0001039684 2026-09-10 2026-09-10 8-K12B 0001039684 --12-31 false 2026-09-10 ONEOK, Inc. OK 001-13643 73-1520922 100 West Fifth Street Tulsa OK 74103 918 588-7000 false false false false Common stock, par value of $0.01 OKE NYSE false