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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense
The following tables provide: (a) the components of income tax expense in 2020, 2019, and 2018; (b) the reconciliation between the statutory federal income tax rate and the effective income tax rate for 2020, 2019, and 2018 from continuing operations; and (c) the components of accumulated deferred income tax assets and liabilities at December 31, 2020 and 2019.
For the Year Ended December 31,
202020192018
(in thousands)   
Current Income Tax Expense
Federal$(2,777)$(2,252)$(361)
State2,162 (491)617 
Other(47)(47)(47)
Total current income tax expense (benefit)(662)(2,790)209 
Deferred Income Tax Expense (1)
Property, plant and equipment23,224 25,907 19,178 
Deferred gas costs(714)79 (1,435)
Pensions and other employee benefits(75)(454)454 
FPU merger-related premium cost and deferred gain156 (278)(528)
Net operating loss carryforwards5,107 (3,772)(250)
Other(3,498)2,422 3,495 
Total deferred income tax expense24,200 23,904 20,914 
Income Tax Expense from Continuing Operations23,538 21,114 21,123 
Income Tax Expense (benefit) from Discontinued Operations153 1,416 (129)
Total Income Tax$23,691 $22,530 $20,994 
(1) Includes $4.9 million, $4.7 million, and $3.5 million of deferred state income taxes for the years 2020, 2019 and 2018, respectively.
Summary of Reconciliation of Statutory Federal Tax and Effective Income Tax Rates
For the Year Ended December 31,
202020192018
(in thousands)   
Reconciliation of Effective Income Tax Rates for Continuing Operations
Federal income tax expense (1)
$19,778 $17,264 $16,400 
State income taxes, net of federal benefit5,051 5,093 4,071 
ESOP dividend deduction(218)(173)(158)
CARES Act Tax Benefit(1,841)— — 
Other768 (1,070)810 
Total Income Tax Expense for Continuing Operations$23,538 $21,114 $21,123 
Effective Income Tax Rate for Continuing Operations24.99 %25.65 %27.13 %
(1) Federal income taxes were calculated at 21 percent for 2020, 2019, and 2018.
Schedule of Accumulated Deferred Income Tax Assets and Liabilities
As of December 31,
20202019
(in thousands)  
Deferred Income Taxes
Deferred income tax liabilities:
Property, plant and equipment$199,287 $173,466 
Acquisition adjustment6,618 6,969 
Loss on reacquired debt201 220 
Deferred gas costs509 1,223 
Natural gas conversion costs5,379 4,956 
Storm reserve liability7,073 10,316 
Other5,587 1,456 
Total deferred income tax liabilities224,654 198,606 
Deferred income tax assets:
Pension and other employee benefits4,636 3,818 
Environmental costs1,064 1,486 
Net operating loss carryforwards1,587 5,523 
Self-insurance 146 
Storm reserve liability409 96 
Accrued Expenses6,153 2,064 
Other5,417 4,817 
Total deferred income tax assets19,266 17,950 
Deferred Income Taxes Per Consolidated Balance Sheets$205,388 $180,656