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
2011-08-12	722126	42-311-34630	SMR JV EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2011-08-12	722126	42-311-34630	SMR JV EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2011-08-12	722125	42-311-34629	SMR JV EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2011-08-12	721972	42-311-34627	THELMA-BRITE #10H	EOG RESOURCES, INC.	DRILL	10,000	Y
2011-08-12	721972	42-311-34627	THELMA-BRITE #10H	EOG RESOURCES, INC.	DRILL	11,000	Y
2011-08-10	721778	42-311-34626	MCKENZIE FOLEY UNIT A MCM #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-10	721778	42-311-34626	MCKENZIE FOLEY UNIT A MCM #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-10	721473	42-311-33723	YEAGER GAS UNIT #4	CHEVRON U. S. A. INC.	RECOMP	19,000
2011-08-09	721747	42-311-34625	SWAIM UNIT II MCM #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-09	721668	42-311-34623	PRINCE MCM #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-08	721583	42-311-34621	MCCLAUGHERTY UNIT #1H	XTO ENERGY INC.	DRILL	17,500	Y
2011-08-08	721581	42-311-34617	THELMA-BRITE #4H	EOG RESOURCES, INC.	DRILL	10,000	Y
2011-08-08	721581	42-311-34617	THELMA-BRITE #4H	EOG RESOURCES, INC.	DRILL	11,000	Y
2011-08-05	721589	42-311-34620	THELMA-BRITE #6H	EOG RESOURCES, INC.	DRILL	10,000	Y
2011-08-05	721589	42-311-34620	THELMA-BRITE #6H	EOG RESOURCES, INC.	DRILL	11,000	Y
2011-08-05	721435	42-311-34619	TYLER #4H	MURPHY EXPL. & PROD. CO. - USA	DRILL	10,915	Y
2011-08-05	721431	42-311-34618	TYLER #3H	MURPHY EXPL. & PROD. CO. - USA	DRILL	10,576	Y
2011-08-05	721427	42-311-34616	TYLER #2H	MURPHY EXPL. & PROD. CO. - USA	DRILL	10,571	Y
2011-08-04	721416	42-311-34615	MARTIN MASON M #F 3H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-03	721349	42-311-34613	NBR EF #5H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2011-08-03	721345	42-311-34614	SWAIM UNIT I MCM #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-01	721230	42-311-34612	THELMA-BRITE #2H	EOG RESOURCES, INC.	DRILL	11,000	Y
2011-08-01	721182	42-311-34611	MARTIN MASON UNIT E #F 4H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-29	721183	42-311-34610	TEAL RANCH WILCOX #1	AURORA RESOURCES CORPORATION	DRILL	6,900
2011-07-29	721053	42-311-34607	FRANKLIN #B 1H	TALISMAN ENERGY USA INC.	DRILL	13,500	Y
2011-07-29	721053	42-311-34607	FRANKLIN #B 1H	TALISMAN ENERGY USA INC.	DRILL	13,500	Y
2011-07-29	720842	42-311-34609	WHEELER, LEE A-2 #6	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2011-07-29	720842	42-311-34609	WHEELER, LEE A-2 #6	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2011-07-27	720848	42-311-34604	PRINCE MCM #A 5H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-27	720847	42-311-34603	PRINCE MCM #A 2H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-27	720817	42-311-34606	FRANKLIN #A 1H	TALISMAN ENERGY USA INC.	DRILL	13,000	Y
2011-07-27	720817	42-311-34606	FRANKLIN #A 1H	TALISMAN ENERGY USA INC.	DRILL	13,000	Y
2011-07-26	720896	42-311-34605	DOZIER #A 1H	TALISMAN ENERGY USA INC.	DRILL	13,000	Y
2011-07-22	720618	42-311-34602	RIVER LOWE RANCH #1H	EOG RESOURCES, INC.	DRILL	10,500	Y
2011-07-22	720575	42-311-34601	STS A - 692 #1H	HUNT OIL COMPANY	DRILL	18,000	Y
2011-07-22	720575	42-311-34601	STS A - 692 #1H	HUNT OIL COMPANY	DRILL	18,000	Y
2011-07-22	720118	42-311-34600	ALEXANDER MURPHY #1H	PETROHAWK OPERATING COMPANY	DRILL	14,000	Y
2011-07-22	720118	42-311-34600	ALEXANDER MURPHY #1H	BHP BILLITON PET(TXLA OP) CO	DRILL	14,000	Y
2011-07-21	720432	42-311-34599	MCKENZIE #J 2H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-21	720432	42-311-34599	MCKENZIE UNIT J #2H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-18	720256	42-311-34596	MCKENZIE #I 2H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-18	720256	42-311-34596	MCKENZIE UNIT #I 2H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-18	720034	42-311-34594	AUSTIN #2H	EOG RESOURCES, INC.	DRILL	11,000	Y
2011-07-15	719279	42-311-34590	RALPH EDWARDS #H 1H	CHESAPEAKE OPERATING, INC.	DRILL	14,000	Y
2011-07-14	720061	42-311-34595	FOLEY MCM #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-14	720061	42-311-34595	FOLEY MCM #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-07-13	718721	42-311-34574	FOX CREEK UNIT G #1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-07-13	718721	42-311-34574	FOX CREEK UNIT G #1H	CHESAPEAKE OPERATING, INC.	DRILL	10,000	Y
2011-07-11	719797	42-311-34593	KOLINEK #1H	EOG RESOURCES, INC.	DRILL	10,000	Y
2011-07-11	719797	42-311-34593	KOLINEK #1H	EOG RESOURCES, INC.	DRILL	10,000	Y

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