BLACK HILLS CORP
10-Q, 1999-11-15
ELECTRIC SERVICES
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                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                    Form 10Q

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

     For the quarterly period ended September 30, 1999.

                                                                 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

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, 1999

Common stock, $1.00 par value                           21,349,881  shares




<PAGE>




                             BLACK HILLS CORPORATION

                                    I N D E X

                                                                          Page
                                                                         Number

PART I.  FINANCIAL INFORMATION

Item 1.           Financial Statements

                  Consolidated Balance Sheets-                              3-4
                    September 30, 1999, December 31, 1998
                    and September 30, 1998

                  Consolidated Statements of Income-                          5
                    Three, Nine and  Twelve Months
                    Ended September 30, 1999 and 1998

                  Consolidated Statements of Cash Flows-                      6
                    Three, Nine and Twelve Months
                    Ended September 30, 1999 and 1998

                  Notes to Consolidated Financial Statements               7-13

Item 2.           Management's Discussion and Analysis of                 14-19
                    Financial Position and Results of Operations


PART II. OTHER INFORMATION

Item 1.           Legal Proceedings                                          20

Item 6.           Exhibits and Reports on Form 8-K                           20

Signatures                                                                   21





<PAGE>





                             BLACK HILLS CORPORATION

                           Consolidated Balance Sheets

<TABLE>
<CAPTION>
                                                              September 30        December 31    September 30
                                                                  1999                1998             1998
                                                              (unaudited)       (in thousands)    (unaudited)
Assets
<S>                                                             <C>                  <C>              <C>
Current assets:
  Cash and cash equivalents                                     $ 13,928             $ 14,764         $ 14,421
  Securities available for sale                                   11,417               22,675           23,951
  Receivables, net
    Customers                                                    124,724               87,068           67,557
    Other                                                          4,736                2,919            3,267
  Materials, supplies, and fuel                                   16,056                9,733            9,205
  Prepaid expenses                                                 3,563                3,321            3,083
                                                             -----------           ----------      -----------
                                                                 174,424              140,480          121,484
                                                               ---------             --------        ---------

Property and investments:
  Electric utility                                               512,393              496,883          493,727
  Non-regulated energy                                           128,307              115,271          114,180
  Communication and others                                        33,840                7,395            4,883
                                                              -----------          ----------       ----------
                                                                 674,540              619,549          612,790

Less accumulated depreciation
 and depletion                                                  (245,607)            (229,942)        (214,043)
                                                               ---------            --------         --------

  Net property and  investments                                  428,933              389,607          398,747
                                                               ---------            ---------        ---------

Other assets:
  Federal income taxes                                            11,736               12,347            8,068
  Regulatory asset                                                 3,978                3,978            4,042
  Other                                                           14,846               13,005           13,626
                                                              ----------           ----------       ----------
                                                                  30,560               29,330           25,736
                                                             -----------           ----------       ----------

     Total                                                      $633,917             $559,417         $545,967
                                                                ========             ========         ========
</TABLE>

See  accompanying   notes  to  consolidated financial statements.

<PAGE>

<TABLE>
<CAPTION>

                                                        BLACK HILLS CORPORATION

                                                      Consolidated Balance Sheets

                                                              September 30         December 31     September 30
                                                                  1999                1998             1998
                                                              (unaudited)        (in thousands)    (unaudited)
Liabilities and Capitalization
<S>                                                            <C>                  <C>              <C>
Current liabilities:
   Current maturities of long-term debt                        $   1,330            $   1,330        $   1,330
   Notes payable                                                  25,291                5,090            1,502
   Accounts payable                                              121,125               74,087           60,816
   Accrued liabilities-
     Taxes                                                         9,597                9,950            9,079
     Interest                                                      2,989                3,956            3,196
     Other                                                         9,079                8,169            8,043
                                                              ----------           ----------       ----------
                                                                 169,411              102,582           83,966
                                                                --------            ---------        ---------

Deferred credits:
   Federal income taxes                                           57,257               55,107           54,765
   Investment tax credits                                          3,145                3,514            3,639
   Reclamation costs                                              17,513               17,000           17,192
   Regulatory liability                                            5,302                5,661            5,785
   Other                                                           7,334                6,857            6,826
                                                             -----------           ----------       ----------
                                                                  90,551               88,139            88,207
                                                              ----------            ---------         ---------

Capitalization:
   Common stock equity-
     Common stock                                                 21,736               21,719           21,717
     Additional paid-in
      capital                                                     40,588               40,254           40,238
     Retained earnings                                           157,343              147,774          153,105
     Treasury stock                                               (6,412)              (3,081)          (3,296)
                                                             ------------         -----------         --------
  Total common stock equity                                      213,255              206,666          211,764
  Long-term debt                                                 160,700              162,030          162,030
                                                              ----------            ---------        ---------
                                                                 373,955              368,696          373,794
                                                              ----------            ---------        ---------

        Total                                                   $633,917             $559,417         $545,967
                                                                ========             ========         ========
</TABLE>

See  accompanying   notes  to  consolidated financial statements.


<PAGE>

<TABLE>
<CAPTION>

                                                        BLACK HILLS CORPORATION
                                                   Consolidated Statements of Income
                                                              (unaudited)

                                                         Three Months                  Nine Months               Twelve Months
                                                         September 30                  September 30              September 30
                                                     1999            1998          1999          1998         1999            1998
                                                     ----            ----          ----          ----         ----            ----
                                                                          (in  thousands,   except  per  share amounts)
<S>                                               <C>           <C>            <C>          <C>             <C>           <C>
Operating revenues:
  Electric utility                                  $36,425     $ 34,982       $100,231     $ 96,810         132,657      $128,569
  Non-regulated energy                              183,354      135,176        473,945      388,519         635,444       488,103
                                                  ---------    ---------      ---------    ---------       ---------    ----------
                                                    219,779      170,158        574,176      485,329         768,101       616,672
                                                  ---------    ---------      ---------    ---------       ---------    ----------
Operating expenses:
  Fuel and purchased power                          178,575      131,130        460,470      375,932         615,806       472,540
  Operations and maintenance                          8,594        8,113         24,567       24,168          33,173        32,313
  Administrative and general                          5,017        4,062         14,145       10,901          19,122        14,860
  Depreciation, depletion, and amortization           7,632        6,117         19,454       18,501          25,015        24,081
  Oil and gas ceilings test write-down                    -            -              -            -          13,546             -
  Taxes, other than income taxes                      3,286        3,133          9,116        9,434          12,177        11,989
                                                -----------  -----------     ----------   ----------      ----------    ----------
                                                    203,104      152,555        527,752      438,936         718,839       555,783
                                                  ---------    ---------      ---------     --------       ---------    ----------

Operating income                                     16,675       17,603         46,424       46,393          49,262        60,889
                                                 ----------    ---------     ----------   ----------      ----------    ----------

Other income and  (expense):
  Interest expense                                   (4,847)      (3,709)       (12,933)     (10,984)        (16,656)      (14,594)
  Investment income                                   2,039          793          4,029        2,129           4,863         2,850
  Other, net                                             (9)        (169)          (266)         315            (552)          507
  Minority interest                                     464            -            979            -             979             -
                                                 -----------   ---------     -----------  ----------      ----------    ----------
                                                     (2,353)      (3,085)        (8,191)      (8,540)        (11,366)      (11,237)
                                                  ----------   ---------     -----------  ----------      ----------    ----------

Income before income taxes                           14,322       14,518         38,233       37,853          37,896        49,652
Income taxes                                         (4,597)      (4,902)       (11,714)     (12,196)        (11,227)      (15,625)
                                                  ----------  ----------     -----------  -----------     -----------   ----------
  Net income available for common stock            $  9,725    $   9,616       $ 26,519    $  25,657       $  26,669     $  34,027
                                                 ==========    =========       ========    =========       =========     =========

Weighted average common shares
  Outstanding (Basic):                               21,442       21,577         21,465       21,639          21,492        21,655
                                                 ==========   ==========     ==========   ==========      ==========     =========
                      (Diluted):                     21,494       21,633         21,506       21,676          21,523        21,684
                                                 ==========   ==========     ==========   ==========      ==========     =========

Earnings per share (Basic):                          $0.45         $0.45          $1.24        $1.19          $1.24          $1.57
                                               ===========   ===========   ============  ===========    ===========     ==========
                              (Diluted):             $0.45         $0.44          $1.23        $1.18          $1.24          $1.57
                                               ===========    ==========   ============    =========    ===========       ========
Dividends paid per share of
  common stock                                       $0.26         $0.25          $0.78        $0.75          $1.03          $0.987
                                               ===========    ==========    ===========    =========    ===========       =========
</TABLE>

    See  accompanying  notes  to  consolidated financial statements.

<PAGE>
<TABLE>
<CAPTION>

                                                       BLACK HILLS CORPORATION
                                                Consolidated Statements of Cash Flows
                                                             (unaudited)


                                                      Three Months                  Nine Months                Twelve Months
                                                      September 30                 September 30                September 30
                                                     1999        1998            1999        1998           1999          1998
                                                     ----        ----            ----        ----           ----          ----
                                                                                  (in thousands)
<S>                                                   <C>         <C>            <C>          <C>            <C>           <C>
Operating activities:
  Net income                                          $ 9,725     $ 9,616        $26,519      $25,657        $26,669       $34,027
  Principal non-cash items-
   Depreciation, depletion, and amortization            7,632        6,117        19,454       18,501         38,561        24,081
   Deferred income taxes and
     investment tax credits                               (85)        295           (156)         767         (3,386)        2,165
  (Increase) decrease in receivables,
    inventories, and other current assets             (38,389)    (10,256)       (46,038)     (29,846)       (65,967)      (26,601)
   Increase (decrease) in other current
     liabilities                                       32,103       6,197         46,628       28,681         61,656        26,150
   Other, net                                          (4,443)     (1,145)        (4,387)        (789)        (5,750)        1,024
                                                  ------------   ----------   -----------  -----------   ------------   ----------
                                                        6,543      10,824         42,020       42,971         51,783        60,846
                                                  -----------     -------      ---------     --------      ----------    ---------
Investing activities:
Net property additions, including
    allowance for other funds used
    during construction                               (23,063)     (5,935)       (53,055)     (16,194)       (62,142)      (22,539)
Available for sale securities sold                      3,381         586         16,839       11,810         18,683        12,317
Available for sale securities purchased                (2,098)     (1,108)        (5,581)     (21,792)        (6,149)      (21,689)
                                                    ----------   ----------   -----------   ----------   ------------    ----------
                                                      (21,780)     (6,457)       (41,797)     (26,176)       (49,608)      (31,911)
                                                     ---------  ---------      ----------   ---------     -----------    ---------
Financing activities:
  Dividends paid                                       (5,651)     (5,428)       (16,950)     (16,255)       (22,380)      (21,392)
  Treasury stock, net                                     119          33         (3,331)      (3,296)        (3,116)       (3,296)
  Common stock issued                                     101          56            351          255            369           331
  Net short-term borrowings                            19,678       1,490         20,201        1,479         23,789           (26)
  Long-term debt payments                                (514)       (514)        (1,330)      (1,331)        (1,330)       (1,331)
                                                   ----------- ----------   ------------- -----------     -----------   ----------
                                                       13,733      (4,363)        (1,059)     (19,148)        (2,668)      (25,714)
                                                     --------   ---------   -------------   ---------     -----------    ---------
  Increase (decrease) in
   cash and cash  equivalents                          (1,504)          4           (836)      (2,353)          (493)        3,221
Cash and cash equivalents:
  Beginning of period                                  15,432      14,417         14,764       16,774         14,421        11,200
                                                     --------    --------      ---------    ---------      ---------     ---------
  End of period                                       $13,928     $14,421        $13,928     $ 14,421        $13,928       $14,421
                                                     ========     =======       ========     ========        =======       =======

Supplemental  disclosure  of cash flow  information  Cash paid during the period
  for:
     Interest                                         $ 5,884     $ 4,593        $13,900      $ 8,183        $16,863       $14,393
     Income taxes                                     $ 2,150     $ 3,450        $ 9,322      $ 9,250        $13,183       $12,450

</TABLE>

See  accompanying   notes  to  consolidated financial statements.

<PAGE>


                             BLACK HILLS CORPORATION

                   Notes to Consolidated Financial Statements
        (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 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. These financial statements should be
        read in conjunction with the financial statements and the notes thereto,
        included in the Company's 1998 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, 1999, December 31, 1998 and September 30, 1998,  financial
        information  and  are of a  normal  recurring  nature.  The  results  of
        operations  for the three,  nine and twelve  months ended  September 30,
        1999, are not  necessarily  indicative of the results to be expected for
        the full year.

(2)     Capital Stock

                In April 1999, the Board of Directors authorized the acquisition
        of up to  1,000,000  shares of the  Company's  Common  Stock on the open
        market to fund  possible  future  acquisitions  by the Company,  for its
        Employee  Stock Option Plan, and for other general  purposes.  The Board
        had  authorized a similar  purchase of 300,000  shares in April 1998. At
        September  30, 1999,  the Company had acquired  291,309  shares for such
        purposes.  The acquired  shares are  reflected as treasury  stock on the
        accompanying Consolidated Balance Sheets.

(3)     Net Income Per Share

                Financial  Accounting  Standards Board (FASB)  Statement No. 128
        "Earnings  Per Share"  requires  the  presentation  of basic 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):

<TABLE>
<CAPTION>

                                             Three Months Ended      Nine Months Ended        Twelve Months Ended
                                                  Sept 30               Sept 30                     Sept 30
                                               1999       1998        1999        1998          1999        1998
                                               ----       ----        ----        ----          ----        ----
<S>                                          <C>       <C>         <C>         <C>           <C>         <C>
Net Income                                   $9,725    $ 9,616     $26,519     $25,657       $26,669     $34,027
                                             ======    =======     =======     =======       =======     =======

Weighted average common shares outstanding:
      Basic                                  21,442     21,577      21,465      21,639        21,492      21,655
      Dilutive effect of option plan             52         56          41          37            31          29
                                          ---------  ---------   ---------   ---------     ---------   ---------
      Diluted                                21,494     21,633      21,506      21,676        21,523      21,684
                                             ======     ======      ======      ======        ======      ======

Earnings per share (Basic):                   $0.45      $0.45       $1.24       $1.19         $1.24       $1.57
                                              =====      =====       =====       =====         =====       =====
                           (Diluted):         $0.45      $0.44       $1.23       $1.18         $1.24       $1.57
                                              =====      =====       =====       =====         =====       =====
</TABLE>


(4)      Comprehensive Income

                  FASB  Statement  No. 130,  "Reporting  Comprehensive  Income,"
         establishes  standards  for  reporting  and  display  of  comprehensive
         earnings and its components in financial statements.  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 in the
         accompanying financial statements.

(5)      Summary of Information Relating to Segments of the Company's Business

                  Effective December 31, 1998 the Company adopted FASB Statement
         No.  131,  "Disclosure  About  Segments  of an  Enterprise  and Related
         Information."  Black Hills  Corporation's  business  segments  include:
         Electric  which  supplies  electric  utility  service to western  South
         Dakota,  northeastern Wyoming and southeastern  Montana;  Non-regulated
         Energy  consisting  of:  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;  and  Energy
         Marketing which markets natural gas, oil, coal and related  services to
         customers in the East Coast, Midwest,  Southwest,  Rocky Mountain, West
         Coast  and  Northwest  markets  and  Communications  and  Others  which
         primarily markets communications and software development services.




<PAGE>


Financial data for the business segments are as follows (in thousands):

<TABLE>
<CAPTION>

ASSETS                                         Non-regulated Energy
                                      ---------------------------------------
                                                      Oil         Energy        Communications
At September 30, 1999   Electric       Mining       and Gas     Marketing          & Others          Eliminations        Total
                      -------------- ------------ ------------ ------------- --------------------- ------------------ ------------
<S>                       <C>           <C>          <C>           <C>              <C>              <C>                  <C>
Current assets            $ 56,666      $50,843      $ 1,468      $122,879          $     11,696    $       (69,128)      $ 174,424
Total assets               473,118      126,565       31,503       137,322                56,464           (191,055)        633,917

At September 30, 1998
Current assets            $ 39,949      $23,054      $ 1,528      $ 65,183           $     8,483    $       (16,713)      $ 121,484
Total assets               453,582       98,374       34,983        74,139                16,259           (131,370)        545,967

</TABLE>

<TABLE>
<CAPTION>
                                                 Non-regulated Energy
                                       ---------------------------------------
Third Quarter                                          Oil         Energy        Communications
September 30, 1999        Electric       Mining       and Gas     Marketing          & Others          Eliminations         Total
                        -------------- ------------ ------------ ------------- --------------------- ------------------ -----------
<S>                      <C>             <C>          <C>          <C>           <C>                   <C>               <C>
Electric revenues         $ 36,425            -            -             -                     -                  -       $  36,425
Coal revenues                    -        8,076            -        12,331                     -                  -          20,407
Gas revenues                     -            -        1,341       117,427                     -                  -         118,768
Oil revenues                     -            -        1,273        42,167                     -                  -          43,440
Other revenues                   -            -          739             -                   791               (791)            739
                        -------------- ------------ ------------ ------------- --------------------- ------------------ -----------
Total revenues            $ 36,425      $ 8,076      $ 3,353    $  171,925        $          791      $        (791)      $ 219,779
                        -------------- ------------ ------------ ------------- --------------------- ------------------ -----------

Depreciation, depletion
 & amortization           $  3,768       $  871       $  861  $      2,097        $           35      $           -       $   7,632
Operating income (loss)     15,286        3,122        1,008        (1,464)               (1,277)                 -          16,675
Interest expense             3,396          315          131           197                   808                  -           4,847
Income taxes                 4,089        1,075          269          (531)                 (305)                 -           4,597
Net income (loss)            8,190        2,522          613        (1,032)                 (568)                 -           9,725
Property additions           7,887          261        1,267           152                13,496                  -          23,063

</TABLE>

<TABLE>
<CAPTION>
                                                 Non-regulated Energy
                                    ---------------------------------------
Third Quarter                                         Oil       Energy        Communications
September 30, 1998    Electric         Mining       and Gas    Marketing         & Others           Eliminations         Total
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
<S>                   <C>            <C>           <C>         <C>           <C>                   <C>                <C>
Electric revenues         $ 34,982            -            -             -                   -                    -       $  34,982
Coal revenues                    -        8,185            -         2,958                   -                    -          11,143
Gas revenues                     -            -        1,058        89,103                   -                    -          90,161
Oil revenues                     -            -        1,283        31,417                   -                    -          32,700
Other revenues                   -            -          858           314                 558                 (558)          1,172
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
Total revenues            $ 34,982      $ 8,185   $    3,199    $  123,792  $              558     $           (558)      $ 170,158
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------

Depreciation, depletion
 & amortization           $  3,797       $  859   $    1,292  $        169                   -                    -       $   6,117
Operating income (loss)     14,436        3,433          267          (147)               (386)                   -          17,603
Interest expense             3,407            5          105           190                   2                    -           3,709
Income taxes                 3,955        1,154          (38)          (88)                (81)                   -           4,902
Net income (loss)            7,110        2,680          203          (211)               (166)                   -           9,616
Property additions           2,267          167        3,288            22                 191                    -           5,935

</TABLE>
<TABLE>
<CAPTION>

                                                   Non-regulated Energy
                                       ---------------------------------------
Year To Date                                          Oil         Energy        Communications
September 30, 1999       Electric       Mining       and Gas     Marketing          & Others          Eliminations         Total
                      -------------- ------------ ------------ ------------- --------------------- ------------------ -------------
<S>                    <C>            <C>          <C>          <C>             <C>                 <C>                <C>
Electric revenues          $100,231            -            -             -                     -                  -      $ 100,231
Coal revenues                     -       22,832            -        31,422                     -                  -         54,254
Gas revenues                      -            -        3,846       289,832                     -                  -        293,678
Oil revenues                      -            -        3,317       120,462                     -                  -        123,779
Other revenues                    -            -        2,234             -                 2,171             (2,171)         2,234
                      -------------- ------------ ------------ ------------- --------------------- ------------------ -------------
Total revenues             $100,231      $22,832      $ 9,397    $  441,716  $              2,171   $         (2,171)     $ 574,176
                      -------------- ------------ ------------ ------------- --------------------- ------------------ -------------

Depreciation, depletion
 & amortization           $ 11,664      $ 2,583      $ 2,589  $      2,542   $                76    $             -      $   19,454
Operating income (loss)     39,017        9,374        2,321        (1,733)               (2,555)                 -          46,424
Interest income             10,100          730          414           566                 1,123                  -          12,933
Income taxes                 9,664        2,779          501          (701)                 (529)                 -          11,714
Net income (loss)           19,987        7,443        1,416        (1,344)                 (983)                 -          26,519
Property additions          12,577        3,125        5,741           245                31,367                  -          53,055
</TABLE>
<TABLE>
<CAPTION>
                                           Non-regulated Energy
                                    ---------------------------------------
Year To Date                                           Oil         Energy        Communications
September 30, 1998        Electric       Mining       and Gas     Marketing          & Others          Eliminations       Total
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
<S>                   <C>            <C>           <C>          <C>            <C>                 <C>                 <C>
Electric revenues         $ 96,810            -            -             -                     -                  -       $  96,810
Coal revenues                    -       23,956            -         2,958                     -                  -          26,914
Gas revenues                     -            -        3,228       264,292                     -                  -         267,520
Oil revenues                     -            -        3,913        87,160                     -                  -          91,073
Other revenues                   -            -        2,534           478                 1,801             (1,801)          3,012
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
Total revenues            $ 96,810      $23,956      $ 9,675    $  354,888  $              1,801   $         (1,801)      $ 485,329
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------

Depreciation, depletion
 & amortization           $ 11,392      $ 2,564      $ 4,075    $      470                     -                  -       $  18,501
Operating income (loss)     37,493        9,737          959        (1,359)                 (437)                 -          46,393
Interest income             10,191            5          231           549                     8                  -          10,984
Income taxes                 9,484        3,257           41          (620)                   34                  -          12,196
Net income (loss)           18,475        7,588          719        (1,112)                  (13)                 -          25,657
Property additions           7,569          686        7,766           112                    61                  -          16,194

</TABLE>


<PAGE>


<TABLE>
<CAPTION>

                                              Non-regulated Energy
                                    ---------------------------------------
Twelve Months Ended                                  Oil         Energy        Communications
September 30, 1999      Electric       Mining       and Gas     Marketing          & Others          Eliminations         Total
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
<S>                   <C>             <C>          <C>          <C>          <C>                   <C>                <C>
Electric revenues         $132,657            -           -              -                     -                  -       $ 132,657
Coal revenues                    -       30,289           -         41,388                     -                  -          71,677
Gas revenues                     -            -       4,690        400,996                     -                  -         405,686
Oil revenues                     -            -       4,534        150,487                     -                  -         155,021
Other revenues                   -            -       3,060              -                 2,806             (2,806)          3,060
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------
Total revenues            $132,657      $30,289   $  12,284     $  592,871  $              2,806   $         (2,806)      $ 768,101
                     -------------- ------------ ------------ ------------- --------------------- ------------------ --------------

Depreciation, depletion
 & amortization           $ 15,154      $ 3,271   $   3,728     $    2,760  $                102                 -        $  25,015
Oil and gas ceilings test
write-down                       -            -      13,546              -                     -                  -          13,546
Operating income (loss)     51,420       12,360     (10,978)          (490)               (3,050)                 -          49,262
Interest income             13,481          733         538            775                 1,129                  -          16,656
Income taxes                12,791        3,614      (4,229)          (261)                 (688)                 -          11,227
Net income (loss)           26,338        9,440      (7,279)          (642)               (1,188)                 -          26,669
Property additions          16,590        3,886       8,144            511                33,011                  -          62,142
</TABLE>

<TABLE>
<CAPTION>

                                            Non-regulated Energy
                                   ---------------------------------------
Twelve Months Ended                                  Oil         Energy        Communications
September 30, 1998      Electric       Mining       and Gas     Marketing          & Others          Eliminations        Total
                    -------------- ------------ ------------ ------------- --------------------- ------------------  --------------
<S>                  <C>            <C>           <C>          <C>           <C>                  <C>                 <C>
Electric revenues         $128,569            -            -             -                     -                  -       $ 128,569
Coal revenues                    -       31,030            -         2,958                     -                  -          33,988
Gas revenues                     -            -        4,277       323,781                     -                  -         328,058
Oil revenues                     -            -        5,307       116,842                     -                  -         122,149
Other revenues                   -            -        3,428           480                 2,100             (2,100)          3,908
                    -------------- ------------ ------------ ------------- --------------------- ------------------ ---------------
Total revenues            $128,569      $31,030      $13,012    $  444,061  $              2,100   $         (2,100)      $ 616,672
                    -------------- ------------ ------------ ------------- --------------------- ------------------ ---------------

Depreciation, depletion
 & amortization           $ 15,037      $ 3,325      $ 5,107  $        612                     -                  -       $  24,081
Operating income (loss)     49,678       12,224        1,591        (2,012)                 (592)                 -          60,889
Interest income             13,599            5          302           678                    10                  -          14,594
Income taxes                12,308        4,059          108          (883)                   33                  -          15,625
Net income (loss)           24,766        9,653        1,271        (1,660)                   (3)                 -          34,027
Property additions          12,272          647        9,235           258                   127                  -          22,539

</TABLE>


<PAGE>



(6)      Energy Trading and Risk Management Activities

                  Effective  January 1, 1999, the Company adopted the provisions
         in Emerging Issues Task Force 98-10, "Accounting for Contracts Involved
         in Energy Trading and Risk Management  Activities.  (EITF 98-10)." EITF
         requires  disclosure of energy trading and risk management activity for
         energy contracts used for trading purposes.  At September 30, 1999, the
         Company had  approximately  222,000 mmbtus of natural gas forward sales
         at a fixed  price,  and  approximately  256,000  tons  of coal  forward
         purchases at a fixed price, that were not offset by respective purchase
         and sales  contracts.  The market value of such contracts  approximates
         the fixed prices.

(7)      Rate Freeze Extension

                  The  Company's   electric  utility  operations  agreed  to  an
         extension of it's rate freeze for South Dakota retail  customers  until
         January 1, 2005, barring extraordinary circumstances.  The extension of
         the rate  freeze was  approved  by the South  Dakota  Public  Utilities
         Commission on June 22, 1999.

                  The   extraordinary   circumstances   allowing   future   rate
         proceedings  include  certain forced outages at its two largest plants,
         high  inflation,   loss  of  a  significant  customer,  new  government
         impositions, certain fuel cost increases and electric deregulation.

                  In addition,  the Company's  electric utility operations shall
         not have a fuel and purchased  power  adjustment  tariff,  except if an
         extraordinary event occurs. The electric utility also retains wholesale
         capacity  and energy  revenues,  has  assignment  rights for  wholesale
         contracts and may enter into certain  affiliate  transactions  with its
         affiliated  exempt wholesale  generator,  all subject to reasonableness
         and prudency review at future rate proceedings.

(8)      Accounting Pronouncements

                  In June, 1999, FASB issued  Statement of Financial  Accounting
         Standards No. 137  "Accounting  for Derivative  Instruments and Hedging
         Activities - Deferral of the Effective Date of FASB Statement No. 133."
         This  statement  delayed the effective  date of FASB  Statement No. 133
         until fiscal quarters beginning after June 15, 2000.

(9)      Energy Marketing Reorganization

                  In  September,   the  Company   reorganized  its  natural  gas
         marketing  operations.  The Houston wholesale gas marketing  operations
         were transferred into the Denver office and the Company recorded a $1.2
         million  after tax  non-cash  write-down  of  goodwill  related  to the
         Houston wholesale gas marketing operations.  In addition, on October 6,
         1999,  the  Company  sold  its  Rocky  Mountain  retail  gas  marketing
         operations to Western  Natural Gas Marketing,  LLC. The Company expects
         to record an after tax gain of approximately $1 million related to this
         sale in the fourth quarter.

(10)    Reclassifications

                Certain 1999 and 1998 amounts in the financial  statements  have
        been   reclassified   to  conform  to  the  1999   presentation.   These
        reclassifications did not affect the Company's stockholders'  investment
        or results of operations.





<PAGE>


           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  $44,000,000,
which provide for interim borrowings and the opportunity for timing of permanent
financing.  The Company had $23,200,000  outstanding under these lines of credit
on September 30, 1999. There are no compensating balance requirements associated
with these lines of credit.

        In addition to the above lines of credit,  Black Hills Energy Resources,
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, 1999,  Black Hills  Energy  Resources  has
approximately $35.3 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  September  30,  1999,  there were no
balances outstanding on this line of credit.

Market Risk Disclosures

        There has not been any significant changes in market risk since December
31, 1998.

     Commodity Risk

        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.

       Trading Activities

        For trading  transactions that do not qualify for hedge accounting,  the
Company utilizes marked-to-market accounting, and such financial instruments are
recorded at fair value with realized and unrealized gains (losses) recorded as a
component of income.  The quantities  and maximum terms of derivative  financial
instruments  held for trading  purposes at  September  30, 1999 and 1998 are not
significant to the Company's financial position or results of operations.


         Non-trading Activities

         The  notional  quantities  and maximum  terms of  derivative  financial
instruments held for non-trading activities at September 30, 1999, are presented
below:
<TABLE>
<CAPTION>

                                                                                Max. Term         Fair Value
                                                               Volume            (Years)        (in thousands)
<S>                                                            <C>               <C>               <C>
Natural Gas (Volume in MMBtu's):
     Natural gas futures contracts purchased                       820,000          2               $   338
     Natural gas basis swaps contracts bought                   17,739,000          3                   662
     Natural gas basis swaps contracts sold                    (17,846,000)         3                  (541)
     Natural gas swap contracts bought                          12,603,000          2                 2,130
     Natural gas swap contracts sold                           (14,326,000)         2                (2,151)
      Natural gas collar transactions; puts
         purchased, call sold                                      534,500          2               (46,325)
      Natural gas collar transactions; calls
         purchased, puts sold                                      534,500          2                47,875

Crude Oil (Volume in barrels):
     Crude oil puts purchased                                       24,000          1                     5
     Crude oil swap contracts sold                                (240,000)         2                  (692)
</TABLE>

        Because  these  contracts  are entered  into for hedging  purposes,  the
Company  expects that the gains (losses) will be offset by gains (losses) on the
underlying  physical  transactions;  such physical  transactions  are subject to
weather  trends,  transportation  and delivery  risks and other factors that the
Company  monitors on a regular basis.  The notional  amounts  detailed above are
intended  to  be  indicative  of  the  Company's   level  of  activity  in  such
derivatives.

     Interest Rate Risk

        The  Company's  exposure to market  risk for  changes in interest  rates
relates  primarily to the Company's  short-term  investments  and long-term debt
obligations.  The Company does not use derivative  financial  instruments in its
available for sale securities.

        At  September  30,  1999,  the effect of a 100 basis  point  increase in
interest  rates  does not have a  material  effect to the  Company's  results of
operations  or  financial  condition,  due to  the  short-term  duration  of the
investment portfolio.

        The Company has no cash flow  exposure due to rate changes for long-term
debt obligations.  The Company primarily enters into debt obligations to support
general corporate  purposes  including capital  expenditures and working capital
needs.



Results of Operations

        Black  Hills  Corporation  is  an  energy  and  communications   company
consisting  of  three  principal  businesses:  electric  utility,  non-regulated
energy, and communications.



<PAGE>


        Consolidated  net income was  $10,889,000  for the three  months  ended,
$27,683,000  for the nine months  ended and  $36,633,000  for the twelve  months
ended September 30, 1999 (before non-cash charges),  representing an increase of
13 percent  for the three  month  period  and 8 percent  for the nine and twelve
month  periods.  The increases  were  primarily due to strong  electric  utility
income  and   non-regulated   energy  results   partially   offset  by  expected
communications  start-up losses.  In September 1999, the Company recorded a $1.2
million  after tax  charge  primarily  due to a non-cash  write-down  of certain
intangible assets associated with the natural gas operations in Houston,  Texas.
In  December  1998,  the  Company  recorded  an $8.8  million  after tax  charge
primarily  due to a non-cash  write-down  of certain oil and natural gas assets.
Consolidated  revenues and fuel and purchased  power  expense  increased for the
three,  nine and  twelve  months  ended  September  30,  1999  primarily  due to
increased  oil,  natural  gas and coal  purchases  and  sales  from  the  energy
marketing operations.

        Consolidated  revenue and income from continuing  operations provided by
the business segments as a percentage of the total were as follows:
<TABLE>
<CAPTION>
                                       Three Months Ended         Nine Months Ended          Twelve Months Ended
                                         September 30               September 30                September 30
                                       1999       1998             1999        1998            1999        1998
                                       ----       ----             ----        ----            ----        ----
<S>                                    <C>         <C>              <C>         <C>            <C>          <C>
Revenues
Electric utility                         17%        21%              18%         20%             17%         21%
Non-regulated energy                     83         79               82          80              83          79
                                        ----       ----             ----        ----            ----        ----
                                        100%       100%             100%        100%            100%        100%
                                        ===        ===             ====         ===             ===         ===

Net Income/(Loss)
Electric utility                         75%        74%              72%         72%             72%         73%
Non-regulated energy                     30*        28               31*         28              31*         27
Communications and other                 (5)        (2)              (3)          -              (3)          -
                                        ----       ----             ----        ----            ----        ----
                                        100%       100%             100%        100%            100%        100%
                                        ===        ===              ===         ===             ===         ===
</TABLE>

         *Excludes  $10.0  million  (net-of-tax)  write-down  of certain oil and
natural gas properties  (December 1998) and certain intangible assets (September
1999)

         Capital expenditures and depreciation,  depletion,  and amortization by
business segment were as follows (in thousands):
<TABLE>
<CAPTION>

                                       Three Months Ended         Nine Months Ended         Twelve Months Ended
                                        September 30                 September 30               September 30
                                       1999       1998             1999        1998            1999        1998
                                       ----       ----             ----        ----            ----        ----
<S>                                  <C>        <C>             <C>          <C>             <C>        <C>
Capital Expenditures (includes AFDC)
Electric utility                     $7,887     $2,267         $ 12,577      $7,569         $16,590     $12,272
Non-regulated energy                  1,680      3,477            9,111       8,564          12,541      10,140
Communications and other             13,496        191           31,367          61          33,011         127
                                    -------     ------          -------     -------         -------     -------
                                    $23,063     $5,935          $53,055     $16,194         $62,142     $22,539
                                    =======     ======          =======     =======         =======     =======

                                       Three Months Ended         Nine Months Ended          Twelve Months Ended
                                        September 30                September 30                September 30
                                       1999       1998             1999        1998            1999        1998
                                       ----       ----             ----        ----            ----        ----
Depreciation, Depletion,
  and Amortization
Electric utility                     $3,768     $3,797          $11,664     $11,392         $15,154     $15,037
Non-regulated energy                  3,829      2,320            7,714       7,109           9,759       9,044
Oil and gas ceilings test
  write-down                              -          -                -           -          13,546           -
Communications and others                35          -               76           -             102           -
                                    -------     ------          -------     -------         -------     -------
                                     $7,632     $6,117          $19,454     $18,501         $38,561     $24,081
                                    =======     ======          =======     =======         =======     =======
</TABLE>

Electric Operations

        Earnings from electric operations increased  $1,080,000,  $1,512,000 and
$1,572,000  for the three,  nine and twelve month periods  ending  September 30,
1999  respectively.  Total  kilowatthour sales increased 5 percent for the three
month  period  and 4  percent  for the  nine and  twelve  month  periods  due to
increased residential,  commercial, wholesale and off-system sales. Degree days,
a measure of weather  trends,  were 3 percent  higher for the three month period
and 4 percent  and 7 percent  lower for the nine and  twelve  month  periods  as
compared to the prior  periods.  Increased  revenues  were  partially  offset by
increased operations and maintenance expenses due to planned plant outages.


Non-regulated Energy Operations

        Earnings  from  non-regulated   energy  operations  increased  $595,000,
$1,540,000 and $2,220,000 for the three months,  nine months,  and twelve months
ended September 30, 1999 (excluding a $1.2 million  non-cash  charge)  primarily
due to stable  coal  mining  earnings,  strong oil and  natural  gas  production
earnings and improved energy marketing results.

         Earnings from oil and gas  operations  increased  $410,000 and $697,000
for the three  months and nine months  ended  September  30, 1999 and  increased
$250,000  (excluding  write-down  of certain  oil and gas assets) for the twelve
months ended  September 30, 1999, as compared to 1998.  Increased  earnings were
primarily  due to  increased  oil prices,  increased  gas  production  and lower
depletion expense. Production increased 7 percent, 11 percent and 12 percent for
the three, nine and twelve month periods. Oil prices increased 70 percent and 20
percent for the three and nine month periods, and were flat for the twelve month
period.  Gas prices decreased 9 percent for the three and nine month periods and
15 percent for the twelve month period.  Average gas prices decreased  primarily
due to the production increases in lower price and lower cost Montana properties
for the three and nine month periods.

         In December 1998, Black Hills  Exploration and Production  recognized a
$13,546,000  pretax loss related to a write-down of oil and gas properties.  The
write-down was primarily due to historically low crude oil prices, lower natural
gas prices and decline in value of certain unevaluated properties.  Absent other
factors  impacting  depletion  expense,  the Company  expects  future  depletion
expense per unit of production to be reduced because of this write-down.

         Earnings  from  energy   marketing   operations   increased   $343,000,
$1,025,000 and  $2,182,000  for the three,  nine and twelve month periods ending
September 30, 1999  (excluding a $1.2 million  write-down of certain  intangible
assets).  The  increase  was  primarily  due to  increased  margins  and volumes
marketed  in the natural gas and crude oil  partially  offset by adverse  market
conditions in coal marketing.

        The energy marketing  operations  marketed 533,000 mmbtus of gas, 18,400
barrels of oil and 5,500 tons of coal per day in the three  month  period  ended
September 30, 1999 and 482,700  mmbtus and 22,700  barrels per day for the three
month  period  ended  September  30, 1998.  For the nine month  period,  513,000
mmbtus,  19,000  barrels and 4,800 tons were marketed in 1999 and 453,000 mmbtus
and 18,100  barrels were  marketed in 1998.  For the twelve month period  ending
September 30, 1999,  524,000 mmbtus,  20,000 barrels and 4,700 tons per day were
marketed  as  compared  to 418,000  mmbtus and 16,800  barrels of oil per day in
1998.  The Company  acquired its coal  marketer,  Black Hills Coal  Network,  in
September 1998.


Communications Operations

         Deployment continues on the state of the art communications  network in
Rapid  City and the  northern  Black  Hills of South  Dakota.  Installation  and
testing  of CATV,  telephone  switching  and  communications  transport  systems
continues to progress in line with management's expectations.  The company began
serving customers, on a test basis, in the third quarter. The company expects to
increase  customer  additions  throughout the remainder of 1999 and complete its
initial  build-out by the end of 2000.  Losses for the three month,  nine month,
and twelve month periods ended September 30, 1999 primarily  represent  start-up
administrative   and  operating   expenses  and  were  lower  than  management's
expectations.   Increased   Materials,   supplies  and  fuel  and  Property  and
investments  on  the  Consolidated  Balance  Sheets  related  primarily  to  the
continuing development of the communications network.


Year 2000 Issues

         What is referred to as the Year 2000 problem  ("Year 2000  problem") is
the result of computer  programs being written using two digits rather than four
to define the applicable  year. Any of the Company's  computer  process  control
systems that have date-sensitive software may recognize a date using "00" as the
Year 1900 rather than the Year 2000.  This could  result in a system  failure or
miscalculations  causing  disruptions  of  operations,  including,  among  other
things, a temporary inability to process transactions,  send invoices, or engage
in similar normal business  activities.  Management had previously formed a Year
2000  Committee  to review  and  ensure the  Company's  compliance  with what is
commonly  known as the  "Year  2000  problem".  In  addition,  consultants  have
reviewed the Company's  state of readiness.  The  Company's  review  encompassed
supporting  information  technology  systems,  generation  control  systems  and
distribution  systems,  and business  supply chain  systems and  infrastructure.
Management presently believes that with modifications that have been made to the
Company's  existing software and/or  conversions to new software,  the Year 2000
problem has been mitigated.  The cost of either  repairing or replacing  certain
business systems to ensure business  continuance beyond Year 2000 did not have a
significant  impact  on the  results  of  operations.  The cost of the Year 2000
project is less than $1 million  and is funded  through  operating  cash  flows.
These costs are  primarily  attributable  to the  purchase of new  software  and
equipment  which are  expensed or  capitalized  on a basis  consistent  with the
Company's   accounting   policies  for  capital   assets.   Other  than  seeking
representations  and  assurances,  the Company has not made an  assessment as to
whether any of its customers, suppliers or service providers will be affected by
the date change.  The  Company's  business,  financial  condition and results of
operations may be adversely impacted should the efforts of customers,  suppliers
or service  providers for the Company to address the Year 2000 issue prove to be
inadequate.  The Company's risk management program includes emergency backup and
recovery   procedures   to  be   followed   in  the  event  of   failure   of  a
business-critical  system.  These  procedures  include  specific  procedures for
potential Year 2000 issues.  Contingency plans to protect the business from Year
2000-related  interruptions  were  completed in October  1999 and  include,  for
example,   complete  backup   procedures  for  business   critical   operations,
identification of alternate suppliers and possible increases in safety inventory
levels.


Forward Looking Statements

         The above  information  includes  forward-looking  statements  that are
subject to certain risks,  uncertainties  and assumptions.  Although  management
believes that its expectations are based on reasonable assumptions,  it can give
no  assurances  that its goals  will be  achieved.  Actual  results  may  differ
materially  from  management's  expectations as a result of a variety of factors
including,  but not necessarily limited to, technological  changes,  regulation,
market  conditions and marketing  success,  general economic  conditions,  and a
changing competitive environment.




<PAGE>


         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, 1999.

Item 6.       Exhibits and Reports on Form 8-K

             a.       Exhibits

                      Annual Report on Form 11-K of the Black Hills Corporation
                      401K Plan

             b.       Reports on Form 8-K

                      None

<PAGE>


                             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 - Finance
                            (Principal Financial Officer)


                            /s/ Mark T. Thies
                            Mark T. Thies, Controller
                           (Principal Accounting Officer)


Dated:   November 12, 1999



<TABLE> <S> <C>

<ARTICLE>                                          UT

<S>                                                         <C>
<PERIOD-TYPE>                                                       9-MOS
<FISCAL-YEAR-END>                                             DEC-31-1999
<PERIOD-END>                                                  SEP-30-1999
<BOOK-VALUE>                                                     PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                     332,035,000
<OTHER-PROPERTY-AND-INVEST>                                    96,898,000
<TOTAL-CURRENT-ASSETS>                                        174,424,000
<TOTAL-DEFERRED-CHARGES>                                                0
<OTHER-ASSETS>                                                 30,560,000
<TOTAL-ASSETS>                                                633,917,000
<COMMON>                                                       21,736,000
<CAPITAL-SURPLUS-PAID-IN>                                      40,588,000
<RETAINED-EARNINGS>                                           157,343,000
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                213,255,000
                                                   0
                                                             0
<LONG-TERM-DEBT-NET>                                          160,700,000
<SHORT-TERM-NOTES>                                             25,291,000
<LONG-TERM-NOTES-PAYABLE>                                               0
<COMMERCIAL-PAPER-OBLIGATIONS>                                          0
<LONG-TERM-DEBT-CURRENT-PORT>                                   1,330,000
                                               0
<CAPITAL-LEASE-OBLIGATIONS>                                             0
<LEASES-CURRENT>                                                        0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                233,341,000
<TOT-CAPITALIZATION-AND-LIAB>                                 633,917,000
<GROSS-OPERATING-REVENUE>                                     574,176,000
<INCOME-TAX-EXPENSE>                                           11,714,000
<OTHER-OPERATING-EXPENSES>                                    527,752,000
<TOTAL-OPERATING-EXPENSES>                                    539,466,000
<OPERATING-INCOME-LOSS>                                        34,710,000
<OTHER-INCOME-NET>                                              4,742,000
<INCOME-BEFORE-INTEREST-EXPEN>                                 39,452,000
<TOTAL-INTEREST-EXPENSE>                                       12,933,000
<NET-INCOME>                                                   26,519,000
                                             0
<EARNINGS-AVAILABLE-FOR-COMM>                                  26,519,000
<COMMON-STOCK-DIVIDENDS>                                       16,950,000
<TOTAL-INTEREST-ON-BONDS>                                       9,888,000
<CASH-FLOW-OPERATIONS>                                         42,020,000
<EPS-BASIC>                                                        1.24
<EPS-DILUTED>                                                        1.23




</TABLE>





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



                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 11-K

                                  ANNUAL REPORT
                        PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


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




                   For the fiscal year ended December 31, 1999


                          Commission File Number 1-7978


                             BLACK HILLS CORPORATION
                          401K RETIREMENT SAVINGS PLAN


                             BLACK HILLS CORPORATION
                                625 NINTH STREET
                                   PO BOX 1400
                         RAPID CITY, SOUTH DAKOTA 57709


- -----------------------------------------------------------------------------
<PAGE>


                Black Hills Corporation Retirement Savings Plan
                           Financial Statements as of
                           December 31, 1998 and 1997
                            Together With Report of
                         Independent Public Accountants


<PAGE>




<PAGE>


                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

            Index to Financial Statements and Supplemental Schedules




                                                                           Page
Report of Independent Public Accountants                                      1
- -------------------------------------------------------------------------------
Statements of Net Assets Available for Benefits                               2
- -------------------------------------------------------------------------------
Statement of Changes in Net Assets Available for Benefits                     4
- -------------------------------------------------------------------------------
Notes to Financial Statements                                                 5
- -------------------------------------------------------------------------------
Item 27a--Schedule of Assets Held for Investment Purposes                    10
- -------------------------------------------------------------------------------
Item 27d--Schedule of Reportable Transactions                                12
- -------------------------------------------------------------------------------
Item 27f--Schedule of Nonexempt Transactions                                 13




<PAGE>




                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS



To the Plan Administrator of
Black Hills Corporation Retirement Savings Plan:

We have audited the accompanying statements of net assets available for benefits
of the Black Hills Corporation  Retirement  Savings Plan as of December 31, 1998
and 1997,  and the  related  statement  of changes in net assets  available  for
benefits for the year ended December 31, 1998.  These  financial  statements and
the schedules referred to below are the responsibility of the Plan's management.
Our  responsibility  is to express an opinion on these financial  statements and
supplemental schedules based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects,  the net assets available for benefits of the Black Hills
Corporation  Retirement  Savings Plan as of December 31, 1998 and 1997,  and the
changes in net assets  available  for benefits  for the year ended  December 31,
1998, in conformity with generally accepted accounting principles.






Minneapolis, Minnesota,
   August 6, 1999



<PAGE>



                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

                 Statement of Net Assets Available for Benefits

                             As of December 31, 1998

<TABLE>
<CAPTION>

                                          Guaranteed        Fixed                                        Foreign &      Growth Stock
                                          Investment        Income     Balanced Mutual   Equity        Global Mutual    Mutual Funds
                                        Contract Trust   Mutual Funds        Fund     Collective Trust     Funds
<S>                                       <C>              <C>             <C>            <C>             <C>             <C>
- -----------------------------------------------------------------------------------------------------------------------------------
INVESTMENTS, at market value (Note 2):

   Collective trusts                       $2,729,500       $      -       $        -     $3,631,468      $        -      $        -

   Mutual funds                                     -        823,962        1,197,186              -       2,694,519       2,957,797

   Common stocks                                    -              -                -              -               -               -

   Self-directed accounts                           -              -                -              -               -               -

PARTICIPANT LOANS                                   -              -                -              -               -               -

CONTRIBUTIONS RECEIVABLE:

   Participant contributions receivable             -              -               -               -               -               -

   Participant contributions--loan payments
      in-transit                                    -              -               -               -               -               -

NET ASSETS AVAILABLE FOR BENEFITS           $2,729,500      $823,962      $1,197,186      $3,631,468      $2,694,519      $2,957,797

</TABLE>


<TABLE>
<CAPTION>

                                                Other       Black Hills
                                             Specialized    Corporation     Self-Directed
                                             Mutual Funds   Common Stock      Accounts      Participant   Contributions
                                                                                               Loans       Receivable      Total
<S>                                            <C>          <C>             <C>            <C>            <C>           <C>
- ----------------------------------------------------------------------------------------------------------------------------------
INVESTMENTS, at market value (Note 2):

   Collective trusts                           $      -     $        -      $     -        $      -       $     -       $ 6,360,968

   Mutual funds                                 155,655              -            -               -             -         7,829,119

   Common stocks                                      -      7,210,038            -               -             -         7,210,038

   Self-directed accounts                             -              -       92,234               -             -            92,234

PARTICIPANT LOANS                                     -              -            -         820,244             -           820,244

CONTRIBUTIONS RECEIVABLE:

   Participant contributions receivable               -              -            -               -         5,446             5,446

   Participant contributions--loan payments
      in-transit                                      -              -            -               -        66,258            66,258

NET ASSETS AVAILABLE FOR BENEFITS              $155,655     $7,210,038      $92,234        $820,244       $71,704       $22,384,307

</TABLE>


The accompanying  notes are an integral part of this statement.


<PAGE>





                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

                 Statement of Net Assets Available for Benefits

                             As of December 31, 1997

<TABLE>
<CAPTION>
                                  American                           Investment
                                Express Income                        Company of         New            American
                                    Fund           AMCAP Fund       America Fund      Perspective     Balanced Fund
                                                                                         Fund
<S>                                <C>              <C>              <C>               <C>              <C>
- --------------------------------------------------------------------------------------------------------------------
INVESTMENTS, at market value:

   Mutual funds                   $2,575,405       $3,233,585        $2,958,270        $2,435,361       $1,242,120

   Common stock                            -                -                 -                 -                -

PARTICIPANT LOANS                          -                -                 -                 -                -

RECEIVABLES:

   Contributions from participants     8,126           14,629            19,234            15,732            8,131

   Loan payments from participants     8,290            5,755             5,185             4,380            2,161

NET ASSETS AVAILABLE FOR BENEFITS $2,591,821       $3,253,969        $2,982,689        $2,455,473       $1,252,412

</TABLE>

<PAGE>


<TABLE>
<CAPTION>
                                 Black Hills                        Participant
                                 Corporation                     Contribution/Loan
                                 Common Stock     Participant    Payment Receivable
                                                    Loans                            Total
<S>                               <C>             <C>             <C>             <C>
- ---------------------------------------------------------------------------------------------
INVESTMENTS, at market value:

   Mutual funds                   $        -      $      -       $     -          $12,444,741

   Common stock                    6,254,700             -             -            6,254,700

PARTICIPANT LOANS                          -       819,813             -              819,813

RECEIVABLES:

   Contributions from participants         -             -         12,802              78,654

   Loan payments from participants         -             -          7,133              32,904

NET ASSETS AVAILABLE FOR BENEFITS  $6,254,700      $819,813       $19,935         $19,630,812


</TABLE>


The accompanying  notes are an integral part of this statement.


<PAGE>



                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

            Statement of Changes in Net Assets Available for Benefits

                      For the Year Ended December 31, 1998


<TABLE>
<CAPTION>
                                                                                                                          Other
                                  Guaranteed     Fixed Income                 Equity        Foreign &     Growth Stock  Specialized
                                   Investment    Mutual Funds    Balanced    Collective    Global Mutual  Mutual Funds  Mutual Funds
                                 Contract Trust                Mutual Fund     Trust          Funds
<S>                               <C>           <C>           <C>            <C>             <C>            <C>           <C>
- -----------------------------------------------------------------------------------------------------------------------------------
NET ASSETS AVAILABLE FOR BENEFITS,
   beginning of year
                                  $        -    $      -      $        -     $       -       $       -      $       -      $      -

INCREASES (DECREASES) DURING THE YEAR:

      Participant contributions
                                     154,219      71,368           89,020      244,107         177,881        269,043        21,056

      Investment interest and dividends
                                     172,652      58,513           75,565       10,066         182,491         68,605         3,316

      Net appreciation (depreciation) in market value of investments

                                      (8,528)    (13,425)          (7,391)     761,318         104,157       (602,127)       12,295

      Net realized gain (loss) on sale of investments
                                           -       2,182           12,521       82,491          69,445        (41,322)       (1,212)

      Interfund transfers          2,569,532     760,845        1,030,329    2,617,449       2,184,209      3,416,954       121,105

      Administrative expenses           (714)        (48)            (165)        (445)           (249)          (618)          (23)

               Total increases (decrease)
                                   2,887,161     879,435        1,199,879    3,714,986       2,717,934      3,110,535       156,537

DISTRIBUTIONS TO PARTICIPANTS
                                    (157,661)    (55,473)          (2,693)     (83,518)        (23,415)      (152,738)         (882)

NET INCREASE (DECREASE) IN NET ASSETS
                                   2,729,500      823,962       1,197,186    3,631,468       2,694,519      2,957,797       155,655

NET ASSETS AVAILABLE FOR BENEFITS, end of year
                                  $2,729,500     $823,962      $1,197,186   $3,631,468      $2,694,519     $2,957,797      $155,655

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

                                 Black Hills                              Contributions    American      American Funds
                                 Corporation   Self-Directed  Participant  Receivable    Express Income  Mutual Funds  Total
                                 Common Stock     Accounts       Loans                      Fund

<S>                                 <C>            <C>            <C>         <C>          <C>           <C>          <C>
- ----------------------------------------------------------------------------------------------------------------------------------
NET ASSETS AVAILABLE FOR BENEFITS,
   beginning of year
                                   $6,254,700      $     -       $819,813    $19,935      $2,591,821     $9,944,543   $19,630,812

INCREASES (DECREASES) DURING THE YEAR:

      Participant contributions       196,841            -              -     71,704              -              -      1,295,239

      Investment interest and dividends
                                      280,940          592              -          -              -              -        852,740

      Net appreciation (depreciation) in market value of investments

                                      755,130            -              -          -              -              -      1,001,429

      Net realized gain (loss) on sale of investments
                                        4,214            -              -          -          8,528         44,332        181,179

      Interfund transfers            (191,342)      91,642          8,436    (19,935)    (2,600,349)    (9,988,875)             -

      Administrative expenses            (988)           -              -          -              -              -         (3,250)

               Total increases (decreases)
                                    1,044,795       92,234          8,436     51,769     (2,591,821)    (9,944,543)     3,327,337

DISTRIBUTIONS TO PARTICIPANTS
                                      (89,457)           -         (8,005)         -              -              -       (573,842)

NET INCREASE (DECREASE) IN NET ASSETS
                                      955,338       92,234            431     51,769     (2,591,821)    (9,944,543)     2,753,495


NET ASSETS AVAILABLE FOR BENEFITS, end of year
                                   $7,210,038      $92,234       $820,244    $71,704    $        -     $        -     $22,384,307

</TABLE>




The accompanying  notes are an integral part of this statement.



<PAGE>




                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

                          Notes to Financial Statements

                           December 31, 1998 and 1997


1.   Description of the Plan:

General

The Black  Hills  Corporation  Retirement  Savings  Plan (the Plan) is a defined
contribution plan for eligible employees of Black Hills Power and Light Company,
the assumed  business  name of the electric  utility of Black Hills  Corporation
(the  Company);  Wyodak  Resources  Development  Corp.  (WRDC),  a wholly  owned
subsidiary of the Company;  Black Hills  Exploration  and  Production,  a wholly
owned  subsidiary of WRDC;  and Black Hills Energy  Resources,  Inc.,  Varifuel,
Inc., Black Hills FiberCom,  Inc.,  Daksoft,  Inc. and Black Hills Coal Network,
Inc. (all wholly owned subsidiaries of Black Hills Capital Group, Inc., a wholly
owned subsidiary of WRDC). The eligible employees may have a percentage of their
compensation  withheld and contributed to the Plan,  subject to limitations,  as
defined. The Plan is designed to comply with the provisions of Section 401(k) of
the Internal Revenue Code (the Code).

Effective  January 1, 1998,  the board of directors  of the Company  adopted the
Merrill Lynch special prototype defined  contribution plan and appointed Merrill
Lynch as the asset  custodian  and  recordkeeper.  The Black  Hills  Corporation
Benefits  Committee  (the  Committee)  was  appointed  the  trustee of the Plan,
replacing the risk manager of the Company as trustee.  Also effective January 1,
1998, the risk manager was appointed  administrator  of the Plan,  replacing the
Committee  as  administrator.  Administrative  fees of $10,500  were paid by the
Company in 1998.

In January 1998, in connection with the adoption of the prototype plan, funds of
the Plan (other than Black Hills  Corporation  common stock) were liquidated and
invested in other mutual funds having similar investment objectives.

The following is not a  comprehensive  description  of the Plan and,  therefore,
does  not  include  all  situations  and   limitations   covered  by  the  Plan.
Participants should refer to the plan agreement for more complete information.

Eligibility

Employees  are  eligible  to  participate  in  the  Plan  on  the  first  day of
employment.

Contributions

The maximum percentage of compensation an employee may contribute to the Plan is
20%, with an annual maximum  contribution of $10,000 in 1998 and $9,500 in 1997,
as provided by the Code.  There is no limit to the number of times  participants
may change their contribution  percentages.  Amounts contributed are invested at
the  discretion of plan  participants  in any one of the 22  investment  options
described in Note 2.

All  contributions  made and any  earnings  therefrom  are  fully  vested to the
participant at all times. The Company does not contribute to the Plan.

The Plan received  $101,239 in rollover  transfers from other qualified plans in
1998,  which are  included in  participant  contributions  on the  statement  of
changes in net assets available for benefits.

Distributions

Upon  termination  of  employment,  a  participant  may elect to have an account
distributed.  A terminated  participant  whose account balance is $5,000 or less
will  receive  a  nonelective   lump-sum   distribution  of  their  account.  No
distribution of a  participant's  account shall be made while the participant is
an active employee of the Company unless a financial hardship, as defined by the
Code and demonstrated to the plan administrator, exists.

The normal form of distributions of account balances is a lump sum. Participants
may elect,  at the time of  distribution,  the option of having payments made in
installments  over a period not to exceed the  expected  future  lifetime of the
participant  (or the joint expected  future  lifetime of the participant and the
participant's spouse).

Participant Loans

The Plan contains a loan provision  which allows  participants to borrow up to a
maximum  equal to the lesser of $50,000 or 50% of their  account  balances at an
interest  rate of 1% over the prime  interest rate and to repay the loan through
payroll deductions,  with a maximum repayment period of five years. During 1998,
interest  rates on  participant  loans  ranged  from  8.75% to 9.5%.  Loans  are
prohibited for terminated employees.

Amendments and Termination

The Company  reserves the right to amend or terminate the Plan at any time. Upon
termination of the Plan, all assets will be distributed  among the  participants
in accordance with plan provisions.

2.   Summary of Significant Accounting Policies:

Basis of Accounting

The accompanying financial statements have been prepared using the accrual basis
of accounting.

Investments

The  investment  options of the Plan at December 31, 1998 consist of deposits in
collective  trusts of Merrill Lynch,  mutual funds,  common stock of the Company
and self-directed  accounts.  Units (shares) of the various investment funds are
valued daily at net asset value (which equals market value).

The investment options are  participant-directed.  Participants may change their
investment elections daily.

The investment options are grouped as follows:

     Guaranteed Investment Contract Trust

     Merrill Lynch Retirement  Preservation  Trust--This  trust seeks to provide
     preservation  of capital  liquidity  and current  income at levels that are
     typically  higher than money market funds.  The trust is a collective trust
     which invests primarily in guaranteed investment contracts (the investments
     are neither insured nor guaranteed by the U.S. government).

     Fixed Income Mutual Funds

     PIMCO Total Return  Fund--This  fund seeks to provide maximum total return,
     consistent with preservation of capital and prudent investment  management,
     and invests primarily in an intermediate-term portfolio of investment-grade
     bonds.

     Federated  International  Income  Fund--This  fund seeks to provide current
     income; capital growth is a secondary objective.  The fund invests at least
     65% of assets in high-quality foreign currency-denominated debt securities.

     Van  Kampen  Worldwide  High  Income  Fund  (formerly  the  Morgan  Stanley
     Worldwide High Income Fund)--This fund seeks to provide high current income
     consistent  with relative  stability of principal and potential for capital
     appreciation,  and invests  primarily in  higher-yielding  emerging  market
     fixed-income securities of issues through the world.

     Oppenheimer  U.S.  Government  Fund--This  fund  seeks  current  income and
     preservation of capital and normally invests at least 80% of assets in U.S.
     government securities and related repurchase agreements.

     Balanced Mutual Fund

     Merrill Lynch Capital  Fund--This  fund seeks the highest total  investment
     return  consistent  with product  risk,  primarily  through a fully managed
     investment policy that permits management of the fund to vary investment in
     equity, debt and convertible  securities based on its evaluation of changes
     in economic and market trends.  The fund may invest up to 25% of its assets
     in foreign securities.

     Equity Collective Trust

     Merrill Lynch Equity Index  Trust--This  trust seeks to provide  investment
     results that, before expenses, replicate the total return of the Standard &
     Poor's 500 Composite Stock Price Index.  The fund is a collective  trust in
     which most of the assets  will be  comprised  of all, or nearly all, of the
     500 stocks in the index in  weightings  closely  aligned  with those of the
     index.

     Foreign & Global Mutual Funds

     Managers  International  Equity  Fund--This fund seeks to achieve long-term
     capital appreciation  through a diversified  portfolio of equity securities
     of non-U.S.  companies.  The fund  generally  invests in  companies  having
     medium and large capitalizations.

     Oppenheimer Global Fund--This fund seeks capital  appreciation by investing
     primarily in common stocks and  convertible  securities  issued by U.S. and
     foreign companies.

     Growth Stock Mutual Funds

     Davis New York Venture Fund--This fund seeks growth of capital by investing
     primarily in common stock of U.S. companies with market  capitalizations of
     at least $5 billion.

     Merrill  Lynch  Growth   Fund--This  fund  seeks  growth  of  capital  and,
     secondarily,  income by  investing  in common  stock,  preferred  stock and
     convertible securities.

     Alliance  Quasar  Fund--This  fund seeks  growth of capital by investing in
     equity  securities  that offer the  possibility of  above-average  earnings
     growth and currently emphasizes investment in companies having small levels
     of capitalization.

     Other Specialized Mutual Funds

     Davis  Convertible  Securities  Fund--This  fund seeks growth and income by
     investing in common and convertible stocks of U.S. companies.

     Van Kampen Real Estate Securities Fund--This fund seeks long-term growth of
     capital,  with  current  income  as  a  secondary  objective,  and  invests
     primarily  in  securities  of the real estate  industry,  including  common
     stocks and real estate investment trusts.

     Merrill Lynch Pacific Fund--This fund seeks long-term capital  appreciation
     and normally invests at least 80% of assets in equities issued by companies
     domiciled in far-eastern or western Pacific countries.

     Munder  Framlington  Healthcare  Fund--This  fund seeks  long-term  capital
     appreciation  by investing  primarily in equity  securities  of issuers for
     whom at least  50% of  sales,  profits  or net  assets  arise  from  health
     services or medical technology activities.

     Oppenheimer  Gold  and  Special  Minerals  Fund--This  fund  seeks  capital
     appreciation by normally investing between 80% and 100% of assets in mining
     securities and metals investments.

     State Street  Research  Global  Resources  Fund--This fund seeks to provide
     long-term  growth of capital by  normally  investing  at least 65% of total
     assets in securities of energy and natural resources companies,  as well as
     utilities. The fund invests primarily in stocks, including foreign stocks.

     Pioneer  Europe  Fund--This  fund  seeks  long-term  growth of  capital  by
investing primarily in equity securities of European issuers.

     Seligman  Communications  and  Information  Fund--This  fund seeks  capital
     appreciation by normally  investing at least 80% of assets in common stocks
     issued by companies  that  operate in the  communication,  information  and
     related industries.

     Black Hills Corporation Common Stock

     The Company's  common stock is valued daily based upon the closing price on
the New York Stock Exchange.

     Self-Directed Accounts

     Participants  may elect to invest a portion  or all of their  account  in a
     self-directed  brokerage  account with  Merrill  Lynch.  The  self-directed
     account allows  participants to purchase and hold  investments that are not
     part of the Plan's regular investment menu.  Investment options are subject
     to qualified plan restrictions as specified by the Code.

In January 1998,  funds at the American  Funds Group invested in the AMCAP Fund,
the  Investment  Company  of  America  Fund,  the New  Perspective  Fund and the
American Balanced Fund were liquidated and invested in other mutual funds having
similar investment objectives.

3.   Tax Status:

The Plan obtained its latest determination letter on June 19, 1991, in which the
Internal  Revenue  Service  stated  that  the  Plan,  as then  designed,  was in
compliance  with the  applicable  requirements  of the  Code.  The Plan has been
amended  since   receiving  the   determination   letter;   however,   the  plan
administrator  and the Plan's legal  counsel  believe that the Plan is currently
designed and being operated in compliance  with the applicable  requirements  of
the Code.  Therefore,  no provision  for income  taxes has been  included in the
Plan's financial statements.


<PAGE>


                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

         (Employer Identification Number: 46-0111677) (Plan Number: 003)

            Item 27a--Schedule of Assets Held for Investment Purposes

                             As of December 31, 1998
<TABLE>
<CAPTION>

    Number of
 Shares of Units         Description                              Cost          Market Value


                   GUARANTEED INVESTMENT CONTRACT TRUST:
        <S>        <C>                                          <C>             <C>

        2,719,480  Merrill Lynch Retirement Preservation Trust  $ 2,729,500     $ 2,729,500
                                                                -----------     ------------

                   FIXED INCOME MUTUAL FUNDS:

           71,191     PIMCO Total Return Fund                       763,960         750,353

               53     Federated International Income Fund               569             601

              173     Van Kampen Worldwide High Income Fund           1,838           1,687

            7,368     Oppenheimer U.S. Government Fund               71,019          71,321

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

                           Total fixed income mutual funds          837,386         823,962
                                                                -----------      ----------

                   BALANCED MUTUAL FUND:

           34,842     Merrill Lynch Capital Fund                  1,199,031       1,197,186
                                                                -----------      ----------
                   EQUITY COLLECTIVE TRUST:

           43,272     Merrill Lynch Equity Index Trust            2,854,442       3,631,468
                                                                -----------      ----------
                   FOREIGN & GLOBAL MUTUAL FUNDS:

           54,294     Managers International Equity Fund          2,521,069       2,652,256

              992     Oppenheimer Global Fund                        44,148          42,263
                                                                -----------      ----------

                          Total foreign & global mutual funds     2,565,217       2,694,519

                   GROWTH STOCK MUTUAL FUNDS:

           18,662     Davis New York Venture Fund                   446,712         466,720

          115,330     Merrill Lynch Growth Fund                   3,098,356       2,474,980

              644     Alliance Quasar Fund                           16,921          16,097

                           Total growth stock mutual funds        3,561,989       2,957,797

                   OTHER SPECIALIZED MUTUAL FUNDS:

            1,000     Davis Convertible Securities Fund              24,023          23,765

               83     Van Kampen Real Estate Securities Fund          1,011             965

               35     Merrill Lynch Pacific Fund                        584             617

              569     Munder Framlington Healthcare Fund              6,827           6,624

              146     Oppenheimer Gold and Special Minerals Fund      1,319           1,350

              101     State Street Research Global Resources Fund     1,395           1,004

              949     Pioneer Europe Fund                            31,922          29,786

            2,979     Seligman Communications and Information Fund   76,277          91,544
                                                                   --------        --------
                           Total other specialized mutual funds     143,358         155,655
                                                                   --------        --------

          273,366  BLACK HILLS CORPORATION COMMON STOCK*        $ 6,454,907     $ 7,210,038

                   SELF-DIRECTED ACCOUNTS                            92,234          92,234

                   PARTICIPANT LOANS                                820,244         820,244
                                                                -----------     -----------
                        Total investments                       $21,258,308     $22,312,603
                                                                ===========     ===========
</TABLE>

*Denotes party in interest.

<PAGE>



                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

         (Employer Identification Number: 46-0111677) (Plan Number: 003)

                  Item 27d--Schedule of Reportable Transactions

                      For the Year Ended December 31, 1998

<TABLE>
<CAPTION>
                                                   Number of     Number of     Total Cost of
                                                   Purchases       Sales         Purchases
       Description
<S>                                                 <C>            <C>          <C>
American Funds Group:

   AMCAP Fund                                          -              1         $        -

   Investment Company of America Fund                  -              1                  -

   New Perspective Fund                                -              1                  -

   American Balanced Fund                              -              1                  -



American Express Income Fund                           -              2                  -



Black Hills Corporation common stock                 110            150            660,974



Merrill Lynch Equity Index Trust                     146            133          3,523,863



Merrill Lynch Retirement Preservation Trust          313            140          3,500,805



Managers International Equity Fund                   166            143          3,095,735



Merrill Lynch Capital Fund                            67             64          1,447,927



Merrill Lynch Growth Fund                            170            162          3,863,402



PIMCO Total Return Fund                              158             46            914,516

</TABLE>

<TABLE>
<CAPTION>
                                                                  Total          Net Gain
                                              Total Sale      Cost of Sales     (Loss) on
      Description                              Proceeds                           Sales

- -------------------------------------------------------------------------------------------
<S>                                            <C>              <C>              <C>
American Funds Group:

   AMCAP Fund                                  $3,231,519       $3,233,585       $(2,066)

   Investment Company of America Fund           2,973,976        2,958,270        15,706

   New Perspective Fund                         2,460,508        2,435,361        25,147

   American Balanced Fund                       1,247,665        1,242,120         5,545


American Express Income Fund                    2,583,932        2,575,405         8,527

Black Hills Corporation common stock              409,523          405,309         4,214

Merrill Lynch Equity Index Trust                  751,912          669,420        82,492

Merrill Lynch Retirement Preservation Trust       781,325          781,325             -

Managers International Equity Fund                644,219          574,666        69,553

Merrill Lynch Capital Fund                        261,416          248,895        12,521

Merrill Lynch Growth Fund                         730,688          765,046       (34,358)

PIMCO Total Return Fund                           152,873          150,691         2,182
</TABLE>


<PAGE>


                 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN

         (Employer Identification Number: 46-0111677) (Plan Number: 003)

                  Item 27f--Schedule of Nonexempt Transactions

                     For the Period Ended December 31, 1998

<TABLE>
<CAPTION>
                         Relationship to        Description of Transactions, Including
                        Plan, Employer or          Maturity Date, Rate of Interest,                      Interest
     Identity of             Other             Collateral, and Par or Maturity Value         Amount      Incurred
   Party Involved       Party-in-Interest                                                    Loaned      on Loan
   --------------       -----------------      ----------------------------------------      ------      --------
   <S>                       <C>                 <C>                                         <C>         <C>
   Black Hills               Sponsor             Lending of moneys from the Plan to the      $6,419       $1,496
   Corporation                                   employer (contributions not timely
                                                 remitted to the Plan), as follows:
                                                 Deemed loan dated March 15, 1998,
                                                 maturity September 30, 1999, deemed
                                                 interest on the loan, 14.6%
</TABLE>

<PAGE>


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation of our
report  dated  August 6, 1999  included  in this Form 11-K,  into the  Company's
previously filed Registration Statement (Form S-8 No. 333-61969).


                                                   ARTHUR ANDERSEN LLP

Minneapolis, Minnesota
November 12, 1999



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