
Three months ended June 30, 2025 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	397.0	$	114.2	$	—	$	511.2
Commercial	126.2		45.5		—		171.7
Industrial	37.6		22.6		—		60.2
Off-system	22.8		—		—		22.8


Miscellaneous(1)	8.7		3.3		—		12.0
Subtotal	$	592.3	$	185.6	$	—	$	777.9
Electric Generation and Power Delivery
Residential	$	—	$	163.9	$	—	$	163.9
Commercial	—		161.0		—		161.0
Industrial	—		133.5		—		133.5
Wholesale	—		11.9		—		11.9

Miscellaneous(1)	—		(1.7)		—		(1.7)
Subtotal	$	—	$	468.6	$	—	$	468.6
Total Customer Revenues(2)	592.3		654.2		—		1,246.5
Other Revenues(3)	8.9		26.4		1.2		36.5
Total Operating Revenues	$	601.2	$	680.6	$	1.2	$	1,283.0
(1)Amounts included in Columbia Operations primarily relate to earnings share mechanisms and late fees. Amounts included in NIPSCO Operations primarily relate to late fees and property rentals. (2)Customer revenue amounts exclude intersegment revenues. See Note 17, "Business Segment Information," for discussion of intersegment revenues. (3)Amounts included in Columbia Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms. Amounts included in NIPSCO Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms, MISO multi-value projects and revenue from non-jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.

Three months ended June 30, 2024 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	332.3	$	78.6	$	—	$	410.9
Commercial	96.9		30.7		—		127.6
Industrial	33.0		16.1		—		49.1
Off-system	10.6		—		—		10.6
Wholesale	0.2		—		—		0.2

Miscellaneous(1)	4.3		2.6		—		6.9
Subtotal	$	477.3	$	128.0	$	—	$	605.3
Electric Generation and Power Delivery
Residential	$	—	$	156.9	$	—	$	156.9
Commercial	—		154.4		—		154.4
Industrial	—		119.7		—		119.7

Wholesale	—		11.2		—		11.2
Public Authority	—		1.9		—		1.9
Miscellaneous(1)	—		4.7		—		4.7
Subtotal	$	—	$	448.8	$	—	$	448.8
Total Customer Revenues(2)	477.3		576.8		—		1,054.1
Other Revenues(3)	10.1		20.4		0.1		30.6
Total Operating Revenues	$	487.4	$	597.2	$	0.1	$	1,084.7
(1)Amounts included in Columbia Operations primarily relate to earnings share mechanisms and late fees. Amounts included in NIPSCO Operations, primarily relate to revenue refunds, public repairs and property rentals. (2)Customer revenue amounts exclude intersegment revenues. See Note 17, "Business Segment Information," for discussion of intersegment revenues. (3)Amounts included in Columbia Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms. Amounts included in NIPSCO Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms, MISO multi-value projects and revenue from non-jurisdictional transmission assets.


Six months ended June 30, 2025 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	1,248.2	$	405.6	$	—	$	1,653.8
Commercial	432.7		148.6		—		581.3
Industrial	85.5		54.0		—		139.5
Off-system	45.1		—		—		45.1


Miscellaneous(1)	20.7		8.0		—		28.7
Subtotal	$	1,832.2	$	616.2	$	—	$	2,448.4
Electric Generation and Power Delivery
Residential	$	—	$	331.8	$	—	$	331.8
Commercial	—		321.1		—		321.1
Industrial	—		276.1		—		276.1
Wholesale	—		19.5		—		19.5

Miscellaneous(1)	—		(0.9)		—		(0.9)
Subtotal	$	—	$	947.6	$	—	$	947.6
Total Customer Revenues(2)	1,832.2		1,563.8		—		3,396.0
Other Revenues(3)	9.6		58.2		2.4		70.2
Total Operating Revenues	$	1,841.8	$	1,622.0	$	2.4	$	3,466.2
(1)Amounts included in Columbia Operations primarily relate to earnings share mechanisms and late fees. Amounts included in NIPSCO Operations primarily relate to late fees and property rentals. (2)Customer revenue amounts exclude intersegment revenues. See Note 17, "Business Segment Information," for discussion of intersegment revenues. (3)Amounts included in Columbia Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms. Amounts included in NIPSCO Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms, MISO multi-value projects and revenue from non-jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.

Six months ended June 30, 2024 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	960.3	$	290.7	$	—	$	1,251.0
Commercial	317.3		105.4		—		$	422.7
Industrial	73.1		39.9		—		$	113.0
Off-system	23.4		—		—		$	23.4
Wholesale	1.0		—		—		$	1.0

Miscellaneous(1)	12.5		10.5		—		$	23.0
Subtotal	$	1,387.6	$	446.5	$	—	$	1,834.1
Electric Generation and Power Delivery
Residential	$	—	$	300.7	$	—	$	300.7
Commercial	—		297.3		—		$	297.3
Industrial	—		235.6		—		$	235.6

Wholesale	—		17.5		—		$	17.5
Public Authority	—		4.0		—		$	4.0
Miscellaneous(1)	—		7.9		—		$	7.9
Subtotal	$	—	$	863.0	$	—	$	863.0
Total Customer Revenues(2)	1,387.6		1,309.5		—		2,697.1
Other Revenues(3)	53.5		40.1		0.3		93.9
Total Operating Revenues	$	1,441.1	$	1,349.6	$	0.3	$	2,791.0
(1)Amounts included in Columbia Operations primarily relate to earnings share mechanisms and late fees. Amounts included in NIPSCO Operations, primarily relate to revenue refunds, public repairs and property rentals. (2)Customer revenue amounts exclude intersegment revenues. See Note 17, "Business Segment Information," for discussion of intersegment revenues. (3)Amounts included in Columbia Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms. Amounts included in NIPSCO Operations primarily relate to alternative revenue programs including weather normalization adjustment mechanisms, MISO multi-value projects and revenue from non-jurisdictional transmission assets.