Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)

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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Deferred tax assets:      
Net operating loss carryforward $ 269,851 $ 164,363 $ 120,626
Oil and gas property basis difference 289,850 3,595 151,260
Investment in pass through entities 58,951 8,620 12,343
Stock-based compensation expense 1,440 616 813
Business energy investment tax credit 370 369 369
Charitable contributions carryover 297 269 255
Change in fair value of derivative instruments 11,219 2,761 0
Foreign tax credit carryforwards 943 2,009 2,074
Accrued liabilities 669 834 285
ARO liability 12,744 16,923 15,897
Non-oil and gas property basis difference 0 104 171
Lease liability 12,128 0 0
State net operating loss carryover 13,258 11,526 6,954
Interest expense carryforward 23,818 0 0
Total deferred tax assets 695,538 211,989 311,047
Valuation allowance for deferred tax assets (647,575) (211,987) (298,830)
Deferred tax assets, net of valuation allowance 47,963 2 12,217
Deferred tax liabilities:      
Non-oil and gas property basis difference 1,859 0 0
Change in fair value of derivative instruments 26,410 2 11,009
Right of use asset 12,128 0 0
Other 3 0 0
Total deferred tax liabilities 40,400 2 11,009
Net deferred tax asset $ 7,563 $ 0 $ 1,208