Unaudited Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 65,278,057	$ 11,073,502	$ 121,221,205	$ 22,611,774
Cost and expenses
Cost of sales (exclusive of items shown separately below)	47,860,149	11,774,961	92,190,994	22,620,873
Other operating costs and expenses		96,690		113,990
Asset retirement obligation accretion	123,467	101,276	246,935	202,553
Depreciation and amortization	2,955,382	310,889	5,392,882	467,016
Selling, general and administrative	3,692,254	2,499,280	7,123,398	6,100,643
Total cost and expenses	54,631,252	14,783,096	104,954,209	29,505,075
Operating income (loss)	10,646,805	(3,709,594)	16,266,996	(6,893,301)
Interest and dividend income	1,998	100,343	3,234	216,772
Other income	512,693	121,492	1,002,008	118,235
Interest expense	(315,761)	(212)	(416,919)	(22,820)
Income (loss) before taxes	10,845,735	(3,487,971)	16,855,319	(6,581,114)
Income tax expense	642,299	0	1,385,606	0
Net income (loss)	$ 10,203,436	$ (3,487,971)	$ 15,469,713	$ (6,581,114)
Basic and diluted earnings (loss) per share
Basic (in dollars per share)	$ 0.25	$ (0.09)	$ 0.39	$ (0.18)
Diluted (in dollars per share)	$ 0.25	$ (0.09)	$ 0.38	$ (0.18)
Weighted average common shares outstanding
Basic (in shares)	40,082,467	39,072,394	39,994,386	35,592,366
Diluted (in shares)	40,339,749	39,072,394	40,241,917	35,592,366