ACQUISITIONS AND DISPOSITIONS (Tables)

9 Months Ended

Sep. 30, 2025

Discontinued Operations and Disposal Groups [Abstract]

Asset Acquisition

The table below summarizes the impact at acquisition on PSO’s balance sheets:

Plant Name	State	Fuel Type	Generation Capacity (MWs)	Property, Plant and Equipment, Net		Operating Lease Assets		Asset Retirement Obligations		Other Liabilities
				(in millions)
Green Country	OK	Natural Gas	795	$	818.9	$	—	$	—	$	91.4	(a)
Pixley	KS	Solar	189	379.6		8.9		12.4		—
Flat Ridge IV	KS	Wind	135	305.3		7.4		3.1		—
Flat Ridge V	KS	Wind	153	319.1		8.8		3.8		—
Total			1,272	$	1,822.9	$	25.1	$	19.3	$	91.4

(a)$50 million included in Regulatory Liabilities and Deferred Investment Tax Credits, $21 million included in Other Current Liabilities and $20 million included in Deferred Credits and Other Noncurrent Liabilities on PSO’s balance sheets.