CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
CURRENT ASSETS
Cash and cash equivalents	$ 500,000	$ 600,000
Accounts receivable	326,500,000	240,600,000
Accrued unbilled revenues	105,600,000	74,600,000
Income taxes receivable	200,000	0
Fuel inventories	144,900,000	148,300,000
Materials and supplies, at average cost	228,700,000	229,400,000
Fuel clause under recoveries	97,900,000	112,700,000
Other	65,000,000	88,900,000
Total current assets	969,300,000	895,100,000
OTHER PROPERTY AND INVESTMENTS
Other	134,400,000	124,200,000
Total other property and investments	134,400,000	124,200,000
PROPERTY, PLANT AND EQUIPMENT
In service	16,785,200,000	16,254,600,000
Construction work in progress	690,700,000	814,200,000
Total property, plant and equipment	17,475,900,000	17,068,800,000
Less: accumulated depreciation	5,100,600,000	4,982,200,000
Net property, plant and equipment	12,375,300,000	12,086,600,000
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	561,800,000	568,100,000
Other	48,300,000	42,000,000
Total deferred charges and other assets	610,100,000	610,100,000
TOTAL ASSETS	14,089,100,000	13,716,000,000
CURRENT LIABILITIES
Short-term debt	534,500,000	469,300,000
Accounts payable	287,900,000	305,700,000
Dividends payable	84,800,000	84,700,000
Customer deposits	120,300,000	111,100,000
Accrued taxes	69,900,000	58,800,000
Accrued interest	68,700,000	63,800,000
Accrued compensation	37,300,000	53,000,000
Long-term debt due within one year	0	32,400,000
Fuel clause over recoveries	6,300,000	9,300,000
Other	41,000,000	41,700,000
Total current liabilities	1,250,700,000	1,229,800,000
LONG-TERM DEBT	5,367,200,000	5,020,900,000
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	165,600,000	170,900,000
Deferred income taxes	1,402,900,000	1,371,100,000
Deferred investment tax credits	10,200,000	10,600,000
Regulatory liabilities	985,200,000	1,016,400,000
Other	262,400,000	255,400,000
Total deferred credits and other liabilities	2,826,300,000	2,824,400,000
Total liabilities	9,444,200,000	9,075,100,000
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,173,200,000	1,167,900,000
Retained earnings	3,474,200,000	3,475,700,000
Accumulated other comprehensive loss, net of tax	(2,500,000)	(2,700,000)
Total stockholders' equity	4,644,900,000	4,640,900,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	14,089,100,000	13,716,000,000
OG&E [Member]
CURRENT ASSETS
Cash and cash equivalents	200,000	200,000
Accounts receivable	326,000,000	240,100,000
Accrued unbilled revenues	105,600,000	74,600,000
Advances to parent	42,300,000	0
Fuel inventories	144,900,000	148,300,000
Materials and supplies, at average cost	228,700,000	229,400,000
Fuel clause under recoveries	97,900,000	112,700,000
Other	63,500,000	83,200,000
Total current assets	1,009,100,000	888,500,000
OTHER PROPERTY AND INVESTMENTS
Total other property and investments	4,500,000	4,500,000
PROPERTY, PLANT AND EQUIPMENT
In service	16,779,100,000	16,248,500,000
Construction work in progress	690,700,000	814,200,000
Total property, plant and equipment	17,469,800,000	17,062,700,000
Less: accumulated depreciation	5,100,600,000	4,982,200,000
Net property, plant and equipment	12,369,200,000	12,080,500,000
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	561,800,000	568,100,000
Other	46,200,000	39,700,000
Total deferred charges and other assets	608,000,000	607,800,000
TOTAL ASSETS	13,990,800,000	13,581,300,000
CURRENT LIABILITIES
Accounts payable	283,700,000	272,200,000
Advances from parent	0	247,600,000
Customer deposits	120,300,000	111,100,000
Accrued taxes	50,200,000	51,400,000
Accrued interest	66,300,000	61,400,000
Accrued compensation	37,300,000	53,000,000
Long-term debt due within one year	0	32,400,000
Fuel clause over recoveries	6,300,000	9,300,000
Other	40,900,000	41,800,000
Total current liabilities	605,000,000	880,200,000
LONG-TERM DEBT	4,960,200,000	4,614,300,000
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	97,500,000	102,200,000
Deferred income taxes	1,443,400,000	1,410,700,000
Deferred investment tax credits	10,200,000	10,600,000
Regulatory liabilities	985,200,000	1,016,400,000
Other	227,600,000	220,500,000
Total deferred credits and other liabilities	2,763,900,000	2,760,400,000
Total liabilities	8,329,100,000	8,254,900,000
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,746,100,000	1,589,500,000
Retained earnings	3,915,600,000	3,736,900,000
Total stockholders' equity	5,661,700,000	5,326,400,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 13,990,800,000	$ 13,581,300,000