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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Current assets    
Cash and cash equivalents $ 1,199 $ 733
Accounts receivable, net 2,580 2,326
Inventories 871 748
Other current assets 535 431
Total current assets 5,185 4,238
Property, plant and equipment    
Property, plant and equipment 54,454 52,274
Accumulated depreciation and amortization 7,296 6,339
Net property, plant and equipment 47,158 45,935
Other assets    
Investments in unconsolidated affiliates 2,773 2,316
Goodwill 8,108 8,091
Intangible assets, net 2,935 3,039
Other assets 457 450
Total other assets 14,273 13,896
Total assets 66,616 64,069
Current liabilities    
Current maturities of long-term debt (Note E) 1,741 1,059
Accounts payable 2,569 2,187
Commodity imbalances 225 260
Accrued interest 450 511
Other current liabilities 750 702
Total current liabilities 5,735 4,719
Long-term debt, excluding current maturities 31,986 31,018
Deferred credits and other liabilities    
Deferred income taxes 6,112 5,451
Other deferred credits 626 748
Total deferred credits and other liabilities 6,738 6,199
Commitments and contingencies (Note J)
Equity (Note F)    
Preferred stock 0 0
Common stock 7 6
Paid-in capital 20,934 16,354
Accumulated other comprehensive loss (65) (96)
Retained earnings 2,048 1,579
Treasury stock, at cost (843) (807)
Total ONEOK shareholders' equity 22,081 17,036
Noncontrolling interests in consolidated subsidiaries 76 5,097
Total equity 22,157 22,133
Total liabilities and equity $ 66,616 $ 64,069