0001039684 2026-09-14 2026-09-14 0001039684 1 2026-09-14 2026-09-14 0001039684 1 2026-09-14 2026-09-14 0001039684 2 2026-09-14 2026-09-14 iso4217:USD pure S-3 424B5 EX-FILING FEES 333-296919 0001039684 ONEOK INC /NEW/ N/A true false S-3 ONEOK INC /NEW/ false Equity Common Stock, $0.01 par value per share true 1000000000.00 0.0001381 138100.00 1000000000.00 138100.00 0.00 138100.00 0.00 In accordance with Rules 456(b) and 457(r) under the Securities Act of 1933, as amended (the "Securities Act"), the registrant initially deferred payment of all of the registration fees for the Registration Statement on Form S-3 (Registration No. 333-296919), filed on June 18, 2026, as amended by Post-Effective Amendment No. 1, filed on September 10, 2026, except with respect to unsold securities that have been previously registered. true ONEOK, Inc./NEW/ S-3 333-296919 2026-08-04 138100.00 Equity Common Stock, $0.01 par value per share 1000000000.00 true ONEOK, Inc./NEW/ S-3 333-296919 2026-08-04 138100.00 The registrant has previously registered shares of common stock having a proposed maximum aggregate offering price of up to $1,000,000,000.00 offered by means of a prospectus supplement dated August 4, 2026 (the "Prior Prospectus Supplement") and the accompanying prospectus dated June 18, 2026 that formed a part of a registration statement on Form S-3 (Registration No. 333-296919). Of those shares of common stock, no shares of common stock have been sold. In connection with the filing of the Prior Prospectus Supplement, the registrant paid a registration fee of $138,100.00, of which the full amount relates to unsold common stock that is available to offset registration fees payable pursuant to this prospectus supplement. The registrant hereby offsets $138,100.00 of registration fees due under this prospectus supplement using the previously paid but unused registration fees associated with the Prior Prospectus Supplement. Accordingly, no filing fee is being paid herewith. 1000000000.00 true