CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Current Assets:
Cash and Cash Equivalents	$ 8.5	$ 8.9	$ 7.8
Accounts Receivable, net	56.2	67.4	41.1
Accrued Revenue	29.7	53.3	36.6
Exchange Gas Receivable	5.5	5.8	5.9
Refundable Taxes	1.2	1.8	0.9
Gas Inventory	0.6	0.6	0.5
Materials and Supplies	7.5	6.9	7.1
Prepayments and Other	8.9	6.6	8.1
Total Current Assets	118.1	151.3	108.0
Utility Plant:
Gas	709.8	699.6	643.2
Electric	479.7	476.7	442.0
Common	69.5	67.4	35.4
Construction Work in Progress	51.0	35.5	92.7
Total Utility Plant	1,310.0	1,279.2	1,213.3
Less: Accumulated Depreciation	320.2	307.7	300.6
Net Utility Plant	989.8	971.5	912.7
Other Noncurrent Assets:
Regulatory Assets	110.7	109.6	102.9
Other Assets	16.0	9.5	14.1
Total Other Noncurrent Assets	126.7	119.1	117.0
TOTAL ASSETS	1,234.6	1,241.9	1,137.7
Current Liabilities:
Accounts Payable	24.7	41.5	23.0
Short-Term Debt	37.4	38.3	79.2
Long-Term Debt, Current Portion	29.7	29.8	29.9
Regulatory Liabilities	14.2	9.2	16.6
Energy Supply Obligations	9.4	9.7	10.3
Environmental Obligations	0.6	0.5	0.5
Capital Lease Obligations	3.1	3.1	3.0
Interest Payable	4.1	4.4	3.9
Other Current Liabilities	12.2	14.5	11.5
Total Current Liabilities	135.4	151.0	177.9
Noncurrent Liabilities:
Retirement Benefit Obligations	154.7	150.1	153.3
Deferred Income Taxes, net	88.1	82.9	106.8
Cost of Removal Obligations	87.8	84.3	82.3
Regulatory Liabilities	47.1	48.9
Capital Lease Obligations	4.1	5.7	6.9
Environmental Obligations	1.5	1.6	1.7
Other Noncurrent Liabilities	5.6	4.3	4.9
Total Noncurrent Liabilities	388.9	377.8	355.9
Capitalization:
Long-Term Debt, Less Current Portion	363.1	376.3	303.5
Stockholders' Equity:
Common Equity (Authorized: 25,000,000 and Outstanding: 14,866,588, 14,114,551 and 14,815,585 Shares)	277.9	275.8	242.7
Retained Earnings	69.1	60.8	57.5
Total Common Stock Equity	347.0	336.6	300.2
Preferred Stock	0.2	0.2	0.2
Total Stockholders' Equity	347.2	336.8	300.4
Total Capitalization	710.3	713.1	603.9
Commitments and Contingencies (Notes 6 & 7)
TOTAL LIABILITIES AND CAPITALIZATION	$ 1,234.6	$ 1,241.9	$ 1,137.7

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).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682