CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
CURRENT ASSETS
Accounts receivable, less reserve of $1.3 and $1.7, respectively	$ 163.1	$ 172.9
Accrued unbilled revenues	86.2	62.6
Advances to parent	117.1	319.5
Fuel inventories	47.9	57.6
Materials and supplies, at average cost	86.9	126.7
Fuel clause under recoveries	30.7	2.0
Other	26.6	25.5
Total current assets	558.5	766.8
OTHER PROPERTY AND INVESTMENTS	4.9	5.0
PROPERTY, PLANT AND EQUIPMENT
In service	12,510.6	11,988.7
Construction work in progress	126.8	376.4
Total property, plant and equipment	12,637.4	12,365.1
Less: accumulated depreciation	3,766.0	3,727.4
Net property, plant and equipment	8,871.4	8,637.7
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	290.0	285.8
Other	9.0	9.2
Total deferred charges and other assets	299.0	295.0
TOTAL ASSETS	9,733.8	9,704.5
CURRENT LIABILITIES
Accounts payable	136.5	215.0
Customer deposits	83.4	83.6
Accrued taxes	40.6	44.0
Accrued interest	35.8	44.5
Accrued compensation	24.4	33.8
Long-term debt due within one year	0.0	250.0
Fuel clause over recoveries	0.1	0.3
Other	77.0	86.8
Total current liabilities	397.8	758.0
LONG-TERM DEBT	3,193.6	2,896.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	134.8	137.9
Deferred income taxes	902.1	892.7
Accumulated Deferred Investment Tax Credit	7.2	7.2
Regulatory liabilities	1,243.0	1,270.7
Other	155.9	137.8
Total deferred credits and other liabilities	2,443.0	2,446.3
Total liabilities	6,034.4	6,101.2
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDER'S EQUITY
Common stockholder's equity	1,033.8	1,031.8
Retained earnings	2,665.6	2,571.5
Total stockholder's equity	3,699.4	3,603.3
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ 9,733.8	$ 9,704.5