CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS
Accounts receivable, less reserve of $1.5 and $1.4, respectively	$ 163.1	$ 173.1
Accrued unbilled revenues	90.9	53.5
Advances to parent	0.0	333.6
Fuel inventories	107.1	113.8
Materials and supplies, at average cost	74.3	78.8
Other	69.8	51.6
Total current assets	505.2	804.4
OTHER PROPERTY AND INVESTMENTS	5.2	5.6
PROPERTY, PLANT AND EQUIPMENT
In service	10,403.2	10,179.3
Construction work in progress	319.4	278.5
Total property, plant and equipment	10,722.6	10,457.8
Less accumulated depreciation	3,270.5	3,161.7
Net property, plant and equipment	7,452.1	7,296.1
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	401.9	402.2
Other	15.8	17.2
Total deferred charges and other assets	417.7	419.4
TOTAL ASSETS	8,380.2	8,525.5
CURRENT LIABILITIES
Accounts payable - affiliates	7.5	2.2
Accounts payable - other	147.4	236.0
Advances from parent	26.5	0.0
Customer deposits	77.5	77.0
Accrued taxes	38.8	45.7
Accrued interest	40.2	42.8
Accrued compensation	25.2	23.8
Long-term debt due within one year	0.0	110.0
Fuel clause over recoveries	41.3	61.3
Other	38.7	43.6
Total current liabilities	443.1	642.4
LONG-TERM DEBT	2,530.0	2,529.3
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	177.1	179.9
Deferred income taxes	1,669.2	1,637.8
Regulatory liabilities	283.9	273.6
Other	101.3	106.8
Total deferred credits and other liabilities	2,231.5	2,198.1
Total liabilities	5,204.6	5,369.8
COMMITMENTS AND CONTINGENCIES (NOTE 10)
STOCKHOLDER'S EQUITY
Common stockholder's equity	1,023.3	1,021.8
Retained earnings	2,152.3	2,133.9
Total stockholder's equity	3,175.6	3,155.7
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ 8,380.2	$ 8,525.5