Condensed Consolidated Statements of Operations - Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Revenues	$ 264,498	$ 223,091	$ 715,218	$ 620,539
Lease bonus - mineral acreage	1,711	0	1,711	0
Realized gain (loss) on derivatives	3,346	5,424	7,781	(1,322)
Unrealized gain (loss) on derivatives	9,847	(21,337)	(29,715)	(9,492)
Total revenues	279,402	207,178	694,995	609,725
Expenses
Production taxes, transportation and processing	24,762	20,215	65,969	58,116
Lease operating	29,714	22,531	87,228	69,685
Purchased natural gas	16,608	0	35,414	0
Depletion, depreciation and amortization	92,498	70,457	249,497	192,664
Accretion of asset retirement obligations	520	387	1,354	1,126
General and administrative	20,381	18,444	58,547	55,739
Total expenses	193,300	139,325	524,564	394,517
Operating income	86,102	67,853	170,431	215,208
Other income (expense)
Net loss on asset sales and inventory impairment	(439)	(196)	(807)	(196)
Interest expense	(18,175)	(10,340)	(54,172)	(26,835)
Prepayment premium on extinguishment of debt	0	(31,226)	0	(31,226)
Other expense	(245)	(976)	(777)	(1,275)
Total other expense	(18,859)	(42,738)	(55,756)	(59,532)
Income before income taxes	67,243	25,115	114,675	155,676
Income tax provision
Deferred	13,490	0	25,335	0
Total income tax provision	13,490	0	25,335	0
Net income	53,753	25,115	89,340	155,676
Net income attributable to non-controlling interest in subsidiaries	9,800	7,321	25,582	18,182
Net income attributable to Matador Resources Company shareholders	$ 43,953	$ 17,794	$ 63,758	$ 137,494
Earnings per common share
Basic (in dollars per share)	$ 0.38	$ 0.15	$ 0.55	$ 1.22
Diluted (in dollars per share)	$ 0.38	$ 0.15	$ 0.54	$ 1.21
Weighted average common shares outstanding
Basic (shares)	116,643	116,358	116,541	112,659
Diluted (shares)	116,976	116,912	116,994	113,208
Oil and natural gas revenues
Revenues
Revenues	$ 229,377	$ 216,282	$ 633,706	$ 607,255
Third-party midstream services revenues
Revenues
Revenues	15,257	6,809	41,454	13,284
Expenses
Plant and other midstream services operating	8,817	7,291	26,555	17,187
Sales of purchased natural gas
Revenues
Revenues	19,864	$ 0	40,058	$ 0
Lease bonus - mineral acreage	$ 1,711		$ 1,711