Consolidated Condensed Statements of Operations - USD ($)		3 Months Ended		9 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Revenues
Total revenues		$ 9,501,028	$ 10,151,155	$ 32,856,225	$ 29,479,342
Operating costs
Depreciation, depletion and amortization		1,558,130	1,383,148	4,710,223	4,580,161
General and administrative expenses	[1]	1,196,935	1,842,548	3,760,767	5,078,508
Total operating costs		6,548,073	6,487,888	19,174,596	18,450,364
Income from operations		2,952,955	3,663,267	13,681,629	11,028,978
Other
Enduro transaction breakup fee		0	0	1,100,000	0
Interest and other income		65,831	21,345	172,260	52,036
Interest expense		(28,789)	(30,525)	(87,479)	(71,436)
Income before income taxes		2,989,997	3,654,087	14,866,410	11,009,578
Income tax provision (benefit)		591,122	585,733	2,767,169	(4,076,156)
Net income available to common stockholders		$ 2,398,875	$ 3,068,354	$ 12,099,241	$ 15,085,734
Earnings per common share
Basic (in dollars per share)		$ 0.07	$ 0.09	$ 0.36	$ 0.46
Diluted (in dollars per share)		$ 0.07	$ 0.09	$ 0.36	$ 0.45
Weighted average number of common shares
Basic (in shares)		33,186,665	33,171,514	33,151,786	33,123,185
Diluted (in shares)		33,196,197	33,191,312	33,163,661	33,155,870
Crude oil
Revenues
Total revenues		$ 9,032,032	$ 9,639,238	$ 30,945,359	$ 27,654,128
Natural gas liquids
Revenues
Total revenues		468,525	511,917	1,910,395	1,825,214
Natural gas
Revenues
Total revenues		471	0	471	0
Production costs
Operating costs
Production costs		$ 3,793,008	$ 3,262,192	$ 10,703,606	$ 8,791,695

[1] General and administrative expenses for the three months ended March 31, 2019 and 2018 included non-cash stock-based compensation expenses of $208,665 and $352,420, respectively. For the nine months ended March 31, 2019 and 2018, non-cash stock-based compensation expenses were $678,149 and $1,324,230, respectively.