Frio County Drilling Permits

Every permit issued by the Texas Railroad Commission in Frio County — updated daily, data through 2026-07-22.

Frio County permitting is running 7.0 permits a month over the trailing 90 days (21 total, down 5% on the prior quarter). 3 were issued in the past week. FORMENTERA OPERATIONS LLC leads with 34 permits in the past 12 months, one of 8 operators active in the county.

Last 30 Days

Operators (30d)

Latest Permit

2026-07-22

All Time

4,287

4,287 permits

ISSUED	PERMIT	API	LEASE	OPERATOR	TYPE	DEPTH	HZ
2019-02-12	849876	42-163-34171	WHITWELL G #121H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849875	42-163-34170	WHITWELL G #120H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849875	42-163-34170	WHITWELL G #120H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849872	42-163-34169	WHITWELL G #119H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849872	42-163-34169	WHITWELL G #119H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849865	42-163-34168	DERBY SOUTH C #112H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849859	42-163-34167	DERBY SOUTH C #111H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-02-12	849855	42-163-34166	DERBY SOUTH C #110H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-01-11	848599	42-163-34165	WHITWELL B #106H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-01-11	848599	42-163-34165	WHITWELL B #106H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-01-11	848599	42-163-34165	WHITWELL B #106H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-01-11	848596	42-163-34164	WHITWELL B #105H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-01-11	848596	42-163-34164	WHITWELL B #105H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-01-11	848596	42-163-34164	WHITWELL B #105H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-01-07	848325	42-163-34163	LOTHRINGER #3H	VIRTEX OPERATING COMPANY, INC.	DRILL	7,000	Y
2019-01-07	848325	42-163-34163	LOTHRINGER #3H	VIRTEX OPERATING COMPANY, INC.	DRILL	7,000	Y
2019-01-07	848308	42-163-34162	LOTHRINGER #2H	VIRTEX OPERATING COMPANY, INC.	DRILL	7,000	Y
2019-01-07	848308	42-163-34162	LOTHRINGER #2H	VIRTEX OPERATING COMPANY, INC.	DRILL	7,000	Y
2019-01-03	848207	42-163-34161	SNOOTS #1	LP OPERATING, LLC	DRILL	4,000
2018-12-31	847736	42-163-34159	SIEGELE #111H	EP ENERGY E&P COMPANY, L.P.	DRILL	11,000	Y
2018-12-31	847727	42-163-34158	SIEGELE #110H	EP ENERGY E&P COMPANY, L.P.	DRILL	11,000	Y
2018-12-31	847725	42-163-34157	SIEGELE #109H	EP ENERGY E&P COMPANY, L.P.	DRILL	11,000	Y
2018-12-31	847681	42-163-34155	SIEGELE #107H	EP ENERGY E&P COMPANY, L.P.	DRILL	11,000	Y
2018-12-31	847462	42-163-34154	WHITWELL B #104H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-12-31	847462	42-163-34154	WHITWELL B #104H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-12-31	846979	42-163-34151	MONTE LENOSO #C 2EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-12-31	846947	42-163-34153	BOLL FRO #A 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2018-12-31	845619	42-163-33150	HRH THOMPSON #8	BUSH, MARK A. OIL AND GAS INC.	RECOMP	7,200	Y
2018-12-31	840978	42-163-34126	SCHORP 'D' #1H	COMSTOCK OIL & GAS, LP	DRILL	9,000	Y
2018-12-31	840978	42-163-34126	SCHORP 301 #C301	VENADO OPERATING COMPANY LLC	DRILL	9,000	Y
2018-12-31	838607	42-163-34113	MELMS ESTATE #1H	BIGFOOT OIL LLC	DRILL	3,950	Y
2018-12-17	847819	42-163-34160	WHITWELL A #103HR	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-12-17	847685	42-163-34156	SIEGELE #108H	EP ENERGY E&P COMPANY, L.P.	DRILL	11,000	Y
2018-12-07	847462	42-163-34154	WHITWELL B #104H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-11-20	846981	42-163-34152	MONTE LENOSO #C 1EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-11-20	846977	42-163-34150	MONTE LENOSO #C 3EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-11-20	846585	42-163-34148	CARNES-REGENTS UNIT #A301	VENADO OPERATING COMPANY LLC	DRILL	11,200	Y
2018-11-19	846884	42-163-34149	MONTE LENOSO #C 4EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-10-31	846041	42-163-34147	WHITWELL A #103H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-10-30	846040	42-163-34146	WHITWELL A #102H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-10-19	845765	42-163-34142	WHITWELL ALLOCATION #A101H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-10-19	845765	42-163-34142	WHITWELL A #101H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2018-10-17	845775	42-163-34145	MONTE LENOSO #B 1EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-10-17	845774	42-163-34144	MONTE LENOSO #B 2EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-10-17	845774	42-163-34144	MONTE LENOSO #B 2EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	5,502	Y
2018-10-17	845772	42-163-34143	MONTE LENOSO #B 3EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-10-17	845772	42-163-34143	MONTE LENOSO #B 3EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	5,468	Y
2018-10-12	845675	42-163-34141	MONTE LENOSO #B 4EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2018-10-12	845675	42-163-34141	MONTE LENOSO #B 4EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	5,426	Y
2018-10-05	845295	42-163-33022	HARRIS A POOLED UNIT #5	MAGNOLIA ENERGY PARTNERS CO., LP	RECOMP	8,400	Y

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