CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Accounts receivable, less reserve of $1.4 and $1.7, respectively	$ 154.9	$ 172.9
Accrued unbilled revenues	54.6	62.6
Advances to parent	0.0	319.5
Fuel inventories	48.3	57.6
Materials and supplies, at average cost	112.8	126.7
Fuel clause under recoveries	24.5	2.0
Other	29.4	25.5
Total current assets	424.5	766.8
OTHER PROPERTY AND INVESTMENTS	4.9	5.0
PROPERTY, PLANT AND EQUIPMENT
In service	12,320.6	11,988.7
Construction work in progress	156.6	376.4
Total property, plant and equipment	12,477.2	12,365.1
Less accumulated depreciation	3,713.9	3,727.4
Net property, plant and equipment	8,763.3	8,637.7
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	276.5	285.8
Other	9.3	9.2
Total deferred charges and other assets	285.8	295.0
TOTAL ASSETS	9,478.5	9,704.5
CURRENT LIABILITIES
Accounts payable	180.0	215.0
Advances from parent	65.6	0.0
Customer deposits	83.7	83.6
Accrued taxes	26.1	44.0
Accrued interest	35.2	44.5
Accrued compensation	17.2	33.8
Long-term debt due within one year	0.0	250.0
Fuel clause over recoveries	0.0	0.3
Other	81.8	86.8
Total current liabilities	489.6	758.0
LONG-TERM DEBT	2,897.3	2,896.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	136.6	137.9
Deferred income taxes	900.8	892.7
Accumulated Deferred Investment Tax Credit	7.2	7.2
Regulatory liabilities	1,254.3	1,270.7
Other	168.8	137.8
Total deferred credits and other liabilities	2,467.7	2,446.3
Total liabilities	5,854.6	6,101.2
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDER'S EQUITY
Common stockholder's equity	1,032.8	1,031.8
Retained earnings	2,591.1	2,571.5
Total stockholder's equity	3,623.9	3,603.3
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ 9,478.5	$ 9,704.5