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
2010-07-13	698802	42-311-34249	WHEELER A #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-07-13	698802	42-311-34249	WHEELER #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-07-13	698802	42-311-34249	WHEELER #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-07-13	698703	42-311-34247	HAYNES #1H	EOG RESOURCES, INC.	DRILL	12,000	Y
2010-07-12	698754	42-311-34248	BRACKEN-J.V. #6 H	PETROHAWK OPERATING COMPANY	DRILL	14,500	Y
2010-07-08	698664	42-311-34246	NICHOLS #1H	PETROHAWK OPERATING COMPANY	DRILL	13,000	Y
2010-07-08	695965	42-311-34245	EZZELL, ROSE #5	WOOD, C.W.	DRILL	1,150
2010-07-02	698446	42-311-34244	SAN MIGUEL RANCH OL #1	SWIFT ENERGY OPERATING, LLC	DRILL	9,300
2010-07-02	698311	42-311-34242	SBR #1H	SWIFT ENERGY OPERATING, LLC	DRILL	15,500	Y
2010-06-30	698232	42-311-34241	MARTIN MASON C #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-06-23	697885	42-311-34239	MARTIN MASON B #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-06-23	697885	42-311-34239	MARTIN MASON B #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-06-22	697876	42-311-34240	WHITEHURST #1H	SWIFT ENERGY OPERATING, LLC	DRILL	15,500	Y
2010-06-21	697806	42-311-34238	RECTIFIER LINDHOLM #L000ND	TEXAS EASTERN TRANSMISSION, LP	DRILL	500
2010-06-16	697545	42-311-33887	MARTIN DEEP GAS UNIT #2	CAMDEN RESOURCES, LLC	RECOMP	17,000
2010-06-09	697167	42-311-32370	SAN MIGUEL NO. 1 #401	WELHAUSEN OPERATING COMPANY, LP	RECOMP	12,000
2010-06-09	697167	42-311-32370	SAN MIGUEL NO. 1 #401	WELHAUSEN OPERATING COMPANY, LP	RECOMP	12,000
2010-06-08	696928	42-311-34237	GUBBELS #48	ENERQUEST OPERATING L.L.C.	DRILL	5,850
2010-05-28	696541	42-311-34235	STONE #2	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-05-27	695707	42-311-34236	PC-Q EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-27	695707	42-311-34236	PC-Q EF #2H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-26	696459	42-311-34234	STONE #1	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-05-21	696321	42-311-34232	Y BAR EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,500	Y
2010-05-21	696321	42-311-34232	Y BAR EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,500	Y
2010-05-21	696279	42-311-34231	WHEELER, LEE A-2 #A 5	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-05-21	696139	42-311-34233	FOX CREEK UNIT B #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2010-05-10	695691	42-311-34230	PC-Q EF #3H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-10	695691	42-311-34230	PC-Q EF #3H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-07	695572	42-311-34229	WOODWARD G.U. #1H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-05-06	695323	42-311-34228	W. BRACKEN OL #2H	SWIFT ENERGY OPERATING, LLC	DRILL	19,000	Y
2010-05-05	695353	42-311-34227	PC-Q EF #4H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-05	695353	42-311-34227	PC-Q EF #4H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-05-03	695321	42-311-34226	W. BRACKEN OL #1H	SWIFT ENERGY OPERATING, LLC	DRILL	19,000	Y
2010-04-29	694520	42-311-34225	WHEELER, LEE A-2 #A 4	WELHAUSEN OPERATING COMPANY, LP	DRILL	11,000
2010-04-28	694875	42-311-34223	BRACKEN - J.V. #2H	PETROHAWK OPERATING COMPANY	DRILL	17,000	Y
2010-04-27	695077	42-311-34224	QUINTANILLA ME-YOU EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,500	Y
2010-04-27	695077	42-311-34224	QUINTANILLA ME-YOU EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,500	Y
2010-04-27	695077	42-311-34224	QUINTANILLA ME-YOU EF #1H	SWIFT ENERGY OPERATING, LLC	DRILL	16,500	Y
2010-04-22	694550	42-311-34218	FRANCES DILWORTH #5H	SAN ISIDRO DEVELOPMENT CO, L. C.	DRILL	11,500	Y
2010-04-22	694550	42-311-34218	FRANCES DILWORTH #5H	CHESAPEAKE OPERATING, INC.	DRILL	11,500	Y
2010-04-22	694550	42-311-34218	FRANCES DILWORTH #5H	CHESAPEAKE OPERATING, L.L.C.	DRILL	11,500	Y
2010-04-22	694522	42-311-34222	ANTHONY FOREST PRODUCTS #3H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-04-22	694522	42-311-34222	ANTHONY FOREST PRODUCTS #3H	SWIFT ENERGY OPERATING, LLC	DRILL	17,000	Y
2010-04-22	694419	42-311-31964	BOOTH #1	BELLOWS OPERATING CO., L. C.	RENTR	6,600
2010-04-21	694600	42-311-34220	MARTIN-MASON RANCH UNIT "A" #1H	UNION GAS OPERATING COMPANY	DRILL	9,850	Y
2010-04-19	694556	42-311-34219	FRANCES DILWORTH #6H	SAN ISIDRO DEVELOPMENT CO, L. C.	DRILL	11,500	Y
2010-04-19	694556	42-311-34219	FRANCES DILWORTH #6H	CHESAPEAKE OPERATING, INC.	DRILL	11,500	Y
2010-04-19	694556	42-311-34219	FRANCES DILWORTH #6H	CHESAPEAKE OPERATING, L.L.C.	DRILL	11,500	Y
2010-04-19	694548	42-311-34217	EPLEY #1H	SAN ISIDRO DEVELOPMENT CO, L. C.	DRILL	11,500	Y
2010-04-13	693708	42-311-34216	RISER, J.G. #7	HURD ENTERPRISES, LTD.	DRILL	10,000

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