| Plan Name | ONEOK, INC. 401(K) PLAN |
| Plan identification number | 002 |
| 401k Plan Type | Defined Contribution Pension |
| Plan Features/Benefits |
|
| Company Name: | ONEOK, INC. |
| Employer identification number (EIN): | 731520922 |
| NAIC Classification: | 486000 |
| NAIC Description: | Pipeline Transportation |
Additional information about ONEOK, INC.
| Jurisdiction of Incorporation: | Texas Secretary of State |
| Incorporation Date: | 2002-11-08 |
| Company Identification Number: | 0800141280 |
| Legal Registered Office Address: |
100 W 5TH ST ATTN: SCOTT SMITH MAIL DROP TULSA United States of America (USA) 74103 |
More information about ONEOK, INC.
| Plan id# | Filing Submission Date | Name of Administrator | Date Administrator Signed | Name of Company Sponsor | Date Sponsor Signed |
|---|---|---|---|---|---|
| 002 | 2024-01-01 | ANDREA COOPER | |||
| 002 | 2023-01-01 | ||||
| 002 | 2023-01-01 | JEFF BRANZ | |||
| 002 | 2022-01-01 | ||||
| 002 | 2022-01-01 | STUART KASISKE | |||
| 002 | 2021-01-01 | ||||
| 002 | 2021-01-01 | STUART KASISKE | |||
| 002 | 2020-01-01 | ||||
| 002 | 2019-01-01 | ||||
| 002 | 2019-01-01 | ||||
| 002 | 2018-01-01 | ||||
| 002 | 2017-01-01 | STUART KASISKE | |||
| 002 | 2016-01-01 | STUART KASISKE | |||
| 002 | 2016-01-01 | ||||
| 002 | 2015-01-01 | ANGELA WELLS | |||
| 002 | 2014-01-01 | ANGELA WELLS | ANGELA WELLS | 2015-10-14 | |
| 002 | 2013-01-01 | ANGELA WELLS | |||
| 002 | 2012-01-01 | ANGELA WELLS | ANGELA WELLS | 2014-12-10 | |
| 002 | 2011-01-01 | JOHN MANNING | |||
| 002 | 2010-01-01 | JOHN E MANNING | |||
| 002 | 2009-01-01 | JOHN MANNING |
| Measure | Date | Value |
|---|---|---|
| 2023 : ONEOK, INC. 401(K) PLAN 2023 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2023-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $13,895,000 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $13,895,000 |
| Total transfer of assets to this plan | 2023-12-31 | $0 |
| Total transfer of assets from this plan | 2023-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $0 |
| Expenses. Interest paid | 2023-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2023-12-31 | $0 |
| Total income from all sources (including contributions) | 2023-12-31 | $469,664,000 |
| Total loss/gain on sale of assets | 2023-12-31 | $779,000 |
| Total of all expenses incurred | 2023-12-31 | $83,499,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $83,499,000 |
| Expenses. Certain deemed distributions of participant loans | 2023-12-31 | $11,000 |
| Value of total corrective distributions | 2023-12-31 | $27,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $334,756,000 |
| Value of total assets at end of year | 2023-12-31 | $1,156,591,000 |
| Value of total assets at beginning of year | 2023-12-31 | $770,426,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $-38,000 |
| Total income from rents | 2023-12-31 | $0 |
| Total interest from all sources | 2023-12-31 | $2,265,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $23,422,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2023-12-31 | $11,407,000 |
| Assets. Real estate other than employer real property at end of year | 2023-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2023-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2023-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2023-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2023-12-31 | Yes |
| Value of fidelity bond cover | 2023-12-31 | $50,000,000 |
| 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 |
| Contributions received from participants | 2023-12-31 | $36,915,000 |
| Participant contributions at end of year | 2023-12-31 | $20,017,000 |
| Participant contributions at beginning of year | 2023-12-31 | $13,143,000 |
| Participant contributions at end of year | 2023-12-31 | $0 |
| Participant contributions at beginning of year | 2023-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2023-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2023-12-31 | $250,632,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2023-12-31 | $0 |
| Assets. Loans (other than to participants) 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 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $0 |
| Other income not declared elsewhere | 2023-12-31 | $0 |
| Administrative expenses (other) incurred | 2023-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2023-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2023-12-31 | $0 |
| Total non interest bearing cash at end of year | 2023-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2023-12-31 | $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 | 2023-12-31 | No |
| Income. Non cash contributions | 2023-12-31 | $0 |
| Value of net income/loss | 2023-12-31 | $386,165,000 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $1,156,591,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $770,426,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2023-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2023-12-31 | $0 |
| Investment advisory and management fees | 2023-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2023-12-31 | $377,485,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-12-31 | $256,414,000 |
| Value of interest in pooled separate accounts at end of year | 2023-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2023-12-31 | $0 |
| Interest on participant loans | 2023-12-31 | $735,000 |
| Income. Interest from loans (other than to participants) | 2023-12-31 | $0 |
| Interest earned on other investments | 2023-12-31 | $253,000 |
| Income. Interest from US Government securities | 2023-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2023-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2023-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2023-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $479,712,000 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $246,284,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $31,583,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $27,128,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $27,128,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $1,277,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2023-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2023-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2023-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2023-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2023-12-31 | $0 |
| Asset value of US Government securities at end of year | 2023-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2023-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2023-12-31 | $46,707,000 |
| Net investment gain/loss from pooled separate accounts | 2023-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $47,840,000 |
| Net gain/loss from 103.12 investment entities | 2023-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2023-12-31 | $226,545,000 |
| Assets. Invements in employer securities at beginning of year | 2023-12-31 | $214,372,000 |
| Assets. Value of employer real property at end of year | 2023-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2023-12-31 | $0 |
| Contributions received in cash from employer | 2023-12-31 | $47,209,000 |
| Employer contributions (assets) at end of year | 2023-12-31 | $21,249,000 |
| Employer contributions (assets) at beginning of year | 2023-12-31 | $13,085,000 |
| Income. Dividends from preferred stock | 2023-12-31 | $0 |
| Income. Dividends from common stock | 2023-12-31 | $12,015,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-12-31 | $83,499,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2023-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2023-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2023-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2023-12-31 | $0 |
| Contract administrator fees | 2023-12-31 | $-1,000 |
| 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 | 2023-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2023-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2023-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2023-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2023-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2023-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2023-12-31 | $0 |
| 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 | $54,752,000 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $53,973,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2023-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2023-12-31 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2023-12-31 | Unqualified |
| Accountancy firm name | 2023-12-31 | FORVIS MAZARS, LLP |
| Accountancy firm EIN | 2023-12-31 | 440160260 |
| Unrealized appreciation/depreciation of real estate assets | 2023-01-01 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-01-01 | $13,895,000 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $13,895,000 |
| Total transfer of assets to this plan | 2023-01-01 | $0 |
| Total transfer of assets from this plan | 2023-01-01 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $0 |
| 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 | $469,664,000 |
| Total loss/gain on sale of assets | 2023-01-01 | $779,000 |
| Total of all expenses incurred | 2023-01-01 | $83,499,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-01-01 | $83,499,000 |
| Expenses. Certain deemed distributions of participant loans | 2023-01-01 | $11,000 |
| Value of total corrective distributions | 2023-01-01 | $27,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-01-01 | $334,756,000 |
| Value of total assets at end of year | 2023-01-01 | $1,156,591,000 |
| Value of total assets at beginning of year | 2023-01-01 | $770,426,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $-38,000 |
| Total income from rents | 2023-01-01 | $0 |
| Total interest from all sources | 2023-01-01 | $2,265,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-01-01 | $23,422,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-01-01 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2023-01-01 | $11,407,000 |
| Assets. Real estate other than employer real property at end of year | 2023-01-01 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2023-01-01 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2023-01-01 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2023-01-01 | $0 |
| Was this plan covered by a fidelity bond | 2023-01-01 | Yes |
| Value of fidelity bond cover | 2023-01-01 | $50,000,000 |
| 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 |
| Contributions received from participants | 2023-01-01 | $36,915,000 |
| Participant contributions at end of year | 2023-01-01 | $20,017,000 |
| Participant contributions at beginning of year | 2023-01-01 | $13,143,000 |
| Participant contributions at end of year | 2023-01-01 | $0 |
| Participant contributions at beginning of year | 2023-01-01 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2023-01-01 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-01-01 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2023-01-01 | $250,632,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2023-01-01 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-01-01 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $0 |
| Assets. Loans (other than to participants) at end of year | 2023-01-01 | $0 |
| Assets. Loans (other than to participants) 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 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-01-01 | $0 |
| Other income not declared elsewhere | 2023-01-01 | $0 |
| Administrative expenses (other) incurred | 2023-01-01 | $0 |
| Liabilities. Value of operating payables at end of year | 2023-01-01 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2023-01-01 | $0 |
| Total non interest bearing cash at end of year | 2023-01-01 | $0 |
| Total non interest bearing cash at beginning of year | 2023-01-01 | $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 | 2023-01-01 | No |
| Income. Non cash contributions | 2023-01-01 | $0 |
| Value of net income/loss | 2023-01-01 | $386,165,000 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $1,156,591,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $770,426,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2023-01-01 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2023-01-01 | $0 |
| Investment advisory and management fees | 2023-01-01 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2023-01-01 | $377,485,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-01-01 | $256,414,000 |
| Value of interest in pooled separate accounts at end of year | 2023-01-01 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2023-01-01 | $0 |
| Interest on participant loans | 2023-01-01 | $735,000 |
| Income. Interest from loans (other than to participants) | 2023-01-01 | $0 |
| Interest earned on other investments | 2023-01-01 | $253,000 |
| Income. Interest from US Government securities | 2023-01-01 | $0 |
| Income. Interest from corporate debt instruments | 2023-01-01 | $0 |
| Value of interest in master investment trust accounts at end of year | 2023-01-01 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2023-01-01 | $0 |
| Value of interest in common/collective trusts at end of year | 2023-01-01 | $479,712,000 |
| Value of interest in common/collective trusts at beginning of year | 2023-01-01 | $246,284,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-01-01 | $31,583,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-01-01 | $1,277,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2023-01-01 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2023-01-01 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2023-01-01 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2023-01-01 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2023-01-01 | $0 |
| Asset value of US Government securities at end of year | 2023-01-01 | $0 |
| Asset value of US Government securities at beginning of year | 2023-01-01 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2023-01-01 | $46,707,000 |
| Net investment gain/loss from pooled separate accounts | 2023-01-01 | $0 |
| Net investment gain or loss from common/collective trusts | 2023-01-01 | $47,840,000 |
| Net gain/loss from 103.12 investment entities | 2023-01-01 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2023-01-01 | $226,545,000 |
| Assets. Invements in employer securities at beginning of year | 2023-01-01 | $214,372,000 |
| Assets. Value of employer real property at end of year | 2023-01-01 | $0 |
| Assets. Value of employer real property at beginning of year | 2023-01-01 | $0 |
| Contributions received in cash from employer | 2023-01-01 | $47,209,000 |
| Employer contributions (assets) at end of year | 2023-01-01 | $21,249,000 |
| Employer contributions (assets) at beginning of year | 2023-01-01 | $13,085,000 |
| Income. Dividends from preferred stock | 2023-01-01 | $0 |
| Income. Dividends from common stock | 2023-01-01 | $12,015,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-01-01 | $83,499,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2023-01-01 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2023-01-01 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2023-01-01 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2023-01-01 | $0 |
| Contract administrator fees | 2023-01-01 | $-1,000 |
| 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 | 2023-01-01 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2023-01-01 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2023-01-01 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2023-01-01 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2023-01-01 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2023-01-01 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2023-01-01 | $0 |
| 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 | $54,752,000 |
| Aggregate carrying amount (costs) on sale of assets | 2023-01-01 | $53,973,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2023-01-01 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2023-01-01 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2023-01-01 | 1 |
| Accountancy firm name | 2023-01-01 | FORVIS MAZARS, LLP |
| Accountancy firm EIN | 2023-01-01 | 440160260 |
| 2022 : ONEOK, INC. 401(K) PLAN 2022 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2022-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $19,001,000 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $19,001,000 |
| Total transfer of assets to this plan | 2022-12-31 | $0 |
| Total transfer of assets from this plan | 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 | $0 |
| Expenses. Interest paid | 2022-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2022-12-31 | $0 |
| Total income from all sources (including contributions) | 2022-12-31 | $7,823,000 |
| Total loss/gain on sale of assets | 2022-12-31 | $5,493,000 |
| Total of all expenses incurred | 2022-12-31 | $86,922,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $86,922,000 |
| Expenses. Certain deemed distributions of participant loans | 2022-12-31 | $62,000 |
| Value of total corrective distributions | 2022-12-31 | $9,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $69,694,000 |
| Value of total assets at end of year | 2022-12-31 | $770,426,000 |
| Value of total assets at beginning of year | 2022-12-31 | $849,525,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $-71,000 |
| Total income from rents | 2022-12-31 | $0 |
| Total interest from all sources | 2022-12-31 | $868,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $27,480,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-12-31 | $15,276,000 |
| Assets. Real estate other than employer real property at end of year | 2022-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2022-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2022-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2022-12-31 | Yes |
| Value of fidelity bond cover | 2022-12-31 | $50,000,000 |
| 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 |
| Contributions received from participants | 2022-12-31 | $30,721,000 |
| Participant contributions at end of year | 2022-12-31 | $13,143,000 |
| Participant contributions at beginning of year | 2022-12-31 | $13,446,000 |
| Participant contributions at end of year | 2022-12-31 | $0 |
| Participant contributions at beginning of year | 2022-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2022-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2022-12-31 | $4,189,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2022-12-31 | $0 |
| 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 | $0 |
| Assets. Loans (other than to participants) at end of year | 2022-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2022-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $0 |
| Other income not declared elsewhere | 2022-12-31 | $0 |
| Administrative expenses (other) incurred | 2022-12-31 | $-71,000 |
| Liabilities. Value of operating payables at end of year | 2022-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2022-12-31 | $0 |
| Total non interest bearing cash at end of year | 2022-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2022-12-31 | $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 | 2022-12-31 | No |
| Income. Non cash contributions | 2022-12-31 | $0 |
| Value of net income/loss | 2022-12-31 | $-79,099,000 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $770,426,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $849,525,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2022-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2022-12-31 | $0 |
| Investment advisory and management fees | 2022-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-12-31 | $256,414,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-12-31 | $318,106,000 |
| Value of interest in pooled separate accounts at end of year | 2022-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2022-12-31 | $0 |
| Interest on participant loans | 2022-12-31 | $475,000 |
| Income. Interest from loans (other than to participants) | 2022-12-31 | $0 |
| Interest earned on other investments | 2022-12-31 | $0 |
| Income. Interest from US Government securities | 2022-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2022-12-31 | $0 |
| 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 | $0 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $246,284,000 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $263,233,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $27,128,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $20,652,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $20,652,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $393,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2022-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2022-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2022-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2022-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2022-12-31 | $0 |
| Asset value of US Government securities at end of year | 2022-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-12-31 | $-68,848,000 |
| Net investment gain/loss from pooled separate accounts | 2022-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-45,865,000 |
| Net gain/loss from 103.12 investment entities | 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 | 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 |
| Assets. Invements in employer securities at end of year | 2022-12-31 | $214,372,000 |
| Assets. Invements in employer securities at beginning of year | 2022-12-31 | $220,396,000 |
| Assets. Value of employer real property at end of year | 2022-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2022-12-31 | $0 |
| Contributions received in cash from employer | 2022-12-31 | $34,784,000 |
| Employer contributions (assets) at end of year | 2022-12-31 | $13,085,000 |
| Employer contributions (assets) at beginning of year | 2022-12-31 | $13,692,000 |
| Income. Dividends from preferred stock | 2022-12-31 | $0 |
| Income. Dividends from common stock | 2022-12-31 | $12,204,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $86,922,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-12-31 | $0 |
| Contract administrator fees | 2022-12-31 | $0 |
| 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 | 2022-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-12-31 | $0 |
| 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 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2022-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2022-12-31 | $0 |
| 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 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $70,869,000 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $65,376,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2022-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2022-12-31 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2022-12-31 | Unqualified |
| Accountancy firm name | 2022-12-31 | FORVIS, LLP |
| Accountancy firm EIN | 2022-12-31 | 440160260 |
| Unrealized appreciation/depreciation of real estate assets | 2022-01-01 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-01-01 | $19,001,000 |
| Total unrealized appreciation/depreciation of assets | 2022-01-01 | $19,001,000 |
| Total transfer of assets to this plan | 2022-01-01 | $0 |
| Total transfer of assets from this plan | 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 | $0 |
| Total income from all sources (including contributions) | 2022-01-01 | $7,823,000 |
| Total loss/gain on sale of assets | 2022-01-01 | $5,493,000 |
| Total of all expenses incurred | 2022-01-01 | $86,922,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-01-01 | $86,922,000 |
| Expenses. Certain deemed distributions of participant loans | 2022-01-01 | $62,000 |
| Value of total corrective distributions | 2022-01-01 | $9,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-01-01 | $69,694,000 |
| Value of total assets at end of year | 2022-01-01 | $770,426,000 |
| Value of total assets at beginning of year | 2022-01-01 | $849,525,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $-71,000 |
| Total income from rents | 2022-01-01 | $0 |
| Total interest from all sources | 2022-01-01 | $868,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-01-01 | $27,480,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-01-01 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-01-01 | $15,276,000 |
| Assets. Real estate other than employer real property at end of year | 2022-01-01 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2022-01-01 | $0 |
| Administrative expenses professional fees incurred | 2022-01-01 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2022-01-01 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2022-01-01 | $0 |
| Was this plan covered by a fidelity bond | 2022-01-01 | Yes |
| Value of fidelity bond cover | 2022-01-01 | $50,000,000 |
| 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 |
| Contributions received from participants | 2022-01-01 | $30,721,000 |
| Participant contributions at end of year | 2022-01-01 | $13,143,000 |
| Participant contributions at beginning of year | 2022-01-01 | $13,446,000 |
| Participant contributions at end of year | 2022-01-01 | $0 |
| Participant contributions at beginning of year | 2022-01-01 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2022-01-01 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-01-01 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2022-01-01 | $4,189,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2022-01-01 | $0 |
| 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 | $0 |
| Assets. Loans (other than to participants) at end of year | 2022-01-01 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2022-01-01 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-01-01 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-01-01 | $0 |
| Other income not declared elsewhere | 2022-01-01 | $0 |
| Administrative expenses (other) incurred | 2022-01-01 | $-71,000 |
| Liabilities. Value of operating payables at end of year | 2022-01-01 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2022-01-01 | $0 |
| Total non interest bearing cash at end of year | 2022-01-01 | $0 |
| Total non interest bearing cash at beginning of year | 2022-01-01 | $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 | 2022-01-01 | No |
| Income. Non cash contributions | 2022-01-01 | $0 |
| Value of net income/loss | 2022-01-01 | $-79,099,000 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $770,426,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $849,525,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2022-01-01 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2022-01-01 | $0 |
| Investment advisory and management fees | 2022-01-01 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-01-01 | $256,414,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-01-01 | $318,106,000 |
| Value of interest in pooled separate accounts at end of year | 2022-01-01 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2022-01-01 | $0 |
| Interest on participant loans | 2022-01-01 | $475,000 |
| Income. Interest from loans (other than to participants) | 2022-01-01 | $0 |
| Interest earned on other investments | 2022-01-01 | $0 |
| Income. Interest from US Government securities | 2022-01-01 | $0 |
| Income. Interest from corporate debt instruments | 2022-01-01 | $0 |
| 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 | $0 |
| Value of interest in common/collective trusts at end of year | 2022-01-01 | $246,284,000 |
| Value of interest in common/collective trusts at beginning of year | 2022-01-01 | $263,233,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-01-01 | $27,128,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-01-01 | $393,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2022-01-01 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2022-01-01 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2022-01-01 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2022-01-01 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2022-01-01 | $0 |
| Asset value of US Government securities at end of year | 2022-01-01 | $0 |
| Asset value of US Government securities at beginning of year | 2022-01-01 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-01-01 | $-68,848,000 |
| Net investment gain/loss from pooled separate accounts | 2022-01-01 | $0 |
| Net investment gain or loss from common/collective trusts | 2022-01-01 | $-45,865,000 |
| Net gain/loss from 103.12 investment entities | 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 | 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 |
| Assets. Invements in employer securities at end of year | 2022-01-01 | $214,372,000 |
| Assets. Invements in employer securities at beginning of year | 2022-01-01 | $220,396,000 |
| Assets. Value of employer real property at end of year | 2022-01-01 | $0 |
| Assets. Value of employer real property at beginning of year | 2022-01-01 | $0 |
| Contributions received in cash from employer | 2022-01-01 | $34,784,000 |
| Employer contributions (assets) at end of year | 2022-01-01 | $13,085,000 |
| Employer contributions (assets) at beginning of year | 2022-01-01 | $13,692,000 |
| Income. Dividends from preferred stock | 2022-01-01 | $0 |
| Income. Dividends from common stock | 2022-01-01 | $12,204,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-01-01 | $86,922,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2022-01-01 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-01-01 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-01-01 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-01-01 | $0 |
| Contract administrator fees | 2022-01-01 | $0 |
| 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 | 2022-01-01 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-01-01 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-01-01 | $0 |
| 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 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2022-01-01 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2022-01-01 | $0 |
| 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 |
| Aggregate proceeds on sale of assets | 2022-01-01 | $70,869,000 |
| Aggregate carrying amount (costs) on sale of assets | 2022-01-01 | $65,376,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2022-01-01 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2022-01-01 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2022-01-01 | 1 |
| Accountancy firm name | 2022-01-01 | FORVIS, LLP |
| Accountancy firm EIN | 2022-01-01 | 440160260 |
| 2021 : ONEOK, INC. 401(K) PLAN 2021 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2021-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $59,158,000 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $59,158,000 |
| Total transfer of assets to this plan | 2021-12-31 | $0 |
| Total transfer of assets from this plan | 2021-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $0 |
| Expenses. Interest paid | 2021-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2021-12-31 | $0 |
| Total income from all sources (including contributions) | 2021-12-31 | $243,967,000 |
| Total loss/gain on sale of assets | 2021-12-31 | $23,243,000 |
| Total of all expenses incurred | 2021-12-31 | $86,186,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $86,283,000 |
| Expenses. Certain deemed distributions of participant loans | 2021-12-31 | $0 |
| Value of total corrective distributions | 2021-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $63,871,000 |
| Value of total assets at end of year | 2021-12-31 | $849,525,000 |
| Value of total assets at beginning of year | 2021-12-31 | $691,744,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $-97,000 |
| Total income from rents | 2021-12-31 | $0 |
| Total interest from all sources | 2021-12-31 | $472,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $39,781,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $24,903,000 |
| Assets. Real estate other than employer real property at end of year | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2021-12-31 | $0 |
| Administrative expenses professional fees incurred | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2021-12-31 | Yes |
| Value of fidelity bond cover | 2021-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2021-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2021-12-31 | No |
| Contributions received from participants | 2021-12-31 | $27,074,000 |
| Participant contributions at end of year | 2021-12-31 | $13,446,000 |
| Participant contributions at beginning of year | 2021-12-31 | $11,445,000 |
| Participant contributions at end of year | 2021-12-31 | $0 |
| Participant contributions at beginning of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2021-12-31 | $3,975,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2021-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2021-12-31 | $0 |
| Assets. Loans (other than to participants) 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 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $0 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $-97,000 |
| Liabilities. Value of operating payables at end of year | 2021-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2021-12-31 | $0 |
| Total non interest bearing cash at end of year | 2021-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $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 | 2021-12-31 | No |
| Income. Non cash contributions | 2021-12-31 | $0 |
| Value of net income/loss | 2021-12-31 | $157,781,000 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $849,525,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $691,744,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2021-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2021-12-31 | $0 |
| Investment advisory and management fees | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $318,106,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $486,093,000 |
| Value of interest in pooled separate accounts at end of year | 2021-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2021-12-31 | $0 |
| Interest on participant loans | 2021-12-31 | $470,000 |
| Income. Interest from loans (other than to participants) | 2021-12-31 | $0 |
| Interest earned on other investments | 2021-12-31 | $0 |
| Income. Interest from US Government securities | 2021-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2021-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $263,233,000 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $20,652,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $14,140,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $14,140,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $2,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2021-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2021-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2021-12-31 | $0 |
| Asset value of US Government securities at end of year | 2021-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $55,260,000 |
| Net investment gain/loss from pooled separate accounts | 2021-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $2,182,000 |
| Net gain/loss from 103.12 investment entities | 2021-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2021-12-31 | $220,396,000 |
| Assets. Invements in employer securities at beginning of year | 2021-12-31 | $173,723,000 |
| Assets. Value of employer real property at end of year | 2021-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2021-12-31 | $0 |
| Contributions received in cash from employer | 2021-12-31 | $32,822,000 |
| Employer contributions (assets) at end of year | 2021-12-31 | $13,692,000 |
| Employer contributions (assets) at beginning of year | 2021-12-31 | $6,343,000 |
| Income. Dividends from preferred stock | 2021-12-31 | $0 |
| Income. Dividends from common stock | 2021-12-31 | $14,878,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $86,283,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $0 |
| Contract administrator fees | 2021-12-31 | $0 |
| 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 | 2021-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2021-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2021-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2021-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2021-12-31 | $0 |
| Did the plan have assets held for investment | 2021-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $80,825,000 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $57,582,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2021-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2021-12-31 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2021-12-31 | Unqualified |
| Accountancy firm name | 2021-12-31 | FORVIS, LLP |
| Accountancy firm EIN | 2021-12-31 | 440160260 |
| 2020 : ONEOK, INC. 401(K) PLAN 2020 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2020-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $-53,151,000 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $-53,151,000 |
| Total transfer of assets to this plan | 2020-12-31 | $0 |
| Total transfer of assets from this plan | 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 |
| Expenses. Interest paid | 2020-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2020-12-31 | $0 |
| Total income from all sources (including contributions) | 2020-12-31 | $59,729,000 |
| Total loss/gain on sale of assets | 2020-12-31 | $-28,697,000 |
| Total of all expenses incurred | 2020-12-31 | $60,877,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $60,912,000 |
| Expenses. Certain deemed distributions of participant loans | 2020-12-31 | $0 |
| Value of total corrective distributions | 2020-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $58,814,000 |
| Value of total assets at end of year | 2020-12-31 | $691,744,000 |
| Value of total assets at beginning of year | 2020-12-31 | $692,892,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $-35,000 |
| Total income from rents | 2020-12-31 | $0 |
| Total interest from all sources | 2020-12-31 | $566,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $31,424,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2020-12-31 | $17,734,000 |
| Assets. Real estate other than employer real property at end of year | 2020-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2020-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2020-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2020-12-31 | Yes |
| Value of fidelity bond cover | 2020-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2020-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Contributions received from participants | 2020-12-31 | $28,068,000 |
| Participant contributions at end of year | 2020-12-31 | $11,445,000 |
| Participant contributions at beginning of year | 2020-12-31 | $10,706,000 |
| Participant contributions at end of year | 2020-12-31 | $0 |
| Participant contributions at beginning of year | 2020-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2020-12-31 | $3,689,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2020-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2020-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2020-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $0 |
| Other income not declared elsewhere | 2020-12-31 | $0 |
| Administrative expenses (other) incurred | 2020-12-31 | $-35,000 |
| Liabilities. Value of operating payables at end of year | 2020-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2020-12-31 | $0 |
| Total non interest bearing cash at end of year | 2020-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2020-12-31 | $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 | 2020-12-31 | No |
| Income. Non cash contributions | 2020-12-31 | $0 |
| Value of net income/loss | 2020-12-31 | $-1,148,000 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $691,744,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $692,892,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2020-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2020-12-31 | $0 |
| Investment advisory and management fees | 2020-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2020-12-31 | $486,093,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2020-12-31 | $429,077,000 |
| Value of interest in pooled separate accounts at end of year | 2020-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2020-12-31 | $0 |
| Interest on participant loans | 2020-12-31 | $494,000 |
| Income. Interest from loans (other than to participants) | 2020-12-31 | $0 |
| Interest earned on other investments | 2020-12-31 | $0 |
| Income. Interest from US Government securities | 2020-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2020-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2020-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $14,140,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $18,078,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $18,078,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $72,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2020-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2020-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2020-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2020-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2020-12-31 | $0 |
| Asset value of US Government securities at end of year | 2020-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2020-12-31 | $50,773,000 |
| Net investment gain/loss from pooled separate accounts | 2020-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2020-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2020-12-31 | $173,723,000 |
| Assets. Invements in employer securities at beginning of year | 2020-12-31 | $223,942,000 |
| Assets. Value of employer real property at end of year | 2020-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2020-12-31 | $0 |
| Contributions received in cash from employer | 2020-12-31 | $27,057,000 |
| Employer contributions (assets) at end of year | 2020-12-31 | $6,343,000 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $11,089,000 |
| Income. Dividends from preferred stock | 2020-12-31 | $0 |
| Income. Dividends from common stock | 2020-12-31 | $13,690,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $60,912,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2020-12-31 | $0 |
| Contract administrator fees | 2020-12-31 | $0 |
| 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 | 2020-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2020-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2020-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2020-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2020-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2020-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2020-12-31 | $0 |
| Did the plan have assets held for investment | 2020-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $39,503,000 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $68,200,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2020-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2020-12-31 | $0 |
| Opinion of an independent qualified public accountant for this plan | 2020-12-31 | Unqualified |
| Accountancy firm name | 2020-12-31 | BKD |
| Accountancy firm EIN | 2020-12-31 | 440160260 |
| 2019 : ONEOK, INC. 401(K) PLAN 2019 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2019-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $54,531,000 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $54,531,000 |
| Total transfer of assets to this plan | 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 |
| Expenses. Interest paid | 2019-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2019-12-31 | $0 |
| Total income from all sources (including contributions) | 2019-12-31 | $223,614,000 |
| Total loss/gain on sale of assets | 2019-12-31 | $11,141,000 |
| Total of all expenses incurred | 2019-12-31 | $68,640,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $68,733,000 |
| Expenses. Certain deemed distributions of participant loans | 2019-12-31 | $0 |
| Value of total corrective distributions | 2019-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $63,445,000 |
| Value of total assets at end of year | 2019-12-31 | $692,892,000 |
| Value of total assets at beginning of year | 2019-12-31 | $537,918,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $-93,000 |
| Total income from rents | 2019-12-31 | $0 |
| Total interest from all sources | 2019-12-31 | $772,000 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $27,018,000 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2019-12-31 | $16,782,000 |
| Assets. Real estate other than employer real property at end of year | 2019-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2019-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2019-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2019-12-31 | Yes |
| Value of fidelity bond cover | 2019-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2019-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Contributions received from participants | 2019-12-31 | $25,887,000 |
| Participant contributions at end of year | 2019-12-31 | $10,706,000 |
| Participant contributions at beginning of year | 2019-12-31 | $9,337,000 |
| Participant contributions at end of year | 2019-12-31 | $0 |
| Participant contributions at beginning of year | 2019-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2019-12-31 | $6,384,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2019-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2019-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2019-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $0 |
| Other income not declared elsewhere | 2019-12-31 | $0 |
| Administrative expenses (other) incurred | 2019-12-31 | $-93,000 |
| 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 | $0 |
| Total non interest bearing cash at end of year | 2019-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $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 | 2019-12-31 | No |
| Income. Non cash contributions | 2019-12-31 | $0 |
| Value of net income/loss | 2019-12-31 | $154,974,000 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $692,892,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $537,918,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2019-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2019-12-31 | $0 |
| Investment advisory and management fees | 2019-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2019-12-31 | $429,077,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2019-12-31 | $324,930,000 |
| Value of interest in pooled separate accounts at end of year | 2019-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2019-12-31 | $0 |
| Interest on participant loans | 2019-12-31 | $438,000 |
| Income. Interest from loans (other than to participants) | 2019-12-31 | $0 |
| Interest earned on other investments | 2019-12-31 | $0 |
| Income. Interest from US Government securities | 2019-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2019-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2019-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $18,078,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $13,621,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $13,621,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $334,000 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2019-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2019-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2019-12-31 | $0 |
| Asset value of US Government securities at end of year | 2019-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2019-12-31 | $66,707,000 |
| Net investment gain/loss from pooled separate accounts | 2019-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2019-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2019-12-31 | $223,942,000 |
| Assets. Invements in employer securities at beginning of year | 2019-12-31 | $178,795,000 |
| Assets. Value of employer real property at end of year | 2019-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2019-12-31 | $0 |
| Contributions received in cash from employer | 2019-12-31 | $31,174,000 |
| Employer contributions (assets) at end of year | 2019-12-31 | $11,089,000 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $11,235,000 |
| Income. Dividends from preferred stock | 2019-12-31 | $0 |
| Income. Dividends from common stock | 2019-12-31 | $10,236,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $68,733,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $0 |
| Contract administrator fees | 2019-12-31 | $0 |
| 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 | 2019-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2019-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2019-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2019-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2019-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2019-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2019-12-31 | $0 |
| Did the plan have assets held for investment | 2019-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $52,389,000 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $41,248,000 |
| Liabilities. Value of acquisition indebtedness at end of year | 2019-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2019-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2019-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2019-12-31 | Unqualified |
| Accountancy firm name | 2019-12-31 | BKD |
| Accountancy firm EIN | 2019-12-31 | 440160260 |
| 2018 : ONEOK, INC. 401(K) PLAN 2018 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2018-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $0 |
| Total transfer of assets to this plan | 2018-12-31 | $73,153,000 |
| 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 |
| Expenses. Interest paid | 2018-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2018-12-31 | $0 |
| Total income from all sources (including contributions) | 2018-12-31 | $35,801,000 |
| Total loss/gain on sale of assets | 2018-12-31 | $0 |
| Total of all expenses incurred | 2018-12-31 | $41,318,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $41,390,000 |
| Expenses. Certain deemed distributions of participant loans | 2018-12-31 | $0 |
| Value of total corrective distributions | 2018-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $39,445,000 |
| Value of total assets at end of year | 2018-12-31 | $537,918,000 |
| Value of total assets at beginning of year | 2018-12-31 | $470,282,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $-72,000 |
| Total income from rents | 2018-12-31 | $0 |
| Total interest from all sources | 2018-12-31 | $350,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2018-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2018-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2018-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2018-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2018-12-31 | Yes |
| Value of fidelity bond cover | 2018-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2018-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Contributions received from participants | 2018-12-31 | $21,006,000 |
| Participant contributions at end of year | 2018-12-31 | $9,337,000 |
| Participant contributions at beginning of year | 2018-12-31 | $8,717,000 |
| Participant contributions at end of year | 2018-12-31 | $0 |
| Participant contributions at beginning of year | 2018-12-31 | $324,000 |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2018-12-31 | $3,318,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2018-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2018-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2018-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $0 |
| Other income not declared elsewhere | 2018-12-31 | $0 |
| Administrative expenses (other) incurred | 2018-12-31 | $-72,000 |
| Liabilities. Value of operating payables at end of year | 2018-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2018-12-31 | $0 |
| Total non interest bearing cash at end of year | 2018-12-31 | $0 |
| Total non interest bearing cash 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 |
| Income. Non cash contributions | 2018-12-31 | $0 |
| Value of net income/loss | 2018-12-31 | $-5,517,000 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $537,918,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $470,282,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2018-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2018-12-31 | $0 |
| Investment advisory and management fees | 2018-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2018-12-31 | $324,930,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2018-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2018-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2018-12-31 | $0 |
| Interest on participant loans | 2018-12-31 | $350,000 |
| Income. Interest from loans (other than to participants) | 2018-12-31 | $0 |
| Interest earned on other investments | 2018-12-31 | $0 |
| Income. Interest from US Government securities | 2018-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2018-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2018-12-31 | $460,970,000 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $13,621,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2018-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2018-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2018-12-31 | $0 |
| Asset value of US Government securities at end of year | 2018-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2018-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2018-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2018-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2018-12-31 | $178,795,000 |
| Assets. Invements in employer securities at beginning of year | 2018-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2018-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2018-12-31 | $0 |
| Contributions received in cash from employer | 2018-12-31 | $15,121,000 |
| Employer contributions (assets) at end of year | 2018-12-31 | $11,235,000 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $271,000 |
| Income. Dividends from preferred stock | 2018-12-31 | $0 |
| Income. Dividends from common stock | 2018-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $41,390,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $0 |
| Contract administrator fees | 2018-12-31 | $0 |
| 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 | 2018-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2018-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2018-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2018-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2018-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2018-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2018-12-31 | $0 |
| Did the plan have assets held for investment | 2018-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2018-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2018-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2018-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2018-12-31 | Unqualified |
| Accountancy firm name | 2018-12-31 | BKD |
| Accountancy firm EIN | 2018-12-31 | 440160260 |
| 2017 : ONEOK, INC. 401(K) PLAN 2017 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2017-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $0 |
| Total transfer of assets to this plan | 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 |
| Expenses. Interest paid | 2017-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2017-12-31 | $0 |
| Total income from all sources (including contributions) | 2017-12-31 | $79,872,000 |
| Total loss/gain on sale of assets | 2017-12-31 | $0 |
| Total of all expenses incurred | 2017-12-31 | $39,691,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $39,759,000 |
| Expenses. Certain deemed distributions of participant loans | 2017-12-31 | $0 |
| Value of total corrective distributions | 2017-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $34,732,000 |
| Value of total assets at end of year | 2017-12-31 | $470,282,000 |
| Value of total assets at beginning of year | 2017-12-31 | $430,101,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $-68,000 |
| Total income from rents | 2017-12-31 | $0 |
| Total interest from all sources | 2017-12-31 | $270,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2017-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2017-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2017-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2017-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2017-12-31 | Yes |
| Value of fidelity bond cover | 2017-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2017-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Contributions received from participants | 2017-12-31 | $18,824,000 |
| Participant contributions at end of year | 2017-12-31 | $8,717,000 |
| Participant contributions at beginning of year | 2017-12-31 | $7,483,000 |
| Participant contributions at end of year | 2017-12-31 | $324,000 |
| Participant contributions at beginning of year | 2017-12-31 | $312,000 |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2017-12-31 | $2,154,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2017-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2017-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2017-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $0 |
| Other income not declared elsewhere | 2017-12-31 | $0 |
| Administrative expenses (other) incurred | 2017-12-31 | $-68,000 |
| Liabilities. Value of operating payables at end of year | 2017-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2017-12-31 | $0 |
| Total non interest bearing cash at end of year | 2017-12-31 | $0 |
| Total non interest bearing cash 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 |
| Income. Non cash contributions | 2017-12-31 | $0 |
| Value of net income/loss | 2017-12-31 | $40,181,000 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $470,282,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $430,101,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2017-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2017-12-31 | $0 |
| Investment advisory and management fees | 2017-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2017-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2017-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2017-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2017-12-31 | $0 |
| Interest on participant loans | 2017-12-31 | $270,000 |
| Income. Interest from loans (other than to participants) | 2017-12-31 | $0 |
| Interest earned on other investments | 2017-12-31 | $0 |
| Income. Interest from US Government securities | 2017-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2017-12-31 | $460,970,000 |
| Value of interest in master investment trust accounts at beginning of year | 2017-12-31 | $422,044,000 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2017-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2017-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2017-12-31 | $0 |
| Asset value of US Government securities at end of year | 2017-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2017-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2017-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2017-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2017-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2017-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2017-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2017-12-31 | $0 |
| Contributions received in cash from employer | 2017-12-31 | $13,754,000 |
| Employer contributions (assets) at end of year | 2017-12-31 | $271,000 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $262,000 |
| Income. Dividends from preferred stock | 2017-12-31 | $0 |
| Income. Dividends from common stock | 2017-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $39,759,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $0 |
| Contract administrator fees | 2017-12-31 | $0 |
| 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 | 2017-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2017-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2017-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2017-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2017-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2017-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2017-12-31 | $0 |
| Did the plan have assets held for investment | 2017-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2017-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2017-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2017-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2017-12-31 | Unqualified |
| Accountancy firm name | 2017-12-31 | BKD |
| Accountancy firm EIN | 2017-12-31 | 440160260 |
| 2016 : ONEOK, INC. 401(K) PLAN 2016 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2016-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $0 |
| Total transfer of assets to this plan | 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 |
| Expenses. Interest paid | 2016-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2016-12-31 | $0 |
| Total income from all sources (including contributions) | 2016-12-31 | $157,359,000 |
| Total loss/gain on sale of assets | 2016-12-31 | $0 |
| Total of all expenses incurred | 2016-12-31 | $32,815,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $32,864,000 |
| Expenses. Certain deemed distributions of participant loans | 2016-12-31 | $0 |
| Value of total corrective distributions | 2016-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $31,389,000 |
| Value of total assets at end of year | 2016-12-31 | $430,101,000 |
| Value of total assets at beginning of year | 2016-12-31 | $305,557,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $-49,000 |
| Total income from rents | 2016-12-31 | $0 |
| Total interest from all sources | 2016-12-31 | $222,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2016-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2016-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2016-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2016-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2016-12-31 | Yes |
| Value of fidelity bond cover | 2016-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2016-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Contributions received from participants | 2016-12-31 | $17,111,000 |
| Participant contributions at end of year | 2016-12-31 | $7,483,000 |
| Participant contributions at beginning of year | 2016-12-31 | $6,689,000 |
| Participant contributions at end of year | 2016-12-31 | $312,000 |
| Participant contributions at beginning of year | 2016-12-31 | $297,000 |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2016-12-31 | $1,809,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2016-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2016-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2016-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $0 |
| Other income not declared elsewhere | 2016-12-31 | $0 |
| Administrative expenses (other) incurred | 2016-12-31 | $-49,000 |
| Liabilities. Value of operating payables at end of year | 2016-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2016-12-31 | $0 |
| Total non interest bearing cash at end of year | 2016-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $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 | 2016-12-31 | No |
| Income. Non cash contributions | 2016-12-31 | $0 |
| Value of net income/loss | 2016-12-31 | $124,544,000 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $430,101,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $305,557,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2016-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2016-12-31 | $0 |
| Investment advisory and management fees | 2016-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2016-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2016-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2016-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2016-12-31 | $0 |
| Interest on participant loans | 2016-12-31 | $222,000 |
| Income. Interest from loans (other than to participants) | 2016-12-31 | $0 |
| Interest earned on other investments | 2016-12-31 | $0 |
| Income. Interest from US Government securities | 2016-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2016-12-31 | $422,044,000 |
| Value of interest in master investment trust accounts at beginning of year | 2016-12-31 | $298,317,000 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2016-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2016-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2016-12-31 | $0 |
| Asset value of US Government securities at end of year | 2016-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2016-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2016-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2016-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2016-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2016-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2016-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2016-12-31 | $0 |
| Contributions received in cash from employer | 2016-12-31 | $12,469,000 |
| Employer contributions (assets) at end of year | 2016-12-31 | $262,000 |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $254,000 |
| Income. Dividends from preferred stock | 2016-12-31 | $0 |
| Income. Dividends from common stock | 2016-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $32,864,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $0 |
| Contract administrator fees | 2016-12-31 | $0 |
| 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 | 2016-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2016-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2016-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2016-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2016-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2016-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2016-12-31 | $0 |
| Did the plan have assets held for investment | 2016-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2016-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2016-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2016-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2016-12-31 | Unqualified |
| Accountancy firm name | 2016-12-31 | BKD |
| Accountancy firm EIN | 2016-12-31 | 440160260 |
| 2015 : ONEOK, INC. 401(K) PLAN 2015 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2015-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $0 |
| Total transfer of assets to this plan | 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 |
| Expenses. Interest paid | 2015-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2015-12-31 | $0 |
| Total income from all sources (including contributions) | 2015-12-31 | $-20,294,000 |
| Total loss/gain on sale of assets | 2015-12-31 | $0 |
| Total of all expenses incurred | 2015-12-31 | $26,308,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $26,387,000 |
| Expenses. Certain deemed distributions of participant loans | 2015-12-31 | $0 |
| Value of total corrective distributions | 2015-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $31,695,000 |
| Value of total assets at end of year | 2015-12-31 | $305,557,000 |
| Value of total assets at beginning of year | 2015-12-31 | $352,159,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $-79,000 |
| Total income from rents | 2015-12-31 | $0 |
| Total interest from all sources | 2015-12-31 | $195,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2015-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2015-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2015-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2015-12-31 | Yes |
| Value of fidelity bond cover | 2015-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2015-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Contributions received from participants | 2015-12-31 | $16,971,000 |
| Participant contributions at end of year | 2015-12-31 | $6,689,000 |
| Participant contributions at beginning of year | 2015-12-31 | $5,987,000 |
| Participant contributions at end of year | 2015-12-31 | $297,000 |
| Participant contributions at beginning of year | 2015-12-31 | $263,000 |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2015-12-31 | $2,302,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2015-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2015-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2015-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $0 |
| Other income not declared elsewhere | 2015-12-31 | $0 |
| Administrative expenses (other) incurred | 2015-12-31 | $-79,000 |
| Liabilities. Value of operating payables at end of year | 2015-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2015-12-31 | $0 |
| Total non interest bearing cash at end of year | 2015-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2015-12-31 | $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 | 2015-12-31 | No |
| Income. Non cash contributions | 2015-12-31 | $0 |
| Value of net income/loss | 2015-12-31 | $-46,602,000 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $305,557,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $352,159,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2015-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2015-12-31 | $0 |
| Investment advisory and management fees | 2015-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2015-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2015-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2015-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2015-12-31 | $0 |
| Interest on participant loans | 2015-12-31 | $195,000 |
| Income. Interest from loans (other than to participants) | 2015-12-31 | $0 |
| Interest earned on other investments | 2015-12-31 | $0 |
| Income. Interest from US Government securities | 2015-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2015-12-31 | $298,317,000 |
| Value of interest in master investment trust accounts at beginning of year | 2015-12-31 | $345,694,000 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2015-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2015-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2015-12-31 | $0 |
| Asset value of US Government securities at end of year | 2015-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2015-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2015-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2015-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2015-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2015-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2015-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2015-12-31 | $0 |
| Contributions received in cash from employer | 2015-12-31 | $12,422,000 |
| Employer contributions (assets) at end of year | 2015-12-31 | $254,000 |
| Employer contributions (assets) at beginning of year | 2015-12-31 | $215,000 |
| Income. Dividends from preferred stock | 2015-12-31 | $0 |
| Income. Dividends from common stock | 2015-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2015-12-31 | $26,387,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2015-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2015-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2015-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2015-12-31 | $0 |
| Contract administrator fees | 2015-12-31 | $0 |
| 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 | 2015-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2015-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2015-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2015-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2015-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2015-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2015-12-31 | $0 |
| Did the plan have assets held for investment | 2015-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2015-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2015-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2015-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2015-12-31 | Unqualified |
| Accountancy firm name | 2015-12-31 | BKD |
| Accountancy firm EIN | 2015-12-31 | 440160260 |
| 2014 : ONEOK, INC. 401(K) PLAN 2014 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2014-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $0 |
| Total transfer of assets to this plan | 2014-12-31 | $0 |
| Total transfer of assets from this plan | 2014-12-31 | $736,656,000 |
| 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 |
| Expenses. Interest paid | 2014-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2014-12-31 | $0 |
| Total income from all sources (including contributions) | 2014-12-31 | $44,661,000 |
| Total loss/gain on sale of assets | 2014-12-31 | $0 |
| Total of all expenses incurred | 2014-12-31 | $37,569,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $37,703,000 |
| Expenses. Certain deemed distributions of participant loans | 2014-12-31 | $-12,000 |
| Value of total corrective distributions | 2014-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $26,975,000 |
| Value of total assets at end of year | 2014-12-31 | $352,159,000 |
| Value of total assets at beginning of year | 2014-12-31 | $1,081,723,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $-122,000 |
| Total income from rents | 2014-12-31 | $0 |
| Total interest from all sources | 2014-12-31 | $181,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2014-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2014-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2014-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2014-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2014-12-31 | Yes |
| Value of fidelity bond cover | 2014-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2014-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Contributions received from participants | 2014-12-31 | $12,982,000 |
| Participant contributions at end of year | 2014-12-31 | $5,987,000 |
| Participant contributions at beginning of year | 2014-12-31 | $19,791,000 |
| Participant contributions at end of year | 2014-12-31 | $263,000 |
| Participant contributions at beginning of year | 2014-12-31 | $402,000 |
| Assets. Other investments not covered elsewhere at end of year | 2014-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2014-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2014-12-31 | $4,959,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2014-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2014-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2014-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $0 |
| Other income not declared elsewhere | 2014-12-31 | $0 |
| Administrative expenses (other) incurred | 2014-12-31 | $-122,000 |
| Liabilities. Value of operating payables at end of year | 2014-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2014-12-31 | $0 |
| Total non interest bearing cash at end of year | 2014-12-31 | $0 |
| Total non interest bearing cash 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 |
| Income. Non cash contributions | 2014-12-31 | $0 |
| Value of net income/loss | 2014-12-31 | $7,092,000 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $352,159,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $1,081,723,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2014-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2014-12-31 | $0 |
| Investment advisory and management fees | 2014-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2014-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2014-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2014-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2014-12-31 | $0 |
| Interest on participant loans | 2014-12-31 | $181,000 |
| Income. Interest from loans (other than to participants) | 2014-12-31 | $0 |
| Interest earned on other investments | 2014-12-31 | $0 |
| Income. Interest from US Government securities | 2014-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2014-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2014-12-31 | $345,694,000 |
| Value of interest in master investment trust accounts at beginning of year | 2014-12-31 | $1,061,209,000 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2014-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2014-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2014-12-31 | $0 |
| Asset value of US Government securities at end of year | 2014-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2014-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2014-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2014-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2014-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2014-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2014-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2014-12-31 | $0 |
| Contributions received in cash from employer | 2014-12-31 | $9,034,000 |
| Employer contributions (assets) at end of year | 2014-12-31 | $215,000 |
| Employer contributions (assets) at beginning of year | 2014-12-31 | $321,000 |
| Income. Dividends from preferred stock | 2014-12-31 | $0 |
| Income. Dividends from common stock | 2014-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2014-12-31 | $37,703,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2014-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2014-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2014-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2014-12-31 | $0 |
| Contract administrator fees | 2014-12-31 | $0 |
| 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 | 2014-12-31 | No |
| Assets. Corporate common stocks other than exployer securities at end of year | 2014-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2014-12-31 | $0 |
| 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 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2014-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2014-12-31 | $0 |
| Did the plan have assets held for investment | 2014-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2014-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2014-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2014-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2014-12-31 | Unqualified |
| Accountancy firm name | 2014-12-31 | BKD |
| Accountancy firm EIN | 2014-12-31 | 440160260 |
| 2013 : ONEOK, INC. 401(K) PLAN 2013 401k financial data | ||
| Unrealized appreciation/depreciation of real estate assets | 2013-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $0 |
| Total transfer of assets to this plan | 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 | $0 |
| Expenses. Interest paid | 2013-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2013-12-31 | $0 |
| Total income from all sources (including contributions) | 2013-12-31 | $329,360,000 |
| Total loss/gain on sale of assets | 2013-12-31 | $0 |
| Total of all expenses incurred | 2013-12-31 | $116,101,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $116,111,000 |
| Expenses. Certain deemed distributions of participant loans | 2013-12-31 | $81,000 |
| Value of total corrective distributions | 2013-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $45,849,000 |
| Value of total assets at end of year | 2013-12-31 | $1,081,723,000 |
| Value of total assets at beginning of year | 2013-12-31 | $868,464,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $-91,000 |
| Total income from rents | 2013-12-31 | $0 |
| Total interest from all sources | 2013-12-31 | $658,000 |
| 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 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2013-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2013-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2013-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2013-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2013-12-31 | Yes |
| Value of fidelity bond cover | 2013-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2013-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2013-12-31 | No |
| Contributions received from participants | 2013-12-31 | $26,086,000 |
| Participant contributions at end of year | 2013-12-31 | $19,791,000 |
| Participant contributions at beginning of year | 2013-12-31 | $21,094,000 |
| Participant contributions at end of year | 2013-12-31 | $402,000 |
| Participant contributions at beginning of year | 2013-12-31 | $797,000 |
| Assets. Other investments not covered elsewhere at end of year | 2013-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2013-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2013-12-31 | $1,963,000 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2013-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $0 |
| Assets. Loans (other than to participants) at end of year | 2013-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2013-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $0 |
| Other income not declared elsewhere | 2013-12-31 | $0 |
| Administrative expenses (other) incurred | 2013-12-31 | $-91,000 |
| 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 | $0 |
| Total non interest bearing cash at end of year | 2013-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2013-12-31 | $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 | 2013-12-31 | No |
| Income. Non cash contributions | 2013-12-31 | $0 |
| Value of net income/loss | 2013-12-31 | $213,259,000 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $1,081,723,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $868,464,000 |
| 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 |
| Assets. partnership/joint venture interests at end of year | 2013-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2013-12-31 | $0 |
| Investment advisory and management fees | 2013-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2013-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2013-12-31 | $0 |
| Value of interest in pooled separate accounts at end of year | 2013-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2013-12-31 | $0 |
| Interest on participant loans | 2013-12-31 | $658,000 |
| Income. Interest from loans (other than to participants) | 2013-12-31 | $0 |
| Interest earned on other investments | 2013-12-31 | $0 |
| Income. Interest from US Government securities | 2013-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2013-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2013-12-31 | $1,061,209,000 |
| Value of interest in master investment trust accounts at beginning of year | 2013-12-31 | $845,972,000 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2013-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2013-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2013-12-31 | $0 |
| Asset value of US Government securities at end of year | 2013-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2013-12-31 | $0 |
| Net investment gain/loss from pooled separate accounts | 2013-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $0 |
| Net gain/loss from 103.12 investment entities | 2013-12-31 | $0 |
| 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 |
| Assets. Invements in employer securities at end of year | 2013-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2013-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2013-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2013-12-31 | $0 |
| Contributions received in cash from employer | 2013-12-31 | $17,800,000 |
| Employer contributions (assets) at end of year | 2013-12-31 | $321,000 |
| Employer contributions (assets) at beginning of year | 2013-12-31 | $601,000 |
| Income. Dividends from preferred stock | 2013-12-31 | $0 |
| Income. Dividends from common stock | 2013-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2013-12-31 | $116,111,000 |
| Asset. Corporate debt instrument preferred debt at end of year | 2013-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2013-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2013-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2013-12-31 | $0 |
| Contract administrator fees | 2013-12-31 | $0 |
| 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 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2013-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2013-12-31 | $0 |
| 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 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2013-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2013-12-31 | $0 |
| Did the plan have assets held for investment | 2013-12-31 | 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 | 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 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at end of year | 2013-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2013-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2013-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2013-12-31 | Unqualified |
| Accountancy firm name | 2013-12-31 | BKD |
| Accountancy firm EIN | 2013-12-31 | 440160260 |
| 2012 : ONEOK, INC. 401(K) 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 | $101,003,000 |
| Total loss/gain on sale of assets | 2012-12-31 | $0 |
| Total of all expenses incurred | 2012-12-31 | $84,067,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $82,821,000 |
| Expenses. Certain deemed distributions of participant loans | 2012-12-31 | $1,268,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $43,948,000 |
| Value of total assets at end of year | 2012-12-31 | $868,464,000 |
| Value of total assets at beginning of year | 2012-12-31 | $851,528,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $-22,000 |
| Total interest from all sources | 2012-12-31 | $673,000 |
| 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 | Yes |
| 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 |
| Contributions received from participants | 2012-12-31 | $24,772,000 |
| Participant contributions at end of year | 2012-12-31 | $21,094,000 |
| Participant contributions at beginning of year | 2012-12-31 | $21,012,000 |
| Participant contributions at end of year | 2012-12-31 | $797,000 |
| Participant contributions at beginning of year | 2012-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2012-12-31 | $2,146,000 |
| Administrative expenses (other) incurred | 2012-12-31 | $-22,000 |
| 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 | $16,936,000 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $868,464,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $851,528,000 |
| 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 |
| Interest on participant loans | 2012-12-31 | $673,000 |
| Value of interest in master investment trust accounts at end of year | 2012-12-31 | $845,972,000 |
| Value of interest in master investment trust accounts at beginning of year | 2012-12-31 | $830,516,000 |
| 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 | $17,030,000 |
| Employer contributions (assets) at end of year | 2012-12-31 | $601,000 |
| Employer contributions (assets) at beginning of year | 2012-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2012-12-31 | $82,821,000 |
| 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 | Yes |
| 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 | BKD |
| Accountancy firm EIN | 2012-12-31 | 440160260 |
| 2011 : ONEOK, INC. 401(K) PLAN 2011 401k financial data | ||
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $0 |
| Total income from all sources (including contributions) | 2011-12-31 | $207,952,000 |
| Total of all expenses incurred | 2011-12-31 | $75,197,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $74,933,000 |
| Expenses. Certain deemed distributions of participant loans | 2011-12-31 | $130,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $39,861,000 |
| Value of total assets at end of year | 2011-12-31 | $851,528,000 |
| Value of total assets at beginning of year | 2011-12-31 | $718,773,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $134,000 |
| Total interest from all sources | 2011-12-31 | $810,000 |
| 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 |
| If this is an individual account plan, was there a blackout period | 2011-12-31 | Yes |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2011-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Contributions received from participants | 2011-12-31 | $23,064,000 |
| Participant contributions at end of year | 2011-12-31 | $21,012,000 |
| Participant contributions at beginning of year | 2011-12-31 | $21,650,000 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2011-12-31 | $883,000 |
| Administrative expenses (other) incurred | 2011-12-31 | $134,000 |
| 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 | $132,755,000 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $851,528,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $718,773,000 |
| 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 end of year | 2011-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2011-12-31 | $311,762,000 |
| Interest on participant loans | 2011-12-31 | $810,000 |
| Value of interest in master investment trust accounts at end of year | 2011-12-31 | $830,516,000 |
| Value of interest in master investment trust accounts at beginning of year | 2011-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $6,392,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $70,262,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $70,262,000 |
| Asset value of US Government securities at end of year | 2011-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $72,000 |
| 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 |
| Assets. Invements in employer securities at end of year | 2011-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2011-12-31 | $307,201,000 |
| Contributions received in cash from employer | 2011-12-31 | $15,914,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2011-12-31 | $74,933,000 |
| 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 | 2011-12-31 | Yes |
| Assets. Corporate common stocks other than exployer securities at end of year | 2011-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2011-12-31 | $1,434,000 |
| 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 | BKD, LLP |
| Accountancy firm EIN | 2011-12-31 | 440160260 |
| 2010 : ONEOK, INC. 401(K) PLAN 2010 401k financial data | ||
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $92,831,000 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $92,831,000 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $0 |
| Total income from all sources (including contributions) | 2010-12-31 | $148,599,000 |
| Total loss/gain on sale of assets | 2010-12-31 | $0 |
| Total of all expenses incurred | 2010-12-31 | $55,401,000 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $55,394,919 |
| Expenses. Certain deemed distributions of participant loans | 2010-12-31 | $6,081 |
| Value of total corrective distributions | 2010-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $38,380,000 |
| Value of total assets at end of year | 2010-12-31 | $718,773,000 |
| Value of total assets at beginning of year | 2010-12-31 | $625,575,000 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $0 |
| Total interest from all sources | 2010-12-31 | $952,219 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $16,103,233 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2010-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2010-12-31 | $4,565,684 |
| Was this plan covered by a fidelity bond | 2010-12-31 | Yes |
| Value of fidelity bond cover | 2010-12-31 | $50,000,000 |
| If this is an individual account plan, was there a blackout period | 2010-12-31 | Yes |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2010-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2010-12-31 | No |
| Contributions received from participants | 2010-12-31 | $22,396,000 |
| Participant contributions at end of year | 2010-12-31 | $21,650,000 |
| Participant contributions at beginning of year | 2010-12-31 | $20,217,000 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2010-12-31 | $505,000 |
| Other income not declared elsewhere | 2010-12-31 | $152,000 |
| 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 | $93,198,000 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $718,773,000 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $625,575,000 |
| 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 registered invesment companies (eg mutual funds) at end of year | 2010-12-31 | $311,762,000 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2010-12-31 | $264,448,000 |
| Interest on participant loans | 2010-12-31 | $922,000 |
| Income. Interest from US Government securities | 2010-12-31 | $30,219 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $6,392,000 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $7,681,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $70,262,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $38,611,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $38,611,000 |
| Asset value of US Government securities at end of year | 2010-12-31 | $72,000 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $110,000 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $180,548 |
| 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 |
| Assets. Invements in employer securities at end of year | 2010-12-31 | $307,201,000 |
| Assets. Invements in employer securities at beginning of year | 2010-12-31 | $293,042,000 |
| Contributions received in cash from employer | 2010-12-31 | $15,479,000 |
| Income. Dividends from common stock | 2010-12-31 | $11,537,549 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2010-12-31 | $55,394,919 |
| 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 | 2010-12-31 | Yes |
| Assets. Corporate common stocks other than exployer securities at end of year | 2010-12-31 | $1,434,000 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2010-12-31 | $1,466,000 |
| 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 | BKD, LLP |
| Accountancy firm EIN | 2010-12-31 | 440160260 |
| 2009 : ONEOK, INC. 401(K) PLAN 2009 401k financial data | ||
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2009-12-31 | $0 |
| 2023: ONEOK, INC. 401(K) PLAN 2023 form 5500 responses | ||
|---|---|---|
| 2023-01-01 | Type of plan entity | Single employer plan |
| 2023-01-01 | This submission is the final filing | 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: ONEOK, INC. 401(K) PLAN 2022 form 5500 responses | ||
| 2022-01-01 | Type of plan entity | Single employer plan |
| 2022-01-01 | This submission is the final filing | No |
| 2022-01-01 | Plan is a collectively bargained plan | No |
| 2022-01-01 | Plan funding arrangement – Trust | Yes |
| 2022-01-01 | Plan benefit arrangement - Trust | Yes |
| 2021: ONEOK, INC. 401(K) 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 | No |
| 2021-01-01 | Plan funding arrangement – Trust | Yes |
| 2021-01-01 | Plan benefit arrangement - Trust | Yes |
| 2020: ONEOK, INC. 401(K) 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 | No |
| 2020-01-01 | Plan funding arrangement – Trust | Yes |
| 2020-01-01 | Plan benefit arrangement - Trust | Yes |
| 2019: ONEOK, INC. 401(K) 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 | No |
| 2019-01-01 | Plan funding arrangement – Trust | Yes |
| 2019-01-01 | Plan benefit arrangement - Trust | Yes |
| 2018: ONEOK, INC. 401(K) 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 | No |
| 2018-01-01 | Plan funding arrangement – Trust | Yes |
| 2018-01-01 | Plan benefit arrangement - Trust | Yes |
| 2017: ONEOK, INC. 401(K) 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 | No |
| 2017-01-01 | Plan funding arrangement – Trust | Yes |
| 2017-01-01 | Plan benefit arrangement - Trust | Yes |
| 2016: ONEOK, INC. 401(K) PLAN 2016 form 5500 responses | ||
| 2016-01-01 | Type of plan entity | Single employer plan |
| 2016-01-01 | Submission has been amended | Yes |
| 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 | No |
| 2016-01-01 | Plan funding arrangement – Trust | Yes |
| 2016-01-01 | Plan benefit arrangement - Trust | Yes |
| 2015: ONEOK, INC. 401(K) 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 | No |
| 2015-01-01 | Plan funding arrangement – Trust | Yes |
| 2015-01-01 | Plan benefit arrangement - Trust | Yes |
| 2014: ONEOK, INC. 401(K) 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 | No |
| 2014-01-01 | Plan funding arrangement – Trust | Yes |
| 2014-01-01 | Plan benefit arrangement - Trust | Yes |
| 2013: ONEOK, INC. 401(K) 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: ONEOK, INC. 401(K) 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: ONEOK, INC. 401(K) PLAN 2011 form 5500 responses | ||
| 2011-01-01 | Type of plan entity | Single employer plan |
| 2011-01-01 | Submission has been amended | No |
| 2011-01-01 | This submission is the final filing | No |
| 2011-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 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: ONEOK, INC. 401(K) PLAN 2010 form 5500 responses | ||
| 2010-01-01 | Type of plan entity | Single employer plan |
| 2010-01-01 | Submission has been amended | No |
| 2010-01-01 | This submission is the final filing | No |
| 2010-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 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: ONEOK, INC. 401(K) PLAN 2009 form 5500 responses | ||
| 2009-01-01 | Type of plan entity | Single employer plan |
| 2009-01-01 | Submission has been amended | No |
| 2009-01-01 | This submission is the final filing | No |
| 2009-01-01 | This return/report is a short plan year return/report (less than 12 months) | No |
| 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 |