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 September 30, 1997.March 31, 1998.

                                     OR

___  TRANSITION REPORT PURSUANT  TO  SECTION  13  OR  15(d)  OF  THE
        SECURITIES ACT OF 1934

     For the transition period from __________________________ to _____________._______________.

     Commission File Number 1-7978
 
                     Black Hills Corporation
 Incorporated in South Dakota      IRS Identification Number 46-0111677

                        625 Ninth Street
                Rapid City, South Dakota  57709

         Registrant's telephone number (605)-348-1700

        NONE
   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 October 31, 1997April 30, 1998

Common stock, $1.00 par value                 14,466,11321,711,598  shares






                           BLACK HILLS CORPORATION

                                  I N D E X

                                                          				 Page
                                             				             NumberNUMBER

PART I.      FINANCIAL INFORMATION

Item 1.        Financial Statements

               Consolidated Balance Sheets-                   2-3
        September 30, 1997,3-4
                March 31, 1998, December 31, 19961997
                and September 30, 1996March 31, 1997

               Consolidated Statements of Income-               45
                Three Nine and Twelve Months
                Ended September 30,March 31, 1998 and 1997 and 1996

               Consolidated Statements of Cash Flows-           56
                Three Nine and Twelve Months
                Ended September 30,March 31, 1998 and 1997 and 1996

       Consolidated Statements of Shareholders' Equity-       6
        Three, Nine and Twelve Months Ended
        September 30, 1997 and 1996

               Notes to Consolidated Financial Statements     7-87-9

Item 2.        Management's Discussion and Analysis of      9-1110-12
                Financial Position and Results of Operations


PART II.     OTHER INFORMATION

Item 1.      Legal Proceedings                                 1213

Item 6.      Exhibits and Reports on Form 8-K                  1213

Signatures                                                     1314










                             BLACK HILLS CORPORATION

                            Consolidated Balance Sheets
Unaudited Unaudited September 30March 31 December 31 September 30March 31 1998 1997 1996 19961997 (in thousands) ASSETS Current assets: Cash and cash equivalents $ 11,20020,793 $ 13,34016,774 $ 7,52917,831 Securities available for sale 14,579 11,458 10,68519,313 13,969 15,270 Receivables, net Customers 43,696 12,961 12,17757,292 39,639 12,603 Other 3,471 2,727 8,3463,269 3,414 2,362 Materials, supplies, and fuel 8,219 7,861 7,4898,397 8,642 7,895 Prepaid expenses 1,125 2,650 2,422 82,290 50,997 48,6481,986 1,571 1,585 111,050 84,009 57,546 Property and investments: Electric 485,787 479,237 477,040489,036 487,424 480,158 Coal mining 52,843 53,200 49,76353,039 52,804 53,388 Oil and gas 50,943 45,336 43,86153,043 52,412 46,344 Other 4,988 3,764 3,273 594,561 581,537 573,9376,299 5,666 4,549 601,417 598,306 584,439 Less accumulated depreciation and depletion (193,764) (181,103) (180,713)(202,481) (197,179) (186,182) Net property and investments 400,797 400,434 393,224andinvestments 398,936 401,127 398,257 Other assets: Federal income taxes 8,268 7,972 7,8038,020 8,061 8,013 Regulatory asset 3,626 3,176 3,0263,926 3,776 3,326 Other 12,645 4,775 8,632 24,539 15,923 19,46111,845 11,768 4,813 23,791 23,605 16,152 Total $507,626 $467,354 $461,333$533,777 $508,741 $471,955
See accompanying notes to consolidated financial statements. BLACK HILLS CORPORATION Consolidated Balance Sheets
Unaudited Unaudited September 30March 31 December 31 September 30March 31 1998 1997 1996 19961997 (in thousands) LIABILITIES AND CAPITALIZATION Current liabilities: Current maturities of long-term debt $ 1,330 $ 1,331 $ 1,534 $ 1,5341,310 Notes payable 1,528 143 1,34812 23 23 Accounts payable 36,048 7,332 6,09051,148 32,622 5,207 Accrued liabilities- Taxes 8,837 8,633 6,82313,633 8,040 12,725 Interest 2,988 3,991 2,996 4,035 3,011 Other 7,103 6,438 7,117 57,843 28,115 25,9236,336 7,800 6,206 75,447 53,807 28,467 Deferred credits: Federal income taxes 50,792 48,262 47,20753,605 53,010 49,254 Investment tax credits 4,139 4,516 4,6413,889 4,014 4,390 Reclamation costs 16,793 16,267 16,29316,840 16,664 16,446 Regulatory liability 6,277 6,692 6,9446,028 6,152 6,568 Other 6,327 5,636 5,667 84,328 81,373 80,7526,480 6,331 5,897 86,842 86,171 82,555 Capitalization: Common stock equity- Common stock 14,466 14,450 14,44621,712 21,705 14,457 Additional paid-in capital 47,158 46,841 46,76340,143 39,995 46,973 Retained earnings 140,471 131,884 128,746146,799 143,703 135,339 Total common stock equity 202,095 193,175 189,955208,654 205,403 196,769 Long-term debt 162,834 163,360 164,691 164,703 365,455 357,866 354,658164,164 371,488 368,763 360,933 Total $507,626 $467,354 $461,333$533,777 $508,741 $471,955
See accompanying notes to consolidated financial statements. BLACK HILLS CORPORATION Consolidated Statements of Income (unaudited)
Three Months Nine Months Twelve Months September 30 September 30 September 30March 31 March 31 1998 1997 19961998 1997 1996 1997 1996 (in thousands)thousands, except per share amounts) Operating revenues: Electric $33,358 $31,073 $94,738 $88,357 $125,099 $17,532$ 31,990 $ 32,034 $126,452 $120,447 Coal mining 8,178 8,262 24,005 23,749 31,572 32,1287,924 8,125 30,878 31,372 Oil and gas 3,029 3,230 9,958 9,348 13,165 12,0073,186 3,719 12,762 13,543 Energy marketing 53,61787,956 - 53,617230,747 - 53,617 - 98,182 42,565 182,318 121,454 223,453 161,667131,056 43,878 400,839 165,362 Operating expenses: Fuel and purchased power 62,557 9,034 80,840 25,780 89,254 35,09095,691 9,466 263,534 34,846 Operations and maintenance 8,511 7,190 23,596 22,276 31,847 1,0868,244 7,353 32,423 30,247 Administrative and general 2,936 2,301 7,478 6,239 9,523 8,7762,791 2,476 11,950 8,872 Depreciation, depletion, and amortization 5,439 5,928 16,731 17,357 22,196 21,8176,139 5,579 22,851 22,967 Taxes, other than income taxes 3,097 3,193 9,430 9,506 12,383 12,575 82,540 27,646 138,075 81,158 165,203 109,3443,218 3,298 11,906 12,599 116,083 28,172 342,664 109,531 Operating income (loss): Electric 12,141 10,828 32,427 29,057 42,460 37,12912,315 11,208 45,718 39,711 Coal mining 3,198 3,304 9,731 9,604 12,362 12,5913,197 3,430 11,984 12,359 Oil and gas 494 787 2,276 1,635 3,619 2,603272 1,068 2,110 3,761 Energy marketing and other (191)(811) - (191)(1,637) - (191) - 15,642 14,919 44,243 40,296 58,250 52,32314,973 15,706 58,175 55,831 Other income and (expense): Interest expense (3,559) (3,489) (10,516) (10,419) (14,032) (14,078)(3,590) (3,479) (14,234) (13,954) Investment income 585 400 1,412 982 1,805 1,398597 369 2,364 1,507 Allowance for funds used during construction 44 111 152 360 141 38729 65 151 299 Other, net (197) 122 (409) 771 553 1,151 (3,127) (2,856) (9,361) (8,306) (11,533) (11,142)277 (183) 36 1,035 (2,687) (3,228) (11,683) (11,113) Income before income taxes 12,515 12,063 34,882 31,990 46,717 41,18112,286 12,478 46,492 44,718 Income taxes (3,871) (3,820) (10,898) (9,861) (14,600) (12,035)(3,742) (3,891) (14,176) (13,880) Net income available for common stock $ 8,6448,544 $ 8,243 $23,984 $22,129 $32,117 $29,1468,587 $ 32,316 $ 30,838 Earnings per share - basic and diluted $ 0.39 $ 0.40 $ 1.49 $ 1.42 Weighted average common shares outstanding 14,464 14,443 14,459 14,437 14,457 14,433 Earnings per share $0.60 $0.57 1.66 $1.53 $2.22 $2.0221,712 21,681 21,699 21,669 Dividends paid per share of common stock $0.355 $0.345 $1.065 $1.035 $1.410 $1.370$ 0.25 $ 0.24 $ 0.96 $ 0.93 See accompanying notes to consolidated financial statements.
BLACK HILLS CORPORATION Consolidated Statements of Cash Flows (unaudited)
Three Months Nine Months Twelve Months September 30 September 30 September 30March 31 March 31 1998 1997 19961998 1997 1996 1997 1996 (in thousands) Operating activities: Net Income $ 8,6448,544 $ 8,243 $23,984 $22,129 $32,117 $29,1468,587 $32,316 $30,838 Principal non-cash items- Depreciation, depletion, and amortization 5,439 5,928 16,731 17,357 22,196 21,8176,139 5,579 22,851 22,967 Deferred income taxes and investment tax credits net 37 208 865 1,122 1,775 1,473245 583 1,881 1,632 Allowance for other funds used during construction(21) (70) (80) (227) (41) (247) Increaseconstruction (18) (36) (81) (151) (Increase) decrease in receivables, inventories, and other current assets(33,701) (3,422) (30,312) (4,608)(26,077) (5,850)assets (17,678) 1,754 (46,499) 2,210 Increase (decrease) in other current liabilities 31,089 3,737 28,546 (4,809) 31,943 (993)21,652 696 46,971 2,140 Other, net (668) 1,656 (1,267) 2,028 (833) 4,553 10,819 16,280 38,467 32,992 61,080 49,899(673) (180) 147 2,041 18,211 16,983 57,586 61,677 Investing activities: Available for sale securities sold 3,880 2,341 19,789 35,518 Property additions, excluding allowance for other funds used during construction (6,325) (7,292) (15,463)(14,738)(25,362)(24,021) Energy marketing asset acquisition (6,810) - (6,810) - (6,810) -(3,018) (2,816) (21,597) (24,605) Available for sale securities purchased (8,132) (3,285) (20,864)(13,191)(48,517)(22,079) Available for sale securities sold 11,764 3,198 17,743 9,310 44,623 16,090 (9,503) (7,379) (25,394)(18,619)(36,066)(30,010)(9,224) (6,153) (23,832) (37,323) Energy marketing assets - - (7,232) - (8,362) (6,628) (32,872) (26,410) Financing activities: Dividends paid (5,140) (4,985) (15,397)(14,945)(20,392)(19,777)(5,448) (5,132) (20,856) (20,083) Common stock issued 98 126 333 429 415 561155 139 425 470 Net short-term borrowings 1,505 270 1,385 730 180 (3,055)(11) (120) (11) (900) Long-term debt issued - - - - - - Long-term debt retired (783) (550) (1,534) (1,237) (1,546) (1,763) (4,320) (5,139) (15,213)(15,023)(21,343)(24,034)payments (526) (751) (1,310) (1,313) (5,830) (5,864) (21,752) (21,826) Increase (decrease) in cash and cash equivalents (3,004) 3,762 (2,140) (650) 3,671 (4,145)4,019 4,491 2,962 13,441 Cash and cash equivalents: Beginning of period 14,204 3,76716,774 13,340 8,179 7,529 11,67417,831 4,390 End of period $11,200 $ 7,529 $11,200 $ 7,529 $11,200 $ 7,529$20,793 $17,831 $20,793 $17,831 Supplemental disclosure of cash flow information Cash paid during the period for: Interest $ 4,5664,593 $ 4,524 $11,555 $11,495 $14,047 $14,0264,518 $14,242 $13,968 Income taxes $ 2,1402,000 $ 2,666 $ 8,640 $ 9,416 $11,840 $11,496- $13,840 $12,016 Assumption of Clovis Point reclamation liability $ - $ - $ - $ - $ 7,957 $ - See accompanying notes to consolidated financial statements.
BLACK HILLS CORPORATION Consolidated Statements of Shareholders' Equity (unaudited)
Three Months Nine Months Twelve Months September 30 September 30 September 30 1997 1996 1997 1996 1997 1996 (in thousands) Common stock: Beginning of period$14,461 $14,440 $14,450 $14,425 $14,446 $14,417 Issuance of $1 par value shares 5 6 16 21 20 29 End of period 14,466 14,446 14,466 14,446 14,466 14,446 Additional paid-in capital: Beginning of period 47,065 46,643 46,841 46,355 46,763 46,231 Net proceeds over par value of stock issued 93 120 317 408 395 532 End of period 47,158 46,763 47,158 46,763 47,158 46,763 Retained earnings: Beginning of period136,967 125,488 131,884 121,562 128,746 119,377 Net income 8,644 8,243 23,984 22,129 32,117 29,146 Cash dividends on common stock (5,140) (4,985) (15,397) (14,945) (20,392) (19,777) End of period 140,471 128,746 140,471 128,746 140,471 128,746 Total shareholders' equity $202,095 $189,955 $202,095 $189,955 $202,095 $189,955 See accompanying notes to consolidated financial statements.
BLACK HILLS CORPORATION Notes to Consolidated Financial Statements (Reference is made to Notes to Consolidated Financial Statements included in the Company's Annual Report)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 generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations; however, the Company believes that the footnotes adequately disclose the information presented. It is suggested that theseThese financial statements should be read in conjunction with the financial statements and the notes thereto, included in the Company's 19961997 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 September 30, 1997,March 31, 1998, December 31, 19961997 and September 30, 1996,March 31, 1997, financial information and are of a normal recurring nature. The results of operations for the three and ninetwelve months ended September 30, 1997,March 31, 1998, are not necessarily indicative of the results to be expected for the full year. (2) NEW ACCOUNTING STANDARD DuringCAPITAL STOCK In January, 1998, the Board of Directors declared a 3-for-2 Common Stock Split effected in the form of a stock dividend. The stock dividend was paid March 1997,10, 1998 to shareholders of record on February 13, 1998. The common stock share and per share information in the accompanying consolidated financial statements and notes have been restated to reflect the stock distribution. (3) NET INCOME PER SHARE The Company adopted the Financial Accounting Standards Board released(FASB) Statement of Financial Accounting Standards No. 128 Earnings"Earnings Per Share, (SFAS 128)Share" in 1997 which requires the disclosurepresentation of basic earnings per share and diluted earnings per share. Basic earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during each year. Diluted earnings per share is computed under the treasury stock method and is calculated to compute the dilutive effect of outstanding stock options. A reconciliation of these amounts is as follows (in thousands, except per share amounts):
Three Months Ended Twelve Months Ended March 31 March 31 1998 1997 1998 1997 Net Income $ 8,544 $ 8,587 $32,316 $30,838 Weighted average common shares outstanding: Basic 21,712 21,681 21,699 21,669 Dilutive effect of option plan 24 7 16 4 Diluted 21,736 21,688 21,715 21,673 Earnings per share (Basic and Diluted): $0.39 $0.40 $1.49 $1.42
(4) COMPREHENSIVE INCOME The Company mustadopted FASB Statement No. 130, "Reporting Comprehensive Income", effective January 1, 1998. Statement No. 130 establishes standards for reporting and display of comprehensive earnings and its components in financial statements; however, the adoption of this Statement had no impact on the Company's net earnings or shareholders' equity. Statement No. 130 requires minimum pension liability adjustments, unrealized gains or losses on the Company's available-for- sale securities and foreign currency translation adjustments, which prior to adoption were reported separately in shareholders' equity, to be included in other comprehensive earnings. There were no material differences between net earnings and comprehensive earnings for any periods presented on the accompanying financial statements. (5) ACCOUNTING PRONOUNCEMENTS The FASB has issued two accounting pronouncements which the Company will adopt SFAS 128 in the fourth quarter of 19971998. FASB Statement NO. 131 "Disclosures about Segments of an Enterprise and anticipates itRelated Information" requires that a publicly-held company report financial and descriptive information about its operating segments in financial statements issued to shareholders for interim and annual periods. The Statement also required additional disclosures with respect to products and services, geographic areas of operation, and major customers. The Company has historically presented segment information in the consolidated financial statements and related notes and as such does not expect adoption of the disclosures requirements of this pronouncement will not have a material impact on the resultsits financial statements. FASB Statement No. 132 "Employers' Disclosures about Pensions and Other Postretirement Benefits - an amendment of operationsFASB Statements No. 87, 88, and 106" requires revised disclosures about pension and other postretirement benefit plans. The Company does not expect that adoption of the Company. (3) ENERGY MARKETING ASSET ACQUISITION On July 25, 1997, Black Hills Corporation purchaseddisclosure requirements of this pronouncement will have a material impact on its financial statements. In March, 1998, the assetsAmerican Institute of Wickford Energy, a wholesale natural gasCertified Public Accounts issued Statement of Position 98-1 ("SOP 98-1"), "Accounting for the Costs of Computer Software Developed or Obtained for Internal Use." The Statement is effective for fiscal years beginning after December 15, 1998. Earlier application is encouraged in fiscal years for which annual financial statements have not been issued. The statement defines which costs of computer software developed or obtained for internal use are capital and crude oil marketing company. The purchase agreement required fixed cash payments of $7,000,000, subject to certain closing adjustments, at the closing date and additionally allows for contingent payments up to $1,600,000. The contingent paymentswhich costs are dependent on certain profit thresholds of the acquired company. The acquisition will be accounted for under the purchase method of accounting and as such, the results of operations are included in the Company's consolidated financials from July 25, 1997. Natural gas and crude oil marketing operations are high-volume, low margin operations. (4) RENEGOTIATED POWER SALES AGREEMENTexpense. The Company has entered into a Restated and Amended Power Sales Agreement ("not yet determined when they will adopt the new Statement. The Amended Agreement") with PacifiCorp. This agreement restates and amendseffect of adoption is not expected to materially affect the Purchased Power Agreement ("The Agreement") that was entered into with PacifiCorp on December 31, 1983, which obligated the Company to purchase 75 megawatts of power from PacifiCorp based upon the costs of PacifiCorp's Colstrip Power Plants. The Agreement was for a term of 40 years. The Amended Agreement provides (i) that 25 megawatts of the contract capacity amount and the charges therefor will be deleted, 5 megawatts each year commencing in the year 2000, (ii) the Company shall pay no levelized annual charges for Colstrip Plants' additions and replacement which are completed after January 1, 1997, (iii) that commencing January 1, 1997, all fixed cost components of the Variable Costs to be paid by the Company shall be based on an assumption that the Colstrip Plants operated at an 80 percent load factor, (iv) changes to the fixed cost formula using PacifiCorp's initial investment in the Colstrip Power Plants and the Federal Energy Regulatory Commission (FERC) approved capital structure, and (v) unbundles the transmission charge to PacifiCorp's FERC filed rates. The Amended Agreement is subject to FERC approval. Future cost reductionsCompany's financial position or increases related to these amendments will depend on PacifiCorp's future capital structure and cost of capital and the cost of replacement power starting in the year 2000.result operations. Management's Discussion and Analysis of Financial Condition and Results of Operations LIQUIDITY, CAPITAL RESOURCES, AND COMMITMENTS In the past the Company has depended upon internally generated funds, issuance of short and long-term debt and sales of common stock to finance its activities. It is expected that future activities will also be financed by the most appropriate mix of these various sources of funds. The Company currently has bank lines of credit totaling $12,000,000, which providesprovide for interim borrowings and the opportunity for timing of permanent financing. The Company had $1,505,000no balances outstanding under these lines of credit on September 30, 1997.March 31, 1998. There are no compensating balance requirements associated with these lines of credit. In addition to the above lines of credit, WyodakBlack Hills Energy Resources, Development Corp. has guaranteed a $15,000,000 line of credit for Enserco Energy, Inc. to use to guarantee letters of credit. At September 30, 1997, there were no balances outstanding on this line of credit. In addition to the above lines of credit, Wickford Energy Marketing, Inc. has an uncommitted demand credit facility for up to $65 million. This facility allows $50 million for a transactional line of credit and $15 million overdraft line of credit. This facility is used to support the issuance of letters of credit. At September 30, 1997, WickfordMarch 31, 1998, Black Hills Energy Resources has approximately $26$28 million of outstanding letters of credit. In addition to the above lines of credit, Wyodak Resources Development Corp. has guaranteed a $15,000,000 line of credit for Enserco Energy, Inc. to use to guarantee letters of credit. At March 31, 1998, there were no balances outstanding on this line of credit. RESULTS OF OPERATIONS Black Hills Corporation is an energy company consisting of four principal businesses: electric, coal mining, oil and gas production, and crude oil and natural gas marketing. Consolidated net income was $8,644,000$8,544,000 for the three months ended $23,984,000 for the nine months ended and $32,117,000$32,316,000 for the twelve months ended September 30, 1997,March 31, 1998, representing stable earnings and an increase of 5 percent, 8 percent and 10 percent, respectively. The increase in earnings for the twelve months ended March 31, 1998 was primarily due to increased sales volumes for the electric operations, resulting from the salesales to Montana-Dakota Utilities, Sheridan, Wyoming load, which commenced January 1, 1997, and increasedpartially offset by lower oil and natural gas prices.commodity prices, mild weather and weak market conditions in the areas served by the energy marketing companies. Consolidated revenues and fuel and purchased power expense increased infor the three nine and twelve months ended March 31, 1998 primarily due to oil and natural gas purchases and sales from the energy marketing acquisition. operations. Consolidated revenue and income from continuing operations provided by the four businesses as a percentage of the total were as follows:
Three Months Ended Nine Months Ended Twelve Months Ended September 30 September 30 September 30March 31 March 31 1998 1997 19961998 1997 1996 1997 1996 REVENUEREVENUES Electric 34%25% 73% 52% 73% 56%32% 73% Coal mining 6 19 8 19 13 20 14 20 Oil and gas 2 8 3 8 6 7 6 7 Energy marketing 5567 - 29 - 2457 - 100% 100% 100% 100% 100% 100% Three Months Ended Nine Months Ended Twelve Months Ended September 30 September 30 September 30 1997 1996 1997 1996 1997 1996 NET INCOME INCOME/(LOSS) Electric 71%75% 64% 66% 62% 64%71% 61% Coal mining 27 3028 29 33 30 3428 31 Oil and gas 4 6 72 8 5 8 69 Energy marketing and other (2) - (2) - (2)Other (5) (1) 100% 100% 100%(4) (1) 100% 100% 100% Capital expenditures and depreciation, depletion, and amortization by industry segment were as follows: Three Months Ended Nine Months Ended Twelve Months Ended September 30 September 30 September 30 1997 1996 1997 1996 1997 1996100%
Capital expenditures and depreciation, depletion, and amortization by business segment were as follows (in thousands): CAPITAL EXPENDITURES (includes AFDC) Electric $ 3,168 $ 3,866 $ 7,879 $ 8,665 $12,036 $14,420$2,162 $1,490 $13,254 $13,251 Coal mining 100 1,208 1,545 1,404 2,298 2,593245 205 1,546 1,988 Oil and gas 2,887 2,236 5,993 4,836 10,743 7,195630 1,126 6,699 9,439 Energy marketing 6,810 - 6,810 - 6,8107,232 - Other 191 52 126 60 326 60 $13,156 $ 7,362 $22,353 $14,965 $32,213 $24,268 DEPRECIATION, DEPLETION,(1) 31 179 78 $3,036 $2,852 $28,910 $24,756 Depreciation, Depletion, AND AMORTIZATION Electric $3,321 $ 4,092 $10,963 $11,896 $15,171 $15,285$3,797 $3,821 $14,584 $16,220 Coal mining 878 664 2,427 1,974 3,434 2,738855 761 3,282 3,079 Oil and gas 1,142 1,172 3,243 3,487 3,493 3,7941,342 997 4,606 3,668 Energy marketing 98145 - 98379 - 98 - $5,439 $ 5,928 $16,731 $17,357 $22,196 $ 21,817$6,139 $5,579 $22,851 $22,967
ELECTRIC OPERATIONS Electric revenue increased 7 percent for the three, nine and twelve month periods ending September 30, 1997, primarily due to strong growth in sales. Firm kilowatthour sales increased 11 percent for the three month periodwere stable and increased 14 percent for the nine and twelve month periods. This increase is directly related to serving the Montana-Dakota Utilities, Sheridan, Wyoming Load. Electric expenses remained relatively flat for the three, nine and twelve months ended September 30, 1997. Fuel and purchased power expense increased 7 percent year to date and 3 percent for the quarter and twelve month period. The increase in fuel and purchased power expense was directly related to the increase in kilowatt-hour sales. MINING OPERATIONS Mining revenues decreased slightly5% for the three and twelve month periods ending September 30,March 31, 1998. Firm kilowatthour sales decreased 4 percent for the three month period due to milder weather and the Homestake reorganization, and increased 8 percent for twelve month periods due to serving the Montana-Dakota Utilities, Sheridan, Wyoming Load beginning January 1, 1997. In January the Company's third largest electric customer (5.6 percent of 1997 electric revenues), Homestake Mining Company, implemented a reorganization plan which included a temporary shutdown of its gold mine. The mine reopened in April 1998 with a reduced workforce. In addition, our low-cost generation allowed the Company to recapture a portion of the margin loss from Homestake in the spot energy market. Electric expenses decreased 8% and increased 3% for the three and twelve months ended March 31, 1998 due to continued cost containment and lower purchased power and fuel costs. For the twelve months ended March 31, 1998, such cost containment and lower purchased power and fuel costs partially offset additional cost associated with serving the Sheridan, Wyoming load. MINING OPERATIONS Mining earnings decreased 2% and 7% for the three and twelve month periods ending March 31, 1998. Earnings decreased $398,000$658,000 for the ninetwelve month period primarily as a result of a $500,000 gain from the sale and retirement of property recognized in the firstfourth quarter of 1996. Tons of coal sold were relatively flat compared to the prior year. OIL AND GAS PRODUCTION OPERATIONS Oil and gas earnings decreased $158,000$546,000 and $1,128,000 for the third quarter and increased $459,000 and $778,000 for the nine and twelve month periods. The decrease in oil and gas earnings for the third quarter reflects a decrease in oil prices compared to the prior year. The increase in earnings for the ninethree and twelve month periods reflectsprimarily as a 14result of decreased commodity prices. Oil and natural gas prices decreased 33 percent and 2428 percent, increase in gas prices,respectively for the three month period and decreased 21 percent and 4 percent, respectively for the twelve month period ended March 31, 1998. Production increased 7 percent and 2 percent for the three and twelve month periods, respectively. ENERGY MARKETING OPERATIONS Energy marketing revenues and related fuel and purchased power expenses represents the crude oil and natural gas purchases and sales of WickfordBlack Hills Energy Marketing,Resources, Inc. which was acquired on July 25, 1997. Crude oil and natural gas wholesale marketing operations are high-volume, low margin operations. Mild weather in the East Coast and Midwest markets served and high storage levels through the winter depressed margins for the periods. Black Hills Energy Resources marketed 306,700 mmbtus and 14,900 barrels of oil per day for the three month period ended March 31, 1998 and 258,900 mmbtus and 13,400 barrels of oil per day since the Company acquired the assets in July 1997. BLACK HILLS CORPORATION Part II - Other Information Item 1. LEGAL PROCEEDINGS There are no legal proceedings to be reported on for the quarter ending September 30, 1997.March 31, 1998. Item 6. EXHIBITS AND REPORTS ON FORM 8-K a. EXHIBITS None b. REPORTS ON FORM 8-K The Registrant filed a Form 8-K on July 25, 1997, reporting the purchase of the assets of Jomax Partners, L.P., as successor to and survivor of Wickford Energy Marketing, L.C., and Wickford Energy Marketing Canada Company. The Registrant filed a Form 8-K on October 10, 1997, reporting the restatement and amendment to its Purchased Power Agreement with PacifiCorp.None 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/ DALE E. CLEMENT Dale E. Clement, SeniorROXANN R. BASHAM Roxann R. Basham, Vice President-Finance (Principal Financial Officer) /S/ MARK T. THIES Mark T. Thies, Controller (Principal Accounting Officer) Dated: November 13, 1997May 11, 1998