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
2013-04-19	760893	42-507-32990	KM SOUTH ZAV #B 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-19	760870	42-507-32989	MUSTANG RANCH UNIT #1H	U.S. ENERCORP, LTD.	DRILL	9,000	Y
2013-04-04	759873	42-507-32987	DAY RANCH ZAV #B 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-04-01	759658	42-507-32986	BILL WILSON ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-03-28	759154	42-507-32985	KM SOUTH ZAV #B 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-03-18	758654	42-507-32984	KM SOUTH ZAV #B 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-03-11	758180	42-507-32983	BEELER #2H	CRIMSON EXPLORATION OPER., INC.	DRILL	7,250	Y
2013-03-07	757966	42-507-32981	WINTERBOTHAM ZAV #G 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-03-04	757685	42-507-32980	LOMA VISTA ZAV #E 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-02-28	757368	42-507-32979	DAVID HOLDSWORTH #8	ALAMO OPERATING COMPANY, L. C.	DRILL	5,000
2013-02-28	757368	42-507-32979	DAVID HOLDSWORTH #8E	ALAMO OPERATING COMPANY, L. C.	DRILL	5,000
2013-02-27	757416	42-507-32978	HOWETT UNIT ZAV #G 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-02-27	757416	42-507-32978	HOWETT UNIT ZAV #G 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-02-22	720600	42-507-32804	MURPHY #2	DAWSEY OPERATING COMPANY	DRILL	4,500
2013-02-20	756853	42-507-32977	BILL WILSON ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-02-14	756324	42-507-32975	FERGUSON-MCKNIGHT #5333	NEWFIELD EXPLORATION COMPANY	DRILL	7,000
2013-01-31	755624	42-507-32974	COLEMAN #1H	BUFFCO PRODUCTION INC.	DRILL	12,000	Y
2013-01-29	755422	42-507-32973	STUART-PERLITZ RANCH #102H	CABOT OIL & GAS CORPORATION	DRILL	16,000	Y
2013-01-25	755103	42-507-32972	KINGSBERY #1H	STRAND ENERGY, L.C.	DRILL	6,000	Y
2013-01-23	754950	42-507-32971	STUART-PERLITZ RANCH #103H	CABOT OIL & GAS CORPORATION	DRILL	17,000	Y
2013-01-17	754552	42-507-32970	FELPS #2H	STRAND ENERGY, L.C.	DRILL	6,000	Y
2013-01-15	754413	42-507-32969	WINTERBOTHAM ZAV #E 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-01-15	754413	42-507-32969	WINTERBOTHAM ZAV #E 5H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2013-01-14	754328	42-507-32878	RANCHO RINCON #1	STRAND ENERGY, L.C.	RECOMP	5,900
2013-01-10	754109	42-507-32968	MARPICK #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-01-10	754109	42-507-32968	MARPICK #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-01-07	754020	42-507-32967	ANNPICK #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-01-07	754020	42-507-32967	ANNPICK #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-01-07	754020	42-507-32967	ANNPICK #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2013-01-03	753816	42-507-32966	POWELL #1H	BUFFCO PRODUCTION INC.	DRILL	8,500	Y
2013-01-03	753816	42-507-32966	POWELL #1H	BUFFCO PRODUCTION INC.	DRILL	8,500	Y
2012-12-18	752268	42-507-32964	BUCHANAN #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	13,000	Y
2012-12-18	752195	42-507-32965	RAINE #1	HURD ENTERPRISES, LTD.	DRILL	5,500
2012-12-05	751956	42-507-32963	MILLS #1H	SAGE ENERGY COMPANY	DRILL	12,000	Y
2012-11-30	751749	42-507-32962	KIEFER, CHESTER #38	BOLLINGER DRILLING CO.	DRILL	1,000
2012-11-26	751696	42-507-32961	KIEFER, CHESTER #37	BOLLINGER DRILLING CO.	DRILL	1,000
2012-11-20	751490	42-507-32957	KRAWETZ #1H	U.S. ENERCORP, LTD.	DRILL	6,863	Y
2012-11-19	751563	42-507-32958	HALEY #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	12,500	Y
2012-11-19	751563	42-507-32958	HALEY #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	12,500	Y
2012-11-16	751462	42-507-32960	WINTERBOTHAM ZAV #E 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-11-16	751462	42-507-32960	WINTERBOTHAM ZAV #E 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-11-16	751457	42-507-32959	WINTERBOTHAM ZAV #E 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-11-16	751457	42-507-32959	WINTERBOTHAM ZAV #E 2H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-11-09	750588	42-507-32955	MURPHY #2H	DAWSEY OPERATING COMPANY	DRILL	4,500	Y
2012-11-02	750525	42-507-32956	DUNKLE #2	CML EXPLORATION, LLC	DRILL	6,700	Y
2012-11-02	750525	42-507-32956	DUNKLE #2	CML EXPLORATION, LLC	DRILL	5,992	Y
2012-10-30	750505	42-507-32954	CROSSROADS #3	RAQII LLC	DRILL	4,000
2012-10-30	750504	42-507-32953	CROSSROADS #2	RAQII LLC	DRILL	4,000
2012-10-30	750503	42-507-32952	CROSSROADS #1	RAQII LLC	DRILL	4,000
2012-10-29	750351	42-507-32950	WOODBURY #1V	SANCHEZ OIL & GAS CORPORATION	DRILL	7,100

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