CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS — UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Revenues	$ 520,721	$ 221,825	$ 1,299,744	$ 593,529
Lease bonus - mineral acreage	0	0	0	4,062
Realized (loss) gain on derivatives	(57,419)	(5,406)	(125,943)	49,571
Unrealized gain (loss) on derivatives	9,049	(13,033)	(77,178)	(9,271)
Total revenues	472,351	203,386	1,096,623	637,891
Expenses
Production taxes, transportation and processing	48,896	25,840	126,913	66,353
Lease operating	27,433	23,392	82,124	80,464
Purchased natural gas	34,581	11,144	47,064	30,124
Depletion, depreciation and amortization	89,061	88,025	255,368	272,082
Accretion of asset retirement obligations	518	478	1,529	1,449
Full-cost ceiling impairment	0	251,163	0	575,164
General and administrative	24,633	15,100	71,218	46,045
Total expenses	242,165	424,527	628,668	1,100,810
Operating income (loss)	230,186	(221,141)	467,955	(462,919)
Other income (expense)
Net loss on asset sales and impairment	(251)	0	(251)	(2,632)
Interest expense	(17,989)	(18,231)	(55,579)	(56,340)
Other (expense) income	(585)	(238)	(1,246)	1,555
Total other expense	(18,825)	(18,469)	(57,076)	(57,417)
Income (loss) before income taxes	211,361	(239,610)	410,879	(520,336)
Income tax provision (benefit)
Deferred	(6,701)	26,497	1,488	(43,369)
Income tax (benefit) provision	(6,701)	26,497	1,488	(43,369)
Net income (loss)	218,062	(266,107)	409,391	(476,967)
Net income attributable to non-controlling interest in subsidiaries	(14,434)	(9,957)	(39,213)	(26,784)
Net income (loss) attributable to Matador Resources Company shareholders	$ 203,628	$ (276,064)	$ 370,178	$ (503,751)
Earnings (loss) per common share
Basic (in dollars per share)	$ 1.74	$ (2.38)	$ 3.17	$ (4.34)
Diluted (in dollars per share)	$ 1.71	$ (2.38)	$ 3.12	$ (4.34)
Weighted average common shares outstanding
Basic (in shares)	117,008	116,155	116,872	116,036
Diluted (in shares)	119,197	116,155	118,788	116,036
Oil and natural gas revenues
Revenues
Revenues	$ 461,465	$ 189,104	$ 1,189,772	$ 505,785
Third-party midstream services revenues
Revenues
Revenues	20,486	19,363	55,774	49,861
Expenses
Plant and other midstream services operating	17,043	9,385	44,452	29,129
Sales of purchased natural gas
Revenues
Revenues	$ 38,770	$ 13,358	$ 54,198	$ 37,883