SEGMENT INFORMATION

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

We use net income to measure segment profitability and to allocate resources to our businesses. At March 31, 2023, we reported two segments, which are described below.

Our utility segment includes our electric and natural gas utility operations, which serve customers in northeastern and central Wisconsin. Our electric utility operations are engaged in the generation, distribution, and sale of electricity. Our natural gas utility operations are engaged in the purchase, distribution, and sale of natural gas to retail customers as well as the transportation of customer-owned natural gas.

Our other segment primarily consists of equity earnings from our investment in Wisconsin River Power Company.

All of our operations and assets are located within the United States. The following tables show summarized financial information for the three months ended March 31, 2023 and 2022, related to our reportable segments:

(in millions)	Utility		Other		Wisconsin Public Service Corporation
Three months ended March 31, 2023
Operating revenues	$	491.5	$	—	$	491.5
Other operation and maintenance	107.9		—		107.9
Depreciation and amortization	55.0		—		55.0
Other income, net	11.0		0.7		11.7
Interest expense	21.8		—		21.8
Income tax expense	12.5		0.1		12.6
Net income	65.7		0.6		66.3
(in millions)	Utility		Other		Wisconsin Public Service Corporation
Three months ended March 31, 2022
Operating revenues	$	478.9	$	—	$	478.9
Other operation and maintenance	83.7		—		83.7
Depreciation and amortization	49.7		—		49.7
Other income, net	9.7		0.4		10.1
Interest expense	16.6		—		16.6
Income tax expense	23.9		0.1		24.0
Net income	76.3		0.3		76.6