CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 0.0	$ 5.5
Accounts receivable, less reserve of $1.2 and $1.6, respectively	185.9	188.8
Accounts receivable - unconsolidated affiliates	2.4	5.6
Accrued unbilled revenues	86.3	55.5
Income taxes receivable	16.3	16.0
Fuel inventories	89.4	58.5
Materials and supplies, at average cost	77.7	78.9
Deferred income taxes	173.1	191.4
Fuel clause under recoveries	3.7	68.3
Other	47.2	37.3
Total current assets	682.0	705.8
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,309.2	1,318.2
Other	73.3	70.1
Total other property and investments	1,382.5	1,388.3
PROPERTY, PLANT AND EQUIPMENT
In service	10,126.4	9,983.0
Construction work in progress	168.8	115.9
Total property, plant and equipment	10,295.2	10,098.9
Less accumulated depreciation	3,209.4	3,119.0
Net property, plant and equipment	7,085.8	6,979.9
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	404.8	411.5
Other	38.5	42.3
Total deferred charges and other assets	443.3	453.8
TOTAL ASSETS	9,593.6	9,527.8
CURRENT LIABILITIES
Short-term debt	105.5	98.0
Accounts payable	145.8	179.1
Dividends payable	49.9	49.9
Customer deposits	75.8	73.7
Accrued taxes	41.6	39.7
Accrued interest	42.9	43.0
Accrued compensation	32.9	38.2
Long-term debt due within one year	110.0	0.0
Fuel clause over recoveries	1.6	0.0
Other	56.3	51.7
Total current liabilities	662.3	573.3
LONG-TERM DEBT	2,645.4	2,755.3
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	310.8	315.5
Deferred income taxes	2,298.2	2,268.3
Regulatory liabilities	279.6	263.0
Other	111.3	108.0
Total deferred credits and other liabilities	2,999.9	2,954.8
Total liabilities	$ 6,307.6	$ 6,283.4
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	$ 1,097.4	$ 1,087.6
Retained earnings	2,229.1	2,198.2
Accumulated other comprehensive loss, net of tax	(40.5)	(41.4)
Total stockholders' equity	3,286.0	3,244.4
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 9,593.6	$ 9,527.8

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.