Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax	$ 288,631	$ 257,286
Costs and Expenses:
General and administrative, net	24,851	22,570
Depreciation, depletion, and amortization	95,915	68,035
Accretion of asset retirement obligation	329	419
Lease operating cost	20,763	17,643
Results of Operations, Expense, Other	628	0
Results of Operations, Transportation Costs	26,968	23,848
Severance and other taxes	13,874	11,394
Total Operating Expenses	183,328	143,909
Operating Income (Loss)	105,303	113,377
Net gain (loss) on commodity derivatives	24,242	(9,777)
Interest expense, net	(36,561)	(27,666)
Other income (expense), net	90	(391)
Income (Loss) Before Income Taxes	93,074	75,543
Provision (Benefit) for Income Taxes	(21,582)	928
Net Income (Loss)	$ 114,656	$ 74,615
Per Share Amounts-
Earnings (Loss) Per Share, Basic	$ 9.76	$ 6.40
Earnings (Loss) Per Share, Diluted	$ 9.74	$ 6.34
Weighted Average Shares Outstanding - Basic	11,753	11,655
Weighted Average Shares Outstanding - Diluted	11,778	11,764