Segment Information Segment Information (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

:

	For the Year Ended December 31,
	2025								2024
(in millions)	Regulated Energy		Unregulated Energy		Other and Eliminations (1)		Total		Regulated Energy		Unregulated Energy		Other and Eliminations (1)		Total
Operating revenues, unaffiliated customers	$	685.7	$	244.3	$	0.2	$	930.2	$	578.3	$	208.9	$	0.2	$	787.4
Intersegment revenues (2)	2.1		27.6		(29.9)		(0.2)		5.1		19.5		(24.8)		(0.2)
	687.8		271.9		(29.7)		930.0		583.4		228.4		(24.6)		787.2
Less:
Natural gas, propane and electric costs	193.8		127.3		(29.6)		291.5		144.2		100.2		(24.6)		219.8
Operations and maintenance expenses	169.0		84.6		(0.4)		253.2		158.5		74.4		(0.3)		232.6
Depreciation and amortization	70.9		20.8		—		91.7		48.8		16.9		—		65.7
Other segment items (3)	32.1		5.6		—		37.7		35.7		5.2		—		40.9
Operating income	$	222.0	$	33.6	$	0.3	$	255.9	$	196.2	$	31.7	$	0.3	$	228.2
Other income, net							9.6								2.0
Interest charges							72.5								68.4
Income before income taxes							193.0								161.8
Income taxes							52.7								43.2
Net Income							$	140.3							$	118.6
Capital expenditures	$	409.8	$	39.7	$	20.9	$	470.4	$	320.2	$	33.9	$	1.7	$	355.8

(1) Other revenues and other operating income (loss) amounts are attributable to eliminations and unregulated subsidiaries that own real estate leased to the Company.

(2) All significant intersegment revenues are billed at market rates and have been eliminated from consolidated revenues.

(3) Other segment items for each reportable segment include: Regulated Energy- Other taxes and transaction and transition costs related to the acquisition and integration of FCG; Unregulated Energy - Other taxes.

	For the Year Ended December 31, 2023
(in millions)	Regulated Energy		Unregulated Energy		Other and Eliminations (1)		Total
Operating revenues, unaffiliated customers	$	471.6	$	199.0	$	0.2	$	670.8
Intersegment revenues (2)	2.0		24.1		(26.3)		(0.2)
	473.6		223.1		(26.1)		670.6
Less:
Natural gas, propane and electric costs	140.0		102.5		(26.0)		216.5
Operations and maintenance expenses	125.3		73.8		(0.3)		198.8
Depreciation and amortization	48.2		17.3		—		65.5
Other segment items (3)	33.9		5.1		—		39.0
Operating income	$	126.2	$	24.4	$	0.2	$	150.8
Other income, net							1.4
Interest charges							36.9
Income before income taxes							115.3
Income taxes							28.1
Net Income							$	87.2
Capital expenditures (4)	$	1,095.9	$	40.3	$	1.8	$	1,138.0

(1) Other revenues and other operating income (loss) amounts are attributable to eliminations and unregulated subsidiaries that own real estate leased to the Company.

(2) All significant intersegment revenues are billed at market rates and have been eliminated from consolidated revenues.

(3) Other segment items for each reportable segment include: Regulated Energy - Other taxes and transaction and transition costs related to the acquisition and integration of FCG; Unregulated Energy - Other taxes.

(4) Regulated capital expenditures in 2023 include our acquisition of FCG for $922.8 million. See Note 4 for additional details.

	As of December 31,
(in millions)	2025		2024
Identifiable Assets
Regulated Energy segment	$	3,425.3	$	3,042.9
Unregulated Energy segment	495.0		486.4
Other businesses and eliminations	74.5		47.7
Total identifiable assets	$	3,994.8	$	3,577.0