Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 2,118	$ 1,358
Accounts receivable	25,850	36,996
Fair value of commodity derivatives	4,821	12,833
Other current assets	2,184	2,121
Total Current Assets	34,973	53,308
Property and Equipment:
Property and Equipment, Full-Cost Method, including $28,090 and $41,201 of unproved property costs not being amortized	1,343,373	1,247,717
Less - Accumulated depreciation, depletion, and amortization	(801,279)	(380,728)
Property and Equipment, Net	542,094	866,989
Operating Lease, Right-of-Use Asset	4,366	9,374
Fair value of long-term commodity derivatives	281	3,854
Deferred Tax Assets, Net	0	22,669
Other Long-Term Assets	1,421	3,622
Total Assets	583,135	959,816
Current Liabilities:
Accounts payable and accrued liabilities	26,991	39,343
Fair value of commodity derivatives	8,171	6,644
Accrued capital costs	7,324	17,889
Accrued interest	983	1,397
Current lease liability	3,473	6,707
Undistributed oil and gas revenues	11,098	9,166
Total Current Liabilities	58,040	81,146
Long-Term Debt	424,905	472,900
Non-current lease liability	951	2,813
Deferred tax liabilities, net	303	1,582
Asset Retirement Obligation	4,533	4,055
Fair value of long-term commodity derivatives	2,946	1,613
Other long-term liabilities	424	0
Stockholders' Equity:
Preferred Stock, Value, Outstanding	0	0
Common Stock, Value, Issued	121	119
Additional paid-in capital	297,712	292,916
Treasury Stock, Value	(2,372)	(2,282)
Retained earnings (Accumulated deficit)	(204,428)	104,954
Total Stockholders' Equity (Deficit)	91,033	395,707
Total Liabilities and Stockholders' Equity	$ 583,135	$ 959,816