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 7 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
3,562
3,562 permits
| ISSUED | PERMIT | API | LEASE | OPERATOR | TYPE | DEPTH | HZ |
|---|---|---|---|---|---|---|---|
| 1979-09-28 | 59321 | 42-507-31235 | PRYOR, IKE T. #2 | INDEPENDENT EXPLORATION CO. | DRILL | 3,000 | |
| 1979-09-25 | 58895 | 42-507-31234 | PRYOR RANCH -A #26 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-09-25 | 58894 | 42-507-31233 | PRYOR RANCH #34 | WINN EXPLORATION/DULCE COMPANY | DRILL | 2,988 | |
| 1979-09-14 | 57977 | 42-507-31232 | NELSON, A. N. #1 | LYNCH, W. WALDO | DRILL | 3,470 | |
| 1979-09-12 | 57902 | 42-507-31231 | JONES UNIT #1 | CLARK, JOHN M. | DRILL | 2,200 | |
| 1979-09-12 | 57870 | 42-507-31230 | JESSEE #2 | CLARK, JOHN M. | DRILL | 2,010 | |
| 1979-09-12 | 57789 | 42-507-31229 | PRYOR RANCH #1 | ROME EXPLORATION CO, INC. | DRILL | 3,000 | |
| 1979-09-10 | 57598 | 42-507-31228 | PRYOR RANCH #29 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-09-10 | 57595 | 42-507-31227 | PRYOR RANCH #30 | WINN EXPLORATION/DULCE COMPANY | DRILL | 2,871 | |
| 1979-09-10 | 57593 | 42-507-31226 | PRYOR RANCH #32 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-09-10 | 57496 | 42-507-31225 | JOHNSON, P. (A-LEASE) #1-54 | E R I LTD. | DRILL | 5,290 | |
| 1979-09-06 | 57333 | 42-507-31224 | PRYOR RANCH #28 | SUNDOWN DRILLING CO. | DRILL | 3,050 | |
| 1979-09-06 | 57214 | 42-507-31222 | PRYOR RANCH #24 | SUNDOWN DRILLING CO. | DRILL | 2,705 | |
| 1979-09-05 | 57331 | 42-507-31223 | ZIMMERMAN, E. D. #1 | CLARK, ARTHUR E. | DRILL | 3,800 | |
| 1979-08-30 | 56836 | 42-507-31221 | PRYOR RANCH #27 | SUNDOWN DRILLING CO. | DRILL | 3,265 | |
| 1979-08-30 | 56785 | 42-507-31220 | PRYOR-PICKENS #2 | MOLE OPERATING CO., INC. | DRILL | 3,550 | |
| 1979-08-24 | 56522 | 42-507-31218 | ELAINE SAND OIL UNIT III #1 | JENNINGS EXPLORATION CO. | DRILL | 3,900 | |
| 1979-08-24 | 56499 | 42-507-31217 | MANUEL, GLADNEY, ET AL #1 | JENNINGS EXPLORATION CO. | DRILL | 4,300 | |
| 1979-08-23 | 56783 | 42-507-31219 | WINTERBOTHAM, GEORGE S. "B" #2 | TEJAS PRODUCTION CO | DRILL | 3,700 | |
| 1979-08-23 | 56307 | 42-507-31216 | CASSIN, MRS. S. D. S. ET AL #2 | COATES, GEORGE H. ESTATE OF | DRILL | 3,300 | |
| 1979-08-20 | 55982 | 42-507-31215 | BAGGETT, JOHN B. -A- #3 | SUN EXPLORATION & PRODUCTION CO. | DRILL | 7,100 | |
| 1979-08-15 | 55667 | 42-507-31214 | WEAVER, BRUCE #1 | GUARDIAN OIL COMPANY | DRILL | 6,700 | |
| 1979-08-15 | 55616 | 42-507-31213 | PRYOR RANCH #25 | WINN EXPLORATION/DULCE COMPANY | DRILL | 3,163 | |
| 1979-08-15 | 55615 | 42-507-31212 | PRYOR RANCH #22 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-08-10 | 55296 | 42-507-31211 | GRIFFITH, ET AL "B" #1 | WARNCKE, GLENNWOOD | DRILL | 4,307 | |
| 1979-08-10 | 55292 | 42-507-31210 | LAMANTIA #1 | LYNCH, W. WALDO | DRILL | 4,000 | |
| 1979-08-08 | 54913 | 42-507-31209 | PRYOR RANCH #20 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-08-08 | 54904 | 42-507-31208 | BRISCOE RANCH, INC, ET AL #1-20 | GETTY OIL CO. | DRILL | 2,000 | |
| 1979-08-03 | 54565 | 42-507-31207 | WEST, MARY #1 | GALAXY OIL COMPANY | DRILL | 5,462 | |
| 1979-08-01 | 54184 | 42-507-31122 | PYROR, I. T.-BOX, WARD #4 | MOLE OPERATING CO., INC. | RECOMP | 3,700 | |
| 1979-08-01 | 54173 | 42-507-31206 | MCCLENDON, EARL #2 | RISIEN, H. V. | DRILL | 3,390 | |
| 1979-07-25 | 53686 | 42-507-31205 | PRYOR RANCH #16 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-25 | 53685 | 42-507-31204 | PRYOR RANCH #18 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-25 | 53684 | 42-507-31203 | PRYOR RANCH #23 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-23 | 53618 | 42-507-31202 | SMYTH #1 | EQUITX ENERGY CORP. | DRILL | 422 | |
| 1979-07-20 | 53342 | 42-507-31201 | WILLOUGHBY, R. B. #1 | DINERO OIL COMPANY | DRILL | 3,500 | |
| 1979-07-20 | 53323 | 42-507-31200 | PRYOR RANCH #14 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-18 | 53172 | 42-507-31199 | PRYOR RANCH #17 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-18 | 53171 | 42-507-31198 | PRYOR RANCH #15 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-18 | 53170 | 42-507-31197 | PRYOR RANCH #13 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-17 | 53004 | 42-507-80261 | NORTON,RW,JR.-CHAPPAROSA RANCH#6 #6 | NORTON OIL CO.,INC. & GRAGE,V.P. | RECOMP | 3,388 | |
| 1979-07-17 | 53000 | 42-507-31196 | CHAPPAROSA RANCH #51 | NORTON OIL CO.,INC. & GRAGE,V.P. | DRILL | 2,501 | |
| 1979-07-16 | 52933 | 42-507-31195 | PRYOR RANCH #19 | WINN EXPLORATION/DULCE COMPANY | DRILL | 3,000 | |
| 1979-07-16 | 52932 | 42-507-31194 | PRYOR RANCH #21 | WINN EXPLORATION/DULCE COMPANY | DRILL | 3,070 | |
| 1979-07-10 | 52529 | 42-507-31193 | PRYOR RANCH #12 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-10 | 52528 | 42-507-31192 | PRYOR RANCH #11 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-10 | 52527 | 42-507-31191 | PRYOR RANCH #10 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-10 | 52525 | 42-507-31190 | PRYOR RANCH #9 | SUNDOWN DRILLING CO. | DRILL | 3,500 | |
| 1979-07-10 | 52524 | 42-507-31189 | PRYOR RANCH #8 | DULCE CO., THE | DRILL | 3,500 | |
| 1979-07-10 | 52522 | 42-507-31188 | PRYOR RANCH #7 | SUNDOWN DRILLING CO. | DRILL | 3,500 |
Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Zavala County.