
Three months ended June 30, 2026 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	399.9	$	102.2	$	—	$	502.1
Commercial	124.6		41.4		—		166.0
Industrial	40.3		21.0		—		61.3
Off-system	11.5		—		—		11.5


Miscellaneous(1)	8.5		3.0		—		11.5
Subtotal	$	584.8	$	167.6	$	—	$	752.4
Electric Generation and Power Delivery
Residential	—		183.1		—		183.1
Commercial	—		181.7		—		181.7
Industrial	—		159.2		—		159.2
Wholesale	—		9.9		—		9.9
Public Authority	—		3.7		—		3.7
Miscellaneous(1)	—		(0.5)		—		(0.5)
Subtotal	$	—	$	537.1	$	—	$	537.1
Total Customer Revenues(2)	584.8		704.7		—		1,289.5
Other Revenues(3)	12.2		39.2		1.5		52.9
Total Operating Revenues	$	597.0	$	743.9	$	1.5	$	1,342.4
(1)Amounts included in Columbia Operations primarily relate to earnings share mechanisms, late fees, and wholesale revenues. Amounts included in NIPSCO Operations primarily relate to late fees, property rentals, transmission revenue, and offsetting regulatory program deferrals. (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 FERC jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.

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 FERC jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.


Six months ended June 30, 2026 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	1,309.1	$	420.8	$	—	$	1,729.9
Commercial	455.6		157.0		—		612.6
Industrial	97.7		55.1		—		152.8
Off-system	28.3		—		—		28.3


Miscellaneous(1)	22.7		6.1		—		28.8
Subtotal	$	1,913.4	$	639.0	$	—	$	2,552.4
Electric Generation and Power Delivery
Residential	$	—	$	359.9	$	—	$	359.9
Commercial	—		353.8		—		353.8
Industrial	—		314.7		—		314.7
Wholesale	—		18.4		—		18.4
Public Authority	—		8.0		—		8.0
Miscellaneous(1)	—		4.6		—		4.6
Subtotal	$	—	$	1,059.4	$	—	$	1,059.4
Total Customer Revenues(2)	1,913.4		1,698.4		—		3,611.8
Other Revenues(3)	6.8		84.0		2.9		93.7
Total Operating Revenues	$	1,920.2	$	1,782.4	$	2.9	$	3,705.5
(1)Amounts included in Columbia Operations are primarily relate to earnings share mechanisms, late fees, and wholesale revenues. Amounts included in NIPSCO Operations primarily relate to late fees, property rentals, transmission revenue, and offsetting regulatory program deferrals. (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 adjustment mechanisms, MISO multi-value projects and revenue from FERC jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.

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 are 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 weather normalization adjustment mechanisms. Amounts included in NIPSCO Operations primarily relate to MISO multi-value projects and revenue from FERC jurisdictional transmission assets. Amounts included in Corporate and Other primarily relate to products and services revenue.