- ------------------------------------------------------------------------------- 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 - ----------------------------------------------------------------------------- Black Hills Corporation Retirement Savings Plan Financial Statements as of December 31, 1998 and 1997 Together With Report of Independent Public Accountants 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 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 BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN Statement of Net Assets Available for Benefits As of December 31, 1998 Guaranteed Fixed Foreign & Growth Stock Investment Income Balanced Mutual Equity Global Mutual Mutual Funds Contract Trust Mutual Funds Fund Collective Trust Funds - ----------------------------------------------------------------------------------------------------------------------------------- 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 Other Black Hills Specialized Corporation Self-Directed Mutual Funds Common Stock Accounts Participant Contributions Loans Receivable Total - ---------------------------------------------------------------------------------------------------------------------------------- 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 The accompanying notes are an integral part of this statement. BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN Statement of Net Assets Available for Benefits As of December 31, 1997 American Investment Express Income Company of New American Fund AMCAP Fund America Fund Perspective Balanced Fund Fund - -------------------------------------------------------------------------------------------------------------------- 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 Black Hills Participant Corporation Contribution/Loan Common Stock Participant Payment Receivable Loans Total - --------------------------------------------------------------------------------------------- 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 The accompanying notes are an integral part of this statement. BLACK HILLS CORPORATION RETIREMENT SAVINGS PLAN Statement of Changes in Net Assets Available for Benefits For the Year Ended December 31, 1998 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 - ----------------------------------------------------------------------------------------------------------------------------------- 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 Black Hills Contributions American American Funds Corporation Self-Directed Participant Receivable Express Income Mutual Funds Total Common Stock Accounts Loans Fund - ---------------------------------------------------------------------------------------------------------------------------------- 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 The accompanying notes are an integral part of this statement. 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. 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 Number of Shares of Units Description Cost Market Value GUARANTEED INVESTMENT CONTRACT TRUST: 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 =========== =========== *Denotes party in interest. 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 Number of Number of Total Cost of Purchases Sales Purchases Description 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 Total Net Gain Total Sale Cost of Sales (Loss) on Description Proceeds Sales - ------------------------------------------------------------------------------------------- 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 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 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 -------------- ----------------- ---------------------------------------- ------ -------- 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% 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