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
2019-11-25	859316	42-507-33378	COMMERCE UNIT ZAV B #2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-11-21	859120	42-507-33377	KM NORTH ZAV #A 6H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-11-21	859119	42-507-33376	TRAYLOR WEST ZAV #B 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-09-17	856915	42-507-33372	COLEMAN ZAV D #4H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-09-16	857019	42-507-33374	PRIEST-TRINKLE #4H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-09-16	857017	42-507-33373	PRIEST-TRINKLE #3H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-09-11	856863	42-507-33371	FERGUSON-MCKNIGHT #2763H	EL TORO RESOURCES LLC	DRILL	6,100	Y
2019-08-28	856475	42-507-33338	ANNA LOUISA #1	CML EXPLORATION, LLC	RECOMP	7,400	Y
2019-08-26	855701	42-507-33367	COMMERCE UNIT ZAV B #4H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-08-23	855775	42-507-33369	COLEMAN UNIT ZAV E #2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-08-13	856085	42-507-33370	LACKEY FIVE #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2019-08-05	855770	42-507-33368	PRIEST-TRINKLE #2H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-08-05	855770	42-507-33368	PRIEST-TRINKLE #2H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-07-17	855027	42-507-33366	PRIEST-TRINKLE #1H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-07-17	855027	42-507-33366	PRIEST-TRINKLE #1H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-07-02	854721	42-507-33365	COLEMAN UNIT ZAV E #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-06-26	854465	42-507-33364	KLEIMANN #3	CML EXPLORATION, LLC	DRILL	7,900	Y
2019-06-26	854401	42-507-33363	KM-COMMERCE UNIT ZAV #2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-06-20	854315	42-507-33362	KM-COMMERCE UNIT ZAV #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-06-19	854297	42-507-33361	KM SOUTH ZAV #B 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-06-19	854258	42-507-33360	KM SOUTH ZAV #B 1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-06-19	854258	42-507-33360	KM SOUTH ZAV #B 1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-04-26	852418	42-507-33359	WINTERBOTHAM-TN UNIT ZAV #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-04-24	852353	42-507-33358	PRYOR/LUBY #1	MORTIMER PRODUCTION COMPANY	DRILL	4,000
2019-04-24	852258	42-507-33357	TRAYLOR SOUTH ZAV #E 1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-04-22	852224	42-507-33356	SOLA VACA NORTE #A 6EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,000	Y
2019-04-22	852224	42-507-33356	SOLA VACA NORTE #A 6EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	5,447	Y
2019-04-22	852222	42-507-33355	SOLA VACA NORTE #A 5EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	6,000	Y
2019-04-22	852222	42-507-33355	SOLA VACA NORTE #A 5EF	U.S. ENERGY DEVELOPMENT CORP	DRILL	5,414	Y
2019-04-18	851937	42-507-33281	PARKWAY #1	CML EXPLORATION, LLC	RECOMP	7,200	Y
2019-04-18	851937	42-507-33281	PARKWAY #1	CML EXPLORATION, LLC	RECOMP	7,200	Y
2019-04-17	846798	42-507-33340	EILEEN #1	CML EXPLORATION, LLC	DRILL	7,400	Y
2019-04-17	846798	42-507-33340	EILEEN #1	CML EXPLORATION, LLC	DRILL	7,400	Y
2019-04-10	851749	42-507-33354	TS-WINTERBOTHAM UNIT ZAV #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-04-10	851749	42-507-33354	TS-WINTERBOTHAM UNIT ZAV #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-03-21	851276	42-507-33352	TRAYLOR SOUTH ZAV #F 2H	EXCO OPERATING COMPANY, LP	DRILL	8,000	Y
2019-03-21	851266	42-507-33353	WINTERBOTHAM ZAV #P 1H	EXCO OPERATING COMPANY, LP	DRILL	8,000	Y
2019-03-15	851015	42-507-33351	WINTERBOTHAM ZAV #L 1H	EXCO OPERATING COMPANY, LP	DRILL	8,000	Y
2019-02-28	850295	42-507-33350	JOHNSON, B. K.. #1A	DEWBRE PETROLEUM CORPORATION	DRILL	2,000
2019-02-26	850084	42-507-33349	ROBERT WALKER UNIT ZAV B #3H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-02-26	850083	42-507-33348	ROBERT WALKER UNIT ZAV B #2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2019-01-23	848939	42-507-32939	CORNETT #1	CML EXPLORATION, LLC	RECOMP	6,159
2019-01-17	848753	42-507-33347	STCH-JOHNSON #2H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-01-16	848646	42-507-33346	AARON #1	CML EXPLORATION, LLC	DRILL	7,300	Y
2019-01-14	848530	42-507-33345	STCH-JOHNSON #1H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2019-01-10	848417	42-507-32901	FLOWER #1	CML EXPLORATION, LLC	RECOMP	6,200	Y
2019-01-10	848416	42-507-33332	BUCK #1	CML EXPLORATION, LLC	RECOMP	6,840	Y
2018-12-31	848081	42-507-33344	WINTERBOTHAM-COMMERCE UNIT #2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2018-12-31	848044	42-507-33343	WINTERBOTHAM-COMMERCE UNIT #1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2018-12-31	847148	42-507-33342	HOWETT ZAV #F 1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y

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