CONDENSED BALANCE SHEETS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Property, Plant and Equipment:
Utility Plant, at original cost	$ 1,776,502		$ 1,658,790
Accumulated Depreciation	(388,511)		(373,199)
Property, Plant and Equipment - Net	1,387,991		1,285,591
Investments:
Available-for-Sale Securities	8,237		7,520
Restricted Investments	2,077		1,268
Total Investments	10,314		8,788
Current Assets:
Cash and Cash Equivalents	1,694		2,678
Accounts Receivable	50,137		49,071
Accounts Receivable - Related Parties	1,316		961
Unbilled Revenues	7,464		35,351
Provision for Uncollectibles	(5,618)		(3,985)
Natural Gas in Storage, average cost	27,753		13,896
Materials and Supplies, average cost	1,682		1,560
Deferred Income Taxes - Net	9,759		0
Prepaid Taxes	14,108		17,046
Derivatives - Energy Related Assets	239		464
Other Prepayments and Current Assets	4,644		3,343
Total Current Assets	113,178		120,385
Regulatory and Other Noncurrent Assets:
Regulatory Assets	326,727		352,656
Unamortized Debt Issuance Costs	6,282		6,663
Long-Term Receivables	9,458		9,336
Derivatives - Energy Related Assets	67		302
Other	3,170		2,738
Total Regulatory and Other Noncurrent Assets	345,704		371,695
Total Assets	1,857,187		1,786,459
Common Equity:
Common Stock, Par Value $2.50 per share: Authorized - 4,000,000 shares Outstanding - 2,339,139 shares	5,848		5,848
Other Paid-In Capital and Premium on Common Stock	226,050		201,050
Accumulated Other Comprehensive Loss	(13,340)	[1]	(13,285)	[1]
Retained Earnings	368,065		327,782
Total Common Equity	586,623		521,395
Long-Term Debt	404,000		425,000
Total Capitalization	990,623		946,395
Current Liabilities:
Notes Payable	110,000		102,100
Current Portion of Long-Term Debt	21,000		25,000
Accounts Payable - Commodity	11,682		14,926
Accounts Payable - Other	31,279		25,498
Accounts Payable - Related Parties	5,506		5,872
Derivatives - Energy Related Liabilities	1,606		2,615
Deferred Income Taxes - Net	0		10,432
Customer Deposits and Credit Balances	20,482		17,450
Environmental Remediation Costs	25,662		19,203
Taxes Accrued	1,470		1,674
Pension Benefits	1,236		1,236
Interest Accrued	4,248		6,277
Other Current Liabilities	3,331		6,492
Total Current Liabilities	237,502		238,775
Regulatory and Other Noncurrent Liabilities:
Regulatory Liabilities	52,219		56,517
Deferred Income Taxes - Net	352,845		310,357
Environmental Remediation Costs	82,574		88,207
Asset Retirement Obligations	39,645		38,892
Pension and Other Postretirement Benefits	86,431		89,193
Investment Tax Credits	424		618
Derivatives - Energy Related Liabilities	179		80
Derivatives - Other	4,569		7,761
Other	10,176		9,664
Total Regulatory and Other Noncurrent Liabilities	629,062		601,289
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	$ 1,857,187		$ 1,786,459

[1] Determined using a combined statutory tax rate of 41% .