Saltwater Disposal Wells in Frio County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
147
Permitted Capacity
452,100 bbl/d
Injected 12mo (thru 2025-06)
14.6M bbl
UIC Permits All Time
554
Earthquakes in Frio County → seismicity & the disposal link, from TexNet
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Plugged | WITTING OLMOS -B- SAND UNIT #210W | 42-163-00421 | TEXAS SOUTHERN PETRO CORP | Injection | 300 | -- | 3,714–3,729 |
| Plugged | THOMPSON, C.R. #606 | 42-163-00549 | OILEX INT'L INVESTMENTS, INC | Injection | 300 | -- | 3,105–3,155 |
| Plugged | THOMPSON, DENNIS #5I | 42-163-00322 | WHITE OAK OPER CO LLC | Injection | 300 | -- | 3,400–3,600 |
| Cancelled | B. K. NIXON #1 | 42-163-00000 | SOCONY MOBIL OIL COMPANY, INC. | Injection | 300 | -- | 4,976–4,985 |
| Cancelled | B. K. NIXON #2 | 42-163-00000 | SOCONY MOBIL OIL COMPANY, INC. | Injection | 300 | -- | 4,949–4,975 |
| Cancelled | B. K. NIXON #4 | 42-163-00000 | SOCONY MOBIL OIL COMPANY, INC. | Injection | 300 | -- | 4,980–4,995 |
| Cancelled | B. K. NIXON #8 | 42-163-00000 | SOCONY MOBIL OIL COMPANY, INC. | Injection | 300 | -- | 4,992–5,005 |
| Plugged | ROSENAUER, MATTIE #5I | 42-163-00268 | JENEX PETRO CORP | Injection | 300 | -- | 3,400–3,600 |
| Plugged | THOMPSON, DENNIS #1I | 42-163-00318 | WHITE OAK OPER CO LLC | Injection | 300 | -- | 3,400–3,600 |
| Plugged | THOMPSON, C.R. "A" #708 | 42-163-00582 | OILEX INT'L INVESTMENTS, INC | Injection | 300 | -- | 3,076–3,105 |
| Plugged | BURNS, JANE #41 | 42-163-01624 | JENEX PETRO CORP | Injection | 300 | -- | 3,465–3,490 |
| Plugged | BIG FOOT OLMOS -B- UNIT #605 | 42-163-00548 | U.S. JIMOIL CORP | Injection | 300 | -- | 3,115–3,150 |
| Plugged | BIG FOOT OLMOS -B- UNIT #602 | 42-163-00545 | MAXUS EXPL CO | Injection | 300 | -- | 3,143–3,194 |
| Plugged | BIG FOOT OLMOS -B- UNIT #604 | 42-163-00547 | U.S. JIMOIL CORP | Injection | 300 | -- | 3,131–3,192 |
| Plugged | BIG FOOT OLMOS -B- UNIT #603 | 42-163-00546 | U.S. JIMOIL CORP | Injection | 300 | -- | 3,135–3,180 |
| Cancelled | ROSENAUER, MATTIE #6I | 42-163-00267 | WHITE OAK OPER CO LLC | Injection | 300 | -- | 3,400–3,600 |
| Plugged | ROSENAUER, MATTIE #14 | 42-163-32463 | WHITE OAK OPER CO LLC | Injection | 300 | -- | 3,400–3,600 |
| Cancelled | THOMPSON, C. S. -A- #12I | 42-163-00316 | WHITE OAK OPER CO LLC | Injection | 300 | -- | 3,400–3,600 |
| Plugged | KOTHMANN, E. B. #1 | 42-163-01745 | VAC-U-LIFT PROD CO.,INC | Injection | 300 | -- | 5,534–5,613 |
| Cancelled | B. K. NIXON #9 | 42-163-00000 | SOCONY MOBIL OIL COMPANY, INC. | Injection | 300 | -- | 4,972–4,985 |
| Plugged | MEADOR, O.E. #401 | 42-163-00551 | OILEX INT'L INVESTMENTS, INC | Injection | 300 | -- | 3,077–3,115 |
| Plugged | MEADOR, O.E. #406 | 42-163-00540 | OILEX INT'L INVESTMENTS, INC | Injection | 300 | -- | 3,071–3,103 |
| Plugged | THOMPSON, C.R. #607 | 42-163-00550 | OILEX INT'L INVESTMENTS, INC | Injection | 300 | -- | 3,098–3,132 |
| Plugged | ROSENAUER, MATTIE #2I | 42-163-00271 | SHELL WESTERN E&P INC | Injection | 300 | -- | 3,400–3,600 |
| Plugged | HILDEBRAND, IRA #3 | 42-163-32083 | BARNES, LARRY PETRO, INC | Injection | 300 | -- | 6,331–6,341 |
| Plugged | BIG FOOT OLMOS -B- UNIT #601 | 42-163-00543 | MAXUS EXPL CO | Injection | 300 | -- | 3,149–3,193 |
| Plugged | BURKETT, FRED E. #1A | 42-163-32243 | GINCO OPER CO | Injection | 250 | -- | 2,984–3,006 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #394 | 42-163-00286 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,415–3,455 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #405 | 42-163-80281 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,458–3,488 |
| Inactive | BIG FOOT OLMOS B SAND UNIT #25 | 42-163-00922 | MAVERICK ENGY GROUP, INC | Injection | 200 | -- | 3,141–3,161 |
| Plugged | JOHNSON, NAT M. #3 | 42-163-01310 | ANCIRA, ROBERT | UIC | 200 | -- | 3,940–3,944 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #339 | 42-163-00287 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,359–3,399 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #179 | 42-163-01728 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,218–3,285 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #404 | 42-163-80280 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,427–3,461 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #71 | 42-163-01705 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,211–3,280 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #122 | 42-163-80181 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,227–3,279 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #299 | 42-163-00369 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,383–3,435 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #302 | 42-163-00326 | SHELL WESTERN E&P INC | UIC | 200 | -- | 3,553–3,580 |
| Cancelled | THOMPSON "A" #16 | 42-163-00000 | SHAMROCK OIL & GAS CORP., THE | UIC | 150 | -- | 30,883–116 |
| Plugged | RIPPEY -A- #112 | 42-163-00423 | LEASE ROLLOVER OPERATIONS, INC. | Injection | 150 | -- | 3,620–3,652 |
| Plugged | WITTING OLMOS -B- SAND UNIT #110 | 42-163-80373 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,606–3,638 |
| Plugged | WITTING OLMOS -B- SAND UNIT #29W | 42-163-00420 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,731–3,744 |
| Plugged | WITTING OLMOS -B- SAND UNIT #25W | 42-163-00416 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,728–3,738 |
| Plugged | WITTING OLMOS -B- SAND UNIT #23W | 42-163-00403 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,725–3,731 |
| Plugged | WITTING OLMOS -B- SAND UNIT #22W | 42-163-80605 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,720–3,728 |
| Plugged | WITTING OLMOS -B- SAND UNIT #12 | 42-163-00413 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,660–36,989 |
| Plugged | WITTING OLMOS -B- SAND UNIT #11 | 42-163-00412 | TEXAS SOUTHERN PETRO CORP | Injection | 150 | -- | 3,682–3,735 |
| Plugged | SAUNDERS, SUSIE #2 | 42-163-00273 | JENEX PETRO CORP | Injection | 150 | -- | 3,504–3,525 |
| Cancelled | THOMPSON "A" #13 | 42-163-00000 | SHAMROCK OIL & GAS CORP., THE | UIC | 150 | -- | 3,085–3,130 |
| Cancelled | G. E. TATE #3 | 42-163-00000 | SHAMROCK OIL & GAS CORP., THE | UIC | 150 | -- | 3,124–3,163 |
| Cancelled | W. P. JONES #4 | 42-163-00000 | SHAMROCK OIL & GAS CORP., THE | UIC | 150 | -- | 3,137–3,173 |
| Cancelled | CUMPIAN, A. G. #5 | 42-163-80119 | J-W OPER CO | Injection | 150 | -- | 3,875–3,898 |
| Cancelled | LAURA TOALSON #2 | 42-163-01423 | TESORO PETRO CORP | UIC | 110 | -- | 4,234–4,237 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #390 | 42-163-00301 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,342–3,370 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #398 | 42-163-00395 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,503–3,510 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #396 | 42-163-00282 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,457–3,489 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #238 | 42-163-00345 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,332–3,390 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #240 | 42-163-80264 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,387–3,427 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #45 | 42-163-00526 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,224–3,280 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #124 | 42-163-80183 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,237–3,279 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #392 | 42-163-00307 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,389–3,418 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #241I | 42-163-01055 | JENEX PETRO CORP | Injection | 100 | -- | 3,404–3,434 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #324 | 42-163-00295 | JENEX PETRO CORP | Injection | 100 | -- | 3,306–3,373 |
| Plugged | BURNS, JANE A #254 | 42-163-00351 | JENEX PETRO CORP | Injection | 100 | -- | 3,210–3,270 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #10 | 42-163-80143 | JENEX PETRO CORP | Injection | 100 | -- | 3,110–3,149 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #322 | 42-163-00241 | JENEX PETRO CORP | Injection | 100 | -- | 3,270–3,330 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #7 | 42-163-00559 | HCM | Injection | 100 | -- | 3,248–3,298 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #389 | 42-163-00233 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,310–3,338 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #8I | 42-163-01736 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,065–3,107 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #386 | 42-163-00381 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,514–3,552 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #39 | 42-163-00510 | JENEX PETRO CORP | Injection | 100 | -- | 3,282–3,325 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #38 | 42-163-00508 | JENEX PETRO CORP | Injection | 100 | -- | 3,271–3,328 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #36I | 42-163-00509 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,234–3,293 |
| Plugged | BURNS, JANE A #255 | 42-163-00349 | JENEX PETRO CORP | Injection | 100 | -- | 3,234–3,297 |
| Plugged | BURNS, JANE A #256 | 42-163-00348 | JENEX PETRO CORP | Injection | 100 | -- | 3,270–3,345 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #259 | 42-163-00356 | JENEX PETRO CORP | Injection | 100 | -- | 3,353–3,390 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #30 | 42-163-00557 | JENEX PETRO CORP | Injection | 100 | -- | 3,256–3,272 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #29 | 42-163-00556 | HCM | Injection | 100 | -- | 3,230–3,290 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #28 | 42-163-00568 | JENEX PETRO CORP | Injection | 100 | -- | 3,203–3,230 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #26 | 42-163-80159 | JENEX PETRO CORP | Injection | 100 | -- | 3,172–3,206 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #385 | 42-163-00379 | JENEX PETRO CORP | Injection | 100 | -- | 3,456–3,517 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #22 | 42-163-00560 | HCM | Injection | 100 | -- | 3,257–3,296 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #21 | 42-163-80154 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,222–3,251 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #20 | 42-163-80153 | JENEX PETRO CORP | Injection | 100 | -- | 3,190–3,217 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #382 | 42-163-00281 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,414–3,444 |
| Plugged | BURNS, JANE -B- #24WD | 42-163-00916 | TEXACO INC | Injection | 100 | -- | 3,584–3,605 |
| Plugged | BURNS, JANE -B- #17 | 42-163-00225 | TEXACO INC | Injection | 100 | -- | 3,567–3,579 |
| Plugged | BURNS, JANE -B- #18 | 42-163-00222 | TEXACO INC | Injection | 100 | -- | 3,575–3,585 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #378 | 42-163-00305 | JENEX PETRO CORP | Injection | 100 | -- | 3,359–3,384 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #372 | 42-163-00380 | JENEX PETRO CORP | Injection | 100 | -- | 3,501–3,535 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #363 | 42-163-00304 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,320–3,345 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #362 | 42-163-00232 | JENEX PETRO CORP | Injection | 100 | -- | 3,311–3,338 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #360 | 42-163-00227 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,280–3,305 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #19 | 42-163-01681 | JENEX PETRO CORP | Injection | 100 | -- | 3,175–3,234 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #358 | 42-163-00397 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,499–3,525 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #356 | 42-163-00292 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,436–3,472 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #350 | 42-163-00299 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,326–3,375 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #346 | 42-163-00228 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,291–3,324 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #345 | 42-163-00396 | HCM | Injection | 100 | -- | 3,515–3,548 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #343 | 42-163-00398 | JENEX PETRO CORP | Injection | 100 | -- | 3,458–3,483 |
Source: RRC UIC well master and H-10 injection filings. H-10s are annual filings on staggered anniversaries — injected volumes shown through 2025-06, the newest month with complete reporting; recent months are never estimated.