Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
REVENUES
Total revenues	$ 89,671	$ 21,663	$ 165,243	$ 66,801
OPERATING COSTS AND EXPENSES
Lease operating expense	11,747	5,588	22,596	14,927
Production and ad valorem taxes	5,176	1,479	10,203	4,502
Rig termination expense	0	426	0	426
Depreciation, depletion and amortization	26,027	22,902	50,434	47,558
Impairment expense	0	62	0	60,433
General and administrative expense	9,170	6,687	17,550	13,819
Transaction costs	507	(463)	2,613	381
Accretion of asset retirement obligations	303	46	593	90
Exploration expense	30	(3)	30	298
Total operating costs and expenses	52,960	36,724	104,019	142,434
Gain on sale of oil and gas properties	348	(6)	348	198
Income (loss) from operations	37,059	(15,067)	61,572	(75,435)
OTHER INCOME (EXPENSE)
Interest expense, net	(2,401)	(1,285)	(4,618)	(3,021)
(Loss) gain on derivative contracts, net	(51,175)	(20,679)	(84,438)	79,105
Other income, net	200	12	303	138
Total other (expense) income	(53,376)	(21,952)	(88,753)	76,222
(Loss) income before income taxes	(16,317)	(37,019)	(27,181)	787
Income tax benefit	486	1,110	794	18
Net (loss) income	(15,831)	(35,909)	(26,387)	805
Less: Net (loss) income attributable to noncontrolling interest	(6,960)	(19,570)	(11,683)	436
Net (loss) income attributable to Earthstone Energy, Inc.	$ (8,871)	$ (16,339)	$ (14,704)	$ 369
Net (loss) income per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ (0.20)	$ (0.55)	$ (0.34)	$ 0.01
Diluted (in dollars per share)	$ (0.20)	$ (0.55)	$ (0.34)	$ 0.01
Weighted average common shares outstanding:
Basic (in shares)	44,127,718	29,858,162	43,457,043	29,677,795
Diluted (in shares)	44,127,718	29,858,162	43,457,043	29,677,795
Oil
REVENUES
Total revenues	$ 70,918	$ 18,847	$ 131,737	$ 59,859
Natural gas
REVENUES
Total revenues	6,690	1,127	12,542	2,213
Natural gas liquids
REVENUES
Total revenues	$ 12,063	$ 1,689	$ 20,964	$ 4,729