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
2013-07-31	767362	42-507-33027	TRAYLOR SOUTH ZAV #G 3H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-07-31	767361	42-507-33026	TRAYLOR SOUTH ZAV #G 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-07-31	767361	42-507-33026	TRAYLOR SOUTH ZAV #G 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-07-31	767361	42-507-33026	TRAYLOR SOUTH ZAV #G 2H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-07-26	767040	42-507-33025	TRAYLOR SOUTH ZAV #G 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-07-26	767040	42-507-33025	TRAYLOR SOUTH ZAV #G 1H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-07-11	766234	42-507-33024	FERGUSON-MCKNIGHT #5265	NEWFIELD EXPLORATION COMPANY	DRILL	7,000
2013-07-09	765803	42-507-33023	PFEIFFER #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-07-09	765803	42-507-33023	PFEIFFER #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-07-02	765386	42-507-33020	BEELER #3H	CRIMSON EXPLORATION OPER., INC.	DRILL	7,200	Y
2013-07-01	765591	42-507-33022	DUAL ZONE #2	TX ENERGY SERVICES, LLC	DRILL	7,385
2013-06-27	765417	42-507-33021	DAVID HOLDSWORTH #6	ALAMO OPERATING COMPANY, L. C.	DRILL	5,000
2013-06-27	765417	42-507-33021	DAVID HOLDSWORTH #6	ALAMO OPERATING COMPANY, L. C.	DRILL	5,000
2013-06-26	765013	42-507-33019	LISA #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-06-26	765013	42-507-33019	LISA #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-06-14	764387	42-507-33018	ROBERT WALKER ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-06-14	764352	42-507-33017	TRAYLOR SOUTH ZAV #H 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-06-14	764352	42-507-33017	TRAYLOR SOUTH ZAV #H 5H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-06-14	764349	42-507-33016	TRAYLOR SOUTH ZAV #H 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-06-14	764349	42-507-33016	TRAYLOR SOUTH ZAV #H 4H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-06-14	764344	42-507-33015	TRAYLOR SOUTH ZAV #H 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-06-14	764344	42-507-33015	TRAYLOR SOUTH ZAV #H 3H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-06-14	764342	42-507-33014	TRAYLOR SOUTH ZAV #H 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-06-14	764342	42-507-33014	TRAYLOR SOUTH ZAV #H 2H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-05-29	763274	42-507-33013	TRAYLOR SOUTH ZAV #B 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-28	763201	42-507-33012	HOWETT UNIT B ZAV #G 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-17	762746	42-507-33011	TRAYLOR SOUTH ZAV #F 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-17	762739	42-507-33010	TRAYLOR SOUTH ZAV #F 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-16	762270	42-507-33006	RICHTER UNIT C ZAV #1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-14	762552	42-507-33009	PRYOR RANCH #7A	MCDAY ENERGY CORP.	DRILL	9,000
2013-05-14	762552	42-507-33009	PRYOR RANCH #7A	MCDAY ENERGY CORP.	DRILL	9,000
2013-05-14	762473	42-507-33008	DIAL #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-05-14	762473	42-507-33008	DIAL #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-05-10	762290	42-507-33007	RONALD #1	CML EXPLORATION, LLC	DRILL	5,000
2013-05-03	761916	42-507-33004	LLM ZAV #D 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761915	42-507-33003	LLM ZAV #D 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761908	42-507-33005	WINTERBOTHAM ZAV #K 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761903	42-507-33002	LLM ZAV #B 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761900	42-507-33001	LLM ZAV #B 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761900	42-507-33001	LLM ZAV #B 2H	EXCO OPERATING COMPANY, LP	DRILL	9,000	Y
2013-05-03	761895	42-507-33000	LLM ZAV #B 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761888	42-507-32999	DAY RANCH ZAV #G 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-05-03	761631	42-507-32998	HOWETT ZAV #D 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-29	761500	42-507-32997	WINTERBOTHAM ZAV #H 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-29	761500	42-507-32997	WINTERBOTHAM ZAV #H 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-29	761474	42-507-32994	WINTERBOTHAM ZAV #H 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-29	761474	42-507-32994	WINTERBOTHAM ZAV #H 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-24	761185	42-507-32993	LOMA VISTA ZAV #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-24	761110	42-507-32992	WINTERBOTHAM ZAV #L 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-23	761020	42-507-32991	KM SOUTH ZAV #B 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y

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