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
1
Operators (30d)
1
Latest Permit
2026-07-10
All Time
3,561
3,561 permits
| ISSUED | PERMIT | API | LEASE | OPERATOR | TYPE | DEPTH | HZ |
|---|---|---|---|---|---|---|---|
| 1994-07-07 | 425653 | 42-507-32498 | CASSIN #1 | GENESIS PRODUCING COMPANY | DRILL | 3,400 | |
| 1994-06-23 | 425217 | 42-507-32409 | BIG WELLS (SAN MIGUEL) UNIT #6002 | ORYX ENERGY COMPANY | RECOMP | 6,100 | |
| 1994-06-10 | 424791 | 42-507-32376 | BIG WELLS (SAN MIGUEL)UNIT #508 | ORYX ENERGY COMPANY | RECOMP | 5,450 | |
| 1994-06-10 | 424791 | 42-507-32376 | BIG WELLS (SAN MIGUEL)UNIT #508 | FLINT OAK ENERGY, LLC | RECOMP | 6,000 | |
| 1994-05-16 | 423940 | 42-507-32496 | BRISCOE RANCH #3031 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1994-05-13 | 423931 | 42-507-32405 | GARNER, JOHN N. #13 | ORYX ENERGY COMPANY | RECOMP | 7,000 | Y |
| 1994-04-18 | 422915 | 42-507-32495 | HUISACHE #1 | CHI OPERATING, INC. | DRILL | 4,000 | |
| 1994-04-11 | 422850 | 42-507-32325 | BAGGETT, JOHN B. -B- #1 | ORYX ENERGY COMPANY | RECOMP | 7,000 | Y |
| 1994-04-07 | 422794 | 42-507-32343 | FROST NATIONAL BANK #4002 | ORYX ENERGY COMPANY | RECOMP | 7,000 | Y |
| 1994-03-28 | 422519 | 42-507-32494 | BOOTH, L.W. #9 | ORYX ENERGY COMPANY | DRILL | 6,500 | Y |
| 1994-03-17 | 422132 | 42-507-32376 | JONES, E.B. -A- #1 | ORYX ENERGY COMPANY | RECOMP | 6,250 | |
| 1994-03-07 | 421769 | 42-507-32352 | PORTER, FLOYD #2 | ORYX ENERGY COMPANY | RECOMP | 6,850 | Y |
| 1994-02-24 | 421473 | 42-507-32493 | BOOTH, L.W. #8 | ORYX ENERGY COMPANY | DRILL | 6,250 | Y |
| 1994-02-18 | 421292 | 42-507-32481 | ANGELA #2 | WINN EXPLORATION CO., INC. | RECOMP | 6,700 | Y |
| 1994-02-15 | 421164 | 42-507-32492 | LEE RANCH #D101 | E-COR, INC. | DRILL | 1,800 | |
| 1994-02-03 | 420793 | 42-507-32286 | BIG WELLS (SAN MIGUEL) UNIT #203 | ORYX ENERGY COMPANY | RECOMP | 6,300 | |
| 1994-01-21 | 420254 | 42-507-31368 | KINCAID, ET AL #1 | SOUTHERN ROYALTY INC. | RENTR | 2,500 | |
| 1994-01-18 | 420279 | 42-507-32443 | DAY, R. B. #2 | ORYX ENERGY COMPANY | RECOMP | 5,980 | |
| 1994-01-11 | 419975 | 42-507-31713 | MATTHEWS #4013 | SPILLER, ROBERT S. | RECOMP | 1,975 | |
| 1993-12-20 | 419073 | 42-507-30390 | H & F PROPERTIES #4 | HARVEY BROTHERS OIL & GAS | RENTR | 4,500 | |
| 1993-12-16 | 419410 | 42-507-32491 | BOOTH, L. W. #6 | ORYX ENERGY COMPANY | DRILL | 6,200 | Y |
| 1993-12-15 | 419345 | 42-507-31908 | PRYOR RANCH #182 | WINN EXPLORATION CO., INC. | RECOMP | 3,156 | |
| 1993-12-10 | 419045 | 42-507-32484 | MATTHEWS MINERAL #108 | SPILLER, ROBERT S. | DRILL | 2,000 | |
| 1993-12-10 | 419043 | 42-507-32490 | BRISCOE RANCH #2059 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1993-12-10 | 419042 | 42-507-32489 | BRISCOE RANCH #1059 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1993-12-10 | 419040 | 42-507-32488 | BRISCOE RANCH #2051 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1993-12-10 | 419038 | 42-507-32487 | BRISCOE RANCH #1050 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1993-12-10 | 419035 | 42-507-32485 | MATTHEWS MINERAL #1034 | SPILLER, ROBERT S. | DRILL | 2,500 | |
| 1993-12-09 | 419037 | 42-507-32486 | MATTHEWS MINERAL #1015 | SPILLER, ROBERT S. | DRILL | 2,500 | |
| 1993-10-27 | 417573 | 42-507-32406 | LAISTER, HUBERT #1 | ORYX ENERGY COMPANY | RENTR | 4,700 | |
| 1993-10-08 | 416893 | 42-507-32483 | LEE RANCH #4 | TEXAS SOUTHERN RESOURCES, INC. | DRILL | 800 | |
| 1993-10-08 | 416892 | 42-507-32482 | LEE RANCH #3 | TEXAS SOUTHERN RESOURCES, INC. | DRILL | 1,000 | |
| 1993-10-01 | 416614 | 42-507-32481 | ANGELA #2 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1993-09-01 | 415442 | 42-507-32462 | OPPENHEIMER #1 | MORTIMER EXPLORATION COMPANY | RECOMP | 2,850 | |
| 1993-08-17 | 414908 | 42-507-30013 | JONES, E.B. #2D | ORYX ENERGY COMPANY | RECOMP | 5,410 | |
| 1993-08-11 | 414714 | 42-507-32480 | FROST NATIONAL BANK, TR. #1 | CARDIN, M. O. | DRILL | 5,000 | |
| 1993-06-09 | 412346 | 42-507-32455 | PICKENS RANCH #1 H | COLUMBIA GAS DEVELOPMENT CORP. | DRILL | 7,000 | Y |
| 1993-06-03 | 412417 | 42-507-32479 | BOOTH, LLOYD W. #5 | ORYX ENERGY COMPANY | DRILL | 6,500 | Y |
| 1993-05-14 | 411714 | 42-507-32353 | BRISCOE-PETTY #3 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 6,500 | Y |
| 1993-05-10 | 411311 | 42-507-32477 | CHAPPAROSA 7 #1 | GENESIS PRODUCING COMPANY | DRILL | 8,800 | |
| 1993-05-06 | 411448 | 42-507-32478 | BUCHANAN UNIT #1 | ORYX ENERGY COMPANY | DRILL | 6,500 | Y |
| 1993-04-20 | 410900 | 42-507-32476 | LINVEST-LEE #01 | TEXAS SOUTHERN RESOURCES, INC. | DRILL | 2,000 | |
| 1993-04-15 | 410772 | 42-507-32475 | HEITZ-BABCOCK UNIT #1 | ORYX ENERGY COMPANY | DRILL | 6,530 | Y |
| 1993-04-02 | 410458 | 42-507-32474 | PRYOR, K. #2 | GENESIS PRODUCING COMPANY | DRILL | 3,000 | |
| 1993-03-26 | 410219 | 42-507-32473 | BUCHANAN, JOHN F. -A- #4 | ORYX ENERGY COMPANY | DRILL | 9,482 | Y |
| 1993-03-26 | 410219 | 42-507-32473 | BUCHANAN, JOHN F. -A- #4 | ORYX ENERGY COMPANY | DRILL | 6,300 | Y |
| 1993-03-17 | 409120 | 42-507-32470 | PESCADO #1 | GENESIS PRODUCING COMPANY | DRILL | 2,700 | |
| 1993-03-05 | 409578 | 42-507-32406 | LASITER, HUBERT #1 | ORYX ENERGY COMPANY | RECOMP | 6,620 | Y |
| 1993-03-01 | 409054 | 42-507-32472 | PICKENS RANCH #2 | COLUMBIA GAS DEVELOPMENT CORP. | DRILL | 7,000 | Y |
| 1993-02-24 | 409288 | 42-507-32444 | BRISCOE-PETTY #5 | UNION PACIFIC RESOURCES COMPANY | DRILL | 11,500 | Y |
Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Zavala County.