BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Current assets    
Cash and cash equivalents $ 46,391 $ 844
Accounts receivable, net 96,614 74,190
Accounts receivable from affiliates 3,737 949
Accrued unbilled revenues 133,100 119,418
Inventories 41,350 38,505
Regulatory assets 38,021 38,721
Derivative instruments 23,597 5,114
Prepaid taxes 3,233 21,779
Prepayments and other 7,040 7,855
Total current assets 393,083 307,375
Property, plant and equipment, net 4,947,114 4,695,819
Other assets    
Regulatory assets 343,685 346,683
Derivative instruments 19,743 22,113
Other 12,193 7,477
Total other assets 375,621 376,273
Total assets 5,715,818 5,379,467
Current liabilities    
Short-term debt 0 50,000
Accounts payable 183,437 176,157
Accounts payable to affiliates 11,935 14,414
Regulatory liabilities 70,355 41,577
Taxes accrued 56,386 39,742
Accrued interest 21,430 19,162
Dividends payable 26,166 30,870
Derivative instruments 3,565 3,565
Other 27,723 29,703
Total current liabilities 400,997 405,190
Deferred credits and other liabilities    
Deferred income taxes 1,090,921 989,137
Regulatory liabilities 222,956 233,454
Asset retirement obligations 29,808 28,663
Derivative instruments 20,840 23,513
Pension and employee benefit obligations 86,291 107,872
Other 8,307 24,084
Total deferred credits and other liabilities 1,459,123 1,406,723
Commitments and contingencies
Capitalization    
Long-term debt 1,829,965 1,635,858
Common stock — 200 shares authorized of $1.00 par value; 100 shares outstanding at Sept. 30, 2017 and Dec. 31, 2016, respectively 0 0
Additional paid in capital 1,489,882 1,446,223
Retained earnings 537,066 486,763
Accumulated other comprehensive loss (1,215) (1,290)
Total common stockholder’s equity 2,025,733 1,931,696
Total liabilities and equity $ 5,715,818 $ 5,379,467