Frio County Drilling Permits

Every permit issued by the Texas Railroad Commission in Frio County — updated daily, data through 2026-08-19.

Frio County permitting is running 7.3 permits a month over the trailing 90 days (22 total, up 22% on the prior quarter). FORMENTERA OPERATIONS LLC leads with 45 permits in the past 12 months, one of 7 operators active in the county.

Last 30 Days

Operators (30d)

Latest Permit

2026-08-19

All Time

4,299

4,299 permits

ISSUED	PERMIT	API	LEASE	OPERATOR	TYPE	DEPTH	HZ
2019-10-03	857522	42-163-34211	WHITWELL E #113H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-10-03	857520	42-163-34210	WHITWELL E #112H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-10-03	857520	42-163-34210	WHITWELL E #112H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-10-03	857519	42-163-34209	WHITWELL D #111H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-10-03	857519	42-163-34209	WHITWELL D #111H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-10-03	857518	42-163-34212	WHITWELL D #110H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-10-03	857518	42-163-34212	WHITWELL D #110H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-09-30	857485	42-163-34208	WHITWELL C #109H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-09-30	857485	42-163-34208	WHITWELL C #109H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-09-30	857483	42-163-34207	WHITWELL C #108H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-09-30	857483	42-163-34207	WHITWELL C #108H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-09-30	857481	42-163-34206	WHITWELL C #107H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-09-30	857481	42-163-34206	WHITWELL C #107H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2019-09-27	857426	42-163-34205	CYNDI UNIT #3H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-27	857426	42-163-34205	CYNDI UNIT #3H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-27	857424	42-163-34204	CYNDI UNIT #2H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-27	857424	42-163-34204	CYNDI UNIT #2H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-27	857423	42-163-34203	CYNDI UNIT #1H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-27	857423	42-163-34203	CYNDI UNIT #1H	AGERON ENERGY, LLC	DRILL	6,800	Y
2019-09-20	857232	42-163-34202	MARRS BAUERLE UNIT #3H	AGERON ENERGY, LLC	DRILL	6,600	Y
2019-09-20	857229	42-163-34200	MARRS BAUERLE UNIT #2H	AGERON ENERGY, LLC	DRILL	6,600	Y
2019-08-29	856613	42-163-34199	SNOOTS A #2	LP OPERATING, LLC	DRILL	4,000
2019-08-29	856613	42-163-34199	SNOOTS A #2	LP OPERATING, LLC	DRILL	4,500
2019-08-01	855746	42-163-34198	BENKE #A301	VENADO OPERATING COMPANY LLC	DRILL	7,500	Y
2019-08-01	855746	42-163-34198	BENKE #A301	VENADO OPERATING COMPANY LLC	DRILL	7,500	Y
2019-07-25	855453	42-163-34197	TALON UNIT #A303	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-25	855453	42-163-34197	TALON UNIT #A303	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-25	855452	42-163-34196	TALON UNIT #A302	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-25	855452	42-163-34196	TALON UNIT #A302	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-25	855451	42-163-34195	TALON UNIT #A301	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-25	855451	42-163-34195	TALON UNIT #A301	VENADO OPERATING COMPANY LLC	DRILL	8,100	Y
2019-07-22	855185	42-163-34194	DERBY NORTH C #115H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-07-22	855184	42-163-34193	DERBY NORTH C #114H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-07-22	855123	42-163-34192	DERBY NORTH C #113H	TRINITY OPERATING (USG), LLC	DRILL	10,000	Y
2019-06-26	854496	42-163-33460	HEISER #1H	BLACKBRUSH O & G, LLC	FLD-XFR	7,300	Y
2019-06-20	854406	42-163-34191	BIGFOOT #1	LP OPERATING, LLC	DRILL	4,250
2019-06-19	854302	42-163-34190	BIGFOOT #2	LP OPERATING, LLC	DRILL	4,250
2019-05-16	853061	42-163-34189	WHITLEY #1 H	KRC OPERATING, LLC	DRILL	7,000	Y
2019-04-18	851295	42-163-32831	HALFF & OPPENHEIMER #1	BIGFOOT OIL LLC	RECOMP	4,050
2019-04-18	851295	42-163-32831	HALFF & OPPENHEIMER #1B	BIGFOOT OIL LLC	RECOMP	7,800
2019-03-13	850881	42-163-34188	MONTE LENOSO #D 4EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2019-03-13	850879	42-163-34187	MONTE LENOSO #D 3EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2019-03-13	850878	42-163-34186	MONTE LENOSO #D 2EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2019-03-11	850838	42-163-34185	SHINER RANCH B #106V	BLACKBRUSH O & G, LLC	DRILL	7,600
2019-03-11	850837	42-163-34184	SHINER RANCH #104H	BLACKBRUSH O & G, LLC	DRILL	7,600	Y
2019-03-11	850837	42-163-34184	SHINER RANCH #104H	BLACKBRUSH O & G, LLC	DRILL	7,600	Y
2019-03-11	850836	42-163-34183	SHINER RANCH #105V	BLACKBRUSH O & G, LLC	DRILL	7,700
2019-03-08	850773	42-163-34182	MONTE LENOSO #D 1EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,500	Y
2019-03-01	850355	42-163-34181	MCWILLIAMS-O'NEILL EF #1H	VIRTEX OPERATING COMPANY, INC.	DRILL	7,500	Y
2019-02-26	850234	42-163-34180	MCWILLIAMS-SOT-SARTAIN EF #1H	VIRTEX OPERATING COMPANY, 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.