Mcmullen County Drilling Permits

Every permit issued by the Texas Railroad Commission in Mcmullen County — updated daily, data through 2026-07-20.

Mcmullen County permitting is running 11 permits a month over the trailing 90 days (32 total, up 60% on the prior quarter). EOG RESOURCES, INC. leads with 29 permits in the past 12 months, one of 16 operators active in the county.

Last 30 Days

Operators (30d)

Latest Permit

2026-07-20

All Time

8,541

8,541 permits

ISSUED	PERMIT	API	LEASE	OPERATOR	TYPE	DEPTH	HZ
2010-03-25	693385	42-311-34215	ANTHONY FOREST PRODUCTS #2H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-03-24	693353	42-311-34214	TYLER RANCH #5	AURORA RESOURCES CORPORATION	DRILL	9,000
2010-03-23	692894	42-311-34213	QUINTANILLA FBH #2	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-03-23	692894	42-311-34213	QUINTANILLA FBH #2	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-03-22	693155	42-311-34212	WHEELER #1	ANADARKO MINERALS, INC.	DRILL	10,400
2010-03-22	693155	42-311-34212	WHEELER #1	CHESAPEAKE OPERATING, INC.	DRILL	16,000
2010-03-19	693015	42-311-34211	G. L. HAYES #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-03-19	693015	42-311-34211	G. L. HAYES #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-03-09	692400	42-311-34209	DISCHER #1H	SWIFT ENERGY OPERATING, LLC	DRILL	19,000	Y
2010-03-09	692400	42-311-34209	DISCHER #1H	SWIFT ENERGY OPERATING, LLC	DRILL	19,000	Y
2010-03-09	692395	42-311-34210	WHEELER #1	ROCK RESOURCES, INC.	DRILL	7,000
2010-03-03	692040	42-311-34208	SWAIM-WHEELER-DOUBLE K UNIT #1	NCEY HOLDINGS, LLC	DRILL	6,250
2010-03-03	691263	42-311-34201	WHITEHURST - J. V. #6H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-03-03	691263	42-311-34201	WHITEHURST - J. V. #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-02-26	691848	42-311-34207	ANTHONY ET AL-J.V. #1H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-26	691848	42-311-34207	ANTHONY ET AL-J.V. #1H	PETROHAWK OPERATING COMPANY	DRILL	13,000	Y
2010-02-22	691184	42-311-34206	RHODE RANCH #7801	HURD ENTERPRISES, LTD.	DRILL	12,000
2010-02-18	691410	42-311-34205	HOSKINS UNIT #1	AURORA RESOURCES CORPORATION	DRILL	12,000
2010-02-18	691388	42-311-34204	BRACKEN-J.V. 6488 #1H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-17	691302	42-311-34203	BRACKEN - J. V. #9H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-17	691273	42-311-34202	BARFORK BAR - J. V. #7H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-16	691252	42-311-34200	HUFF, J. V. #5H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-16	691242	42-311-34199	BRACKEN - J. V. #3H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-02-12	691243	42-311-34198	SWAIM 58 #4	NCEY HOLDINGS, LLC	DRILL	6,250
2010-02-11	690737	42-311-34197	SAN MIGUEL #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-02-11	690737	42-311-34197	SAN MIGUEL #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-02-11	690737	42-311-34197	SAN MIGUEL #1H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-02-08	690641	42-311-34196	LAYTON "A" #3H	XTO ENERGY INC.	DRILL	16,500	Y
2010-02-08	690641	42-311-34196	LAYTON "A" #3H	XTO ENERGY INC.	DRILL	16,500	Y
2010-02-08	690640	42-311-34195	LAYTON "A" #2H	XTO ENERGY INC.	DRILL	18,000	Y
2010-02-08	690637	42-311-34194	LAYTON "A" #1H	XTO ENERGY INC.	DRILL	18,000	Y
2010-02-03	690572	42-311-34193	HUFF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-02-03	690168	42-311-34192	STS #1667	BLACKBRUSH O & G, INC.	DRILL	9,500
2010-02-03	690168	42-311-34192	STS UNIT #1667H	BLACKBRUSH O & G, INC.	DRILL	9,500	Y
2010-01-28	690186	42-311-34191	FRANCES DILWORTH #4H	SAN ISIDRO DEVELOPMENT CO, L. C.	DRILL	11,500	Y
2010-01-28	690186	42-311-34191	FRANCES DILWORTH #4H	CHESAPEAKE OPERATING, L.L.C.	DRILL	11,500	Y
2010-01-27	690161	42-311-34190	FRANCES DILWORTH #3H	SAN ISIDRO DEVELOPMENT CO, L. C.	DRILL	11,500	Y
2010-01-27	690161	42-311-34190	FRANCES DILWORTH #3H	CHESAPEAKE OPERATING, INC.	DRILL	11,500	Y
2010-01-27	690161	42-311-34190	FRANCES DILWORTH #3H	CHESAPEAKE OPERATING, L.L.C.	DRILL	11,500	Y
2010-01-15	689547	42-311-34189	HENRY #4	SWIFT ENERGY OPERATING, LLC	DRILL	11,000
2010-01-14	689672	42-311-34188	FURIE-LA JOLLA #1H	ESPADA OPERATING LLC	DRILL	17,000	Y
2010-01-14	689613	42-311-34187	LOWE #3H	PETROHAWK OPERATING COMPANY	DRILL	18,500	Y
2010-01-06	689307	42-311-34186	LOWE #1H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-01-06	689307	42-311-34186	LOWE #1H	PETROHAWK OPERATING COMPANY	DRILL	18,500	Y
2010-01-06	689191	42-311-34185	MOBIL WHEELER #5	WELHAUSEN OPERATING COMPANY, LP	DRILL	12,000
2009-12-31	689227	42-311-34184	DOUBLE K SOUTH #3	NCEY HOLDINGS, LLC	DRILL	6,200
2009-12-31	689226	42-311-34183	DOUBLE K SOUTH #2	NCEY HOLDINGS, LLC	DRILL	6,200
2009-12-31	689225	42-311-34182	DOUBLE K SOUTH #1	NCEY HOLDINGS, LLC	DRILL	6,200
2009-12-22	688808	42-311-34181	HENRY #3	SWIFT ENERGY OPERATING, LLC	DRILL	11,000
2009-12-10	688409	42-311-34180	SCARBOROUGH #1	NEWGULF PETROLEUM, LLC	DRILL	1,600

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Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Mcmullen County.