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
2012-10-26	750370	42-507-32949	SOLIZ #1V	SANCHEZ OIL & GAS CORPORATION	DRILL	7,100
2012-10-25	745072	42-507-32951	MURPHY #4H	DAWSEY OPERATING COMPANY	DRILL	4,500	Y
2012-10-19	749682	42-507-32945	PETRO PARDS #4H	SANCHEZ OIL & GAS CORPORATION	DRILL	7,000	Y
2012-10-18	749819	42-507-32948	TIDWELL EAST ZAV #A 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-10-18	749819	42-507-32948	TIDWELL EAST ZAV #A 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-10-18	749800	42-507-32946	TIDWELL EAST ZAV #D 3H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-10-18	749798	42-507-32947	TIDWELL EAST ZAV #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-10-18	749798	42-507-32947	TIDWELL EAST ZAV #D 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-10-18	747614	42-507-32938	WATKINS, ROSS C #10	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747602	42-507-32937	WATKINS, ROSS C #9	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747598	42-507-32936	WATKINS, ROSS C #8	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747594	42-507-32935	WATKINS, ROSS C #7	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747135	42-507-32932	WATKINS, ROSS C. #6	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747132	42-507-32931	WATKINS, ROSS C. #5	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-18	747129	42-507-32929	WATKINS, ROSS C. #3	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-17	749698	42-507-32944	HALEY-TARH #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	12,500	Y
2012-10-17	749698	42-507-32944	HALEY-TARH #1H	TEXAS AMERICAN RESOURCES COMPANY	DRILL	7,500	Y
2012-10-17	749625	42-507-32943	MARK & SANDRA #3H	SANCHEZ OIL & GAS CORPORATION	DRILL	8,400	Y
2012-10-16	749388	42-507-32942	RIO NUECES #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2012-10-16	749388	42-507-32942	RIO NUECES #1	CML EXPLORATION, LLC	DRILL	6,700	Y
2012-10-12	747131	42-507-32930	WATKINS, ROSS C. #4	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-10-09	749204	42-507-30097	CARNES FARMS, INC. #1RB	JL RESOURCES, LLC	RENTR	2,250
2012-10-09	749204	42-507-30097	CARNES FARMS, INC. #1RB	JL RESOURCES, LLC	RENTR	2,250
2012-10-09	749178	42-507-32941	PETRO PARDS #3H	SANCHEZ OIL & GAS CORPORATION	DRILL	7,500	Y
2012-09-27	748420	42-507-32940	HUBER ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-09-19	747852	42-507-32939	CORNETT #1	CML EXPLORATION, LLC	DRILL	6,600	Y
2012-09-19	747852	42-507-32939	CORNETT #1	CML EXPLORATION, LLC	DRILL	6,600	Y
2012-09-19	747852	42-507-32939	CORNETT #1	CML EXPLORATION, LLC	DRILL	6,600	Y
2012-09-17	747677	42-507-32934	PICKENS ZAV #E 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-09-17	747124	42-507-32928	WATKINS, ROSS C. #2	NAILS OPERATING COMPANY LLC	DRILL	4,000
2012-09-11	745500	42-507-32927	J.R. RAINE #9	BRIDGER OIL INC.	DRILL	4,000
2012-09-07	747351	42-507-32926	STUART PERLITZ RANCH #103M	CABOT OIL & GAS CORPORATION	DRILL	11,500
2012-09-07	747128	42-507-32924	KIEFER, CHESTER #35	BOLLINGER DRILLING CO.	DRILL	1,000
2012-09-07	747126	42-507-32925	KIEFER, CHESTER #34	BOLLINGER DRILLING CO.	DRILL	1,000
2012-09-05	743152	42-507-32916	TIDWELL EAST ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-09-05	743152	42-507-32916	TIDWELL EAST ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-08-31	747029	42-507-32923	HEITZ-FEHRENBACH UNIT #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	13,800	Y
2012-08-31	747029	42-507-32923	HEITZ-FEHRENBACH UNIT #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	13,800	Y
2012-08-13	742185	42-507-32912	LAZY ASS RANCH #1	HURD ENTERPRISES, LTD.	DRILL	5,500
2012-08-06	745262	42-507-32922	FERGUSON-MCKNIGHT #5263H	NEWFIELD EXPLORATION COMPANY	DRILL	7,000	Y
2012-07-27	744967	42-507-32921	RUBIES DREAM UNIT ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-07-27	744967	42-507-32921	RUBIES DREAM UNIT ZAV #A 1H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-07-27	744963	42-507-32920	RUBIES DREAM UNIT B ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-07-27	744963	42-507-32920	RUBIES DREAM UNIT B ZAV #A 4H	CHESAPEAKE OPERATING, INC.	DRILL	9,000	Y
2012-07-25	744821	42-507-32919	FLORES #1H	HUGHES, DAN A. COMPANY, L.P.	DRILL	13,000	Y
2012-07-25	744821	42-507-32919	FLORES #1H	TEXAS AMERICAN RESOURCES COMPANY	DRILL	13,000	Y
2012-07-25	744821	42-507-32919	FLORES #1H	TEXAS AMERICAN RESOURCES COMPANY	DRILL	8,400	Y
2012-07-19	744351	42-507-32918	PICKWILL #1	CML EXPLORATION, LLC	DRILL	7,000	Y
2012-07-19	744351	42-507-32918	PICKWILL #1	CML EXPLORATION, LLC	DRILL	7,000	Y
2012-06-29	743259	42-507-32917	PRYOR RANCH #6A	MCDAY ENERGY CORP.	DRILL	6,000

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