,679 156,699 Accounts payable 143,393 247,596 133,155 Accrued liabilities 48,379 49,661 24,494 Derivatives at market value 59,995 65,960 5,158 ----------- ------------ ------------ 339,091 588,856 322,535 ----------- ------------ ------------ Long-term debt, net of current maturities 434,332 307,092 159,260 ----------- ------------ ------------ Deferred credits and other liabilities: Derivatives at market value 2,694 - - Investment tax credits 2,289 2,530 2,776 Federal income taxes 62,193 62,679 49,006 Reclamation and regulatory liability 22,468 22,340 26,326 Other 14,591 16,516 8,068 ----------- ------------ ------------ 104,235 104,065 86,176 ----------- ------------ ------------ Minority interest in subsidiaries 27,246 37,961 - ----------- ------------ ------------ Stockholders' equity: Preferred stock - no par Series 2000-A; 21,500 shares authorized; Issued and Outstanding: 4,893; 4,000 and 0 shares, respectively 5,175 4,000 - ----------- ------------ ------------ Common stock equity- Common stock $1 par value; 100,000,000 shares authorized; Issued: 26,769,144; 23,302,111 and 21,751,207 shares, respectively 26,769 23,302 21,751 Additional paid-in capital 236,956 73,442 40,909 Retained earnings 244,406 191,482 167,617 Treasury stock (8,841) (9,067) (7,556) Accumulated other comprehensive income (loss) (4,611) (813) 488 ----------- ------------ ------------ 494,679 278,346 223,209 ----------- ------------ ------------ Total stockholders' equity 499,854 282,346 223,209 ----------- ------------ ------------ $1,404,758 $1,320,320 $791,180 =========== ============ ============ The accompanying notes to consolidated financial statements are an integral part of these consolidated financial statements. 4

BLACK HILLS CORPORATION CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) Three Months Six Months Twelve Months June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Operating activities: Net income available for common stock $34,553 $8,061 $66,602 $17,122 $102,249 $37,396 Principal non-cash items- Depreciation, depletion and amortization 12,644 6,890 24,524 13,486 43,870 26,723 Gain on sales of assets - - - - (3,736) - Deferred income taxes and investment tax credits 1,511 388 (727) (219) (10,087) 1,148 Undistributed earnings of affiliates (5,219) - (7,342) - (10,172) - Minority interest 2,611 - 4,571 - 15,909 - Change in operating assets and liabilities- Accounts receivable and other current assets 28,241 (34,444) 141,050 (59,585) (9,549) (50,218) Accounts payable and other current liabilities (36,835) 29,920 (105,485) 51,206 27,381 46,962 Derivative fair value adjustment 697 - (2,738) - (5,070) - Other, net 612 351 (2,775) 5,381 5,758 (813) --------- --------- --------- --------- --------- -------- 38,815 11,166 117,680 27,391 156,553 61,198 --------- --------- --------- --------- --------- -------- Investing activities: Property additions (206,967) (37,941) (235,915) (53,207) (321,338) (111,285) (Increase) decrease in investments (1,602) (8,171) (57) (32,327) 22,624 (90,943) Payment for acquisition of net assets, net of cash (10,410) - (10,410) - (39,098) - acquired Proceeds from sales of assets - - - - 5,500 - Available-for-sale securities purchased - - - - - (2,691) Available-for-sale securities sold - 1,853 - 6,935 1,139 14,740 --------- --------- --------- --------- --------- -------- (218,979) (44,259) (246,382) (78,599) (331,173) (190,179) --------- --------- --------- --------- --------- -------- Financing activities: Dividends paid (7,150) (5,876) (13,429) (11,746) (25,211) (23,050) Treasury stock (purchased) sold, net - 96 226 474 (1,285) (1,025) Common stock issued 164,606 103 165,160 263 168,751 437 Increase (decrease) in short-term borrowings (160,404) 37,425 (138,825) 59,120 (124,097) 151,086 Long-term debt - issuance 135,014 1,075 135,689 1,075 195,689 1,075 Long-term debt - repayments (4,808) (289) (7,939) (816) (9,446) (1,330) Subsidiary distributions to minority interests (1,168) - (1,505) - (7,837) - --------- --------- --------- --------- -------- -------- 126,090 32,534 139,377 48,370 196,564 127,193 --------- --------- -------- --------- -------- -------- Increase (decrease) in cash and cash equivalents (54,074) (559) 10,675 (2,838) 21,944 (1,788) Cash and cash equivalents: Beginning of period 89,662 14,203 24,913 16,482 13,644 15,432 --------- --------- -------- --------- -------- -------- End of period $ 35,588 $ 13,644 $ 35,588 $ 13,644 $ 35,588 $ 13,644 ========= ========= ======== ========= ======== ======== Supplemental disclosure of cash flow information: Cash paid during the period for- Interest $ 8,144 $ 5,167 $ 19,954 $ 11,450 $ 39,876 $ 19,302 Income taxes $28,900 $ 7,750 $ 34,800 $ 7,750 $ 45,568 $ 13,751 Non-cash net assets acquired through issuance of common and preferred stock $ 2,747 $ - $ 2,747 $ - $ 36,840 $ - The accompanying notes to consolidated financial statements are an integral part of these consolidated financial statements. 5

BLACK HILLS CORPORATION Notes to Consolidated Financial Statements (unaudited) (Reference is made to Notes to Consolidated Financial Statements included in the Company's Annual Report and Form 10-K) (1) MANAGEMENT'S STATEMENT The financial statements included herein have been prepared by Black Hills Corporation (the Company) without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted pursuant to such rules and regulations; however, the Company believes that the footnotes adequately disclose the information presented. These financial statements should be read in conjunction with the financial statements and the notes thereto, included in the Company's 2000 Annual Report on Form 10-K filed with the Securities and Exchange Commission. Accounting methods historically employed require certain estimates as of interim dates. The information furnished in the accompanying financial statements reflects all adjustments which are, in the opinion of management, necessary for a fair presentation of the June 30, 2001, December 31, 2000 and June 30, 2000, financial information and are of a normal recurring nature. The results of operations for the three, six and twelve months ended June 30, 2001, are not necessarily indicative of the results to be expected for the full year. (2) RECLASSIFICATIONS Certain 2000 amounts in the financial statements have been reclassified to conform to the 2001 presentation. These reclassifications did not have an effect on the Company's stockholders' investment or results of operations as previously reported. (3) NEW ACCOUNTING PRONOUNCEMENTS In July 2001, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards No. 141, "Business Combinations" (SFAS 141) and No. 142, "Goodwill and Other Intangible Assets" (SFAS 142). SFAS 141 requires all business combinations initiated after June 30, 2001 to be accounted for using the purchase method of accounting. Under SFAS 142, goodwill and intangible assets with indefinite lives are no longer amortized but are reviewed annually (or more frequently if impairment indicators arise) for impairment. Intangible assets with a defined life will continue to be amortized over their useful lives (but with no maximum life). The amortization provisions of SFAS 142 apply to goodwill and intangible assets acquired after June 30, 2001. With respect to goodwill and intangible assets acquired prior to July 1, 2001, the Company is required to adopt SFAS 142 effective January 1, 2002. Management is currently evaluating the effect that adoption of the provisions of SFAS 142 that are effective January 1, 2002 will have on the Company's consolidated financial statements. 6

(4) CHANGE IN ACCOUNTING PRINCIPLE In June 1998, the FASB issued SFAS No. 133 (SFAS 133), "Accounting for Derivative Instruments and Hedging Activities." SFAS 133, as amended, establishes accounting and reporting standards requiring that every derivative instrument be recorded in the balance sheet as either an asset or liability measured at its fair value. SFAS 133 requires that changes in the derivative instrument's fair value be recognized currently in earnings unless specific hedge accounting criteria are met. SFAS 133 allows special hedge accounting for fair value and cash flow hedges. SFAS 133 provides that the gain or loss on a derivative instrument designated and qualifying as a fair value hedging instrument as well as the offsetting loss or gain on the hedged item attributable to the hedged risk be recognized currently in earnings in the same accounting period. SFAS 133 provides that the effective portion of the gain or loss on a derivative instrument designated and qualifying as a cash flow hedging instrument be reported as a component of other comprehensive income and be reclassified into earnings in the same period or periods during which the hedged forecasted transaction affects earnings. The remaining gain or loss on the derivative instrument, if any, must be recognized currently in earnings. SFAS 133 requires that on date of initial adoption, an entity shall recognize all freestanding derivative instruments in the balance sheet as either assets or liabilities and measure them at fair value. The difference between a derivative's previous carrying amount and its fair value shall be reported as a transition adjustment. The transition adjustment resulting from adopting this Statement shall be reported in net income or other comprehensive income, as appropriate, as the effect of a change in accounting principle in accordance with paragraph 20 of Accounting Principles Board Opinion No. 20 (APB 20), "Accounting Changes." On January 1, 2001, the Company adopted SFAS 133. The Company had certain non-trading energy contracts and interest rate swaps documented as cash flow hedges, which upon adoption resulted in a decrease to accumulated other comprehensive income of $10.1 million. Upon adoption of SFAS 133, most of the Company's energy trading activities previously accounted for under Emerging Issues Task Force Issue No. 98-10, "Accounting for Energy Trading and Risk Management Activities" (EITF 98-10) fell under the purview of SFAS 133. The effect from this adoption on the energy trading companies and energy trading activities was not material because, unless otherwise noted, the trading companies do not designate their energy trading activities as hedge instruments. This "no hedge" designation results in these derivatives being measured at fair value and gains and losses recognized currently in earnings. This treatment under SFAS 133 is comparable to the accounting under EITF 98-10. (5) CHANGES IN LONG-TERM DEBT AND NOTES PAYABLE In conjunction with the closing of the Fountain Valley acquisition (Note 11) the Company issued long-term non-recourse project level financing. The debt matures July 1, 2006, has a floating interest rate (5.13 percent at June 30, 2001), and is collateralized by a mortgage on the project's land and facilities, leases and rights, including rights to receive payments under long-term purchase power contracts. In addition, during the second quarter of 2001 the Company used net proceeds from its common stock offering (Note 10) to pay down 7

approximately $163 million of its borrowings under short-term credit facilities. Other than the above transactions, the Company had no other material changes in its consolidated indebtedness, as reported in Notes 6 and 7 of the Company's 2000 Annual Report on Form 10-K. (6) COMPREHENSIVE INCOME The following table presents the components of the Company's comprehensive income: Three Months Six Months Twelve Months Ended Ended Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Net income available for common stock $34,553 $8,061 $66,602 $17,122 $102,249 $37,396 Other comprehensive income: Unrealized gain (loss) on available- for-sale securities 127 488 1,151 488 (150) 488 Initial impact of adoption of SFAS 133, net of minority interest - - (7,518) - (7,518) - Fair value adjustment on derivatives designated as cash flow hedges net of minority interest 5,005 - 2,569 - 2,569 - ------- ------ ------- ------- ------- ------- Comprehensive income $39,685 $8,549 $62,804 $17,610 $97,150 $37,884 ======= ====== ======= ======= ======= ======= (7) SUMMARY OF INFORMATION RELATING TO SEGMENTS OF THE COMPANY'S BUSINESS The Company's reportable segments are those that are based on the Company's method of internal reporting, which generally segregates the strategic business groups due to differences in products, services and regulation. As of June 30, 2001, substantially all of the Company's operations and assets are located within the United States. The Company's operations are conducted through six business segments that include: Electric group and segment, which supplies electric utility service to western South Dakota, northeastern Wyoming and southeastern Montana; Independent Energy group consisting of the following segments: Mining, which engages in the mining and sale of coal from its mine near Gillette, Wyoming; Oil and Gas, which produces, explores and operates oil and gas interests located in the Rocky Mountain region, Texas, California and other states; Fuel Marketing, which markets natural gas, oil, coal and related services to customers in the East Coast, Midwest, Southwest, Rocky Mountain, West Coast and Northwest regions markets; Independent Power, which produces and sells power to wholesale customers; and Communications group and Others, which primarily markets communications and software development services. Segment information follows the same accounting policies as described in Note 1 of the Company's 2000 Annual Report on Form 10-K. In accordance with the provisions of SFAS No. 71, intercompany coal sales are not eliminated. Segment information included 8

in the accompanying Consolidated Balance Sheets and Consolidated Statements of Income is as follows (in thousands): External Inter-segment Operating Revenues Operating Revenues Net Income (loss) Quarter to Date June 30, 2001 Electric $ 61,280 $ 321 $16,626 Mining 5,237 2,644 2,211 Oil and gas 8,251 1,024 2,963 Fuel marketing 312,080 9,403 11,793 Independent power 24,975 - 3,687 Communications and others 4,582 1,117 (2,427) Intersegment eliminations - (11,865) - -------- -------- ------- Total $416,405 $ 2,644 $34,853 ======== ======== ======= External Inter-segment Operating Revenues Operating Revenues Net Income (loss) Quarter to Date June 30, 2000 Electric $ 35,899 $ - $7,094 Mining 3,480 2,338 1,441 Oil and gas 4,272 - 1,226 Fuel marketing 289,461 - 593 Independent power 158 - 98 Communications and others 1,370 952 (2,391) Intersegment eliminations - (952) - -------- --------- ------ Total $334,640 $ 2,338 $8,061 ======== ========= ====== External Inter-segment Operating Revenues Operating Revenues Net Income (loss) Year to Date June 30, 2001 Electric $ 131,858 $ 322 $33,964 Mining 10,658 5,486 4,275 Oil and gas 16,833 1,024 5,919 Fuel marketing 764,379 12,994 27,353 Independent power 43,020 - 2,582 Communications and others 8,508 2,217 (7,149) Intersegment eliminations - (16,557) - --------- -------- -------- Total $ 975,256 $ 5,486 $ 66,944 ========= ======== ======== 9

External Inter-segment Operating Revenues Operating Revenues Net Income (loss) Year to Date June 30, 2000 Electric $ 69,198 $ - $14,292 Mining 9,060 4,853 3,804 Oil and gas 8,234 - 2,116 Fuel marketing 491,514 - 1,161 Independent power 242 - 130 Communications and others 1,859 1,858 (4,381) Intersegment eliminations - (1,858) - -------- -------- ------- Total $580,107 $4,853 $17,122 ======== ======== ======= External Inter-segment Operating Revenues Operating Revenues Net Income (loss) 12 Months Ended June 30, 2001 Electric $ 235,915 $ 376 $ 56,776 Mining 22,478 10,283 7,174 Oil and gas 27,782 2,169 8,783 Fuel marketing 1,626,660 26,170 40,211 Independent power 82,193 329 5,694 Communications and others 14,392 3,987 (15,969) Intersegment eliminations - (33,031) - ---------- -------- --------- Total $2,009,420 $10,283 $102,669 ========== ======== ========= External Inter-segment Operating Revenues Operating Revenues Net Income (loss) 12 Months Ended June 30, 2000 Electric $ 138,615 $ - $29,782 Mining 22,452 7,800 8,291 Oil and gas 15,242 - 3,776 Fuel marketing 835,951 - 1,225 Independent power 242 - 87 Communications and others 2,137 3,623 (5,765) Intersegment eliminations - (3,623) - ---------- -------- -------- Total $1,014,639 $ 7,800 $37,396 ========== ======== ======== 10

Other than the following transactions the Company had no other material changes in total assets of its reporting segments, as reported in Note 13 of the Company's 2000 Annual Report on Form 10-K, beyond changes resulting from normal operating activities. o During the first quarter of 2001, as part of the Company's reorganization plan associated with the new "holding company" structure effected in the fourth quarter of 2000, the Company transferred ownership interest in Wyodak Resources Development Corp. between its wholly-owned subsidiaries Black Hills Power and Black Hills Energy Ventures. This transaction had the effect of reducing the "Electric" reporting segment's total assets by approximately $89.6 million. Black Hills Energy Ventures is an "intermediate level" holding company and is not included in a reporting segment. o The Independent Power segment had additions to its power generation assets of approximately $200 million, primarily related to the acquisition and construction of the Fountain Valley facility, expansion of the Valmont and Arapahoe facilities and construction of the Wyoming combustion turbine. o The Oil and Gas segment had additions to its oil and gas properties of approximately $16 million of which $10 million was related to its acquisition of Stewart Petroleum. o The Communications segment had additions to its communications plant of approximately $12 million related to its continued network build-out. (8) LEGAL PROCEEDINGS On April 3, 2001, we reached a settlement of ongoing litigation with PacifiCorp filed in the United States District Court, District of Wyoming, (File No. 00CV-155B). The litigation concerned the parties' rights and obligations under the Further Restated and Amended Coal Supply Agreement dated May 5, 1987, under which PacifiCorp purchased coal from our coal mine to meet the coal requirements of the Wyodak Power Plant. The Settlement Agreement provided for the dismissal of the litigation, with prejudice, coupled with the execution of several new coal-related agreements between the parties discussed below. We believe the value of the Settlement Agreements is equal to the net present value of the litigated Further Restated and Amended Coal Supply Agreement. New Restated and Amended Coal Supply Agreement: Effective January 1, 2001, the parties agreed to terminate the Further Restated and Amended Coal Supply Agreement, and replace it with the New Restated and Amended Coal Supply Agreement (New Agreement). The New Agreement begins on January 1, 2001, and extends to December 31, 2022. Under the New Agreement, we received an extension of sales beyond the June 8, 2013 term of the former Coal Supply Agreement. PacifiCorp will receive a price reduction for each ton of coal purchased. The minimum purchase obligation under the New Agreement increased to 1,500,000 tons of coal for each calendar year of the contract term, subject to adjustment for planned outages. The New Agreement further provides for a special one-time payment by PacifiCorp in the amount of $7,374,000, to be paid on or before September 1, 2001. This payment is being recognized as revenue over the life of the New Agreement. 11

Coal Option Agreement: The term of this agreement begins no later than October 1, 2001, and extends until December 31, 2010. The agreement provides that PacifiCorp shall purchase 1,400,000 tons of coal during the period of October 1, 2001 through December 31, 2002, and 1,000,000 tons of coal in 2003 at a fixed price. The agreement further provides us with a "put" option for 2002 and 2003 under which we may put to PacifiCorp up to 500,000 tons of coal from the Wyodak Mine at a market based price. For each calendar year from January 1, 2004 through 2010, the put option is increased to a maximum of 1,000,000 tons at a market based price. The "put" tonnages will be reduced or offset for quantities of K-Fuel purchased by PacifiCorp under the KFx Facility Output Agreement. Additionally, for each calendar year during which we are selling to PacifiCorp K-Fuel under the KFx Facility Output Agreement described below, and in which we have not exercised our "put" option, PacifiCorp may elect to purchase an equal amount of tonnage from our coal reserves to use in a 50/50 blend with the K-Fuel, up to 500,000 tons per year in 2002 through 2007 at a market based price with a fixed floor. Asset Option Agreement: This agreement provides PacifiCorp an option to purchase a 10% interest in the KFx facility or the legal entity that owns the KFx facility at a market based price. Additionally, the agreement provides to PacifiCorp an option to sell us PacifiCorp's interest in the "In Pit" conveyor system currently owned by PacifiCorp and utilized at the Wyodak Mine at a fixed price. If PacifiCorp exercises its option to sell us the In Pit system, we have a corresponding right to put to PacifiCorp the "North Conveyor System," which serves as the backup coal delivery system for the Wyodak Power Plant at a fixed price. KFx Facility Output Agreement: The KFx plant is a coal enhancement facility we own located near our Wyodak Coal Mine. The KFx plant was built to produce an enhanced coal known as "K-Fuel." Assuming the plant becomes operational, PacifiCorp agrees to purchase K-Fuel for a term beginning January 1, 2002, and extending to December 31, 2007. If the plant is not operational on or before December 31, 2003, the agreement will become void. Under this agreement, PacifiCorp agrees to purchase the output of K-Fuel from the KFx plant, up to a maximum of 500,000 tons for each calendar year from 2002 through 2007 at fixed price with market based escalation. Wyodak reserves the right to sell up to a total of 100,000 tons from the output of the KFx plant to other customers during the same time period. (9) PRICE RISK MANAGEMENT The Company is exposed to market risk stemming from changes in commodity prices. These changes could cause fluctuations in the Company's earnings and cash flows. In the normal course of business, the Company actively manages its exposure to these market risks by entering into various hedging transactions, which are authorized under its Risk Management Policies and Procedures that place clear controls on these activities. Hedging transactions involve the use of a variety of derivative financial instruments. The Company accounts for all energy trading activities at fair value as of the balance sheet date and recognizes currently the net gains or losses resulting from the revaluation of these contracts to fair value in its results of operations. As a result, substantially all of the energy trading activities of the Company's gas marketing, crude oil marketing, and coal marketing operations are accounted for under fair value accounting methodology as prescribed in SFAS 133 or EITF 98-10. 12

Energy Trading Activities The Company, through its independent energy business group, utilizes financial instruments for its fuel marketing services. These financial instruments include fixed-for-float swap financial instruments, basis swap financial instruments and costless collars traded in the over-the-counter financial markets. These derivatives are not held for speculative purposes but rather serve to hedge the Company's exposure related to commodity purchases or sales commitments. Under SFAS 133 and EITF 98-10, these transactions qualify as derivatives or energy trading activities that must be accounted for at fair value. As such, realized and unrealized gains and losses are recorded as a component of income. Because the Company does not, as a policy, permit speculation with "open" positions, substantially all of its trading activities are back-to-back positions where a commitment to buy/(sell) a commodity is matched with a committed sale/(buy) or financial instrument. The quantities and maximum terms of derivative financial instruments held for trading purposes at June 30, 2001, December 31, 2000 and June 30, 2000 are as follows: Max. Term June 30, 2001 Volume Covered (Years) ------------- -------------- ------- (MMBtus) Natural gas basis swaps purchased 29,064,178 2 Natural gas basis swaps sold 29,283,500 2 Natural gas fixed-for-float swaps purchased 15,469,668 1 Natural gas fixed-for-float swaps sold 11,728,279 1 Natural gas swing swaps purchased 1,044,576 1 Natural gas swing swaps sold 12,623,950 1 (Tons) Coal tons sold 961,046 1 Coal tons purchased 1,074,046 1 Max. Term June 30, 2000 Volume Covered (Years) ------------- -------------- ------- (MMBtus) Natural gas basis swaps purchased 26,692,328 3 Natural gas basis swaps sold 23,072,000 3 Natural gas fixed-for-float swaps purchased 8,390,437 1 Natural gas fixed-for-float swaps sold 10,312,447 1 Max. Term December 31, 2000 Volume Covered (Years) ----------------- -------------- ------- (MMBtus) Natural gas basis swaps purchased 25,577,894 2 Natural gas basis swaps sold 26,059,621 2 Natural gas fixed-for-float swaps purchased 6,476,222 1 Natural gas fixed-for-float swaps sold 7,360,560 1 (Tons) Coal tons sold 988,000 1 Coal tons purchased 896,000 1 13

As required under SFAS 133 and EITF 98-10, derivatives and energy trading activities were marked to fair value on June 30, 2001, and the gains and losses recognized in earnings. The amounts related to the accompanying consolidated balance sheet and income statement as of and for the three, six and twelve month periods ended June 30, 2001 are as follows (in thousands): Three Month Six Month Twelve Month Instrument Asset Liability Gain (Loss) Gain (Loss) Gain (Loss) - ---------- ----- --------- ------------ ----------- ----------- Natural gas basis swaps $ 7,708 $11,272 $1,773 $7,029 $(1,439) Natural gas fixed-for-float swaps 16,424 22,765 (5,210) (3,869) (4,177) Natural gas physical 20,104 4,944 3,532 1,197 9,882 Coal transactions 7,363 5,507 314 945 1,855 Crude oil transactions 7,153 6,475 23 155 678 -------- -------- ------- ------ ------- Totals $ 58,752 $ 50,963 $ 432 $5,457 $ 6,799 ======== ======== ======= ====== ======= There were no significant differences between the fair values of derivative assets and liabilities at June 30, 2000. Non-trading Energy Activities To reduce risk from fluctuations in the price of oil and natural gas, the Company enters into swaps and costless collar transactions. The transactions are used to hedge price risk from sales of the Company's forecasted crude oil and natural gas production. For such transactions, the Company utilizes hedge accounting as allowed under SFAS 133. At June 30, 2001, the Company had fixed-for-float swaps and costless collars to hedge portions of its crude oil and natural gas production. These transactions were identified as cash flow hedges, properly documented, and effectiveness testing established. At quarter-end, the hedges met the effectiveness testing criteria and retained their cash flow hedge status. The crude oil hedges recorded ineffectiveness due to basis risk and time value. The effective portion of the gain or loss on these derivatives is reported in other comprehensive income and the ineffective portion is reported in earnings. At June 30, 2001, the Company had fixed-for-float swaps for 17,000 barrels of crude oil per month through December of 2001 with a net fair value of $0.1 million and 10,000 barrels of crude oil per month for January through September of 2002 with a net fair value of $0.1 million. The Company had costless collars (purchased put - sold call) for 10,000 barrels of crude oil per month for 2001 with a net fair value of $0.1 million. In addition, the Company hedged a portion of its forecasted 2001 natural gas production with fixed-for-float swaps. At June 30, 2001 these natural gas swaps were for 676,000 MMBtus with a net fair value of $0.9 million. 14

The effective portion of the gains and losses on these derivatives was recorded in other comprehensive income. At June 30, 2001, accumulated other comprehensive income for all non-trading energy swaps and options was approximately $1.2 million. Derivative fair value gains and losses are recorded in other comprehensive income for the effective portion of the hedge and in earnings for the ineffective portion. The ineffective portion includes both time value and basis risk. The net gain recognized in earnings prior to actual cash settlement is $0.1 million. Financing Activities To reduce risk from fluctuations in interest rates, the Company enters into interest rate swap transactions. These transactions are used to hedge interest rate risk for variable rate debt financing. For such transactions, the Company utilizes hedge accounting per the requirements of SFAS 133. These transactions were identified as cash flow hedges, properly documented, and effectiveness testing established. At quarter-end, these hedges met effectiveness testing criteria and retained their cash flow hedge status. At June 30, 2001, the Company had interest rate swaps with an average balance notional amount of $162.7 million, having a maximum term of six years and a fair value of $(9.1) million. Because these hedges are fully effective (no time value or basis risk), the entire derivative fair value is recorded in accumulated other comprehensive income. At June 30, 2001, the Company had $363.2 million of outstanding, floating-rate debt of which $187.0 million was not offset with interest rate swap transactions that effectively convert the debt to a fixed rate. Credit Risk In addition to the risk associated with price movements, credit risk is also inherent in the Company's risk management activities. Credit risk relates to the risk of loss resulting from non-performance of contractual obligations by a counterparty. While the Company has not experienced significant losses due to the credit risk associated with these arrangements, the Company has off-balance sheet risk to the extent that the counterparties to these transactions may fail to perform as required by the terms of each such contract. (10) COMMON STOCK OFFERING During the first quarter of 2001, the Company announced the public offering of 3 million shares of common stock with an option for the underwriters to purchase 450,000 additional shares. Credit Suisse First Boston, Lehman Brothers, CIBC World Markets and UBS Warburg acted as the managers of the underwriting syndicate. Early in the second quarter of 2001 the Company announced the offering price was set at $52 per share and all 3 million shares were sold with the underwriters exercising their over-allotment option to purchase an additional 383,000 shares. Net proceeds were approximately $163 million after commissions and expenses. The proceeds were used to repay a portion of current indebtedness under revolving credit facilities. 15

(11) ACQUISITIONS Early in the second quarter of 2001, the Company's independent power subsidiary, Black Hills Energy Capital, closed on the purchase of the Fountain Valley facility, a 240 megawatt generation facility located near Colorado Springs, Colorado, featuring six LM-6000 simple-cycle, gas-fired turbines. The facility is currently under construction and is expected to come on-line early in the third quarter of 2001. The facility was purchased from Enron Corporation. Total cost of the project is expected to be $183 million and has been financed primarily with non-recourse financing from Union Bank of California. The Company has obtained an 11-year contract with Public Service of Colorado to utilize the facility for peaking purposes. The contract is a tolling arrangement in which the Company assumes no fuel risk. (12) SUBSEQUENT EVENT Early in the third quarter of 2001, Black Hills Energy Capital announced it had signed a definitive agreement to purchase a 273 MW gas-fired power generation complex located in North Las Vegas, Nevada from Enron North America, a wholly-owned subsidiary of Enron Corporation. The transaction is expected to close during the third quarter 2001. Expansion of the present 51 MW co-generation site near Las Vegas is now under way. Construction of a new combined cycle generation facility adjacent to the existing plant will add approximately 222 MW of capacity to the existing plant site. The Company anticipates total acquisition and construction costs for the 273 MW complex to be approximately $330 million. The new generation is expected to phase in operations in the third quarter of 2002. The facility will feature LM-6000 gas-fired turbine technology comparable to the Company facilities in Colorado and Wyoming. The Company has initiated discussions with several banks and expects to finance the project primarily with non-recourse debt. As part of the transaction, the Company also has secured long-term contracts for the output of the facility. Nearly all of the capacity and energy produced by the existing 51 MW plant is under contract through 2024 with the remainder being merchant power. The power of the planned 222 MW combined-cycle plant is sold under a 15-year contract. The contract requires the purchaser to provide fuel to the power plant when the plant is dispatched. 16

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS We are a growth oriented, diversified energy holding company operating principally in the United States. Our regulated and unregulated businesses have expanded significantly in recent years. Our independent energy group produces and markets power and fuel. We produce and sell electricity in a number of markets, with a strong emphasis in the western United States. We also produce coal, natural gas and crude oil primarily in the Rocky Mountain region and market fuel products nationwide. We also own Black Hills Power, Inc., an electric utility serving approximately 58,600 customers in South Dakota, Wyoming and Montana. Our communications group offers state-of-the-art broadband communications services to residential and business customers in Rapid City and the northern Black Hills region of South Dakota. The following discussion should be read in conjunction with Item 7. - Management's Discussion and Analysis of Financial Condition and Results of Operations - included in our 2000 Annual Report on Form 10-K filed with the Securities and Exchange Commission. Our business and industry outlooks as disclosed in that filing continue to be consistent with management's current expectations and assessments. Results of Operations Consolidated Results Consolidated earnings for the three month period ended June 30, 2001 were $34.6 million or $1.34 per share compared to $8.1 million or $0.38 per share in the same period of the prior year. Consolidated earnings for the six month periods ended June 30, 2001 and 2000 were $66.6 or $2.71 per share and $17.1 million, or $0.80 per share respectively, and consolidated earnings for the twelve month period ended June 30, 2001 were $102.2 million or $4.28 per share compared to $37.4 or $1.74 per share for the same period of the prior year. Increases in earnings for the three, six and twelve month periods ended June 30, 2001 were primarily driven by continued strong performance in our wholesale natural gas marketing business and increased off-system wholesale electricity sales. Strong results in our independent energy business group and electric utility business group were partially offset by losses in our communications group. Unusual energy market conditions stemming primarily from gas and electricity shortages in the West contributed to the strong financial performance in the second quarter of 2001. The Company estimated that more than half of the reported $1.34 earnings per share for the three months ended June 30, 2001 could be attributed to high prices of natural gas and electricity and high gas trading margins during April and May. Energy prices decreased substantially beginning in June 2001. Consolidated revenues for the three, six and twelve month periods ended June 30, 2001 were $419.0 million, $980.7 million and $2.0 billion, respectively. Revenues for the same periods ended June 30, 2000 were $337.0 million, $585.0 million and $1.0 billion, respectively. The growth in revenues was a result of high energy commodity prices through May 2001 and increased volumes of fuel marketed, primarily as a result of extreme price volatility in the western markets, acquisitions and growth in the independent energy business group and increases in off-system sales by our electric utility. 17

Consolidated operating expenses have increased significantly during the three, six and twelve month periods ended June 30, 2001, primarily due to operating costs of acquired and expanded businesses, increased employee costs for growing operations and higher commissions related to performance levels in our fuel marketing and wholesale energy businesses. In addition, for the six and twelve month periods there were significant increases in fuel costs associated with operation of our combustion turbines and purchased power costs related to excess capacity being sold to western markets. Revenue and net income (loss) provided by each business group as a percentage of our total revenue and net income were as follows: Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- Revenues Independent energy 84% 89% 86% 88% 87% 86% Electric utility 15 11 13 12 12 14 Communications 1 - 1 - 1 - --- --- --- --- --- --- 100% 100% 100% 100% 100% 100% === === === === === === Net Income/(Loss) Independent energy 59% 42% 60% 42% 60% 36% Electric utility 48 88 51 83 55 80 Communications and other (7) (30) (11) (25) (15) (16) --- --- --- --- --- --- 100% 100% 100% 100% 100% 100% === === === === === === We expect that earnings growth from the independent energy group over the next few years will be driven primarily by our continued expansion in the independent power production segment. We also believe that strength in commodity prices and increased volumes produced and marketed will provide the opportunity for strong results in our fuel marketing and oil and gas production operations. Our electric utility has continued to produce modest growth in revenue and earnings from the retail business over the past two years. We believe that this trend is stable and that, absent unplanned system outages, it will continue for the next several years due to the extension of our electric utility's rate freeze until January 1, 2005. The share of the utility's future earnings generated from wholesale off-system sales will depend on many factors, including native load growth, plant availability and commodity prices in available markets. Although our communications business continues to significantly increase residential and business customers, losses are expected to continue as the group proceeds with completing the network and increasing the customer base. Net income is expected to be achieved by 2004. We have increased our previously disclosed estimate of net losses in 2001 to $12 million due to an increase in certain reserves for inventory and carrier billings. 18

The following business group and segment information does not include intercompany eliminations: Independent Energy Group Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $363,614 $299,709 $854,394 $513,903 $1,798,064 $881,687 Expenses 326,122 294,966 778,922 503,475 1,672,126 864,431 -------- -------- -------- -------- ---------- -------- Operating income $ 37,492 $ 4,743 $ 75,472 $ 10,428 $ 125,938 $ 17,256 Net income $ 20,654 $ 3,358 $ 40,129 $ 7,211 $ 61,862 $ 13,379 EBITDA $ 44,122 $ 6,227 $ 86,570 $ 13,283 $ 138,046 $ 26,558 EBITDA represents earnings before interest, income taxes, depreciation and amortization. EBITDA is used by management and some investors as an indicator of a company's historical ability to service debt. Management believes that an increase in EBITDA is an indicator of improved ability to service existing debt, to sustain potential future increases in debt and to satisfy capital requirements. However, EBITDA is not intended to represent cash flows for the period, nor has it been presented as an alternative to either operating income, or as an indicator of operating performance or cash flows from operating, investing and financing activities, as determined by accounting principles generally accepted in the United States. EBITDA as presented may not be comparable to other similarly titled measures of other companies. The following table provides a summary of certain operating statistics of our independent energy group: Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- Fuel production: Tons of coal sold 775,000 585,400 1,592,800 1,378,700 3,264,400 3,011,500 Mcf equivalent sales 1,677,400 1,186,900 3,275,900 2,378,000 6,175,600 4,717,500 Average price per barrel of oil sold (including hedge transactions) $25.26 $20.95 $24.67 $20.71 $23.66 $18.39 Average price per Mcf of natural gas sold (including hedge transactions) $5.09 $2.35 $5.24 $2.26 $4.31 $2.20 Fuel marketing average daily volumes: Natural gas - MMBtus 912,700 822,300 889,600 726,300 942,200 610,000 Crude oil - barrels 38,400 47,000 37,900 45,400 40,800 32,300 Coal - tons 6,300 4,200 6,200 4,400 5,300 4,500 19

The independent energy business group's revenues increased 21 percent, 66 percent and 104 percent for the three, six and twelve month periods, respectively. Earnings from the Independent Energy business group increased from 2000 amounts by $17.3 million, or $0.67 per share, and $32.9 million, or $1.33 per share, and $48.5 million, or $2.02 per share for the three, six and twelve month periods ended June 30, 2001, respectively. The revenue and earnings increase for the periods were a direct result of increased volumes, increased fuel and power prices related to gas and electricity shortages in the West Coast markets, and the closing of various acquisitions. In addition, the increase in the twelve-month period was aided by the sale of our ownership interest in a power fund management company which resulted in a $3.7 million pre-tax gain. Daily volumes of natural gas marketed increased 11 percent, 22 percent and 54 percent for the three, six and twelve month periods, respectively. Coal Mining Segment Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $7,881 $5,818 $16,144 $13,913 $32,761 $30,252 Operating income $2,160 $1,890 $ 4,834 $ 5,204 $ 8,424 $11,557 Net income $2,211 $1,441 $ 4,275 $ 3,804 $ 7,174 $ 8,291 EBITDA $3,183 $2,474 $ 6,513 $ 6,275 $11,101 $12,995 A planned five-week overhaul of the Wyodak plant during the second quarter of 2000 resulted in lower coal earnings for the prior three and six month periods compared to the current year. Oil and Gas Segment Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $9,275 $4,272 $17,857 $8,234 $29,951 $15,242 Operating income $4,496 $1,723 $ 8,893 $3,052 $13,747 $ 5,717 Net income $2,963 $1,226 $ 5,919 $2,116 $ 8,783 $ 3,776 EBITDA $6,478 $2,423 $12,605 $4,520 $20,079 $ 8,411 Revenue and earnings of the oil and gas production business segment increased for the three, six and twelve month periods due to increases in gas volumes sold of 48 percent, 44 percent and 41 percent, respectively, while average gas prices realized after hedged transactions were 117 percent, 132 percent and 96 percent higher than the same periods in the prior year, respectively. Barrels of oil sold increased 33 percent, 29 percent and 17 percent for the three, six and twelve month periods while average prices realized after hedged transactions were 21 percent, 19 percent and 29 percent higher than the same periods in the prior year, respectively. The following is a summary of our estimated oil and gas reserves at June 30 determined using constant product prices at the end of the respective period. Estimates of economically recoverable reserves are based on a number of variables, which may differ from actual results. 20

2001 2000 ---- ---- Barrels of oil (in millions) 4.5 4.3 Bcf of natural gas 25.6 17.9 Total in Bcf equivalents 52.6 43.7 During the first quarter we announced the acquisition of operating and non-operating interests in 74 gas and oil wells from Stewart Petroleum for approximately $10 million. The acquisition was closed early in the second quarter of 2001 and increased our proved reserves by approximately 10 billion cubic feet equivalent of which approximately 86 percent are natural gas. Fuel Marketing Segment Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $321,483 $289,461 $777,373 $491,514 $1,652,830 $835,951 Operating income $ 18,812 $ 995 $ 44,180 $ 1,983 $ 65,932 $ (142) Net income $ 11,793 $ 593 $ 27,353 $ 1,161 $ 40,211 $ 1,225 EBITDA $ 19,285 $ 1,323 $ 45,108 $ 2,512 $ 66,869 $ 5,240 Revenues and earnings increased primarily due to a significant increase in natural gas volumes marketed during the current three, six and twelve month periods while margins received also increased substantially. The significant increases can, in part, be attributed to the unusual market conditions in the western markets, which primarily stem from the natural gas and electricity shortages in California and may not recur in the future. However, we believe that the continued growth in demand for natural gas will create opportunities for us to continue to generate strong fuel marketing operating results in the future. Independent Power Production Segment Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $24,975 $ 158 $43,020 $ 242 $82,522 $ 242 Operating income $12,024 $ 135 $17,565 $ 189 $37,835 $ 124 Net income $ 3,687 $ 98 $ 2,582 $ 130 $ 5,694 $ 87 EBITDA $15,176 $ 7 $22,344 $ (24) $39,997 $ (88) Current periods results stem from our acquisition of Indeck Capital in the third quarter of 2000. Early in the second quarter of 2001, we closed on the purchase of the Fountain Valley facility, a 240 megawatt generation facility located near Colorado Springs, Colorado, featuring six LM-6000 simple-cycle, gas-fired turbines. The facility is currently under construction and is expected to come on-line early in the third quarter of 2001. In addition, we obtained an 11-year 21

contract with Public Service of Colorado to utilize the facility for peaking purposes. The contract is a tolling arrangement in which the Company assumes no fuel risk. Electric Utility Group Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $61,601 $35,899 $132,180 $69,198 $236,291 $138,615 Expenses 32,291 22,919 74,206 42,573 136,733 83,435 ------- ------- -------- -------- -------- -------- Operating income $29,310 $12,980 $ 57,974 $26,625 $ 99,558 $ 55,180 Net income $16,626 $ 7,094 $ 33,964 $14,292 $ 56,776 $ 29,782 EBITDA $33,179 $16,924 $ 66,346 $34,401 $115,238 $ 70,638 Electric utility revenues increased 72 percent, 91 percent and 70 percent for the three, six and twelve month periods ended June 30, 2001, respectively, compared to the same periods in the prior year. Earnings from the electric utility increased $9.5 million, or $0.37 per share, $19.7 million, or $0.80 per share, and $27.0 million, or $1.13 per share for the three, six and twelve month periods ended June 30, 2001, respectively. Increased earnings continued to be driven by off-system sales in the wholesale markets; average prices were approximately double the three-month average price received and more than triple the six and twelve month average price received compared to the same periods of the prior year. However, in June 2001, wholesale electricity prices decreased in response to changes in western energy market conditions. Off-system megawatt hours sold increased 138 percent for the three months, 141 percent for the six months and 111 percent for the twelve months ended June 30, 2001 compared to the same periods in 2000, due to higher market prices and the 40 MW generating capacity added in 2000. In addition, the electric utility had modest gains in firm residential and commercial electric sales for all periods presented and a reduction of reserves in the second quarter related to reduced exposure in the stabilizing western markets. These increases were partially offset by higher fuel and operating costs associated with operation of the gas turbines and other power plant operations, and higher purchased power costs. The following table provides certain operating statistics. Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- Firm (system) sales - MWh 464,000 462,000 990,000 958,000 2,005,000 1,938,000 Off-system sales - MWh 293,000 123,000 550,000 228,000 1,006,000 478,000 22

Communications Group Three Months Ended Six Months Ended Twelve Months Ended June 30 June 30 June 30 2001 2000 2001 2000 2001 2000 ---- ---- ---- ---- ---- ---- (in thousands) Revenue $ 4,637 $ 1,370 $ 8,563 $ 1,859 $ 14,392 $ 2,137 Expenses 7,437 3,577 15,134 6,228 29,082 9,246 ------- -------- ------- -------- --------- -------- Operating income $(2,800) $(2,207) $(6,571) $(4,369) $(14,690) $(7,109) Net income $(2,791) $(2,232) $(6,683) $(4,131) $(14,579) $(5,338) EBITDA $ (337) $(1,088) $(1,773) $(2,553) $ (6,123) $(3,795) As previously disclosed, communication losses are expected to continue as the group proceeds with completing the network and increasing the customer base. Net income is expected to be achieved by 2004. We have increased our previously disclosed estimate of net losses in 2001 to $12 million due to an increase in certain reserves for inventory and carrier billings. The following table provides certain operating statistics: June 30 March 31 December 31 June 30 2001 2001 2000 2000 ---- ---- ---- ---- Business customers 1,440 980 650 270 Residential customers 12,000 10,060 8,370 3,960 Liquidity and Capital Resources During the three, six and twelve month periods ended June 30, 2001, we generated sufficient cash flow from operations to meet our operating needs, to pay dividends on common and preferred stock, to pay long-term debt maturities and substantially increase our cash position over June 30, 2000. We continue to fund property and investment additions primarily related to construction of additional electric generation facilities for our independent energy business group through a combination of operating cash flow, increased short-term debt and long-term non-recourse project financing. Investing and financing activities increased primarily due to short and long-term borrowings related to project financing. During the first quarter of 2001, the Company announced the public offering of 3 million shares of common stock with an option for the underwriters to purchase 450,000 additional shares. Credit Suisse First Boston, Lehman Brothers, CIBC World Markets and UBS Warburg acted as the managers of the underwriting syndicate. Early in the second quarter of 2001 the Company announced the offering price was set at $52 per share and all 3 million shares were sold with the underwriters exercising their over-allotment option to purchase an additional 383,000 shares. Net proceeds were approximately $163 million after commissions and expenses. The proceeds were used to repay a portion of current indebtedness under revolving credit facilities. Capital Requirements Early in the third quarter 2001, we announced a definitive agreement to purchase a gas-fired generation complex in North Las Vegas, Nevada from Enron North America, a wholly-owned 23

subsidiary of Enron Corporation. We anticipate total acquisition and construction costs for the 273 MW complex to be approximately $330 million. The project is expected to be primarily financed with project-level non-recourse debt. The capital necessary to fund this project was not included in our forecasted capital requirements reported in our 2000 Annual Report on Form 10-K filed with the Securities Exchange Commission. There have been no additional material changes in our forecasted changes in liquidity and capital requirements from those reported in Item 7 of our 2000 Annual Report on Form 10-K filed with the Securities Exchange Commission. Forward Looking Statements The above information includes "forward-looking statements" as defined by the Securities and Exchange Commission. These statements concern the Company's plans, expectations and objectives for future operations. All statements, other than statements of historical facts, included above that address activities, events or developments that the Company expects, believes or anticipates will or may occur in the future are forward-looking statements. The words believe, intend, anticipate, estimate, aim, project and similar expressions are also intended to identify forward-looking statements. These forward-looking statements may include, among others, such things as expansion and growth of the Company's business and operations; future financial performance; future acquisition and development of power plants; future production of coal, oil and natural gas; reserve estimates; future communications customers; and business strategy. These forward-looking statements are based on assumptions which the Company believes are reasonable based on current expectations and projections about future events and industry conditions and trends affecting the Company's business. However, whether actual results and developments will conform to the Company's expectations and predictions is subject to a number of risks and uncertainties which could cause actual results to differ materially from those contained in the forward-looking statements, including the following factors: prevailing governmental policies and regulatory actions with respect to allowed rates of return, industry and rate structure, acquisition and disposal of assets and facilities, operation and construction of plant facilities, recovery of purchased power and other capital investments, and present or prospective wholesale and retail competition; changes in and compliance with environmental and safety laws and policies; weather conditions; population growth and demographic patterns; competition for retail and wholesale customers; pricing and transportation of commodities; market demand, including structural market changes; changes in tax rates or policies or in rates of inflation; changes in project costs; unanticipated changes in operating expenses or capital expenditures; capital market conditions; counterparty credit risk; technological advances; competition for new energy development opportunities; legal and administrative proceedings that influence the Company's business and profitability; and unanticipated developments in the western power markets, including unanticipated governmental intervention, deterioration in the financial condition of counterparties, default on amounts due, adverse changes in current or future litigation and adverse changes in the tariffs of the California Independent System Operator Corporation. Any such forward-looking statements should be considered in conjunction with Black Hills Corporation's most recent annual report on Form 10-K and its interim quarterly reports on Form 10-Q on file with the Securities and Exchange Commission. New factors that could cause actual results to differ materially from those described in forward-looking statements emerge from time to time, and it is not possible for the Company to predict all such factors, or to the extent to which any such factor or combination of factors may cause actual results to differ from those contained in any forward-looking statement. The Company assumes no obligation to update publicly any such forward-looking statements, whether as a result of new information, future events, or otherwise. 24

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK Other than changes in price risk management activities as disclosed in Note 9 to the Consolidated Financial Statements in this Form 10-Q, there have been no material changes in market risk faced by the Company from those reported in the Company's 2000 Annual Report on Form 10-K filed with the Securities Exchange Commission. For more information on market risk, see Part II, Item 7 in the Company's 2000 Annual Report on Form 10-K, and Notes to Consolidated Financial Statements in this Form 10-Q. 25

BLACK HILLS CORPORATION Part II - Other Information Item 1. Legal Proceedings On April 3, 2001, we reached a settlement of ongoing litigation with PacifiCorp filed in the United States District Court, District of Wyoming (File No. 00CV-155B). For more information on this legal proceeding, see Note 8 - LEGAL PROCEEDINGS - of Notes to Consolidated Financial Statements in this Form 10-Q. Item 2. Changes In Securities and Use of Proceeds (c) On April 20, 2001 we issued the following unregistered securities pursuant to the 2000 earn-out consideration agreed to in the acquisition of Indeck Capital, Inc. on July 7, 2000. The unregistered securities were issued under Rule 506 of Regulation D of the Securities Act of 1933. Series 2000-A Stockholder Common Shares Issued Preferred Stock Issued Gerald R. Forsythe 21,786 554 John W. Salyer 4,216 107 Michelle R. Fawcett 2,284 58 Marsha Fournier 2,284 58 Monica Breslow 2,284 58 Melissa S. Forsythe 2,284 58 Item 4. Submission of Matters to a Vote of Security Holders --------------------------------------------------- (a) The Annual Meeting of Shareholders was held on May 30, 2001. (b) The following Directors were elected to serve until the Annual Meeting of Shareholders in 2004. Adil M. Ameer Everett E. Hoyt Thomas J. Zeller Other Directors whose term of office continues are: Bruce B. Brundage David C. Ebertz Gerald R. Forsythe John R. Howard Kay S. Jorgensen Daniel P. Landguth David S. Maney 26

(c) Matters Voted Upon at the Meeting 1. Elected three Class III Directors to serve until the Annual Meeting of Shareholders in 2004. Adil M. Ameer Votes For 18,957,958 Votes Withheld 597,843 Everett E. Hoyt Votes For 19,083,821 Votes Withheld 471,980 Thomas J. Zeller Votes For 19,087,569 Votes Withheld 468,232 2. Approved an increase in authorized indebtedness from $500 million to $2 billion. Votes For 14,542,445 Votes Against 1,358,473 Abstain 312,657 Broker Non-Votes 3,292,225 3. Approved the Black Hills Corporation Omnibus Incentive Compensation Plan. Votes For 13,764,992 Votes Against 2,157,885 Abstain 340,699 Broker Non-Votes 3,292,225 4. Ratified the appointment of Arthur Andersen LLP to serve as Black Hills Corporation's independent auditors in 2001. Votes For 19,379,082 Votes Against 89,934 Abstain 86,785 Broker Non-Votes -0- Item 6. Exhibits and Reports of Form 8-K (a) Exhibits - None (b) Reports on Form 8-K We have filed the following Reports on Form 8-K since March 31 2001. Form 8-K dated April 6, 2001. Reported the Settlement of the PacifiCorp Litigation. 27

BLACK HILLS CORPORATION 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/ Roxann R. Basham --------------------------------------------- Roxann R. Basham, Vice President - Controller (Principal Accounting Officer) /s/ Mark T. Thies --------------------------------------------- Mark T. Thies, Senior VP & CFO (Principal Financial Officer) Dated: August 14, 2001 28