BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS
Accounts receivable, less reserve of $1.5 and $1.7, respectively	$ 153.8		$ 172.9
Accrued unbilled revenues	64.7		62.6
Advances to parent	304.8		319.5
Fuel inventories	46.3		57.6
Materials and supplies, at average cost	90.6		126.7
Fuel clause under recoveries	39.5		2.0
Other	19.6		25.5
Total current assets	719.3		766.8
OTHER PROPERTY AND INVESTMENTS	4.7		5.0
PROPERTY, PLANT AND EQUIPMENT
In service	12,765.0		11,988.7
Construction work in progress	141.6		376.4
Total property, plant and equipment	12,906.6		12,365.1
Less: accumulated depreciation	3,868.1		3,727.4
Net property, plant and equipment	9,038.5		8,637.7
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	306.0		285.8
Other	8.1		9.2
Total deferred charges and other assets	314.1		295.0
TOTAL ASSETS	10,076.6		9,704.5
CURRENT LIABILITIES
Accounts payable	175.0		215.0
Customer deposits	83.0		83.6
Accrued taxes	41.9		44.0
Accrued interest	37.9		44.5
Accrued compensation	29.5		33.8
Long-term debt due within one year	0.0		250.0
Fuel clause over recoveries	4.8		0.3
Other	65.1		86.8
Total current liabilities	437.2		758.0
LONG-TERM DEBT	3,195.2		2,896.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	133.3		137.9
Deferred income taxes	951.4		892.7
Regulatory liabilities	1,223.5		1,270.7
Other	170.6		137.8
Total deferred credits and other liabilities	2,485.9		2,446.3
Total liabilities	6,118.3		6,101.2
COMMITMENTS AND CONTINGENCIES (NOTE 14)
STOCKHOLDER'S EQUITY
Common stockholder's equity	1,036.6		1,031.8
Retained earnings	2,921.7		2,571.5
Total stockholder's equity	3,958.3		3,603.3
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	10,076.6		9,704.5
Accumulated Deferred Investment Tax Credit	$ 7.1		$ 7.2