Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
UTILITY PLANT:
Utility plant in service	$ 4,983,921	$ 4,992,594
Less accumulated depreciation	2,049,303	2,320,955
Utility plant in service - net	2,934,618	2,671,639
Construction work in progress	821,456	766,406
Spare parts inventory	15,214	12,336
Property held for future use	1,002	1,002
Utility plant - net	3,772,290	3,451,383
OTHER ASSETS:
Nonutility property - at cost, less accumulated depreciation	514	517
Other long-term assets	5,619	5,664
Other assets - net	6,133	6,181
CURRENT ASSETS:
Cash and cash equivalents	44,470	21,521
Accounts receivable and unbilled revenue (less allowance for doubtful accounts of $3,262 and $2,498, respectively)	145,449	124,167
Fuel inventories - at average cost	49,887	66,834
Materials and supplies - at average cost	57,437	57,997
Regulatory assets	22,585	8,002
Prepayments and other current assets	42,842	26,063
Total current assets	362,670	304,584
DEFERRED DEBITS:
Regulatory assets	445,641	448,200
Miscellaneous	4,781	6,821
Total deferred debits	450,422	455,021
TOTAL	4,591,515	4,217,169
Common shareholders’ equity:
Paid in capital	596,714	383,448
Accumulated deficit	(26,923)	(30,515)
Total common shareholders’ equity	569,791	352,933
Cumulative preferred stock of subsidiary	59,784	59,784
Long-term debt (Note 5)	2,498,200	2,153,276
Total capitalization	3,127,775	2,565,993
CURRENT LIABILITIES:
Short-term debt (Note 5)	0	166,655
Accounts payable	117,374	155,428
Accrued expenses	19,563	19,482
Accrued real estate and personal property taxes	17,585	17,712
Regulatory liabilities	21,294	28,169
Accrued interest	33,356	31,690
Customer deposits	33,168	30,719
Other current liabilities	13,807	12,623
Total current liabilities	256,147	462,478
DEFERRED CREDITS AND OTHER LONG-TERM LIABILITIES:
Regulatory liabilities	653,998	639,516
Deferred income taxes - net	423,102	397,394
Non-current income tax liability	7,254	7,147
Unamortized investment tax credit	3,295	3,910
Accrued pension and other postretirement benefits	59,715	80,734
Asset retirement obligations	58,513	58,986
Miscellaneous	1,716	1,011
Total deferred credits and other long-term liabilities	1,207,593	1,188,698
COMMITMENTS AND CONTINGENCIES
TOTAL	$ 4,591,515	$ 4,217,169