Condensed Consolidated Statements of Operations - Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Revenues	$ 147,416	$ 234,382	$ 371,704	$ 450,720
Lease bonus - mineral acreage	4,062	0	4,062	0
Realized gain on derivatives	44,110	1,165	54,977	4,435
Unrealized (loss) gain on derivatives	(132,668)	6,157	3,762	(39,562)
Total revenues	62,920	241,704	434,505	415,593
Expenses
Production taxes, transportation and processing	18,797	21,542	40,513	41,207
Lease operating	26,162	26,351	57,072	57,514
Purchased natural gas	10,922	8,172	18,980	18,806
Depletion, depreciation and amortization	93,350	80,132	184,057	156,999
Accretion of asset retirement obligations	495	420	971	834
Full-cost ceiling impairment	324,001	0	324,001	0
General and administrative	14,723	19,876	30,945	38,166
Total expenses	498,230	164,915	676,283	331,264
Operating (loss) income	(435,310)	76,789	(241,778)	84,329
Net loss on asset sales and impairment	(2,632)	(368)	(2,632)	(368)
Other income (expense)
Interest expense	(18,297)	(18,068)	(38,109)	(35,997)
Other income (expense)	473	(423)	1,793	(532)
Total other expense	(20,456)	(18,859)	(38,948)	(36,897)
(Loss) income before income taxes	(455,766)	57,930	(280,726)	47,432
Income tax (benefit) provision
Deferred	(109,823)	12,858	(69,866)	11,845
Total income tax (benefit) provision	(109,823)	12,858	(69,866)	11,845
Net (loss) income	(345,943)	45,072	(210,860)	35,587
Net income attributable to non-controlling interest in subsidiaries	(7,473)	(8,320)	(16,827)	(15,782)
Net (loss) income attributable to Matador Resources Company shareholders	$ (353,416)	$ 36,752	$ (227,687)	$ 19,805
(Loss) earnings per common share
Basic (in dollars per share)	$ (3.04)	$ 0.32	$ (1.96)	$ 0.17
Diluted (in dollars per share)	$ (3.04)	$ 0.31	$ (1.96)	$ 0.17
Weighted average common shares outstanding
Basic (shares)	116,071	116,571	115,977	116,469
Diluted (shares)	116,071	116,903	115,977	116,839
Oil and natural gas revenues
Revenues
Revenues	$ 118,767	$ 211,060	$ 316,681	$ 404,329
Third-party midstream services revenues
Revenues
Revenues	14,668	14,359	30,498	26,197
Expenses
Plant and other midstream services operating	9,780	8,422	19,744	17,738
Sales of purchased natural gas
Revenues
Revenues	$ 13,981	$ 8,963	$ 24,525	$ 20,194