BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Current assets    
Cash and cash equivalents $ 206,848 $ 834
Accounts receivable, net 91,299 71,166
Accounts receivable from affiliates 3,198 1,079
Accrued unbilled revenues 122,088 103,781
Inventories 39,037 37,546
Regulatory assets 28,417 31,541
Derivative instruments 4,478 12,952
Deferred income taxes 31,555 35,686
Prepaid taxes 22,021 35,666
Prepayments and other 9,006 20,520
Total current assets 557,947 350,771
Property, plant and equipment, net 4,579,219 4,348,823
Other assets    
Regulatory assets 309,389 301,814
Derivative instruments 22,902 25,272
Other 8,862 3,449
Total other assets 341,153 330,535
Total assets 5,478,319 5,030,129
Current liabilities    
Current portion of long-term debt 200,000 200,000
Short-term debt 0 15,000
Accounts payable 159,272 146,794
Accounts payable to affiliates 17,617 29,135
Regulatory liabilities 66,043 98,305
Taxes accrued 42,418 33,374
Accrued interest 31,129 17,781
Dividends payable 27,498 12,538
Derivative instruments 3,565 3,565
Other 29,807 35,654
Total current liabilities 577,349 592,146
Deferred credits and other liabilities    
Deferred income taxes 996,111 896,430
Regulatory liabilities 233,777 229,584
Asset retirement obligations 28,314 27,233
Derivative instruments 24,404 27,078
Pension and employee benefit obligations 77,649 93,346
Other 21,366 17,841
Total deferred credits and other liabilities 1,381,621 1,291,512
Commitments and contingencies
Capitalization    
Long-term debt 1,635,687 1,338,522
Common stock — 200 shares authorized of $1.00 par value; 100 shares outstanding at Sept. 30, 2016 and Dec. 31, 2015, respectively 0 0
Additional paid in capital 1,396,223 1,371,223
Retained earnings 488,556 438,007
Accumulated other comprehensive loss (1,117) (1,281)
Total common stockholder’s equity 1,883,662 1,807,949
Total liabilities and equity $ 5,478,319 $ 5,030,129