CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS — UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues
Revenues	$ 442,842	$ 147,416	$ 779,023	$ 371,704
Lease bonus - mineral acreage	0	4,062	0	4,062
Realized (loss) gain on derivatives	(42,611)	44,110	(68,524)	54,977
Unrealized (loss) gain on derivatives	(42,804)	(132,668)	(86,227)	3,762
Total revenues	357,427	62,920	624,272	434,505
Expenses
Production taxes, transportation and processing	43,843	18,797	78,017	40,513
Lease operating	28,752	26,162	54,691	57,072
Purchased natural gas	9,628	10,922	12,483	18,980
Depletion, depreciation and amortization	91,444	93,350	166,307	184,057
Accretion of asset retirement obligations	511	495	1,011	971
Full-cost ceiling impairment	0	324,001	0	324,001
General and administrative	24,397	14,723	46,585	30,945
Total expenses	212,321	498,230	386,503	676,283
Operating income (loss)	145,106	(435,310)	237,769	(241,778)
Other income (expense)
Net loss on asset sales and impairment	0	(2,632)	0	(2,632)
Interest expense	(17,940)	(18,297)	(37,590)	(38,109)
Other income (expense)	14	473	(661)	1,793
Total other expense	(17,926)	(20,456)	(38,251)	(38,948)
Income (loss) before income taxes	127,180	(455,766)	199,518	(280,726)
Income tax provision (benefit)
Deferred	5,349	(109,823)	8,189	(69,866)
Income tax provision (benefit)	5,349	(109,823)	8,189	(69,866)
Net income (loss)	121,831	(345,943)	191,329	(210,860)
Net income attributable to non-controlling interest in subsidiaries	(15,926)	(7,473)	(24,779)	(16,827)
Net income (loss) attributable to Matador Resources Company shareholders	$ 105,905	$ (353,416)	$ 166,550	$ (227,687)
Earnings (loss) per common share
Basic (in dollars per share)	$ 0.91	$ (3.04)	$ 1.43	$ (1.96)
Diluted (in dollars per share)	$ 0.89	$ (3.04)	$ 1.40	$ (1.96)
Weighted average common shares outstanding
Basic (in shares)	116,801	116,071	116,804	115,977
Diluted (in shares)	118,993	116,071	118,617	115,977
Oil and natural gas revenues
Revenues
Revenues	$ 412,074	$ 118,767	$ 728,307	$ 316,681
Third-party midstream services revenues
Revenues
Revenues	19,850	14,668	35,288	30,498
Expenses
Plant and other midstream services operating	13,746	9,780	27,409	19,744
Sales of purchased natural gas
Revenues
Revenues	$ 10,918	$ 13,981	$ 15,428	$ 24,525