CONDENSED BALANCE SHEETS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment:
Utility Plant, at original cost	$ 1,590,771	$ 1,515,274
Accumulated Depreciation	(367,710)	(357,245)
Property, Plant and Equipment - Net	1,223,061	1,158,029
Investments:
Available-for-Sale Securities	7,000	6,655
Restricted Investments	1,740	2,198
Total Investments	8,740	8,853
Current Assets:
Cash and Cash Equivalents	367	3,504
Accounts Receivable	46,355	24,800
Accounts Receivable - Related Parties	821	1,122
Unbilled Revenues	8,157	31,978
Provision for Uncollectibles	(3,863)	(3,060)
Natural Gas in Storage, average cost	12,065	27,251
Materials and Supplies, average cost	1,681	1,654
Deferred Income Taxes - Net	0	6,301
Prepaid Taxes	22,238	17,296
Derivatives - Energy Related Assets	850	2,263
Other Prepayments and Current Assets	3,990	3,773
Total Current Assets	92,661	116,882
Regulatory and Other Noncurrent Assets:
Regulatory Assets	316,256	315,221
Unamortized Debt Issuance Costs	7,000	6,198
Long-Term Receivables	8,709	8,345
Derivatives - Energy Related Assets	239	0
Other	2,340	2,195
Total Regulatory and Other Noncurrent Assets	334,544	331,959
Total Assets	1,659,006	1,615,723
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	200,926	200,926
Accumulated Other Comprehensive Loss	(11,900)	(12,129)
Retained Earnings	307,816	269,541
Total Common Equity	502,690	464,186
Long-Term Debt	365,000	362,813
Total Capitalization	867,690	826,999
Current Liabilities:
Notes Payable	153,500	126,600
Current Portion of Long-Term Debt	0	2,187
Accounts Payable - Commodity	11,218	17,867
Accounts Payable - Other	22,338	28,280
Accounts Payable - Related Parties	5,549	6,571
Derivatives - Energy Related Liabilities	7,446	11,385
Deferred Income Taxes - Net	2,249	0
Customer Deposits and Credit Balances	20,012	24,387
Environmental Remediation Costs	20,984	23,009
Taxes Accrued	1,416	1,774
Pension Benefits	1,240	1,240
Interest Accrued	5,794	6,240
Other Current Liabilities	4,108	6,016
Total Current Liabilities	255,854	255,556
Regulatory and Other Noncurrent Liabilities:
Regulatory Liabilities	47,946	48,311
Deferred Income Taxes - Net	302,486	285,159
Environmental Remediation Costs	67,869	66,975
Asset Retirement Obligations	29,888	29,388
Pension and Other Postretirement Benefits	74,354	90,055
Investment Tax Credits	761	905
Derivatives - Energy Related Liabilities	338	1,122
Derivatives - Other	8,680	8,146
Other	3,140	3,107
Total Regulatory and Other Noncurrent Liabilities	535,462	533,168
Commitments and Contingencies (Note 9)
Total Capitalization and Liabilities	$ 1,659,006	$ 1,615,723