Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
REVENUES
Revenues	$ 39,204,000	$ 46,076,000	$ 124,474,000	$ 124,121,000
OPERATING COSTS AND EXPENSES
Lease operating expense	7,259,000	4,843,000	22,531,000	14,509,000
Severance taxes	1,858,000	2,254,000	5,955,000	6,115,000
Impairment expense	0	833,000	0	833,000
Depreciation, depletion and amortization	14,079,000	12,842,000	42,281,000	33,362,000
General and administrative expense	6,230,000	4,944,000	20,528,000	18,809,000
Transaction costs	42,000	892,000	217,000	892,000
Accretion of asset retirement obligation	52,000	44,000	160,000	128,000
Total operating costs and expenses	29,520,000	26,652,000	91,672,000	74,648,000
(Loss) gain on sale of oil and gas properties	(120,000)	4,096,000	(446,000)	4,608,000
Income from operations	9,564,000	23,520,000	32,356,000	54,081,000
OTHER INCOME (EXPENSE)
Interest expense, net	(1,609,000)	(565,000)	(4,735,000)	(1,788,000)
Gain (loss) on derivative contracts, net	18,726,000	(17,481,000)	(19,672,000)	(33,606,000)
Litigation settlement	0	(4,775,000)	0	(4,775,000)
Other income (expense), net	21,000	37,000	(1,000)	434,000
Total other income (expense)	17,138,000	(22,784,000)	(24,408,000)	(39,735,000)
Income before income taxes	26,702,000	736,000	7,948,000	14,346,000
Income tax expense	(575,000)	(172,000)	(728,000)	(119,000)
Net income	26,127,000	564,000	7,220,000	14,227,000
Net loss attributable to noncontrolling interest	14,357,000	340,000	3,877,000	8,032,000
Net income attributable to Earthstone Energy, Inc.	$ 11,770,000	$ 224,000	$ 3,343,000	$ 6,195,000
Net income per common share attributable to Earthstone Energy, Inc.:
Basic (in dollars per share)	$ 0.41	$ 0.01	$ 0.12	$ 0.22
Diluted (in dollars per share)	$ 0.41	$ 0.01	$ 0.12	$ 0.22
Weighted average common shares outstanding:
Basic (in shares)	29,032,842	28,257,376	28,883,907	28,011,298
Diluted (in shares)	29,032,842	28,311,759	28,883,907	28,108,365
Oil
REVENUES
Revenues	$ 35,443,000	$ 38,791,000	$ 111,657,000	$ 105,111,000
Natural gas
REVENUES
Revenues	903,000	1,790,000	2,126,000	6,257,000
Natural gas liquids
REVENUES
Revenues	$ 2,858,000	$ 5,495,000	$ 10,691,000	$ 12,753,000