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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Components of Income Tax Expense (Benefit) Table
The components of income tax expense (benefit) are as follows:
 Year Ended December 31,
thousands202120202019
Current income tax expense (benefit)
Federal income tax expense (benefit)$— $— $5,550 
State income tax expense (benefit)(37)2,702 313 
Total current income tax expense (benefit)(37)2,702 5,863 
Deferred income tax expense (benefit)
Federal income tax expense (benefit)— — 2,782 
State income tax expense (benefit)(9,770)3,296 4,827 
Total deferred income tax expense (benefit)(9,770)3,296 7,609 
Total income tax expense (benefit)$(9,807)$5,998 $13,472 
Tax Rate Reconciliation Table
Total income taxes differed from the amounts computed by applying the statutory income tax rate to income (loss) before income taxes. The sources of these differences are as follows:
 Year Ended December 31,
thousands except percentages202120202019
Income (loss) before income taxes$934,192$522,850$821,172
Statutory tax rate— %— %— %
Tax computed at statutory rate$— $— $— 
Adjustments resulting from:
Federal taxes on pre-acquisition income attributable to assets acquired from Anadarko——8,332
Texas margin tax expense (benefit) (1)
(9,807)5,9985,140
Income tax expense (benefit)$(9,807)$5,998$13,472
Effective tax rate(1)%1 %2 %
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(1)Includes a tax benefit of $12.5 million for the year ended December 31, 2021, related to a reduced Texas margin tax rate resulting from Occidental’s settlement of state audit matters.
Income Tax Temporary Differences Table
The tax effects of temporary differences that give rise to significant portions of deferred tax assets (liabilities) are as follows:
 December 31,
thousands20212020
Depreciable property$(12,395)$(22,061)
Other intangible assets(486)(812)
Other456 678 
Net long-term deferred income tax liabilities$(12,425)$(22,195)