NORTHWESTERN CORPORATION has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan NORTHWESTERN ENERGY MT PENSION PLAN
| Measure | Date | Value |
|---|
| 2023 : NORTHWESTERN ENERGY MT PENSION PLAN 2023 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $863,584 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $0 |
| Total income from all sources (including contributions) | 2023-12-31 | $34,334,557 |
| Total loss/gain on sale of assets | 2023-12-31 | $0 |
| Total of all expenses incurred | 2023-12-31 | $80,352,878 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $79,360,282 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $3,205,000 |
| Value of total assets at end of year | 2023-12-31 | $350,194,280 |
| Value of total assets at beginning of year | 2023-12-31 | $395,349,017 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $992,596 |
| 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 |
| Were there any nonexempt tranactions with any party-in-interest | 2023-12-31 | No |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-12-31 | $52,791,057 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $848,500 |
| Administrative expenses (other) incurred | 2023-12-31 | $992,596 |
| 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 | $-46,018,321 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $349,330,696 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $395,349,017 |
| 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 |
| Value of interest in master investment trust accounts at end of year | 2023-12-31 | $347,989,280 |
| Value of interest in master investment trust accounts at beginning of year | 2023-12-31 | $388,349,017 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-12-31 | No |
| 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 | $3,205,000 |
| Employer contributions (assets) at end of year | 2023-12-31 | $2,205,000 |
| Employer contributions (assets) at beginning of year | 2023-12-31 | $7,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-12-31 | $26,569,225 |
| Liabilities. Value of benefit claims payable at end of year | 2023-12-31 | $15,084 |
| Did the plan have assets held for investment | 2023-12-31 | 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 | 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 |
| Opinion of an independent qualified public accountant for this plan | 2023-12-31 | Unqualified |
| Accountancy firm name | 2023-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2023-12-31 | 450250958 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $863,584 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $0 |
| Total income from all sources (including contributions) | 2023-01-01 | $34,334,557 |
| Total loss/gain on sale of assets | 2023-01-01 | $0 |
| Total of all expenses incurred | 2023-01-01 | $80,352,878 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-01-01 | $79,360,282 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-01-01 | $3,205,000 |
| Value of total assets at end of year | 2023-01-01 | $350,194,280 |
| Value of total assets at beginning of year | 2023-01-01 | $395,349,017 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $992,596 |
| 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 |
| Were there any nonexempt tranactions with any party-in-interest | 2023-01-01 | No |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-01-01 | $52,791,057 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-01-01 | $848,500 |
| Administrative expenses (other) incurred | 2023-01-01 | $992,596 |
| 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 | $-46,018,321 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $349,330,696 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $395,349,017 |
| 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 |
| Value of interest in master investment trust accounts at end of year | 2023-01-01 | $347,989,280 |
| Value of interest in master investment trust accounts at beginning of year | 2023-01-01 | $388,349,017 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-01-01 | No |
| 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 | $3,205,000 |
| Employer contributions (assets) at end of year | 2023-01-01 | $2,205,000 |
| Employer contributions (assets) at beginning of year | 2023-01-01 | $7,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-01-01 | $26,569,225 |
| Liabilities. Value of benefit claims payable at end of year | 2023-01-01 | $15,084 |
| Did the plan have assets held for investment | 2023-01-01 | 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 | 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 |
| Opinion of an independent qualified public accountant for this plan | 2023-01-01 | 1 |
| Accountancy firm name | 2023-01-01 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2023-01-01 | 450250958 |
| 2022 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $205,831 |
| Total income from all sources (including contributions) | 2022-12-31 | $-124,278,261 |
| Total loss/gain on sale of assets | 2022-12-31 | $0 |
| Total of all expenses incurred | 2022-12-31 | $25,099,482 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $24,179,556 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $7,000,000 |
| Value of total assets at end of year | 2022-12-31 | $395,349,017 |
| Value of total assets at beginning of year | 2022-12-31 | $544,932,591 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $919,926 |
| 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 |
| Was this plan covered by a fidelity bond | 2022-12-31 | Yes |
| Value of fidelity bond cover | 2022-12-31 | $10,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2022-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $639,600 |
| Administrative expenses (other) incurred | 2022-12-31 | $919,926 |
| 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 | $-149,377,743 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $395,349,017 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $544,726,760 |
| 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 |
| Value of interest in master investment trust accounts at end of year | 2022-12-31 | $388,349,017 |
| Value of interest in master investment trust accounts at beginning of year | 2022-12-31 | $537,292,991 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-12-31 | No |
| 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 |
| Contributions received in cash from employer | 2022-12-31 | $7,000,000 |
| Employer contributions (assets) at end of year | 2022-12-31 | $7,000,000 |
| Employer contributions (assets) at beginning of year | 2022-12-31 | $7,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $24,179,556 |
| Liabilities. Value of benefit claims payable at end of year | 2022-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2022-12-31 | $205,831 |
| Did the plan have assets held for investment | 2022-12-31 | 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 | 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2022-12-31 | 450250958 |
| 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $205,831 |
| Total income from all sources (including contributions) | 2022-01-01 | $-124,278,261 |
| Total loss/gain on sale of assets | 2022-01-01 | $0 |
| Total of all expenses incurred | 2022-01-01 | $25,099,482 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-01-01 | $24,179,556 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-01-01 | $7,000,000 |
| Value of total assets at end of year | 2022-01-01 | $395,349,017 |
| Value of total assets at beginning of year | 2022-01-01 | $544,932,591 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $919,926 |
| 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 |
| Was this plan covered by a fidelity bond | 2022-01-01 | Yes |
| Value of fidelity bond cover | 2022-01-01 | $10,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2022-01-01 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-01-01 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-01-01 | $639,600 |
| Administrative expenses (other) incurred | 2022-01-01 | $919,926 |
| 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 | $-149,377,743 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $395,349,017 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $544,726,760 |
| 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 |
| Value of interest in master investment trust accounts at end of year | 2022-01-01 | $388,349,017 |
| Value of interest in master investment trust accounts at beginning of year | 2022-01-01 | $537,292,991 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-01-01 | No |
| 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 |
| Contributions received in cash from employer | 2022-01-01 | $7,000,000 |
| Employer contributions (assets) at end of year | 2022-01-01 | $7,000,000 |
| Employer contributions (assets) at beginning of year | 2022-01-01 | $7,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-01-01 | $24,179,556 |
| Liabilities. Value of benefit claims payable at end of year | 2022-01-01 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2022-01-01 | $205,831 |
| Did the plan have assets held for investment | 2022-01-01 | 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 | 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2022-01-01 | 450250958 |
| 2021 : NORTHWESTERN ENERGY MT 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 | $205,831 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $0 |
| Total income from all sources (including contributions) | 2021-12-31 | $48,838,814 |
| Total loss/gain on sale of assets | 2021-12-31 | $0 |
| Total of all expenses incurred | 2021-12-31 | $125,050,262 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $123,432,366 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $13,312,351 |
| Value of total assets at end of year | 2021-12-31 | $544,932,591 |
| Value of total assets at beginning of year | 2021-12-31 | $620,938,208 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $1,617,896 |
| 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 |
| 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 | $92,848,067 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $639,600 |
| Administrative expenses (other) incurred | 2021-12-31 | $1,617,896 |
| 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 | $-76,211,448 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $544,726,760 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $620,938,208 |
| 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 | $537,292,991 |
| Value of interest in master investment trust accounts at beginning of year | 2021-12-31 | $618,250,559 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $35,526,463 |
| 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 |
| Contributions received in cash from employer | 2021-12-31 | $13,312,351 |
| Employer contributions (assets) at end of year | 2021-12-31 | $7,000,000 |
| Employer contributions (assets) at beginning of year | 2021-12-31 | $2,687,649 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $30,584,299 |
| Liabilities. Value of benefit claims payable at end of year | 2021-12-31 | $205,831 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2021-12-31 | 450250958 |
| 2020 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $0 |
| Total income from all sources (including contributions) | 2020-12-31 | $103,321,900 |
| Total loss/gain on sale of assets | 2020-12-31 | $0 |
| Total of all expenses incurred | 2020-12-31 | $30,784,715 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $29,196,611 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $9,902,585 |
| Value of total assets at end of year | 2020-12-31 | $620,938,208 |
| Value of total assets at beginning of year | 2020-12-31 | $548,401,023 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $1,588,104 |
| 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 |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Administrative expenses (other) incurred | 2020-12-31 | $1,588,104 |
| 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 | $72,537,185 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $620,938,208 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $548,401,023 |
| 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 | $618,250,559 |
| Value of interest in master investment trust accounts at beginning of year | 2020-12-31 | $545,414,696 |
| 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 |
| Contributions received in cash from employer | 2020-12-31 | $9,902,585 |
| Employer contributions (assets) at end of year | 2020-12-31 | $2,687,649 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $2,986,327 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $29,196,611 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2020-12-31 | 450250958 |
| 2019 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $0 |
| Total income from all sources (including contributions) | 2019-12-31 | $110,082,941 |
| Total loss/gain on sale of assets | 2019-12-31 | $0 |
| Total of all expenses incurred | 2019-12-31 | $28,261,720 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $26,699,284 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $11,901,327 |
| Value of total assets at end of year | 2019-12-31 | $548,401,023 |
| Value of total assets at beginning of year | 2019-12-31 | $466,579,802 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $1,562,436 |
| 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 |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Administrative expenses (other) incurred | 2019-12-31 | $1,562,436 |
| 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 | $81,821,221 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $548,401,023 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $466,579,802 |
| 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 | $545,414,696 |
| Value of interest in master investment trust accounts at beginning of year | 2019-12-31 | $466,494,802 |
| 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 | $11,901,327 |
| Employer contributions (assets) at end of year | 2019-12-31 | $2,986,327 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $85,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $26,699,284 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2019-12-31 | 450250958 |
| 2018 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $0 |
| Total income from all sources (including contributions) | 2018-12-31 | $-36,330,161 |
| Total loss/gain on sale of assets | 2018-12-31 | $0 |
| Total of all expenses incurred | 2018-12-31 | $27,620,058 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $26,092,932 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $85,000 |
| Value of total assets at end of year | 2018-12-31 | $466,579,802 |
| Value of total assets at beginning of year | 2018-12-31 | $530,530,021 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $1,527,126 |
| 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 | $5,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Administrative expenses (other) incurred | 2018-12-31 | $1,527,126 |
| 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 | $-63,950,219 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $466,579,802 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $530,530,021 |
| 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 | $466,494,802 |
| Value of interest in master investment trust accounts at beginning of year | 2018-12-31 | $522,530,021 |
| 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 | $85,000 |
| Employer contributions (assets) at end of year | 2018-12-31 | $85,000 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $8,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $26,092,932 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2018-12-31 | 450250958 |
| 2017 : NORTHWESTERN ENERGY MT 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 | $0 |
| 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 | $84,085,627 |
| Total loss/gain on sale of assets | 2017-12-31 | $0 |
| Total of all expenses incurred | 2017-12-31 | $24,984,992 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $23,465,494 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $9,500,000 |
| Value of total assets at end of year | 2017-12-31 | $530,530,021 |
| Value of total assets at beginning of year | 2017-12-31 | $471,429,386 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $1,519,498 |
| 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 | $5,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Administrative expenses (other) incurred | 2017-12-31 | $1,519,498 |
| 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 | $59,100,635 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $530,530,021 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $471,429,386 |
| 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 | $522,530,021 |
| Value of interest in master investment trust accounts at beginning of year | 2017-12-31 | $464,929,386 |
| 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 | $9,500,000 |
| Employer contributions (assets) at end of year | 2017-12-31 | $8,000,000 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $6,500,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $23,465,494 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2017-12-31 | 450250958 |
| 2016 : NORTHWESTERN ENERGY MT PENSION PLAN 2016 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $0 |
| 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 | $45,859,996 |
| Total loss/gain on sale of assets | 2016-12-31 | $0 |
| Total of all expenses incurred | 2016-12-31 | $25,864,218 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $24,376,950 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $9,000,000 |
| Value of total assets at end of year | 2016-12-31 | $471,429,386 |
| Value of total assets at beginning of year | 2016-12-31 | $451,433,608 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $1,487,268 |
| 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 | $5,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Administrative expenses (other) incurred | 2016-12-31 | $1,487,268 |
| 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 | $19,995,778 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $471,429,386 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $451,433,608 |
| 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 | $464,929,386 |
| Value of interest in master investment trust accounts at beginning of year | 2016-12-31 | $442,433,608 |
| 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 | $9,000,000 |
| Employer contributions (assets) at end of year | 2016-12-31 | $6,500,000 |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $9,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $24,376,950 |
| 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 | EIDE BAILLY, LLP |
| Accountancy firm EIN | 2016-12-31 | 450250958 |
| 2015 : NORTHWESTERN ENERGY MT 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 | $-4,224,967 |
| Total loss/gain on sale of assets | 2015-12-31 | $0 |
| Total of all expenses incurred | 2015-12-31 | $49,201,264 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $47,774,364 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $9,000,000 |
| Value of total assets at end of year | 2015-12-31 | $451,433,608 |
| Value of total assets at beginning of year | 2015-12-31 | $504,859,839 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $1,426,900 |
| 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 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Administrative expenses (other) incurred | 2015-12-31 | $1,426,900 |
| 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 | $-53,426,231 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $451,433,608 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $504,859,839 |
| 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 | $442,433,608 |
| Value of interest in master investment trust accounts at beginning of year | 2015-12-31 | $495,859,839 |
| 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 | $9,000,000 |
| Employer contributions (assets) at end of year | 2015-12-31 | $9,000,000 |
| Employer contributions (assets) at beginning of year | 2015-12-31 | $9,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2015-12-31 | $47,774,364 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2015-12-31 | 450250958 |
| 2014 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total income from all sources (including contributions) | 2014-12-31 | $57,215,645 |
| Total loss/gain on sale of assets | 2014-12-31 | $0 |
| Total of all expenses incurred | 2014-12-31 | $21,597,952 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $21,027,410 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $9,000,000 |
| Value of total assets at end of year | 2014-12-31 | $504,859,839 |
| Value of total assets at beginning of year | 2014-12-31 | $469,242,146 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $570,542 |
| 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 |
| Administrative expenses professional fees incurred | 2014-12-31 | $11,566 |
| Was this plan covered by a fidelity bond | 2014-12-31 | Yes |
| Value of fidelity bond cover | 2014-12-31 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Administrative expenses (other) incurred | 2014-12-31 | $558,976 |
| Liabilities. Value of operating payables at beginning of year | 2014-12-31 | $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 | 2014-12-31 | No |
| Value of net income/loss | 2014-12-31 | $35,617,693 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $504,859,839 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $469,242,146 |
| 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 | $495,859,839 |
| Value of interest in master investment trust accounts at beginning of year | 2014-12-31 | $460,242,146 |
| 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 | $9,000,000 |
| Employer contributions (assets) at end of year | 2014-12-31 | $9,000,000 |
| Employer contributions (assets) at beginning of year | 2014-12-31 | $9,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2014-12-31 | $21,027,410 |
| Liabilities. Value of benefit claims payable at beginning of year | 2014-12-31 | $0 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2014-12-31 | 450250958 |
| 2013 : NORTHWESTERN ENERGY MT 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 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $19,453 |
| Total income from all sources (including contributions) | 2013-12-31 | $59,734,565 |
| Total loss/gain on sale of assets | 2013-12-31 | $0 |
| Total of all expenses incurred | 2013-12-31 | $19,895,246 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $19,314,999 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $10,500,000 |
| Value of total assets at end of year | 2013-12-31 | $469,242,146 |
| Value of total assets at beginning of year | 2013-12-31 | $429,422,280 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $580,247 |
| Total interest from all sources | 2013-12-31 | $0 |
| 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 |
| Administrative expenses professional fees incurred | 2013-12-31 | $14,273 |
| Was this plan covered by a fidelity bond | 2013-12-31 | Yes |
| Value of fidelity bond cover | 2013-12-31 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2013-12-31 | No |
| Administrative expenses (other) incurred | 2013-12-31 | $565,974 |
| Liabilities. Value of operating payables at end of year | 2013-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2013-12-31 | $4,587 |
| 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 | $39,839,319 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $469,242,146 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $429,402,827 |
| 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 | $460,242,146 |
| Value of interest in master investment trust accounts at beginning of year | 2013-12-31 | $420,422,280 |
| 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 | $10,500,000 |
| Employer contributions (assets) at end of year | 2013-12-31 | $9,000,000 |
| Employer contributions (assets) at beginning of year | 2013-12-31 | $9,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2013-12-31 | $19,314,999 |
| Liabilities. Value of benefit claims payable at end of year | 2013-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2013-12-31 | $14,866 |
| 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 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2013-12-31 | 450250958 |
| 2012 : NORTHWESTERN ENERGY MT 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 | $19,453 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $8,608 |
| Total income from all sources (including contributions) | 2012-12-31 | $53,385,538 |
| Total loss/gain on sale of assets | 2012-12-31 | $0 |
| Total of all expenses incurred | 2012-12-31 | $19,269,361 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $18,824,001 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $9,000,000 |
| Value of total assets at end of year | 2012-12-31 | $429,422,280 |
| Value of total assets at beginning of year | 2012-12-31 | $395,295,258 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $445,360 |
| 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 |
| Administrative expenses professional fees incurred | 2012-12-31 | $23,553 |
| Was this plan covered by a fidelity bond | 2012-12-31 | Yes |
| Value of fidelity bond cover | 2012-12-31 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2012-12-31 | No |
| Administrative expenses (other) incurred | 2012-12-31 | $421,807 |
| Liabilities. Value of operating payables at end of year | 2012-12-31 | $4,587 |
| 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 | $34,116,177 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $429,402,827 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $395,286,650 |
| 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 | $420,422,280 |
| Value of interest in master investment trust accounts at beginning of year | 2012-12-31 | $384,795,258 |
| 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 | $9,000,000 |
| Employer contributions (assets) at end of year | 2012-12-31 | $9,000,000 |
| Employer contributions (assets) at beginning of year | 2012-12-31 | $10,500,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2012-12-31 | $18,824,001 |
| Liabilities. Value of benefit claims payable at end of year | 2012-12-31 | $14,866 |
| Liabilities. Value of benefit claims payable at beginning of year | 2012-12-31 | $8,608 |
| Did the plan have assets held for investment | 2012-12-31 | 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 | 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 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2012-12-31 | Disclaimer |
| Accountancy firm name | 2012-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2012-12-31 | 450250958 |
| 2011 : NORTHWESTERN ENERGY MT PENSION PLAN 2011 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $8,608 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $17,199 |
| Total income from all sources (including contributions) | 2011-12-31 | $23,513,186 |
| Total loss/gain on sale of assets | 2011-12-31 | $0 |
| Total of all expenses incurred | 2011-12-31 | $19,519,068 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $19,405,355 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $10,500,000 |
| Value of total assets at end of year | 2011-12-31 | $395,295,258 |
| Value of total assets at beginning of year | 2011-12-31 | $391,309,731 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $113,713 |
| Total interest from all sources | 2011-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2011-12-31 | No |
| Administrative expenses professional fees incurred | 2011-12-31 | $4,128 |
| Was this plan covered by a fidelity bond | 2011-12-31 | Yes |
| Value of fidelity bond cover | 2011-12-31 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Administrative expenses (other) incurred | 2011-12-31 | $109,585 |
| Liabilities. Value of operating payables at beginning of year | 2011-12-31 | $17,199 |
| 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 | $3,994,118 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $395,286,650 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $391,292,532 |
| 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 master investment trust accounts at end of year | 2011-12-31 | $384,795,258 |
| Value of interest in master investment trust accounts at beginning of year | 2011-12-31 | $380,809,731 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2011-12-31 | No |
| 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 | $10,500,000 |
| Employer contributions (assets) at end of year | 2011-12-31 | $10,500,000 |
| 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 | $19,405,355 |
| Liabilities. Value of benefit claims payable at end of year | 2011-12-31 | $8,608 |
| Did the plan have assets held for investment | 2011-12-31 | 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 | 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 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2011-12-31 | Disclaimer |
| Accountancy firm name | 2011-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2011-12-31 | 450250958 |
| 2010 : NORTHWESTERN ENERGY MT PENSION PLAN 2010 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $17,199 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $434 |
| Total income from all sources (including contributions) | 2010-12-31 | $53,869,813 |
| Total loss/gain on sale of assets | 2010-12-31 | $0 |
| Total of all expenses incurred | 2010-12-31 | $17,703,322 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $17,539,957 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $10,500,000 |
| Value of total assets at end of year | 2010-12-31 | $391,309,731 |
| Value of total assets at beginning of year | 2010-12-31 | $355,126,475 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $163,365 |
| Total interest from all sources | 2010-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2010-12-31 | No |
| Administrative expenses professional fees incurred | 2010-12-31 | $52,065 |
| Was this plan covered by a fidelity bond | 2010-12-31 | Yes |
| Value of fidelity bond cover | 2010-12-31 | $3,000,000 |
| Were there any nonexempt tranactions with any party-in-interest | 2010-12-31 | No |
| Administrative expenses (other) incurred | 2010-12-31 | $111,300 |
| Liabilities. Value of operating payables at end of year | 2010-12-31 | $17,199 |
| Liabilities. Value of operating payables at beginning of year | 2010-12-31 | $434 |
| 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 | $36,166,491 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $391,292,532 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $355,126,041 |
| 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 |
| Value of interest in master investment trust accounts at end of year | 2010-12-31 | $380,809,731 |
| Value of interest in master investment trust accounts at beginning of year | 2010-12-31 | $346,126,475 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $43,369,813 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2010-12-31 | No |
| 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 | $9,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2010-12-31 | $17,539,957 |
| Did the plan have assets held for investment | 2010-12-31 | 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 | 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 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2010-12-31 | Disclaimer |
| Accountancy firm name | 2010-12-31 | EIDE BAILLY, LLP |
| Accountancy firm EIN | 2010-12-31 | 450250958 |
