ONEOK, Inc.
US ˙ NYSE ˙ US6826801036

SecurityOKE / ONEOK, Inc.
InstitutionHeronetta Management, L.P.
Latest Disclosed Ownership140,802 shares
Latest Disclosed Value $ 12,727,093
Heronetta Management, L.P. reports 0.42% decrease in ownership of OKE / ONEOK, Inc.

On May 1, 2026 - Heronetta Management, L.P. filed a 13F-HR form disclosing ownership of 140,802 shares of ONEOK, Inc. (US:OKE) valued at $12,727,093 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 141,402 shares of ONEOK, Inc.. This represents a change in shares of -0.42% during the quarter. The current value of the position is $12,524,338 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)
2026-05-01 2026-03-31 13F ONEOK INC COM 682680103 140,802 -600 -0.42 12,727 22.46 11.6154
2026-02-04 2025-12-31 13F ONEOK INC COM 682680103 141,402 -14,400 -9.24 10,393 -8.58 6.0094
2025-11-12 2025-09-30 13F ONEOK INC COM 682680103 155,802 -1,000 -0.64 11,369 -11.18 6.2259
2025-08-06 2025-06-30 13F ONEOK INC COM 682680103 156,802 0 0.00 12,800 -17.73 7.1293
2025-05-15 2025-03-31 13F ONEOK INC COM 682680103 156,802 -1,450 -0.92 15,558 -2.08 8.5001
2025-02-06 2024-12-31 13F ONEOK INC COM 682680103 158,252 0 0.00 15,889 10.17 9.0761
2024-10-31 2024-09-30 13F ONEOK INC COM 682680103 158,252 1,200 0.76 14,422 12.60 8.8170
2024-07-30 2024-06-30 13F ONEOK INC COM 682680103 157,052 0 0.00 12,808 1.72 8.1926
2024-05-01 2024-03-31 13F ONEOK INC COM 682680103 157,052 400 0.26 12,591 14.45 8.1298
2024-01-25 2023-12-31 13F ONEOK INC COM 682680103 156,652 -34,000 -17.83 11,000 -9.04 7.7911
2023-11-02 2023-09-30 13F ONEOK INC COM 682680103 190,652 105,399 123.63 12,093 129.86 8.8720
2023-08-09 2023-06-30 13F ONEOK INC COM 682680103 85,253 0 0.00 5,262 -2.86 3.8484
2023-05-10 2023-03-31 13F ONEOK INC COM 682680103 85,253 -18,632 -17.94 5,417 -20.64 3.9799
2023-02-10 2022-12-31 13F ONEOK INC COM 682680103 103,885 10,390 11.11 6,825 42.45 4.3046
2022-10-27 2022-09-30 13F ONEOK INC COM 682680103 93,495 0 0.00 4,791 -7.67 3.4347
2022-08-05 2022-06-30 13F ONEOK INC COM 682680103 93,495 -3,500 -3.61 5,189 -24.26 3.6241
2022-04-29 2022-03-31 13F ONEOK INC COM 682680103 96,995 0 0.00 6,851 20.21 4.4226
2022-02-03 2021-12-31 13F ONEOK INC COM 682680103 96,995 0 0.00 5,699 1.32 4.3186
2021-10-27 2021-09-30 13F ONEOK INC COM 682680103 96,995 0 0.00 5,625 28.75 4.3343
2021-08-04 2021-06-30 13F ONEOK INC COM 682680103 96,995 0 0.00 4,369 -11.09 3.8343
2021-04-29 2021-03-31 13F ONEOK INC COM 682680103 96,995 -30,000 -23.62 4,914 -7.75 4.1099
2021-02-10 2020-12-31 13F ONEOK INC COM 682680103 126,995 1,800 1.44 5,327 63.76 4.4382
2020-11-10 2020-09-30 13F ONEOK INC COM 682680103 125,195 0 0.00 3,253 -21.78 3.3542
2020-07-24 2020-06-30 13F ONEOK INC COM 682680103 125,195 700 0.56 4,159 53.19 3.9277
2020-05-08 2020-03-31 13F ONEOK INC COM 682680103 124,495 11,700 10.37 2,715 -68.19 3.2395
2020-01-31 2019-12-31 13F ONEOK INC COM 682680103 112,795 0 0.00 8,535 2.68 5.5454
2019-11-08 2019-09-30 13F ONEOK INC COM 682680103 112,795 0 0.00 8,312 7.10 5.3475
2019-08-13 2019-06-30 13F ONEOK INC COM 682680103 112,795 -4,587 -3.91 7,761 -5.33 4.6913
2019-04-30 2019-03-31 13F ONEOK INC COM 682680103 117,382 1,200 1.03 8,198 30.79 4.5515
2019-02-12 2018-12-31 13F ONEOK INC COM 682680103 116,182 21,600 22.84 6,268 -2.25 4.0648
2018-11-13 2018-09-30 13F ONEOK INC COM 682680103 94,582 600 0.64 6,412 -2.30 3.5894
2018-07-31 2018-06-30 13F ONEOK INC COM 682680103 93,982 -5,147 -5.19 6,563 16.32 3.7439
2018-05-14 2018-03-31 13F ONEOK INC COM 682680103 99,129 0 0.00 5,642 6.49 3.4006
2018-02-14 2017-12-31 13F ONEOK INC COM 682680103 99,129 0 0.00 5,298 -3.55 2.8346
2017-10-31 2017-09-30 13F ONEOK INC COM 682680103 99,129 99,129 5,493 3.0428
2015-08-13 2015-06-30 13F ONEOK INC COM 682680103 0 -7,200 -100.00 0 -100.00
2015-05-12 2015-03-31 13F ONEOK INC COM 682680103 7,200 0 0.00 347 -3.07 0.1602
2015-02-12 2014-12-31 13F ONEOK INC COM 682680103 7,200 0 0.00 358 -24.15 0.1594
2014-11-10 2014-09-30 13F ONEOK INC COM 682680103 7,200 0 0.00 472 -3.67 0.1807
2014-08-13 2014-06-30 13F ONEOK INC COM 682680103 7,200 0 0.00 490 14.75 0.1945
2014-05-12 2014-03-31 13F ONEOK INC COM 682680103 7,200 1,100 18.03 427 12.66 0.1981
2014-01-24 2013-12-31 13F ONEOK INC COM 682680103 6,100 0 0.00 379 16.62 0.1892
2013-11-15 2013-09-30 13F ONEOK INC COM 682680103 6,100 6,100 325 0.1739
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.