
Three months ended September 30, 2026 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other(4)		Total
Gas Distribution
Residential	$	343.4	$	75.1	$	—	$	418.5
Commercial	98.2		35.4		—		133.6
Industrial	36.0		19.9		—		55.9
Off-system	6.8		—		—		6.8


Miscellaneous(1)	8.5		2.6		—		11.1
Subtotal	$	492.9	$	133.0	$	—	$	625.9
Electric Generation and Power Delivery
Residential	—		249.4		—		249.4
Commercial	—		213.4		6.5		219.9
Industrial	—		178.8		—		178.8
Wholesale	—		15.7		4.0		19.7
Public Authority	—		4.1		—		4.1
Miscellaneous(1)	—		1.3		—		1.3
Subtotal	$	—	$	662.7	$	10.5	$	673.2
Total Customer Revenues(2)	492.9		795.7		10.5		1,299.1
Other Revenues(3)	9.3		39.5		1.5		50.3
Total Operating Revenues	$	502.2	$	835.2	$	12.0	$	1,349.4
(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 16, "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. (4)Amounts included in Corporate and Other primarily relate to data center customer revenue and wholesale revenues from excess capacity sales into the MISO Planning Resource Auction.

Three months ended September 30, 2025 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	328.1	$	72.9	$	—	$	401.0
Commercial	95.1		32.2		—		127.3
Industrial	36.0		19.7		—		55.7
Off-system	13.8		—		—		13.8


Miscellaneous(1)	6.7		2.6		—		9.3
Subtotal	$	479.7	$	127.4	$	—	$	607.1
Electric Generation and Power Delivery
Residential	$	—	$	254.6	$	—	$	254.6
Commercial	—		210.6		—		210.6
Industrial	—		156.2		—		156.2

Wholesale	—		18.4		—		18.4

Miscellaneous(1)	—		(6.7)		—		(6.7)
Subtotal	$	—	$	633.1	$	—	$	633.1
Total Customer Revenues(2)	479.7		760.5		—		1,240.2
Other Revenues(3)	5.2		26.5		1.2		32.9
Total Operating Revenues	$	484.9	$	787.0	$	1.2	$	1,273.1
(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 16, "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.


Nine months ended September 30, 2026 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other(4)		Total
Gas Distribution
Residential	$	1,652.5	$	495.9	$	—	$	2,148.4
Commercial	553.8		192.4		—		746.2
Industrial	133.7		75.0		—		208.7
Off-system	35.1		—		—		35.1


Miscellaneous(1)	31.2		8.7		—		39.9
Subtotal	$	2,406.3	$	772.0	$	—	$	3,178.3
Electric Generation and Power Delivery
Residential	$	—	$	609.3	$	—	$	609.3
Commercial	—		567.2		6.5		573.7
Industrial	—		493.5		—		493.5
Wholesale	—		34.1		4.0		38.1
Public Authority	—		12.1		—		12.1
Miscellaneous(1)	—		5.9		—		5.9
Subtotal	$	—	$	1,722.1	$	10.5	$	1,732.6
Total Customer Revenues(2)	2,406.3		2,494.1		10.5		4,910.9
Other Revenues(3)	16.1		123.5		4.4		144.0
Total Operating Revenues	$	2,422.4	$	2,617.6	$	14.9	$	5,054.9
(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 16, "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. (4)Corporate and Other revenues primarily relate to data center customer revenue and wholesale revenue from excess capacity sales into the MISO Planning Resource Auction.

Nine months ended September 30, 2025 (in millions)	Columbia Operations		NIPSCO Operations		Corporate and Other		Total
Gas Distribution
Residential	$	1,576.3	$	478.5	$	—	$	2,054.8
Commercial	527.8		180.8		—		708.6
Industrial	121.5		73.7		—		195.2
Off-system	58.9		—		—		58.9


Miscellaneous(1)	27.4		10.6		—		38.0
Subtotal	$	2,311.9	$	743.6	$	—	$	3,055.5
Electric Generation and Power Delivery
Residential	$	—	$	586.4	$	—	$	586.4
Commercial	—		531.7		—		531.7
Industrial	—		432.3		—		432.3

Wholesale	—		37.9		—		37.9

Miscellaneous(1)	—		(7.6)		—		(7.6)
Subtotal	$	—	$	1,580.7	$	—	$	1,580.7
Total Customer Revenues(2)	2,311.9		2,324.3		—		4,636.2
Other Revenues(3)	14.8		84.7		3.6		103.1
Total Operating Revenues	$	2,326.7	$	2,409.0	$	3.6	$	4,739.3
(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 16, "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.