BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment:
Utility Plant, at original cost	$ 1,515,274	$ 1,384,797
Accumulated Depreciation	(357,245)	(337,993)
Property, Plant and Equipment - Net	1,158,029	1,046,804
Investments:
Available-for-Sale Securities	6,655	6,700
Restricted Investments	2,198	4,301
Total Investments	8,853	11,001
Current Assets:
Cash and Cash Equivalents	3,504	2,030
Accounts Receivable	24,800	37,619
Accounts Receivable - Related Parties	1,122	4,885
Unbilled Revenues	31,978	58,197
Provision for Uncollectibles	(3,060)	(4,577)
Natural Gas in Storage, average cost	27,251	20,109
Materials and Supplies, average cost	1,654	2,511
Deferred Income Taxes - Net	6,301	0
Prepaid Taxes	17,296	15,907
Derivatives - Energy Related Assets	2,263	5,864
Other Prepayments and Current Assets	3,773	2,353
Total Current Assets	116,882	144,898
Regulatory and Other Noncurrent Assets:
Regulatory Assets	315,221	248,413
Unamortized Debt Issuance Costs	6,198	6,718
Long-Term Receivables	8,345	7,285
Derivatives - Energy Related Assets	0	1,005
Other	2,195	2,511
Total Regulatory and Other Noncurrent Assets	331,959	265,932
Total Assets	1,615,723	1,468,635
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	200,841
Accumulated Other Comprehensive Loss	(12,129)	(9,120)
Retained Earnings	269,541	229,316
Total Common Equity	464,186	426,885
Long-Term Debt	362,813	340,000
Total Capitalization	826,999	766,885
Current Liabilities:
Notes Payable	126,600	58,900
Current Portion of Long-Term Debt	2,187	50,000
Accounts Payable - Commodity	17,867	26,915
Accounts Payable - Other	28,280	19,628
Accounts Payable - Related Parties	6,571	10,830
Derivatives - Energy Related Liabilities	11,385	11,406
Deferred Income Taxes - Net	0	4,982
Customer Deposits and Credit Balances	24,387	10,525
Environmental Remediation Costs	23,009	25,662
Taxes Accrued	1,774	1,915
Pension Benefits	1,240	1,182
Interest Accrued	6,240	7,011
Other Current Liabilities	6,016	5,156
Total Current Liabilities	255,556	234,112
Regulatory and Other Noncurrent Liabilities:
Regulatory Liabilities	48,311	69,248
Deferred Income Taxes - Net	285,159	239,648
Environmental Remediation Costs	66,975	61,731
Asset Retirement Obligations	29,388	27,925
Pension and Other Postretirement Benefits	90,055	59,754
Investment Tax Credits	905	1,207
Derivatives - Energy Related Liabilities	1,122	430
Derivatives - Other	8,146	3,150
Other	3,107	4,545
Total Regulatory and Other Noncurrent Liabilities	533,168	467,638
Total Capitalization and Liabilities	$ 1,615,723	$ 1,468,635