CONDENSED CONSOLIDATED BALANCE SHEET (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash Equivalents	$ 4,540	$ 6,234
Restricted cash	14,021	12,862
Accounts receivable, net	106,517	143,304
Inventories	44,294	50,701
Regulatory assets	43,078	59,993
Deferred income taxes	21,577	24,052
Other	10,049	5,908
Total current assets	244,076	303,054
Property, plant, and equipment, net	2,141,348	2,117,977
Goodwill	355,128	355,128
Regulatory assets	225,953	222,341
Other noncurrent assets	40,485	39,169
Total assets	3,006,990	3,037,669
Current Liabilities:
Current maturities of capital leases	1,323	1,276
Current maturities of long-term debt	6,750	6,578
Short-term borrowings	89,988	0
Accounts payable	53,550	75,042
Accrued expenses	202,128	203,900
Regulatory liabilities	19,284	17,173
Total current liabilities	373,023	303,969
Long-term capital leases	33,627	34,288
Long-term debt	905,018	1,061,780
Deferred income taxes	255,791	232,709
Noncurrent regulatory liabilities	260,110	251,133
Other noncurrent liabilities	340,240	333,443
Total liabilities	2,167,809	2,217,322
Commitments and Contingencies (Note 13)
Shareholders' Equity:
Common stock, par value $0.01; authorized 200,000,000 shares; issued and outstanding 39,825,083 and 36,260,406, respectively; Preferred stock, par value $0.01; authorized 50,000,000 shares; none issued	398	398
Treasury stock at cost	(90,302)	(90,427)
Paid-in capital	815,519	813,878
Retained earnings	105,577	87,984
Accumulated other comprehensive income	7,989	8,514
Total shareholders' equity	839,181	820,347
Total liabilities and shareholders' equity	$ 3,006,990	$ 3,037,669