Investment in ATC and ATC Holdco (Tables)

3 Months Ended

Mar. 31, 2024

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments Financial Data

MGE Transco recorded the following amounts related to its investment in ATC:

	Three Months Ended
	March 31,
(In thousands)	2024		2023
Equity earnings from investment in ATC	$	2,722	$	2,583
Dividends received from ATC		2,106		2,206
Capital contributions to ATC		715		357

ATC's summarized financial data is as follows:

	Three Months Ended
	March 31,
(In thousands)	2024			2023
Operating revenues	$	211,928		$	200,426
Operating expenses		(104,842	)		(99,076	)
Other income, net		187			391
Interest expense, net		(35,418	)		(32,910	)
Earnings before members' income taxes	$	71,855		$	68,831