Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 11,405	$ 33,199
Restricted Cash and Cash Equivalents	400	400
Accounts Receivable, Net, Current	163,920	167,559
Inventory, Net	96,252	99,668
Regulatory assets	30,289	28,399
Income Taxes Receivable, Current	37,026	13,773
Other Assets, Current	21,905	15,573
Total current assets	361,197	358,571
UTILITY PLANT:
Property, Plant and Equipment, Gross	6,265,821	6,201,078
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	2,326,344	2,256,215
Utility plant in service - net	3,939,477	3,944,863
Construction in Progress, Gross	98,926	111,723
Total net property, plant and equipment	4,038,403	4,056,586
OTHER ASSETS:
Intangible Assets, Net (Excluding Goodwill)	67,116	40,848
Regulatory assets	377,588	395,077
Other assets - net	13,493	10,971
Assets, Noncurrent	458,197	446,896
TOTAL ASSETS	4,857,797	4,862,053
Debt, Current	10,000	0
CURRENT LIABILITIES:
Accounts payable	120,130	134,931
Accrued taxes	26,314	21,325
Interest Payable, Current	35,136	34,790
Customer deposits	33,695	32,700
Regulatory Liability, Current	50,239	51,024
Accrued Liabilities and Other Liabilities	19,509	27,787
Total current liabilities	295,023	302,557
NON-CURRENT LIABILITIES:
Long-term debt (Note 4)	2,650,300	2,649,064
Deferred income tax liabilities	267,993	253,085
Taxes Payable	4,658	4,658
Regulatory Liability, Noncurrent	857,084	870,255
Accrued pension and other postretirement benefits	22,050	19,329
Asset retirement obligations	126,308	129,451
Other non-current liabilities	23,270	604
Total non-current liabilities	3,951,663	3,926,446
Liabilities	4,246,686	4,229,003
Common shareholders' equity:
Additional Paid in Capital	597,917	597,824
Accumulated Other Comprehensive Income (Loss), Net of Tax	(17,188)	0
Accumulated deficit	(29,402)	(24,558)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	551,327	573,266
Cumulative preferred stock of subsidiary	59,784	59,784
Total common shareholders' equity	611,111	633,050
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 4,857,797	$ 4,862,053