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 | BIG FOOT OLMOS B SAND UNIT #406 | 42-163-00392 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,530–3,550 |
| Plugged | BURNS, JANE A #235 | 42-163-00350 | WHITE OAK OPER CO LLC | Injection | 100 | -- | 3,246–3,280 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #237 | 42-163-00339 | JENEX PETRO CORP | Injection | 100 | -- | 3,295–3,359 |
| Plugged | NEWTON, NANA D. #1W | 42-163-01332 | BEARD ENGY GROUP, INC | Injection | 80 | -- | 5,337 |
| Plugged | MORROW, T.C. #1 | 42-163-30185 | COLLIER DIAMOND -C- OILS, INC | Injection | 60 | -- | 5,166–5,493 |
| Plugged | THOMPSON, C.R. #614 | 42-163-30126 | OILEX INT'L INVESTMENTS, INC | Injection | 50 | -- | 3,086–3,110 |
| Plugged | BURNS -G- #2B | 42-163-32350 | STO OPER CO | Injection | 45 | -- | 3,408–3,426 |
| Plugged | BURNS, JANE -B- #2B | 42-163-30080 | SOUTHERN TEXAS OIL COMPANY | Injection | 45 | -- | 3,440–3,466 |
| Plugged | HUTCHISON, JAMES #2 | 42-163-30828 | ST. JOE PETR. U. S. CORP | Injection | 40 | -- | 5,900–6,185 |
| Plugged | NEWTON, NANA D. #4 | 42-163-01334 | FRIO-TEX OIL & GAS CO. | Injection | 40 | -- | 5,330–5,510 |
| Plugged | THOMPSON, C.R. "A" #707 | 42-163-00581 | OILEX INT'L INVESTMENTS, INC | Injection | 25 | -- | 3,093–3,118 |
| Plugged | BIG FOOT OLMOS -B- UNIT #7013 | 42-163-00587 | MAXUS EXPL CO | Injection | 25 | -- | 3,085–3,130 |
| Plugged | MEADOR, O.E. #405 | 42-163-00541 | OILEX INT'L INVESTMENTS, INC | Injection | 25 | -- | 3,071–3,115 |
| Plugged | BURNS, JANE -B- #1 | 42-163-00165 | HOLLOWAY OIL CO | Injection | 15 | -- | 3,170–3,195 |
| Plugged | BURNS, JANE A #222 | 42-163-00996 | DIAMOND ENERGY SERVICES, LP | Injection | 1 | -- | 3,200–3,300 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #364 | 42-163-01047 | MAVERICK ENGY GROUP, INC | Injection | 0 | -- | 3,200–3,500 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #366 | 42-163-01051 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,200–3,500 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #133 | 42-163-00963 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,214–3,241 |
| Plugged | STEWART, T. B. #6 | 42-163-00377 | NEUMANN, ALFRED | UIC | 0 | -- | -- |
| Plugged | STEWART, T. B. #2 | 42-163-00490 | J-W OPER CO | UIC | 0 | -- | -- |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #411I | 42-163-00393 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,500–3,600 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #410I | 42-163-00394 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,450–3,600 |
| Plugged | WITTING OLMOS -B- SAND UNIT #15 | 42-163-80368 | TEXAS SOUTHERN PETRO CORP | UIC | 0 | -- | -- |
| Plugged | WITTING OLMOS -B- SAND UNIT #19 | 42-163-80372 | TEXAS SOUTHERN PETRO CORP | UIC | 0 | -- | -- |
| Plugged | BURNS, JANE #2W | 42-163-00157 | HOLLOWAY OIL CO | UIC | 0 | -- | -- |
| Plugged | BIG FOOT OLMOS B SAND UNIT #104AI | 42-163-32199 | JENEX PETRO CORP | Injection | 0 | -- | 3,250–3,338 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #95AI | 42-163-32200 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,250–3,325 |
| Plugged | BEEVER, CHAS. A. #2 | 42-163-01266 | ANCIRA, ROBERT | UIC | 0 | -- | -- |
| Plugged | WEST, LOLA #1 | 42-163-30015 | L. & R. DISPOSAL COMPANY | Disposal | 0 | -- | 4,250–8,151 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #79AI | 42-163-32499 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,300–3,400 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #106 | 42-163-00947 | JENEX PETRO CORP | Injection | 0 | -- | 3,287–3,319 |
| Plugged | WITTING OLMOS -B- SAND UNIT #116W | 42-163-30062 | TEXAS SOUTHERN PETRO CORP | UIC | 0 | -- | -- |
| Plugged | STEWART, T. B. (NEUMANN) #3 | 42-163-00469 | J-W OPER CO | UIC | 0 | -- | -- |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #374 | 42-163-00384 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,556–3,643 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #80 | 42-163-00938 | JENEX PETRO CORP | Injection | 0 | -- | 3,227–3,252 |
| Inactive | BURNS, JANE #45 L | 42-163-00330 | DIAMOND ENERGY SERVICES, LP | Injection | 0 | -- | 3,520–3,544 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #59AI | 42-163-32495 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,250–3,400 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #388 | 42-163-00385 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,571–3,606 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #384 | 42-163-00283 | WHITE OAK OPER CO LLC | Injection | 0 | -- | 3,474–3,509 |
| Plugged | BIG FOOT OLMOS B SAND UNIT #282 U | 42-163-00328 | MAVERICK ENGY GROUP, INC | Injection | 0 | -- | 3,232–3,260 |
| Inactive | BIG FOOT OLMOS B SAND UNIT #283 U | 42-163-00355 | MAVERICK ENGY GROUP, INC | Injection | 0 | -- | 3,256–3,296 |
| Inactive | BIG FOOT OLMOS B SAND UNIT #284 | 42-163-01010 | MAVERICK ENGY GROUP, INC | Injection | 0 | -- | 3,287–3,314 |
| Plugged | NEWTON, NANA D. SWD #2 | 42-163-01330 | FREEMAN ENGY, INC | UIC | 0 | -- | -- |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #97AI | 42-163-32500 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,300–3,400 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #59A | 42-163-32479 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,250–3,400 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #79AI | 42-163-32499 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,300–3,400 |
| Plugged | STEWART, T. B. (NEUMANN) #2 | 42-163-00473 | NEUMANN, ALFRED | UIC | 0 | -- | -- |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #117I | 42-163-32498 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,250–3,400 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #163AI | 42-163-32503 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,250–3,400 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #167 | 42-163-80216 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,318–3,360 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #304 | 42-163-00000 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,288–3,346 |
| Cancelled | BIG FOOT OLMOS B SAND UNIT #395 | 42-163-01041 | SHELL WESTERN E&P INC | Injection | 0 | -- | 3,439–3,464 |
| Plugged | STEWART, T. B. #5 | 42-163-00471 | NEUMANN, ALFRED | UIC | 0 | -- | -- |
| Plugged | STEWART, T. B. #3 | 42-163-00472 | NEUMANN, ALFRED | UIC | 0 | -- | -- |
page 6 of 6 · 554 wells
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.