ONEOK Announces Cash Tender Offers in Connection with $5 Billion Debt Repayment Plan

TULSA, Okla. , Aug. 30, 2026 /PRNewswire/ -- ONEOK, Inc. (NYSE: OKE ) today announced the commencement of cash tender offers ("Tender Offers") to purchase up to an aggregate principal amount that will not result in an aggregate purchase price that exceeds $2 billion (subject to increase or decrease by ONEOK, the "Aggregate Maximum Tender Amount") of its outstanding debt securities of the 20 series listed in the table below (the "Notes" and, each series, a "series of Notes"), subject to the order of priority (the "Acceptance Priority Levels") as set forth in the table below under "Acceptance Priority Level." The Tender Offers form part of the previously-announced repayment plan to repurchase or repay $5 billion of ONEOK's senior debt. The price offered in the Tender Offers and other information relating to the Tender Offers are set forth in the table below. Acceptance Priority Level (1) Title of Notes Issuer Principal Amount Outstanding (in millions) CUSIP Number Par Call Date (2) Maturity Date Reference U.S. Treasury Security (3) Bloomberg Reference Page (3) Fixed Spread (Basis Points) Early Tender Premium (4) 1 3.950% Senior Notes due 2050 ONEOK, Inc. $797 682680CA9 September 1, 2049 March 1, 2050 5.000% UST due May 15, 2056 FIT1 + 100 $50 2 4.200% Senior Notes due 2047 ONEOK, Inc. $500 682680BY8 April 3, 2047 October 3, 2047 5.125% UST due August 15, 2046 FIT1 + 95 $50 3 4.500% Senior Notes due 2050 ONEOK, Inc. $271 682680BC6 September 15, 2049 March 15, 2050 5.000% UST due May 15, 2056 FIT1 + 105 $50 4 4.200% Senior Notes due 2045 ONEOK, Inc. $250 682680BW2 September 15, 2044 March 15, 2045 5.125% UST due August 15, 2046 FIT1 + 100 $50 5 4.250% Senior Notes due 2046 ONEOK, Inc. $500 682680BX0 March 15, 2046 September 15, 2046 5.125% UST due August 15, 2046 FIT1 + 95 $50 6 4.450% Senior Notes due 2049 ONEOK, Inc. $380 682680AZ6 March 1, 2049 September 1, 2049 5.125% UST due August 15, 2046 FIT1 + 100 $50 7 4.200% Senior Notes due 2042 ONEOK, Inc. $250 682680BU6 June 1, 2042 December 1, 2042 5.125% UST due August 15, 2046 FIT1 + 95 $50 8 4.850% Senior Notes due 2049 ONEOK, Inc. $500 682680BZ5 August 1, 2048 February 1, 2049 5.125% UST due August 15, 2046 FIT1 + 100 $50 9 4.950% Senior Notes due 2047 ONEOK, Inc. $407 682680AT0 January 13, 2047 July 13, 2047 5.125% UST due August 15, 2046 FIT1 + 100 $50 10 5.050% Senior Notes due 2045 ONEOK, Inc. $413 682680CY7 October 1, 2044 April 1, 2045 5.125% UST due August 15, 2046 FIT1 + 95 $50 11 5.200% Senior Notes due 2048 ONEOK, Inc. $753 682680AV5 January 15, 2048 July 15, 2048 5.125% UST due August 15, 2046 FIT1 + 95 $50 12 5.150% Senior Notes due 2043 ONEOK, Inc. $550 682680BV4 April 15, 2043 October 15, 2043 5.125% UST due August 15, 2046 FIT1 + 90 $50 13 5.450% Senior Notes due 2047 ONEOK, Inc. $448 682680DA8 December 1, 2046 June 1, 2047 5.125% UST due August 15, 2046 FIT1 + 100 $50 14 5.700% Senior Notes due 2054 ONEOK, Inc. $1,480 682680CF8 May 1, 2054 November 1, 2054 5.000% UST due May 15, 2056 FIT1 + 110 $50 15 5.850% Senior Notes due 2064 ONEOK, Inc. $722 682680CG6 May 1, 2064 November 1, 2064 5.000% UST due May 15, 2056 FIT1 + 120 $50 16 5.600% Senior Notes due 2044 ONEOK, Inc. $340 682680CW1 October 1, 2043 April 1, 2044 5.125% UST due August 15, 2046 FIT1 + 100 $50 17 3.100% Senior Notes due 2030 ONEOK, Inc. $780 682680BB8 December 15, 2029 March 15, 2030 4.375% UST due August 31, 2031 FIT1 + 35 $50 18 3.250% Senior Notes due 2030 ONEOK, Inc. $500 682680BS1 March 1, 2030 June 1, 2030 4.375% UST due August 31, 2031 FIT1 + 35 $50 19 3.400% Senior Notes due 2029 ONEOK, Inc. $714 682680AY9 June 1, 2029 September 1, 2029 4.250% UST due August 15, 2029 FIT1 + 30 $50 20 5.050% Senior Notes due 2034 ONEOK, Inc. $1,600 682680CE1 August 1, 2034 November 1, 2034 4.625% UST due August 15, 2036 FIT1 + 75 $50 (1) Subject to the satisfaction or waiver of the conditions of the Tender Offers described in the Offer to Purchase, including the Aggregate Maximum Tender Amount and proration, the principal amount of each series of Notes accepted for purchase will be determined in accordance with the applicable Acceptance Priority Level specified in the table above (with 1 being the highest Acceptance Priority Level and 20 being the lowest Acceptance Priority Level). Notes tendered at or prior to the Early Tender Deadline will be accepted for purchase in priority to Notes tendered after the Early Tender Deadline, regardless of the Acceptance Priority Level of such later-tendered Notes, as described in the Offer to Purchase under "Description of the Offers—Aggregate Maximum Tender Amount; Acceptance Priority Levels; Proration." (2) For each series of Notes in respect of which a par call date is indicated, the calculation of the applicable Early Tender Consideration (as defined below) will be performed taking into account such par call date. See Annex A to the Offer to Purchase for an overview of the calculation of the Early Tender Consideration (including the par call detai