CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Current Assets:
Cash and Cash Equivalents	$ 8.9	$ 8.4	$ 10.1
Accounts Receivable, net	45.4	60.7	41.6
Accrued Revenue	28.8	48.5	31.4
Exchange Gas Receivable	10.6	15.0	14.5
Deferred Income Taxes	12.5		2.1
Gas Inventory	0.6	1.1	1.0
Materials and Supplies	6.8	6.3	6.6
Prepayments and Other	5.4	5.2	5.1
Total Current Assets	119.0	145.2	112.4
Utility Plant:
Gas	540.2	522.9	488.9
Electric	398.4	390.6	382.9
Common	35.4	32.7	32.4
Construction Work in Progress	77.6	42.6	54.2
Total Utility Plant	1,051.6	988.8	958.4
Less: Accumulated Depreciation	269.2	255.1	252.4
Net Utility Plant	782.4	733.7	706.0
Other Noncurrent Assets:
Regulatory Assets	102.8	107.6	85.3
Other Assets	13.8	13.7	12.8
Total Other Noncurrent Assets	116.6	121.3	98.1
TOTAL ASSETS	1,018.0	1,000.2	916.5
Current Liabilities:
Accounts Payable	21.2	44.2	19.3
Short-Term Debt	4.1	29.3	1.4
Long-Term Debt, Current Portion	4.1	4.0	2.5
Energy Supply Obligations	15.8	22.1	18.1
Deferred Income Taxes		3.1
Environmental Obligations	5.0	3.5	5.3
Interest Payable	6.3	3.5	5.4
Regulatory Liabilities	28.1	8.7	13.0
Taxes Payable	4.9	0.1	0.1
Other Current Liabilities	11.7	10.9	10.9
Total Current Liabilities	101.2	129.4	76.0
Noncurrent Liabilities:
Deferred Income Taxes	91.7	72.9	88.3
Cost of Removal Obligations	69.9	63.8	63.2
Retirement Benefit Obligations	122.0	118.6	81.8
Regulatory Liabilities	11.0	0.1
Capital Lease Obligations	12.1	7.5	6.5
Environmental Obligations	0.5	2.0	2.0
Other Noncurrent Liabilities	3.5	3.7	4.1
Total Noncurrent Liabilities	310.7	268.6	245.9
Capitalization:
Long-Term Debt, Less Current Portion	328.4	328.9	326.7
Stockholders' Equity:
Common Equity (Authorized: 25,000,000 and Outstanding: 13,982,941, 13,906,964 and 13,916,026 Shares)	236.8	234.7	233.9
Retained Earnings	40.7	38.4	33.8
Total Common Stock Equity	277.5	273.1	267.7
Preferred Stock	0.2	0.2	0.2
Total Stockholders' Equity	277.7	273.3	267.9
Total Capitalization	$ 606.1	$ 602.2	$ 594.6
Commitments and Contingencies (Notes 6 & 7)
TOTAL LIABILITIES AND CAPITALIZATION	$ 1,018.0	$ 1,000.2	$ 916.5

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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.