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
2010-11-18	705368	42-311-34308	SWENSON #1H	COMSTOCK OIL & GAS, LP	DRILL	18,000	Y
2010-11-16	705239	42-311-34307	SWAIM #1H	MURPHY EXPLORATION & PROD. CO.	DRILL	10,052	Y
2010-11-16	705239	42-311-34307	SWAIM #1H	MURPHY EXPL. & PROD. CO. - USA	DRILL	10,460	Y
2010-11-04	703959	42-311-34306	HORTON, RP -A- #A 6	WELHAUSEN OPERATING COMPANY, LP	DRILL	10,500
2010-11-01	704483	42-311-34305	VIRGINIA FEE 'C' #3H	XTO ENERGY INC.	DRILL	18,000	Y
2010-10-27	704330	42-311-34304	MARTIN MASON N #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-27	704330	42-311-34304	MARTIN MASON N #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-22	704111	42-311-34303	LEE WHEELER -C- #1	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-10-22	704015	42-311-34302	DONNELL A #6H	PETROHAWK OPERATING COMPANY	DRILL	11,500	Y
2010-10-18	703677	42-311-34301	TEAL RANCH EFS #1H	AURORA RESOURCES CORPORATION	DRILL	10,800	Y
2010-10-18	703677	42-311-34301	TEAL RANCH EFS #1H	AURORA RESOURCES CORPORATION	DRILL	10,800	Y
2010-10-14	703519	42-311-34300	QUINTANILLA-JCB #4	WELHAUSEN OPERATING COMPANY, LP	DRILL	10,000
2010-10-13	703466	42-311-34299	FOX CREEK #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-13	703466	42-311-34299	FOX CREEK #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-13	703379	42-311-34298	NICHOLS #1H	ESCONDIDO RESOURCES II, LLC	DRILL	12,000	Y
2010-10-13	703379	42-311-34298	NICHOLS #1H	ESCONDIDO RESOURCES II, LLC	DRILL	12,000	Y
2010-10-13	703379	42-311-34298	NICHOLS #1H	ESCONDIDO RESOURCES II, LLC	DRILL	12,000	Y
2010-10-13	702933	42-311-34292	R. BRACKEN #37H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2010-10-13	702933	42-311-34292	R. BRACKEN #37H	SWIFT ENERGY OPERATING, LLC	DRILL	12,500	Y
2010-10-07	703264	42-311-34297	Y-BAR #1H	MURPHY EXPL. & PROD. CO. - USA	DRILL	9,680	Y
2010-10-07	703264	42-311-34297	Y-BAR #1H	MURPHY EXPL. & PROD. CO. - USA	DRILL	9,680	Y
2010-10-06	703232	42-311-34296	CARLSON "A" #1H	COMSTOCK OIL & GAS, LP	DRILL	17,500	Y
2010-10-06	703232	42-311-34296	CARLSON "A" #1H	COMSTOCK OIL & GAS, LP	DRILL	17,500	Y
2010-10-06	703232	42-311-34296	CARLSON "A" #1H	COMSTOCK OIL & GAS, LP	DRILL	17,500	Y
2010-10-01	702973	42-311-34295	FOX CREEK #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702973	42-311-34295	FOX CREEK #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702971	42-311-34294	MARTIN MASON E #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702971	42-311-34294	MARTIN MASON E #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702945	42-311-34291	RALPH EDWARDS L #1H	CHESAPEAKE OPERATING, INC.	DRILL	14,000	Y
2010-10-01	702945	42-311-34291	RALPH EDWARDS #L 1H	CHESAPEAKE OPERATING, INC.	DRILL	14,000	Y
2010-10-01	702942	42-311-34293	MARTIN MASON D #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702942	42-311-34293	MARTIN MASON D #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-10-01	702701	42-311-34290	RHODE RANCH 13 #1	HURD ENTERPRISES, LTD.	DRILL	10,000
2010-10-01	702701	42-311-34290	RHODE RANCH #1301	HURD ENTERPRISES, LTD.	DRILL	10,000
2010-09-23	702506	42-311-34289	EDWARDS #1H	PETROHAWK OPERATING COMPANY	DRILL	12,200	Y
2010-09-16	702054	42-311-34288	WHEELER #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-09-16	702053	42-311-34287	WHEELER #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-09-16	702053	42-311-34287	WHEELER #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-09-13	701804	42-311-34284	SMITH CC #1H	XTO ENERGY INC.	DRILL	17,000	Y
2010-09-13	701804	42-311-34284	SMITH CC #1H	XTO ENERGY INC.	DRILL	17,000	Y
2010-09-10	701903	42-311-34286	SAN MIGUEL RANCH EF #3H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-09-10	701903	42-311-34286	SAN MIGUEL RANCH EF #3H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-09-10	701903	42-311-34286	SAN MIGUEL RANCH EF #3H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-09-10	701901	42-311-34285	SAN MIGUEL RANCH EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-09-10	701901	42-311-34285	SAN MIGUEL RANCH EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	16,000	Y
2010-09-09	701536	42-311-32445	HOSTETTER #2	CHEVRON U. S. A. INC.	RECOMP	12,550
2010-09-08	701693	42-311-34283	WHEELER #M 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-09-08	701693	42-311-34283	WHEELER #M 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-09-03	701457	42-311-34282	RHODE RANCH 22 #1	HURD ENTERPRISES, LTD.	DRILL	12,000
2010-09-03	701457	42-311-34282	RHODE RANCH #2201	HURD ENTERPRISES, LTD.	DRILL	12,000

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