Zavala County Drilling Permits

Every permit issued by the Texas Railroad Commission in Zavala County — updated daily, data through 2026-07-10.

Zavala County permitting is running 3.3 permits a month over the trailing 90 days (10 total, versus 6 in the prior quarter). CML EXPLORATION, LLC leads with 7 permits in the past 12 months, one of 6 operators active in the county.

Last 30 Days

Operators (30d)

Latest Permit

2026-07-10

All Time

3,561

3,561 permits

ISSUED	PERMIT	API	LEASE	OPERATOR	TYPE	DEPTH	HZ
2011-11-09	727725	42-507-32847	TRAYLOR WEST ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-08	727606	42-507-32845	TRAYLOR SOUTH ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-08	727606	42-507-32845	TRAYLOR SOUTH ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-08	727606	42-507-32845	TRAYLOR SOUTH ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-08	727606	42-507-32845	TRAYLOR SOUTH ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-08	727606	42-507-32845	TRAYLOR SOUTH ZAV #A 4H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2011-11-07	727587	42-507-32844	TRAYLOR SOUTH ZAV #B 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-07	727587	42-507-32844	TRAYLOR SOUTH ZAV #B 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-11-07	727286	42-507-32846	KM RANCH #2H	CRIMSON EXPLORATION OPER., INC.	DRILL	6,700	Y
2011-10-28	726781	42-507-32843	KEIFER, CHESTER #33	REGENCY ENERGY, INC.	DRILL	1,000
2011-10-28	726780	42-507-32842	KEIFER, CHESTER #32	REGENCY ENERGY, INC.	DRILL	1,000
2011-10-26	726788	42-507-32841	PICKENS ZAV #C 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-10-21	726463	42-507-32839	FERGUSON-MCKNIGHT #5273H	NEWFIELD EXPLORATION COMPANY	DRILL	7,200	Y
2011-10-20	726476	42-507-32838	PRITCHETT #1	CML EXPLORATION, LLC	DRILL	4,300
2011-10-20	726476	42-507-32838	PRITCHETT #1	CML EXPLORATION, LLC	DRILL	4,300
2011-10-17	725096	42-507-32833	MATTHEWS #2H	DAWSEY OPERATING COMPANY	DRILL	5,500	Y
2011-10-13	725481	42-507-32837	TRAYLOR NORTH #F 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-10-11	725946	42-507-32836	TRAYLOR NORTH #C 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-10-11	725813	42-507-32835	FERGUSON-MCKNIGHT #5272H	NEWFIELD EXPLORATION COMPANY	DRILL	7,200	Y
2011-10-04	725509	42-507-32834	TRAYLOR NORTH #F 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-09-30	725245	42-507-32832	HABY #1	CML EXPLORATION, LLC	DRILL	6,800	Y
2011-09-30	725245	42-507-32832	HABY #1	CML EXPLORATION, LLC	DRILL	6,800	Y
2011-09-29	725125	42-507-32831	FERGUSON-MCKNIGHT #5271H	NEWFIELD EXPLORATION COMPANY	DRILL	7,200	Y
2011-09-23	724689	42-507-32830	MARK & SANDRA #1	SANCHEZ OIL & GAS CORPORATION	DRILL	7,000
2011-09-23	724689	42-507-32830	MARK & SANDRA #1	SANCHEZ OIL & GAS CORPORATION	DRILL	8,000
2011-09-23	724689	42-507-32830	MARK & SANDRA #1	SANCHEZ OIL & GAS CORPORATION	DRILL	8,000
2011-09-21	721609	42-507-32829	TRAYLOR SOUTH ZAV #F 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-09-14	724051	42-507-32828	HEITZ #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	12,500	Y
2011-09-14	724051	42-507-32828	HEITZ #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	11,750	Y
2011-09-09	723792	42-507-32827	WINTERBOTHAM ZAV #C 8H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-09-09	723622	42-507-32825	BEELER #1H	CRIMSON EXPLORATION OPER., INC.	DRILL	7,150	Y
2011-09-09	723622	42-507-32825	BEELER #1H	CRIMSON EXPLORATION OPER., INC.	DRILL	7,150	Y
2011-09-08	723656	42-507-32823	TRAYLOR WEST ZAV #C 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-09-08	723655	42-507-32824	TRAYLOR WEST ZAV #C 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-09-01	723278	42-507-32819	TRAYLOR SOUTH ZAV #F 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-08-31	723179	42-507-32820	TRAYLOR WEST ZAV #G 4H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-31	723174	42-507-32821	TRAYLOR WEST ZAV #G 1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-31	723174	42-507-32821	TRAYLOR WEST ZAV G #1H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2011-08-30	723113	42-507-32818	WINTERBOTHAM ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-08-17	722296	42-507-32816	BAYOU ROUGE UNIT I ZAV #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-17	722296	42-507-32816	BAYOU ROUGE UNIT I ZAV #1H	CHESAPEAKE OPERATING, INC.	DRILL	12,000	Y
2011-08-17	722278	42-507-32815	SOLANSKY #1	CML EXPLORATION, LLC	DRILL	6,800	Y
2011-08-17	722278	42-507-32815	SOLANSKY #1	CML EXPLORATION, LLC	DRILL	6,800	Y
2011-08-17	722278	42-507-32815	SOLANSKY #1	CML EXPLORATION, LLC	DRILL	6,800	Y
2011-08-11	721898	42-507-32814	WINTERBOTHAM ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-08-05	721509	42-507-32812	HARGROVE #3	SANCHEZ OIL & GAS CORPORATION	DRILL	8,000
2011-07-29	721162	42-507-32811	TRAYLOR NORTH #A 6H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-07-29	721159	42-507-32810	TRAYLOR NORTH #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-07-29	721157	42-507-32809	TRAYLOR NORTH #A 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2011-07-29	721084	42-507-32719	CHAPARROSA 'A' #1H	ESPADA OPERATING LLC	RECOMP	5,600	Y

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