Frio County Drilling Permits

Every permit issued by the Texas Railroad Commission in Frio County — updated daily, data through 2026-09-11.

Frio County permitting is running 8.0 permits a month over the trailing 90 days (24 total, up 33% on the prior quarter). 2 were issued in the past week. FORMENTERA OPERATIONS LLC leads with 46 permits in the past 12 months, one of 7 operators active in the county.

Last 30 Days

Operators (30d)

Latest Permit

2026-09-11

All Time

4,301

4,301 permits

ISSUED	PERMIT	API	LEASE	OPERATOR	TYPE	DEPTH	HZ
1990-05-30	373940	42-163-32739	AVANT-MASSEY #1	DALE OPERATING COMPANY	DRILL	7,300	Y
1990-05-24	373800	42-163-32738	DUBOSE #1	DANTEX OIL & GAS, INC.	DRILL	6,400	Y
1990-05-24	373793	42-163-32737	CORBIN #2	CHRISTICO PETROLEUM COMPANY	DRILL	7,300	Y
1990-05-24	373618	42-163-32736	HILDEBRAND #2	WILLIAMS, CLAYTON W., JR., INC.	DRILL	6,800	Y
1990-05-22	373503	42-163-32732	MUDD, FLORENCE #1	WEBER ENERGY CORPORATION	RECOMP	9,800	Y
1990-05-18	373523	42-163-32735	KIEFER-URBAN UNIT #1	ORYX ENERGY COMPANY	DRILL	11,000	Y
1990-05-17	373520	42-163-32734	MORALES #2	PACIFIC ENTERPRISES OIL CO.(USA)	DRILL	7,100	Y
1990-05-17	373519	42-163-32733	BROWN, PAUL "A" #5R	TEX-HEX CORP.	DRILL	11,000	Y
1990-05-17	373519	42-163-32733	BROWN, PAUL "A" #5R	TEX-HEX CORP.	DRILL	10,420	Y
1990-05-16	373469	42-163-32731	RANKIN #1	FOSSIL BAY PETROLEUM, INC.	DRILL	9,000	Y
1990-05-16	373469	42-163-32731	RANKIN #1	FOSSIL BAY PETROLEUM, INC.	DRILL	9,000	Y
1990-05-15	373419	42-163-32730	PEARSALL PARTNERS/GLG W.A.CARNES #3	PEARSALL PARTNERS	DRILL	11,500	Y
1990-05-14	373346	42-163-32591	BARBARA WITTMAN UNIT #1	WCS OIL AND GAS CORPORATION	RECOMP	7,000	Y
1990-05-14	373253	42-163-32728	BENNETT BROS. "C" #5	NOBLE ENERGY, INC.	DRILL	6,580	Y
1990-05-14	373219	42-163-32729	HEISER #1	PENWELL ENERGY, INC.	DRILL	9,950	Y
1990-05-14	373219	42-163-32729	HEISER #1	PENWELL ENERGY, INC.	DRILL	9,150	Y
1990-05-14	373163	42-163-32727	BRACEWELL, MATHIS #1	INT'L TECHNOLOGY & TRADING INC.	DRILL	9,950	Y
1990-05-10	373201	42-163-32726	COLEMAN-PATTEN UNIT #1	ENCINA CORPORATION	DRILL	10,000	Y
1990-05-10	373201	42-163-32726	COLEMAN-PATTEN UNIT #8	HOPI, INC.	DRILL	10,000	Y
1990-05-10	373131	42-163-32725	SHINER RANCH #1	GEMINI EXPLORATION COMPANY	DRILL	7,000	Y
1990-05-10	373131	42-163-32725	SHINER RANCH #1	GEMINI EXPLORATION COMPANY	DRILL	8,000	Y
1990-05-10	373078	42-163-32722	SHEPPARD UNIT #1	ELLSWORTH, H. P. O&G PROPERTIES	DRILL	6,710	Y
1990-05-10	373078	42-163-32722	SHEPPARD UNIT #1	ELLSWORTH, H. P. O&G PROPERTIES	DRILL	7,000	Y
1990-05-09	373116	42-163-32724	MASSEY CHILDREN #1	DALE OPERATING COMPANY	DRILL	7,300	Y
1990-05-09	373026	42-163-32721	BASIN-HUGO #1	BASIN RESOURCES CORPORATION	DRILL	7,777	Y
1990-05-09	373024	42-163-32720	EDWARDS #1	SABRE OPERATING, INC.	DRILL	8,870	Y
1990-05-09	372999	42-163-32275	MARIA SWD #1	MARIAH ENERGY CORP.	RENTR	7,152
1990-05-09	372972	42-163-32718	FEE "A" #14H	WILLIAMS, CLAYTON W., JR., INC.	DRILL	6,400	Y
1990-05-09	372972	42-163-32718	FEE "A" #14H	WILLIAMS, CLAYTON W., JR., INC.	DRILL	6,400	Y
1990-05-09	372971	42-163-32717	AVANT #3	WILLIAMS, CLAYTON W., JR., INC.	DRILL	7,000	Y
1990-05-09	372970	42-163-32716	BURNS A #2	WILLIAMS, CLAYTON W., JR., INC.	DRILL	7,400	Y
1990-05-08	373099	42-163-32723	JOHNSTON #1	BRAYTON OIL CORP.	DRILL	6,000	Y
1990-05-08	373099	42-163-32723	JOHNSTON #1	BRAYTON OIL CORP.	DRILL	6,000	Y
1990-05-07	373047	42-163-32719	THOMPSON #1	EDCO ENERGY, INC.	DRILL	6,670	Y
1990-05-07	373047	42-163-32719	THOMPSON #1	EDCO ENERGY, INC.	DRILL	6,670	Y
1990-05-04	372826	42-163-32712	THOMPSON, J. C. JR. #3	GLG ENERGY, L.P.	DRILL	10,750	Y
1990-05-04	372826	42-163-32712	THOMPSON, J. C. JR. #3	GLG ENERGY, L.P.	DRILL	10,750	Y
1990-05-02	372881	42-163-32715	KNAPPICK #1	HUNTER & HADA	DRILL	7,500	Y
1990-05-02	372877	42-163-30914	HENDERSON, W. L. #1	ORYX ENERGY COMPANY	RECOMP	9,575	Y
1990-05-02	372871	42-163-32714	MORRIS TRUST #1	ACOCK ENG & OPER CO & HOPI, INC.	DRILL	7,000	Y
1990-05-02	372871	42-163-32714	MORRIS TRUST #1	ACOCK ENG & OPER CO & HOPI, INC.	DRILL	7,050	Y
1990-05-01	372846	42-163-32713	CARROLL #1	DALE OPERATING COMPANY	DRILL	7,300	Y
1990-04-30	372809	42-163-32711	AVANT, J. R. -B- #2	ORYX ENERGY COMPANY	DRILL	7,500	Y
1990-04-30	372809	42-163-32711	AVANT, J. R. -B- #2	ORYX ENERGY COMPANY	DRILL	11,852	Y
1990-04-27	372746	42-163-32710	TOEPPERWEIN-JONES UNIT #1	CHRISTICO PETROLEUM COMPANY	DRILL	9,500	Y
1990-04-27	372686	42-163-32709	PROCTOR, GENE #1	WEBER ENERGY CORPORATION	RECOMP	9,600	Y
1990-04-25	372593	42-163-32708	OBREGON #1	SHIELD PETROLEUM	DRILL	7,500	Y
1990-04-25	372593	42-163-32708	OBREGON #1	SHIELD PETROLEUM	DRILL	8,400	Y
1990-04-24	372567	42-163-32707	SILLER #1	WINDSOR EXPLORATION COMPANY	DRILL	6,000	Y
1990-04-23	372451	42-163-32706	CARNES #1	CANTRO EXPLORATION, INC.	DRILL	7,500	Y

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