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 |
|---|---|---|---|---|---|---|---|
| 1990-10-19 | 379851 | 42-507-32386 | LITTLE, J. ET AL #3 | ORYX ENERGY COMPANY | DRILL | 9,850 | Y |
| 1990-10-19 | 379851 | 42-507-32386 | J. LITTLE ET AL UNIT #3 | ORYX ENERGY COMPANY | DRILL | 9,850 | Y |
| 1990-10-19 | 379851 | 42-507-32386 | LITTLE, J. ET AL #3 | ORYX ENERGY COMPANY | DRILL | 9,964 | Y |
| 1990-10-19 | 379789 | 42-507-32385 | WEAVER, BRUCE D. #1 | TEX-HEX CORP. | DRILL | 9,368 | Y |
| 1990-10-19 | 379789 | 42-507-32385 | WEAVER, BRUCE D. #1 | TEX-HEX CORP. | DRILL | 9,368 | Y |
| 1990-10-17 | 379252 | 42-507-32381 | JOHNSON #3 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-10-17 | 379250 | 42-507-30436 | BLALACK, ALVAN W. JR. #3701H | CITATION OIL & GAS CORP. | RECOMP | 6,200 | Y |
| 1990-10-17 | 379250 | 42-507-30436 | BLALACK, ALVAN W. JR. #3701H | CITATION OIL & GAS CORP. | RECOMP | 6,200 | Y |
| 1990-10-17 | 379250 | 42-507-30436 | BLALACK, ALVAN W. JR. #3701H | CITATION OIL & GAS CORP. | RECOMP | 6,200 | Y |
| 1990-10-16 | 379251 | 42-507-32380 | JOHNSON #2 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-10-11 | 379293 | 42-507-32379 | WAYLAND, JON S. ET AL UNIT #1 | ORYX ENERGY COMPANY | DRILL | 10,450 | Y |
| 1990-10-05 | 379012 | 42-507-32377 | LEGACY/REYNAUD-WEST #1 | HOPI, INC. | DRILL | 6,400 | Y |
| 1990-10-05 | 379012 | 42-507-32377 | LEGACY/REYNAUD-WEST #1 | HOPI, INC. | DRILL | 7,500 | Y |
| 1990-10-04 | 378591 | 42-507-32378 | BARNHART-THOMPSON #4020H | BERENERGY CORPORATION | DRILL | 9,950 | Y |
| 1990-10-03 | 378786 | 42-507-32374 | GLASSCOCK, LETA #35 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-10-03 | 378785 | 42-507-32373 | GLASSCOCK, LETA #34 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-10-02 | 378787 | 42-507-32375 | GLASSCOCK, LETA #36 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-09-26 | 378418 | 42-507-32371 | PETTY, SCOTT JR #11 | GLG ENERGY, L.P. | DRILL | 10,600 | Y |
| 1990-09-26 | 378418 | 42-507-32371 | PETTY, SCOTT JR. #11 | GLG ENERGY, L.P. | DRILL | 10,600 | Y |
| 1990-09-25 | 378528 | 42-507-32372 | BASIN-LANG 16 #4 | BASIN RESOURCES CORPORATION | DRILL | 7,777 | Y |
| 1990-09-24 | 378423 | 42-507-32376 | JONES, E. B. -A- #1 | ORYX ENERGY COMPANY | DRILL | 10,850 | Y |
| 1990-09-24 | 378423 | 42-507-32376 | JONES, E. B. -A- #1 | ORYX ENERGY COMPANY | DRILL | 10,850 | Y |
| 1990-09-17 | 378103 | 42-507-32370 | GLASSCOCK "A" #2 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-09-17 | 378103 | 42-507-32370 | JOHNSON #1 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-09-17 | 378028 | 42-507-32369 | GATES RANCH #1 | WAINOCO OIL & GAS COMPANY | DRILL | 11,320 | Y |
| 1990-09-14 | 377959 | 42-507-32368 | BARNHART-THOMPSON #5020H | BERENERGY CORPORATION | DRILL | 9,950 | Y |
| 1990-09-14 | 377959 | 42-507-32368 | BARNHART-THOMPSON #5020H | BERENERGY CORPORATION | DRILL | 6,523 | Y |
| 1990-09-10 | 377805 | 42-507-32269 | BASIN-200 #1 | BASIN RESOURCES CORPORATION | RECOMP | 7,777 | Y |
| 1990-09-06 | 377571 | 42-507-32367 | GLASSCOCK, LETA #33 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-09-06 | 377571 | 42-507-32367 | GLASSCOCK, LETA #33 | WINN EXPLORATION CO., INC. | DRILL | 6,150 | Y |
| 1990-09-04 | 377512 | 42-507-32366 | COTTON, S.H. #1 | REACH EXPLORATION | DRILL | 7,000 | Y |
| 1990-08-29 | 377201 | 42-507-32364 | PETTY, SCOTT JR. #10 | GLG ENERGY, L.P. | DRILL | 10,000 | Y |
| 1990-08-29 | 377201 | 42-507-32364 | PETTY, SCOTT JR. #10 | GLG ENERGY, L.P. | DRILL | 10,400 | Y |
| 1990-08-28 | 377245 | 42-507-32365 | GLASSCOCK, LETA #32 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-08-28 | 377210 | 42-507-32363 | SPENCER, WILLIAM #1 | ORYX ENERGY COMPANY | DRILL | 11,400 | Y |
| 1990-08-27 | 377120 | 42-507-32289 | KRAWETZ "B" #2 | CACHARA OIL & GAS CO. | RECOMP | 9,800 | Y |
| 1990-08-27 | 377116 | 42-507-32362 | GLASSCOCK "A" #1 | WINN EXPLORATION CO., INC. | DRILL | 7,000 | Y |
| 1990-08-23 | 376818 | 42-507-32360 | DAVIS, C. N. #1 | PYRAMID ENERGY, INC. | DRILL | 3,500 | |
| 1990-08-21 | 376888 | 42-507-32361 | THOMPSON, BARNHART #107H | BERENERGY CORPORATION | DRILL | 6,900 | Y |
| 1990-08-21 | 376888 | 42-507-32361 | BARNHART-THOMPSON #107H | BERENERGY CORPORATION | DRILL | 6,900 | Y |
| 1990-08-21 | 376735 | 42-507-32356 | BRISCOE RANCH #3021 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1990-08-21 | 376735 | 42-507-32356 | BRISCOE RANCH #3021 | SPILLER, ROBERT S. | DRILL | 1,800 | |
| 1990-08-20 | 376796 | 42-507-32359 | KRAWETZ #2 | CHRISTICO PETROLEUM COMPANY | DRILL | 9,900 | Y |
| 1990-08-20 | 376796 | 42-507-32359 | KRAWETZ #2 | CHRISTICO PETROLEUM COMPANY | DRILL | 8,949 | Y |
| 1990-08-20 | 376796 | 42-507-32359 | KRAWETZ #2 | CHRISTICO PETROLEUM COMPANY | DRILL | 8,949 | Y |
| 1990-08-20 | 376763 | 42-507-32358 | SUGAR RANCH UNIT #1 | ORYX ENERGY COMPANY | DRILL | 10,700 | Y |
| 1990-08-17 | 376754 | 42-507-32357 | BASIN-DILLEY #1 | BASIN RESOURCES CORPORATION | DRILL | 7,777 | Y |
| 1990-08-17 | 376754 | 42-507-32357 | BASIN-DILLEY #1 | BASIN RESOURCES CORPORATION | DRILL | 7,777 | Y |
| 1990-08-17 | 376753 | 42-507-32287 | BASIN - 16 #3 | BASIN RESOURCES CORPORATION | RECOMP | 7,777 | Y |
| 1990-08-15 | 376659 | 42-507-32355 | MIGUEL, GRAN #1 | PETRONOMICS PETROLEUM, INC. | DRILL | 4,100 | Y |
Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Zavala County.