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
2023-03-13	888936	42-507-33494	KM RANCH A ALLOCATION 3 #106H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2023-03-13	888931	42-507-33493	KM RANCH A ALLOCATION 2 #105H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2023-03-13	888929	42-507-33492	KM RANCH A ALLOCATION 1 #104H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2023-03-06	888597	42-507-33491	HARKEY #1	HAMILTON, CLAY	DRILL	5,200
2023-02-06	886958	42-507-33109	BRUCE WEAVER #2RE	CML EXPLORATION, LLC	RECOMP	7,000	Y
2023-02-06	886958	42-507-33109	BRUCE WEAVER #2RE	CML EXPLORATION, LLC	RECOMP	7,000	Y
2023-01-04	886940	42-507-33388	FERGUSON-MCKNIGHT #2761H	EL TORO RESOURCES LLC	DRILL	6,100	Y
2023-01-04	886940	42-507-33388	FERGUSON-MCKNIGHT #2761H	EL TORO RESOURCES LLC	DRILL	6,100	Y
2022-12-22	886568	42-507-33490	WINTERBOTHAM ZAV #R 2HR	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-12-22	886554	42-507-33489	WINTERBOTHAM ZAV #U 3HR	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-12-13	886271	42-507-33488	GLASSCOCK RANCH C #E114H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-13	886269	42-507-33487	GLASSCOCK RANCH C #113H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-13	886267	42-507-33486	GLASSCOCK RANCH C #E112H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-13	886263	42-507-33485	GLASSCOCK RANCH C #E111H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-02	885870	42-507-33484	GLASSCOCK RANCH C #D110H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-02	885869	42-507-33483	GLASSCOCK RANCH C #D109H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-12-02	885868	42-507-33482	GLASSCOCK RANCH C #D108H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-10-28	885233	42-507-32862	TEXRON-HOWETT #5	BUFFCO PRODUCTION INC.	RECOMP	5,200
2022-10-28	885233	42-507-32862	TEXRON-HOWETT #5	BUFFCO PRODUCTION INC.	RECOMP	5,200
2022-09-30	883648	42-507-33480	TIDWELL UNIT #1H	ETOCO, L.P.	DRILL	6,200	Y
2022-09-23	883254	42-507-33008	DIAL #1ST	CML EXPLORATION, LLC	RECOMP	6,550	Y
2022-09-23	883254	42-507-33008	DIAL #1ST	CML EXPLORATION, LLC	RECOMP	6,550	Y
2022-09-13	883841	42-507-33481	HOWETT SWD #1	BUFFCO PRODUCTION INC.	DRILL	5,000
2022-09-08	883437	42-507-33418	CENIZO A #127H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-08	883437	42-507-33418	CENIZO A #127H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-08	883435	42-507-33417	CENIZO A #126H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-08	883428	42-507-33416	CENIZO A #125H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-02	883440	42-507-33478	CENIZO A #129H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-02	883440	42-507-33478	CENIZO A #129H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-02	883438	42-507-33477	CENIZO A #128H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-09-02	883438	42-507-33477	CENIZO A #128H	TRINITY OPERATING (USG), LLC	DRILL	8,000	Y
2022-08-25	883157	42-507-33476	TRAYLOR NORTH #3H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-25	883149	42-507-33475	TRAYLOR NORTH #C 3H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-25	883143	42-507-33474	TRAYLOR NORTH #C 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-15	882909	42-507-33473	TRAYLOR NORTH #B 4H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-15	882908	42-507-33472	TRAYLOR NORTH #B 3H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-05	882401	42-507-33471	TRAYLOR NORTH #B 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-08-05	882399	42-507-33470	TRAYLOR NORTH #B 1H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-07-08	881875	42-507-33469	WWM FAMILY PARTNERSHIP #1	HAMILTON, CLAY	DRILL	4,700
2022-06-21	880943	42-507-33468	WILSON-GATES-COGGINS-POWELL #2H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-21	880943	42-507-33468	WILSON-GATES-COGGINS-POWELL-A #2H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-09	880722	42-507-33466	COSMED UNIT ZAV E #5H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-06-09	880721	42-507-33465	COSMED UNIT ZAV D #4H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-06-09	880719	42-507-33464	COSMED UNIT ZAV C #3H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-06-09	880600	42-507-33467	TRAYLOR SOUTH ZAV #A 2H	EXCO OPERATING COMPANY, LP	DRILL	7,000	Y
2022-06-07	880751	42-507-33462	STCH-JOHNSON #4H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-07	880751	42-507-33462	STCH-JOHNSON #4H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-07	880729	42-507-33463	STCH-JOHNSON #3H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-07	880729	42-507-33463	STCH-JOHNSON #3H	BUFFCO PRODUCTION INC.	DRILL	9,000	Y
2022-06-01	880492	42-507-33461	WILSON-GATES-COGGINS-POWELL #1H	BUFFCO PRODUCTION 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.