Unaudited Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues	$ 62,165,738	$ 14,404,979	$ 183,386,943	$ 37,016,753
Cost and expenses
Cost of sales (exclusive of items shown separately below)	49,406,271	16,525,352	141,597,265	39,146,225
Other operating costs and expenses		111,668		225,658
Asset retirement obligation accretion	123,468	101,276	370,403	303,829
Depreciation and amortization	3,347,777	867,967	8,740,659	1,334,983
Selling, general and administrative	3,484,395	3,141,237	10,607,793	9,241,880
Total cost and expenses	56,361,911	20,747,500	161,316,120	50,252,575
Operating income (loss)	5,803,827	(6,342,521)	22,070,823	(13,235,822)
Interest and dividend income	23,155	75,130	26,389	291,901
Other income	1,036,418	31,869	2,038,426	150,104
Interest expense	(589,199)	(21)	(1,006,118)	(22,841)
Income (loss) before taxes	6,274,201	(6,235,543)	23,129,520	(12,816,658)
Income tax expense	62,873	0	1,448,479	0
Net income (loss)	$ 6,211,328	$ (6,235,543)	$ 21,681,041	$ (12,816,658)
Basic and diluted earnings (loss) per share
Basic (in dollars per share)	$ 0.15	$ (0.16)	$ 0.54	$ (0.35)
Diluted (in dollars per share)	$ 0.15	$ (0.16)	$ 0.54	$ (0.35)
Weighted average common shares outstanding
Basic (in shares)	40,082,467	39,509,311	40,024,069	36,912,362
Diluted (in shares)	40,329,309	39,509,311	40,271,159	36,912,362