| Plan Name | BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN |
| Plan identification number | 006 |
| 401k Plan Type | Defined Benefit Pension |
| Plan Features/Benefits |
|
| Company Name: | BLACK HILLS CORPORATION |
| Employer identification number (EIN): | 460458824 |
| NAIC Classification: | 221500 |
Additional information about BLACK HILLS CORPORATION
| Jurisdiction of Incorporation: | California Department of State |
| Incorporation Date: | 1980-08-06 |
| Company Identification Number: | C0994582 |
| Legal Registered Office Address: |
1570 Brookhollow Dr Rm 120 Santa Ana United States of America (USA) 92702 |
More information about BLACK HILLS CORPORATION
| Plan id# | Filing Submission Date | Name of Administrator | Date Administrator Signed | Name of Company Sponsor | Date Sponsor Signed |
|---|---|---|---|---|---|
| 006 | 2023-01-01 | KIMBERLY F. NOONEY | 2024-09-27 | ||
| 006 | 2022-01-01 | KIMBERLY F. NOONEY | 2023-09-29 | ||
| 006 | 2021-01-01 | RICHARD W. KINZLEY | 2022-09-30 | ||
| 006 | 2020-01-01 | RICHARD W. KINZLEY | 2021-09-23 | ||
| 006 | 2019-01-01 | ||||
| 006 | 2018-01-01 | ||||
| 006 | 2017-01-01 | RICHARD W. KINZLEY | |||
| 006 | 2016-01-01 | RICHARD W. KINZLEY | |||
| 006 | 2015-01-01 | RICHARD W. KINZLEY | |||
| 006 | 2014-01-01 | RICH KINZLEY | |||
| 006 | 2013-01-01 | ANTHONY CLEBERG | ANTHONY CLEBERG | 2014-10-13 | |
| 006 | 2012-01-01 | MARCIA GOEHRING | |||
| 006 | 2011-01-01 | MARCIA GOEHRING | MARCIA GOEHRING | 2012-10-15 | |
| 006 | 2010-01-01 | MARCIA GOEHRING | |||
| 006 | 2009-01-01 | MARCIA GOEHRING | |||
| 006 | 2009-01-01 | MARCIA GOEHRING |
| Measure | Date | Value |
|---|---|---|
| 2023 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2023 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2023-12-31 | $-1,470,075 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $757,127 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $-712,948 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $113,714 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $132,645 |
| Total income from all sources (including contributions) | 2023-12-31 | $31,994,286 |
| Total loss/gain on sale of assets | 2023-12-31 | $-208,221 |
| Total of all expenses incurred | 2023-12-31 | $44,289,942 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $41,693,325 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $2,300,000 |
| Value of total assets at end of year | 2023-12-31 | $310,761,794 |
| Value of total assets at beginning of year | 2023-12-31 | $323,076,381 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $2,596,617 |
| Total interest from all sources | 2023-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Was this plan covered by a fidelity bond | 2023-12-31 | Yes |
| Value of fidelity bond cover | 2023-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2023-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2023-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2023-12-31 | $8,104,271 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-12-31 | $8,083,814 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-12-31 | $15,265,871 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $46,402 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $73,879 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $113,714 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $132,645 |
| Administrative expenses (other) incurred | 2023-12-31 | $1,529,660 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Value of net income/loss | 2023-12-31 | $-12,295,656 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $310,648,080 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $322,943,736 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2023-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2023-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2023-12-31 | No |
| Investment advisory and management fees | 2023-12-31 | $412,067 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $300,311,121 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $314,918,688 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $30,615,455 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2023-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2023-12-31 | No |
| Contributions received in cash from employer | 2023-12-31 | $2,300,000 |
| Employer contributions (assets) at end of year | 2023-12-31 | $2,300,000 |
| Employer contributions (assets) at beginning of year | 2023-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-12-31 | $26,427,454 |
| Contract administrator fees | 2023-12-31 | $1,020 |
| Did the plan have assets held for investment | 2023-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2023-12-31 | No |
| Aggregate proceeds on sale of assets | 2023-12-31 | $3,000,049 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $3,208,270 |
| Opinion of an independent qualified public accountant for this plan | 2023-12-31 | Unqualified |
| Accountancy firm name | 2023-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2023-12-31 | 133891517 |
| Unrealized appreciation/depreciation of real estate assets | 2023-01-01 | $-1,470,075 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-01-01 | $757,127 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $-712,948 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $113,714 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $132,645 |
| Total income from all sources (including contributions) | 2023-01-01 | $31,994,286 |
| Total loss/gain on sale of assets | 2023-01-01 | $-208,221 |
| Total of all expenses incurred | 2023-01-01 | $44,289,942 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-01-01 | $41,693,325 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-01-01 | $2,300,000 |
| Value of total assets at end of year | 2023-01-01 | $310,761,794 |
| Value of total assets at beginning of year | 2023-01-01 | $323,076,381 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $2,596,617 |
| Total interest from all sources | 2023-01-01 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-01-01 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-01-01 | No |
| Was this plan covered by a fidelity bond | 2023-01-01 | Yes |
| Value of fidelity bond cover | 2023-01-01 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2023-01-01 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2023-01-01 | No |
| Assets. Other investments not covered elsewhere at end of year | 2023-01-01 | $8,104,271 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-01-01 | $8,083,814 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-01-01 | $15,265,871 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-01-01 | $46,402 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $73,879 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-01-01 | $113,714 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-01-01 | $132,645 |
| Administrative expenses (other) incurred | 2023-01-01 | $1,529,660 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-01-01 | No |
| Value of net income/loss | 2023-01-01 | $-12,295,656 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $310,648,080 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $322,943,736 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2023-01-01 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2023-01-01 | No |
| Were any leases to which the plan was party in default or uncollectible | 2023-01-01 | No |
| Investment advisory and management fees | 2023-01-01 | $412,067 |
| Value of interest in common/collective trusts at end of year | 2023-01-01 | $300,311,121 |
| Value of interest in common/collective trusts at beginning of year | 2023-01-01 | $314,918,688 |
| Net investment gain or loss from common/collective trusts | 2023-01-01 | $30,615,455 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-01-01 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2023-01-01 | No |
| Has the plan failed to provide any benefit when due under the plan | 2023-01-01 | No |
| Contributions received in cash from employer | 2023-01-01 | $2,300,000 |
| Employer contributions (assets) at end of year | 2023-01-01 | $2,300,000 |
| Employer contributions (assets) at beginning of year | 2023-01-01 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-01-01 | $26,427,454 |
| Contract administrator fees | 2023-01-01 | $1,020 |
| Did the plan have assets held for investment | 2023-01-01 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-01-01 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2023-01-01 | No |
| Aggregate proceeds on sale of assets | 2023-01-01 | $3,000,049 |
| Aggregate carrying amount (costs) on sale of assets | 2023-01-01 | $3,208,270 |
| Opinion of an independent qualified public accountant for this plan | 2023-01-01 | 1 |
| Accountancy firm name | 2023-01-01 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2023-01-01 | 133891517 |
| 2022 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2022 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $132,645 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $198,925 |
| Total income from all sources (including contributions) | 2022-12-31 | $-96,663,544 |
| Total loss/gain on sale of assets | 2022-12-31 | $0 |
| Total of all expenses incurred | 2022-12-31 | $38,450,897 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $36,579,099 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $0 |
| Value of total assets at end of year | 2022-12-31 | $323,076,381 |
| Value of total assets at beginning of year | 2022-12-31 | $458,257,102 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $1,871,798 |
| Total interest from all sources | 2022-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Administrative expenses professional fees incurred | 2022-12-31 | $576,953 |
| Was this plan covered by a fidelity bond | 2022-12-31 | Yes |
| Value of fidelity bond cover | 2022-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2022-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2022-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2022-12-31 | $8,083,814 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2022-12-31 | $8,830,455 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $73,879 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $40,389 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $132,645 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $198,925 |
| Administrative expenses (other) incurred | 2022-12-31 | $783,092 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Value of net income/loss | 2022-12-31 | $-135,114,441 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $322,943,736 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $458,058,177 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2022-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2022-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2022-12-31 | No |
| Investment advisory and management fees | 2022-12-31 | $509,713 |
| Value of interest in master investment trust accounts at end of year | 2022-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2022-12-31 | $458,216,713 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $314,918,688 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2022-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2022-12-31 | No |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $27,748,644 |
| Contract administrator fees | 2022-12-31 | $2,040 |
| Did the plan have assets held for investment | 2022-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2022-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2022-12-31 | Unqualified |
| Accountancy firm name | 2022-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2022-12-31 | 133891517 |
| Total unrealized appreciation/depreciation of assets | 2022-01-01 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $132,645 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $198,925 |
| Total income from all sources (including contributions) | 2022-01-01 | $-96,663,544 |
| Total loss/gain on sale of assets | 2022-01-01 | $0 |
| Total of all expenses incurred | 2022-01-01 | $38,450,897 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-01-01 | $36,579,099 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-01-01 | $0 |
| Value of total assets at end of year | 2022-01-01 | $323,076,381 |
| Value of total assets at beginning of year | 2022-01-01 | $458,257,102 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $1,871,798 |
| Total interest from all sources | 2022-01-01 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-01-01 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-01-01 | No |
| Administrative expenses professional fees incurred | 2022-01-01 | $576,953 |
| Was this plan covered by a fidelity bond | 2022-01-01 | Yes |
| Value of fidelity bond cover | 2022-01-01 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2022-01-01 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2022-01-01 | No |
| Assets. Other investments not covered elsewhere at end of year | 2022-01-01 | $8,083,814 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-01-01 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2022-01-01 | $8,830,455 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-01-01 | $73,879 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-01-01 | $40,389 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-01-01 | $132,645 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-01-01 | $198,925 |
| Administrative expenses (other) incurred | 2022-01-01 | $783,092 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-01-01 | No |
| Value of net income/loss | 2022-01-01 | $-135,114,441 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $322,943,736 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $458,058,177 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2022-01-01 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2022-01-01 | No |
| Were any leases to which the plan was party in default or uncollectible | 2022-01-01 | No |
| Investment advisory and management fees | 2022-01-01 | $509,713 |
| Value of interest in master investment trust accounts at end of year | 2022-01-01 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2022-01-01 | $458,216,713 |
| Value of interest in common/collective trusts at end of year | 2022-01-01 | $314,918,688 |
| Value of interest in common/collective trusts at beginning of year | 2022-01-01 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-01-01 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2022-01-01 | No |
| Has the plan failed to provide any benefit when due under the plan | 2022-01-01 | No |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-01-01 | $27,748,644 |
| Contract administrator fees | 2022-01-01 | $2,040 |
| Did the plan have assets held for investment | 2022-01-01 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-01-01 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2022-01-01 | No |
| Opinion of an independent qualified public accountant for this plan | 2022-01-01 | 1 |
| Accountancy firm name | 2022-01-01 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2022-01-01 | 133891517 |
| 2021 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2021 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $198,925 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $193,276 |
| Total income from all sources (including contributions) | 2021-12-31 | $19,230,927 |
| Total loss/gain on sale of assets | 2021-12-31 | $0 |
| Total of all expenses incurred | 2021-12-31 | $35,482,577 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $35,482,577 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $0 |
| Value of total assets at end of year | 2021-12-31 | $458,257,102 |
| Value of total assets at beginning of year | 2021-12-31 | $474,503,103 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $0 |
| Total interest from all sources | 2021-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Was this plan covered by a fidelity bond | 2021-12-31 | Yes |
| Value of fidelity bond cover | 2021-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2021-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2021-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2021-12-31 | No |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2021-12-31 | $6,003,970 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $40,389 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $198,925 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $193,276 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Value of net income/loss | 2021-12-31 | $-16,251,650 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $458,058,177 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $474,309,827 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2021-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2021-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2021-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2021-12-31 | $458,216,713 |
| Value of interest in master investment trust accounts at beginning of year | 2021-12-31 | $474,503,103 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2021-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2021-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2021-12-31 | No |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $29,478,607 |
| Did the plan have assets held for investment | 2021-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2021-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2021-12-31 | Unqualified |
| Accountancy firm name | 2021-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2021-12-31 | 133891517 |
| 2020 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2020 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $193,276 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $326,991 |
| Total income from all sources (including contributions) | 2020-12-31 | $64,889,576 |
| Total loss/gain on sale of assets | 2020-12-31 | $0 |
| Total of all expenses incurred | 2020-12-31 | $37,236,953 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $37,236,953 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $0 |
| Value of total assets at end of year | 2020-12-31 | $474,503,103 |
| Value of total assets at beginning of year | 2020-12-31 | $446,984,195 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $0 |
| Total interest from all sources | 2020-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Was this plan covered by a fidelity bond | 2020-12-31 | Yes |
| Value of fidelity bond cover | 2020-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2020-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2020-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2020-12-31 | $14,289,382 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $193,276 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $326,991 |
| Other income not declared elsewhere | 2020-12-31 | $245,491 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Value of net income/loss | 2020-12-31 | $27,652,623 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $474,309,827 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $446,657,204 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2020-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2020-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2020-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2020-12-31 | $474,503,103 |
| Value of interest in master investment trust accounts at beginning of year | 2020-12-31 | $434,284,195 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2020-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2020-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2020-12-31 | No |
| Employer contributions (assets) at end of year | 2020-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $12,700,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $22,947,571 |
| Did the plan have assets held for investment | 2020-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2020-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2020-12-31 | Disclaimer |
| Accountancy firm name | 2020-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2020-12-31 | 133891517 |
| 2019 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2019 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $326,991 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $509,924 |
| Total income from all sources (including contributions) | 2019-12-31 | $82,155,864 |
| Total loss/gain on sale of assets | 2019-12-31 | $0 |
| Total of all expenses incurred | 2019-12-31 | $38,848,388 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $38,848,388 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $12,700,000 |
| Value of total assets at end of year | 2019-12-31 | $446,984,195 |
| Value of total assets at beginning of year | 2019-12-31 | $403,859,652 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $0 |
| Total interest from all sources | 2019-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Was this plan covered by a fidelity bond | 2019-12-31 | Yes |
| Value of fidelity bond cover | 2019-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2019-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2019-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2019-12-31 | $17,520,000 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $326,991 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $213,735 |
| Liabilities. Value of operating payables at end of year | 2019-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2019-12-31 | $296,189 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Value of net income/loss | 2019-12-31 | $43,307,476 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $446,657,204 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $403,349,728 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2019-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2019-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2019-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2019-12-31 | $434,284,195 |
| Value of interest in master investment trust accounts at beginning of year | 2019-12-31 | $391,159,652 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2019-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2019-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2019-12-31 | No |
| Contributions received in cash from employer | 2019-12-31 | $12,700,000 |
| Employer contributions (assets) at end of year | 2019-12-31 | $12,700,000 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $12,700,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $21,328,388 |
| Did the plan have assets held for investment | 2019-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2019-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2019-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2019-12-31 | Disclaimer |
| Accountancy firm name | 2019-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2019-12-31 | 133891517 |
| 2018 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2018 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $509,924 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $152,815 |
| Total income from all sources (including contributions) | 2018-12-31 | $-5,266,117 |
| Total loss/gain on sale of assets | 2018-12-31 | $0 |
| Total of all expenses incurred | 2018-12-31 | $20,309,487 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $20,309,487 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $12,700,000 |
| Value of total assets at end of year | 2018-12-31 | $403,859,652 |
| Value of total assets at beginning of year | 2018-12-31 | $429,078,147 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $0 |
| Total interest from all sources | 2018-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2018-12-31 | No |
| Was this plan covered by a fidelity bond | 2018-12-31 | Yes |
| Value of fidelity bond cover | 2018-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2018-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2018-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $213,735 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $152,815 |
| Liabilities. Value of operating payables at end of year | 2018-12-31 | $296,189 |
| Liabilities. Value of operating payables at beginning of year | 2018-12-31 | $0 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Value of net income/loss | 2018-12-31 | $-25,575,604 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $403,349,728 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $428,925,332 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2018-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2018-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2018-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2018-12-31 | $391,159,652 |
| Value of interest in master investment trust accounts at beginning of year | 2018-12-31 | $416,378,147 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2018-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2018-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2018-12-31 | No |
| Contributions received in cash from employer | 2018-12-31 | $12,700,000 |
| Employer contributions (assets) at end of year | 2018-12-31 | $12,700,000 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $12,700,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $20,309,487 |
| Did the plan have assets held for investment | 2018-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2018-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2018-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2018-12-31 | Disclaimer |
| Accountancy firm name | 2018-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2018-12-31 | 133891517 |
| 2017 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2017 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $152,815 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $0 |
| Total income from all sources (including contributions) | 2017-12-31 | $61,264,212 |
| Total loss/gain on sale of assets | 2017-12-31 | $0 |
| Total of all expenses incurred | 2017-12-31 | $24,668,507 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $24,668,507 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $12,700,000 |
| Value of total assets at end of year | 2017-12-31 | $429,078,147 |
| Value of total assets at beginning of year | 2017-12-31 | $392,329,627 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $0 |
| Total interest from all sources | 2017-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2017-12-31 | No |
| Was this plan covered by a fidelity bond | 2017-12-31 | Yes |
| Value of fidelity bond cover | 2017-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2017-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2017-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $152,815 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $0 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Value of net income/loss | 2017-12-31 | $36,595,705 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $428,925,332 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $392,329,627 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2017-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2017-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2017-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2017-12-31 | $416,378,147 |
| Value of interest in master investment trust accounts at beginning of year | 2017-12-31 | $364,629,627 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2017-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2017-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2017-12-31 | No |
| Contributions received in cash from employer | 2017-12-31 | $12,700,000 |
| Employer contributions (assets) at end of year | 2017-12-31 | $12,700,000 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $27,700,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $24,668,507 |
| Did the plan have assets held for investment | 2017-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2017-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2017-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2017-12-31 | Disclaimer |
| Accountancy firm name | 2017-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2017-12-31 | 133891517 |
| 2016 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2016 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $0 |
| Total transfer of assets to this plan | 2016-12-31 | $176,367,853 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $0 |
| Total income from all sources (including contributions) | 2016-12-31 | $42,603,498 |
| Total loss/gain on sale of assets | 2016-12-31 | $0 |
| Total of all expenses incurred | 2016-12-31 | $10,118,398 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $10,118,398 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $27,700,000 |
| Value of total assets at end of year | 2016-12-31 | $392,329,627 |
| Value of total assets at beginning of year | 2016-12-31 | $183,476,674 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $0 |
| Total interest from all sources | 2016-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2016-12-31 | No |
| Was this plan covered by a fidelity bond | 2016-12-31 | Yes |
| Value of fidelity bond cover | 2016-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2016-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2016-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Value of net income/loss | 2016-12-31 | $32,485,100 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $392,329,627 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $183,476,674 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2016-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2016-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2016-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2016-12-31 | $364,629,627 |
| Value of interest in master investment trust accounts at beginning of year | 2016-12-31 | $174,976,674 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2016-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2016-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2016-12-31 | No |
| Contributions received in cash from employer | 2016-12-31 | $27,700,000 |
| Employer contributions (assets) at end of year | 2016-12-31 | $27,700,000 |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $8,500,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $10,118,398 |
| Did the plan have assets held for investment | 2016-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2016-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2016-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2016-12-31 | Disclaimer |
| Accountancy firm name | 2016-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2016-12-31 | 133891517 |
| 2015 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2015 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $0 |
| Total income from all sources (including contributions) | 2015-12-31 | $4,195,764 |
| Total loss/gain on sale of assets | 2015-12-31 | $0 |
| Total of all expenses incurred | 2015-12-31 | $9,383,833 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $9,383,833 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $8,500,000 |
| Value of total assets at end of year | 2015-12-31 | $183,476,674 |
| Value of total assets at beginning of year | 2015-12-31 | $188,664,743 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $0 |
| Total interest from all sources | 2015-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2015-12-31 | No |
| Was this plan covered by a fidelity bond | 2015-12-31 | Yes |
| Value of fidelity bond cover | 2015-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2015-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2015-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Value of net income/loss | 2015-12-31 | $-5,188,069 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $183,476,674 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $188,664,743 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2015-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2015-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2015-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2015-12-31 | $174,976,674 |
| Value of interest in master investment trust accounts at beginning of year | 2015-12-31 | $178,464,743 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2015-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2015-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2015-12-31 | No |
| Contributions received in cash from employer | 2015-12-31 | $8,500,000 |
| Employer contributions (assets) at end of year | 2015-12-31 | $8,500,000 |
| Employer contributions (assets) at beginning of year | 2015-12-31 | $10,200,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2015-12-31 | $9,383,833 |
| Did the plan have assets held for investment | 2015-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2015-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2015-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2015-12-31 | Disclaimer |
| Accountancy firm name | 2015-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2015-12-31 | 133891517 |
| 2014 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2014 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $212,702 |
| Total income from all sources (including contributions) | 2014-12-31 | $27,545,459 |
| Total loss/gain on sale of assets | 2014-12-31 | $0 |
| Total of all expenses incurred | 2014-12-31 | $13,011,088 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $13,011,088 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $10,200,000 |
| Value of total assets at end of year | 2014-12-31 | $188,664,743 |
| Value of total assets at beginning of year | 2014-12-31 | $174,343,074 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $0 |
| Total interest from all sources | 2014-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2014-12-31 | No |
| Was this plan covered by a fidelity bond | 2014-12-31 | Yes |
| Value of fidelity bond cover | 2014-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2014-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2014-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Value of net income/loss | 2014-12-31 | $14,534,371 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $188,664,743 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $174,130,372 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2014-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2014-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2014-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2014-12-31 | $178,464,743 |
| Value of interest in master investment trust accounts at beginning of year | 2014-12-31 | $167,543,074 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2014-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2014-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2014-12-31 | No |
| Contributions received in cash from employer | 2014-12-31 | $10,200,000 |
| Employer contributions (assets) at end of year | 2014-12-31 | $10,200,000 |
| Employer contributions (assets) at beginning of year | 2014-12-31 | $6,800,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2014-12-31 | $13,011,088 |
| Liabilities. Value of benefit claims payable at end of year | 2014-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2014-12-31 | $212,702 |
| Did the plan have assets held for investment | 2014-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2014-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2014-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2014-12-31 | Disclaimer |
| Accountancy firm name | 2014-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2014-12-31 | 133891517 |
| 2013 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2013 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $212,702 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $0 |
| Total income from all sources (including contributions) | 2013-12-31 | $21,699,611 |
| Total loss/gain on sale of assets | 2013-12-31 | $0 |
| Total of all expenses incurred | 2013-12-31 | $17,623,141 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $17,623,141 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $6,800,000 |
| Value of total assets at end of year | 2013-12-31 | $174,343,074 |
| Value of total assets at beginning of year | 2013-12-31 | $170,053,902 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $0 |
| Total interest from all sources | 2013-12-31 | $2,854 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2013-12-31 | No |
| Was this plan covered by a fidelity bond | 2013-12-31 | Yes |
| Value of fidelity bond cover | 2013-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2013-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2013-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2013-12-31 | No |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Value of net income/loss | 2013-12-31 | $4,076,470 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $174,130,372 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $170,053,902 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2013-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2013-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2013-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2013-12-31 | $167,543,074 |
| Value of interest in master investment trust accounts at beginning of year | 2013-12-31 | $162,053,902 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $2,854 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2013-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2013-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2013-12-31 | No |
| Contributions received in cash from employer | 2013-12-31 | $6,800,000 |
| Employer contributions (assets) at end of year | 2013-12-31 | $6,800,000 |
| Employer contributions (assets) at beginning of year | 2013-12-31 | $8,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2013-12-31 | $17,623,141 |
| Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3 | 2013-12-31 | No |
| Liabilities. Value of benefit claims payable at end of year | 2013-12-31 | $212,702 |
| Liabilities. Value of benefit claims payable at beginning of year | 2013-12-31 | $0 |
| Did the plan have assets held for investment | 2013-12-31 | No |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2013-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2013-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2013-12-31 | Disclaimer |
| Accountancy firm name | 2013-12-31 | DELOITTE AND TOUCHE LLP |
| Accountancy firm EIN | 2013-12-31 | 133891517 |
| 2012 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2012 401k financial data | ||
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $0 |
| Total income from all sources (including contributions) | 2012-12-31 | $27,457,435 |
| Total loss/gain on sale of assets | 2012-12-31 | $0 |
| Total of all expenses incurred | 2012-12-31 | $7,446,903 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $7,446,903 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $8,000,000 |
| Value of total assets at end of year | 2012-12-31 | $170,053,902 |
| Value of total assets at beginning of year | 2012-12-31 | $150,043,371 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $0 |
| Total interest from all sources | 2012-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2012-12-31 | No |
| Was this plan covered by a fidelity bond | 2012-12-31 | Yes |
| Value of fidelity bond cover | 2012-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2012-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2012-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2012-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $650,007 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Value of net income/loss | 2012-12-31 | $20,010,532 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $170,053,902 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $150,043,371 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2012-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2012-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2012-12-31 | No |
| Value of interest in master investment trust accounts at end of year | 2012-12-31 | $162,053,902 |
| Value of interest in master investment trust accounts at beginning of year | 2012-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $127,072,351 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2012-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2012-12-31 | $10,321,013 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2012-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2012-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2012-12-31 | No |
| Contributions received in cash from employer | 2012-12-31 | $8,000,000 |
| Employer contributions (assets) at end of year | 2012-12-31 | $8,000,000 |
| Employer contributions (assets) at beginning of year | 2012-12-31 | $12,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2012-12-31 | $7,446,903 |
| Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3 | 2012-12-31 | No |
| Did the plan have assets held for investment | 2012-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2012-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2012-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2012-12-31 | Unqualified |
| Accountancy firm name | 2012-12-31 | DELOITTE & TOUCHE LLP |
| Accountancy firm EIN | 2012-12-31 | 133891517 |
| 2011 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2011 401k financial data | ||
| Total income from all sources (including contributions) | 2011-12-31 | $14,374,438 |
| Total of all expenses incurred | 2011-12-31 | $7,765,865 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $6,990,186 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $12,160,422 |
| Value of total assets at end of year | 2011-12-31 | $150,043,371 |
| Value of total assets at beginning of year | 2011-12-31 | $143,434,798 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $775,679 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2011-12-31 | No |
| Was this plan covered by a fidelity bond | 2011-12-31 | Yes |
| Value of fidelity bond cover | 2011-12-31 | $50,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Income. Received or receivable in cash from other sources (including rollovers) | 2011-12-31 | $160,422 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $650,007 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $600,084 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Value of net income/loss | 2011-12-31 | $6,608,573 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $150,043,371 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $143,434,798 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2011-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2011-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2011-12-31 | No |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2011-12-31 | $4,242,344 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $127,072,351 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $116,844,053 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2011-12-31 | $10,321,013 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2011-12-31 | $11,248,317 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2011-12-31 | $150,560 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $2,889,213 |
| Net gain/loss from 103.12 investment entities | 2011-12-31 | $-825,757 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2011-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2011-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2011-12-31 | No |
| Contributions received in cash from employer | 2011-12-31 | $12,000,000 |
| Employer contributions (assets) at end of year | 2011-12-31 | $12,000,000 |
| Employer contributions (assets) at beginning of year | 2011-12-31 | $10,500,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2011-12-31 | $6,990,186 |
| Contract administrator fees | 2011-12-31 | $775,679 |
| Did the plan have assets held for investment | 2011-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2011-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2011-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2011-12-31 | Unqualified |
| Accountancy firm name | 2011-12-31 | DELOITTE & TOUCHE, LLP |
| Accountancy firm EIN | 2011-12-31 | 133891517 |
| 2010 : BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2010 401k financial data | ||
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $8,864,095 |
| Total income from all sources (including contributions) | 2010-12-31 | $26,726,843 |
| Total of all expenses incurred | 2010-12-31 | $7,177,505 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $6,532,962 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $10,504,349 |
| Value of total assets at end of year | 2010-12-31 | $143,434,798 |
| Value of total assets at beginning of year | 2010-12-31 | $132,749,555 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $644,543 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2010-12-31 | No |
| Was this plan covered by a fidelity bond | 2010-12-31 | Yes |
| Value of fidelity bond cover | 2010-12-31 | $50,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2010-12-31 | No |
| Income. Received or receivable in cash from other sources (including rollovers) | 2010-12-31 | $4,349 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2010-12-31 | $136 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $600,084 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $252,234 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $8,742,600 |
| Liabilities. Value of operating payables at beginning of year | 2010-12-31 | $121,495 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Value of net income/loss | 2010-12-31 | $19,549,338 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $143,434,798 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $123,885,460 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2010-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2010-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2010-12-31 | No |
| Investment advisory and management fees | 2010-12-31 | $644,543 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2010-12-31 | $4,242,344 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2010-12-31 | $3,733,779 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $116,844,054 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $108,152,834 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2010-12-31 | $11,248,316 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2010-12-31 | $10,610,708 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2010-12-31 | $508,565 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $14,983,369 |
| Net gain/loss from 103.12 investment entities | 2010-12-31 | $730,560 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2010-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2010-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2010-12-31 | No |
| Contributions received in cash from employer | 2010-12-31 | $10,500,000 |
| Employer contributions (assets) at end of year | 2010-12-31 | $10,500,000 |
| Employer contributions (assets) at beginning of year | 2010-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2010-12-31 | $6,532,826 |
| Did the plan have assets held for investment | 2010-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2010-12-31 | No |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2010-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2010-12-31 | Unqualified |
| Accountancy firm name | 2010-12-31 | DELOITTE & TOUCHE, LLP |
| Accountancy firm EIN | 2010-12-31 | 133891517 |
| 2023: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2023 form 5500 responses | ||
|---|---|---|
| 2023-01-01 | Type of plan entity | Single employer plan |
| 2023-01-01 | Submission has been amended | No |
| 2023-01-01 | This submission is the final filing | No |
| 2023-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2023-01-01 | Plan is a collectively bargained plan | Yes |
| 2023-01-01 | Plan funding arrangement – Trust | Yes |
| 2023-01-01 | Plan benefit arrangement - Trust | Yes |
| 2022: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2022 form 5500 responses | ||
| 2022-01-01 | Type of plan entity | Single employer plan |
| 2022-01-01 | Submission has been amended | No |
| 2022-01-01 | This submission is the final filing | No |
| 2022-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2022-01-01 | Plan is a collectively bargained plan | Yes |
| 2022-01-01 | Plan funding arrangement – Trust | Yes |
| 2022-01-01 | Plan benefit arrangement - Trust | Yes |
| 2021: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2021 form 5500 responses | ||
| 2021-01-01 | Type of plan entity | Single employer plan |
| 2021-01-01 | Submission has been amended | No |
| 2021-01-01 | This submission is the final filing | No |
| 2021-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2021-01-01 | Plan is a collectively bargained plan | Yes |
| 2021-01-01 | Plan funding arrangement – Trust | Yes |
| 2021-01-01 | Plan benefit arrangement - Trust | Yes |
| 2020: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2020 form 5500 responses | ||
| 2020-01-01 | Type of plan entity | Single employer plan |
| 2020-01-01 | Submission has been amended | No |
| 2020-01-01 | This submission is the final filing | No |
| 2020-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2020-01-01 | Plan is a collectively bargained plan | Yes |
| 2020-01-01 | Plan funding arrangement – Trust | Yes |
| 2020-01-01 | Plan benefit arrangement - Trust | Yes |
| 2019: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2019 form 5500 responses | ||
| 2019-01-01 | Type of plan entity | Single employer plan |
| 2019-01-01 | Submission has been amended | No |
| 2019-01-01 | This submission is the final filing | No |
| 2019-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2019-01-01 | Plan is a collectively bargained plan | Yes |
| 2019-01-01 | Plan funding arrangement – Trust | Yes |
| 2019-01-01 | Plan benefit arrangement - Trust | Yes |
| 2018: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2018 form 5500 responses | ||
| 2018-01-01 | Type of plan entity | Single employer plan |
| 2018-01-01 | Submission has been amended | No |
| 2018-01-01 | This submission is the final filing | No |
| 2018-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2018-01-01 | Plan is a collectively bargained plan | Yes |
| 2018-01-01 | Plan funding arrangement – Trust | Yes |
| 2018-01-01 | Plan benefit arrangement - Trust | Yes |
| 2017: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2017 form 5500 responses | ||
| 2017-01-01 | Type of plan entity | Single employer plan |
| 2017-01-01 | Submission has been amended | No |
| 2017-01-01 | This submission is the final filing | No |
| 2017-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2017-01-01 | Plan is a collectively bargained plan | Yes |
| 2017-01-01 | Plan funding arrangement – Trust | Yes |
| 2017-01-01 | Plan benefit arrangement - Trust | Yes |
| 2016: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2016 form 5500 responses | ||
| 2016-01-01 | Type of plan entity | Single employer plan |
| 2016-01-01 | Submission has been amended | No |
| 2016-01-01 | This submission is the final filing | No |
| 2016-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2016-01-01 | Plan is a collectively bargained plan | Yes |
| 2016-01-01 | Plan funding arrangement – Trust | Yes |
| 2016-01-01 | Plan benefit arrangement - Trust | Yes |
| 2015: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2015 form 5500 responses | ||
| 2015-01-01 | Type of plan entity | Single employer plan |
| 2015-01-01 | Submission has been amended | No |
| 2015-01-01 | This submission is the final filing | No |
| 2015-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2015-01-01 | Plan is a collectively bargained plan | Yes |
| 2015-01-01 | Plan funding arrangement – Trust | Yes |
| 2015-01-01 | Plan benefit arrangement - Trust | Yes |
| 2014: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2014 form 5500 responses | ||
| 2014-01-01 | Type of plan entity | Single employer plan |
| 2014-01-01 | Submission has been amended | No |
| 2014-01-01 | This submission is the final filing | No |
| 2014-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2014-01-01 | Plan is a collectively bargained plan | Yes |
| 2014-01-01 | Plan funding arrangement – Trust | Yes |
| 2014-01-01 | Plan benefit arrangement - Trust | Yes |
| 2013: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2013 form 5500 responses | ||
| 2013-01-01 | Type of plan entity | Single employer plan |
| 2013-01-01 | Submission has been amended | No |
| 2013-01-01 | This submission is the final filing | No |
| 2013-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2013-01-01 | Plan is a collectively bargained plan | Yes |
| 2013-01-01 | Plan funding arrangement – Trust | Yes |
| 2013-01-01 | Plan benefit arrangement - Trust | Yes |
| 2012: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2012 form 5500 responses | ||
| 2012-01-01 | Type of plan entity | Single employer plan |
| 2012-01-01 | Submission has been amended | Yes |
| 2012-01-01 | This submission is the final filing | No |
| 2012-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 2012-01-01 | Plan is a collectively bargained plan | Yes |
| 2012-01-01 | Plan funding arrangement – Trust | Yes |
| 2012-01-01 | Plan benefit arrangement - Trust | Yes |
| 2011: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2011 form 5500 responses | ||
| 2011-01-01 | Type of plan entity | Single employer plan |
| 2011-01-01 | Plan is a collectively bargained plan | Yes |
| 2011-01-01 | Plan funding arrangement – Trust | Yes |
| 2011-01-01 | Plan benefit arrangement - Trust | Yes |
| 2010: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2010 form 5500 responses | ||
| 2010-01-01 | Type of plan entity | Single employer plan |
| 2010-01-01 | Plan is a collectively bargained plan | Yes |
| 2010-01-01 | Plan funding arrangement – Trust | Yes |
| 2010-01-01 | Plan benefit arrangement - Trust | Yes |
| 2009: BLACK HILLS UTILITY HOLDINGS INC PENSION PLAN 2009 form 5500 responses | ||
| 2009-01-01 | Type of plan entity | Single employer plan |
| 2009-01-01 | Plan is a collectively bargained plan | Yes |
| 2009-01-01 | Plan funding arrangement – Trust | Yes |
| 2009-01-01 | Plan benefit arrangement - Trust | Yes |