Report of Business Segments (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Summary of OGE Energy's Business Segments

The following tables, which include significant segment expenses, present the results of OGE Energy's business segments for the three and six months ended June 30, 2025 and 2024.

Three Months Ended June 30, 2025	Electric Company		Other Operations			Eliminations			Total
(In millions)
Operating revenues	$	741.6	$	—		$	—		$	741.6
Fuel, purchased power and direct transmission expense		261.1		—			—			261.1
Other operation and maintenance		126.3		0.8			—			127.1
Depreciation and amortization		140.6		—			—			140.6
Taxes other than income		26.2		—			—			26.2
Operating income (loss)		187.4		(0.8	)		—			186.6
Other income		7.0		9.0			(0.9	)		15.1
Interest expense		63.4		9.7			(0.9	)		72.2
Income tax expense (benefit)		23.3		(1.3	)		—			22.0
Net income (loss)	$	107.7	$	(0.2	)	$	—		$	107.5
Total assets	$	13,990.8	$	140.4		$	(42.1	)	$	14,089.1
Capital expenditures	$	273.7	$	—		$	—		$	273.7

Three Months Ended June 30, 2024	Electric Company		Other Operations			Eliminations			Total
(In millions)
Operating revenues	$	662.6	$	—		$	—		$	662.6
Fuel, purchased power and direct transmission expense		193.9		—			—			193.9
Other operation and maintenance		130.2		0.2			—			130.4
Depreciation and amortization		135.5		—			—			135.5
Taxes other than income		26.9		—			—			26.9
Operating income (loss)		176.1		(0.2	)		—			175.9
Other income		10.2		1.7			(1.4	)		10.5
Interest expense		54.9		11.4			(1.4	)		64.9
Income tax expense (benefit)		22.1		(2.9	)		—			19.2
Net income (loss)	$	109.3	$	(7.0	)	$	—		$	102.3
Total assets	$	13,073.1	$	323.5		$	(184.8	)	$	13,211.8
Capital expenditures	$	323.3	$	—		$	—		$	323.3

Six Months Ended June 30, 2025	Electric Company		Other Operations			Eliminations			Total
(In millions)
Operating revenues	$	1,489.3	$	—		$	—		$	1,489.3
Fuel, purchased power and direct transmission expense		585.1		—			—			585.1
Other operation and maintenance		248.1		0.8			—			248.9
Depreciation and amortization		278.0		—			—			278.0
Taxes other than income		57.4		—			—			57.4
Operating income (loss)		320.7		(0.8	)		—			319.9
Other income		15.9		10.2			(4.1	)		22.0
Interest expense		120.2		23.4			(4.1	)		139.5
Income tax expense (benefit)		37.7		(5.5	)		—			32.2
Net income (loss)	$	178.7	$	(8.5	)	$	—		$	170.2
Total assets	$	13,990.8	$	140.4		$	(42.1	)	$	14,089.1
Capital expenditures	$	523.2	$	—		$	—		$	523.2

Six Months Ended June 30, 2024	Electric Company		Other Operations			Eliminations			Total
(In millions)
Operating revenues	$	1,259.4	$	—		$	—		$	1,259.4
Fuel, purchased power and direct transmission expense		426.1		—			—			426.1
Other operation and maintenance		262.6		0.2			—			262.8
Depreciation and amortization		264.7		—			—			264.7
Taxes other than income		55.9		—			—			55.9
Operating income (loss)		250.1		(0.2	)		—			249.9
Other income		16.8		3.2			(3.1	)		16.9
Interest expense		106.3		21.9			(3.1	)		125.1
Income tax expense (benefit)		26.1		(5.3	)		—			20.8
Net income (loss)	$	134.5	$	(13.6	)	$	—		$	120.9
Total assets	$	13,073.1	$	323.5		$	(184.8	)	$	13,211.8
Capital expenditures	$	550.2	$	—		$	—		$	550.2