ONEOK, Inc.
US ˙ NYSE ˙ US6826801036

SecurityOKE / ONEOK, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership5,552,597 shares
Latest Disclosed Value $ 501,999,945
Dimensional Fund Advisors Lp reports 3.50% increase in ownership of OKE / ONEOK, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 5,552,597 shares of ONEOK, Inc. (US:OKE) valued at $501,899,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 5,364,717 shares of ONEOK, Inc.. This represents a change in shares of 3.50% during the quarter. The current value of the position is $481,687,790 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F ONEOK INC COM 682680103 5,552,597 187,880 3.50 502,000 27.31 0.0225
2026-02-12 2025-12-31 13F ONEOK INC COM 682680103 5,364,717 -68,461 -1.26 394,312 -0.54 0.0827
2025-11-12 2025-09-30 13F ONEOK INC COM 682680103 5,433,178 703,834 14.88 396,462 2.70 0.0851
2025-08-12 2025-06-30 13F ONEOK INC COM 682680103 4,729,344 66,104 1.42 386,055 -16.56 0.0894
2025-05-13 2025-03-31 13F ONEOK INC COM 682680103 4,663,240 681,454 17.11 462,653 15.73 0.1150
2025-02-13 2024-12-31 13F ONEOK INC COM 682680103 3,981,786 299,115 8.12 399,783 19.13 0.0960
2024-11-07 2024-09-30 13F ONEOK INC COM 682680103 3,682,671 342,516 10.25 335,586 23.21 0.0814
2024-08-09 2024-06-30 13F ONEOK INC COM 682680103 3,340,155 132,326 4.13 272,377 5.91 0.0711
2024-05-10 2024-03-31 13F ONEOK INC COM 682680103 3,207,829 -6,514 -0.20 257,172 13.94 0.0696
2024-02-07 2023-12-31 13F ONEOK INC COM 682680103 3,214,343 30,098 0.95 225,716 11.74 0.0659
2023-11-09 2023-09-30 13F ONEOK INC COM 682680103 3,184,245 -168,927 -5.04 202,004 -2.39 0.0663
2023-08-09 2023-06-30 13F ONEOK INC COM 682680103 3,353,172 65,282 1.99 206,959 -0.93 0.0660
2023-05-12 2023-03-31 13F ONEOK INC COM 682680103 3,287,890 -367,056 -10.04 208,900 86,941.25 0.0704
2023-02-09 2022-12-31 13F ONEOK INC COM 682680103 3,654,946 -275,843 -7.02 240 -99.88 0.0709
2022-11-10 2022-09-30 13F ONEOK INC COM 682680103 3,930,789 105,506 2.76 201,431 -5.12 0.0773
2022-08-12 2022-06-30 13F ONEOK INC COM 682680103 3,825,283 194,919 5.37 212,302 -17.21 0.0762
2022-05-13 2022-03-31 13F ONEOK INC COM 682680103 3,630,364 102,474 2.90 256,435 23.71 0.0790
2022-02-09 2021-12-31 13F ONEOK INC COM 682680103 3,527,890 211,617 6.38 207,289 7.78 0.0627
2021-11-12 2021-09-30 13F ONEOK INC COM 682680103 3,316,273 293,315 9.70 192,333 14.36 0.0620
2021-08-12 2021-06-30 13F ONEOK INC COM 682680103 3,022,958 186,276 6.57 168,187 17.04 0.0533
2021-05-14 2021-03-31 13F ONEOK INC COM 682680103 2,836,682 531,227 23.04 143,699 62.41 0.0475
2021-03-08 2020-12-31 13F/A-2 ONEOK INC COM 682680103 2,305,455 426,212 22.68 88,480 81.19 0.0320
2021-02-11 2020-12-31 13F ONEOK INC COM 682680103 2,305,455 426,212 88,480 31,954.2730
2020-11-12 2020-09-30 13F ONEOK INC COM 682680103 1,879,243 68,089 3.76 48,833 -18.81 0.0207
2020-08-13 2020-06-30 13F ONEOK INC COM 682680103 1,811,154 20,847 1.16 60,149 54.14 0.0264
2020-05-14 2020-03-31 13F ONEOK INC COM 682680103 1,790,307 31,053 1.77 39,023 -70.69 0.0203
2020-02-14 2019-12-31 13F ONEOK INC COM 682680103 1,759,254 59,326 3.49 133,121 6.27 0.0485
2019-11-12 2019-09-30 13F ONEOK INC COM 682680103 1,699,928 45,984 2.78 125,265 10.08 0.0487
2019-08-13 2019-06-30 13F ONEOK INC COM 682680103 1,653,944 143,088 9.47 113,794 7.85 0.0442
2019-08-12 2019-03-31 13F/A-2 ONEOK INC COM 682680103 1,510,856 -139,344 -8.44 105,515 18.53 0.0420
2019-05-10 2019-03-31 13F ONEOK INC COM 682680103 1,510,856 -139,344 105,515
2019-02-26 2018-12-31 13F/A-1 ONEOK INC COM 682680103 1,650,200 465,583 39.30 89,021 10.85 0.0403
2019-02-13 2018-12-31 13F ONEOK INC COM 682680103 1,650,200 465,583 89,021
2018-11-13 2018-09-30 13F ONEOK INC COM 682680103 1,184,617 146,915 14.16 80,308 10.82 0.0306
2018-08-10 2018-06-30 13F ONEOK INC COM 682680103 1,037,702 11,485 1.12 72,465 24.06 0.0289
2018-05-11 2018-03-31 13F ONEOK INC COM 682680103 1,026,217 -72,794 -6.62 58,412 -0.57 0.0243
2018-02-12 2017-12-31 13F ONEOK INC COM 682680103 1,099,011 -23,582 -2.10 58,744 -5.56 0.0244
2017-11-13 2017-09-30 13F ONEOK INC COM 682680103 1,122,593 209,899 23.00 62,203 30.67 0.0272
2017-08-11 2017-06-30 13F ONEOK INC COM 682680103 912,694 13,443 1.49 47,603 -4.51 0.0220
2017-05-12 2017-03-31 13F ONEOK INC COM 682680103 899,251 16,026 1.81 49,850 -1.70 0.0238
2017-02-09 2016-12-31 13F ONEOK INC COM 682680103 883,225 -27,919 -3.06 50,711 8.31 0.0253
2016-11-10 2016-09-30 13F ONEOK INC COM 682680103 911,144 33,773 3.85 46,821 12.46 0.0253
2016-08-09 2016-06-30 13F ONEOK INC COM 682680103 877,371 3,801 0.44 41,632 59.63 0.0240
2016-05-13 2016-03-31 13F ONEOK INC COM 682680103 873,570 7,691 0.89 26,080 22.18 0.0156
2016-02-10 2015-12-31 13F ONEOK INC COM 682680103 865,879 13,812 1.62 21,345 -22.19 0.0133
2015-11-13 2015-09-30 13F ONEOK INC COM 682680103 852,067 195,429 29.76 27,431 5.82 0.0180
2015-08-14 2015-06-30 13F ONEOK INC COM 682680103 656,638 20,890 3.29 25,923 -15.47 0.0159
2015-05-14 2015-03-31 13F ONEOK INC COM 682680103 635,748 -17,661 -2.70 30,666 -5.74 0.0194
2015-02-06 2014-12-31 13F ONEOK INC COM 682680103 653,409 -62,553 -8.74 32,535 -30.68 0.0214
2014-11-13 2014-09-30 13F ONEOK INC COM 682680103 715,962 41,048 6.08 46,935 2.16 0.0333
2014-08-08 2014-06-30 13F ONEOK INC COM 682680103 674,914 211,899 45.77 45,944 67.50 0.0319
2014-05-14 2014-03-31 13F ONEOK INC COM 682680103 463,015 34,458 8.04 27,430 2.95 0.0205
2014-02-12 2013-12-31 13F ONEOK INC COM 682680103 428,557 15,103 3.65 26,643 20.87 0.0208
2013-11-13 2013-09-30 13F ONEOK INC COM 682680103 413,454 25,954 6.70 22,042 37.68 0.0191
2013-08-15 2013-06-30 13F ONEOK INC COM 682680103 387,500 387,500 16,010 0.0151
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.