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) |
|---|---|---|---|---|---|---|---|
| Active | BIG FOOT OLMOS B SAND UNIT #273 | 42-163-00544 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,207–3,259 |
| Active | BURNS, JANE -C- #1 | 42-163-00242 | WATSON ENGY INVESTMENTS, LLC | Injection | 100 | -- | 3,432–3,465 |
| Active | BIG FOOT OLMOS B SAND UNIT #408 | 42-163-80282 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,449–3,482 |
| Active | BIG FOOT OLMOS B SAND UNIT #176 | 42-163-00452 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,311–3,369 |
| Active | BIG FOOT OLMOS B SAND UNIT #277 | 42-163-00359 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,299–3,360 |
| Active | BURNS, JANE -C- #3 | 42-163-00244 | WATSON ENGY INVESTMENTS, LLC | Injection | 100 | -- | 3,370–3,390 |
| Active | BIG FOOT OLMOS B SAND UNIT #380 | 42-163-00302 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,380–3,420 |
| Active | BIG FOOT OLMOS B SAND UNIT #31 | 42-163-01680 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,154–3,169 |
| Active | BIG FOOT OLMOS B SAND UNIT #32 | 42-163-00542 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,157–3,184 |
| Active | BIG FOOT OLMOS B SAND UNIT #34 | 42-163-01690 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,200–3,257 |
| Active | BIG FOOT OLMOS B SAND UNIT #292 | 42-163-00336 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,204–3,226 |
| Active | BIG FOOT OLMOS B SAND UNIT #293 | 42-163-01084 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,214–3,263 |
| Active | BIG FOOT OLMOS B SAND UNIT #352 | 42-163-00298 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,352–3,379 |
| Active | BIG FOOT OLMOS B SAND UNIT #354 | 42-163-00294 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,390–3,424 |
| Active | BIG FOOT OLMOS B SAND UNIT #296 | 42-163-00363 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,294–3,353 |
| Active | BIG FOOT OLMOS B SAND UNIT #297 | 42-163-00364 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,319–3,378 |
| Active | BIG FOOT OLMOS B SAND UNIT #298 | 42-163-00365 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,345–3,398 |
| Active | BIG FOOT OLMOS B SAND UNIT #191 | 42-163-00447 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,312–3,362 |
| Active | BIG FOOT OLMOS B SAND UNIT #301 | 42-163-01710 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,458–3,474 |
| Active | BIG FOOT OLMOS B SAND UNIT #41 | 42-163-01701 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,181–3,215 |
| Active | BIG FOOT OLMOS B SAND UNIT #309 | 42-163-00335 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,217–3,251 |
| Active | BIG FOOT OLMOS B SAND UNIT #43 | 42-163-01693 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,188–3,219 |
| Active | BIG FOOT OLMOS B SAND UNIT #311 | 42-163-00373 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,284–3,345 |
| Active | BIG FOOT OLMOS B SAND UNIT #312 | 42-163-00367 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,306–3,349 |
| Active | BIG FOOT OLMOS B SAND UNIT #203 | 42-163-00446 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,341–3,372 |
| Active | BIG FOOT OLMOS B SAND UNIT #314 | 42-163-00374 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,362–3,411 |
| Active | BIG FOOT OLMOS B SAND UNIT #47 | 42-163-00495 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,266–3,303 |
| Active | BIG FOOT OLMOS B SAND UNIT #317 | 42-163-80278 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,477–3,503 |
| Active | BIG FOOT OLMOS B SAND UNIT #49 | 42-163-00496 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,290–3,332 |
| Active | BIG FOOT OLMOS B SAND UNIT #51 | 42-163-01692 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,202–3,250 |
| Active | BIG FOOT OLMOS B SAND UNIT #53 | 42-163-01691 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,208–3,285 |
| Active | BIG FOOT OLMOS B SAND UNIT #55 | 42-163-00525 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,261–3,314 |
| Active | BURNS, JANE -C- #14 | 42-163-00255 | WATSON ENGY INVESTMENTS, LLC | Injection | 100 | -- | 3,396–3,415 |
| Active | BIG FOOT OLMOS B SAND UNIT #59 | 42-163-00523 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,310–3,372 |
| Active | BIG FOOT OLMOS B SAND UNIT #330 | 42-163-00288 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,407–3,446 |
| Active | BIG FOOT OLMOS B SAND UNIT #62 | 42-163-01694 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,222–3,253 |
| Active | BIG FOOT OLMOS B SAND UNIT #64 | 42-163-00528 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,247–3,296 |
| Active | BURNS, JANE -C- #18 | 42-163-00226 | WATSON ENGY INVESTMENTS, LLC | Injection | 100 | -- | 3,397–3,407 |
| Active | BIG FOOT OLMOS B SAND UNIT #341 | 42-163-00289 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,400–3,447 |
| Active | BIG FOOT OLMOS B SAND UNIT #70 | 42-163-00493 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,317–3,367 |
| Active | BIG FOOT OLMOS B SAND UNIT #211 | 42-163-00342 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,273–3,329 |
| Active | BIG FOOT OLMOS B SAND UNIT #73 | 42-163-01689 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,232–3,264 |
| Active | BIG FOOT OLMOS B SAND UNIT #212 | 42-163-00343 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,308–3,365 |
| Active | BIG FOOT OLMOS B SAND UNIT #161I | 42-163-00435 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,281–3,338 |
| Active | BIG FOOT OLMOS B SAND UNIT #79 | 42-163-00518 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,304–3,360 |
| Active | BIG FOOT OLMOS B SAND UNIT #82 | 42-163-00498 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,232–3,269 |
| Active | BIG FOOT OLMOS B SAND UNIT #332 | 42-163-00390 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,510–3,542 |
| Plugged | JOHNSTON -B- #3 | 42-163-32850 | SILVER ROCK ENERGY, LLC | Injection | 500 | 31,964 | 5,036–8,576 |
| Cancelled | FRIO SWD #3 | 42-163-00000 | MILESTONE ENVIRO SERVICES, LLC | Disposal | 20,000 | -- | 5,100–5,400 |
| Inactive | STEWART #1 | 42-163-33411 | ARETE OPER CO, LLC | Disposal | 400 | -- | 3,920–3,955 |
| Cancelled | GRAFF DERBY SWD #1 | 42-163-00000 | SABLE ENVIRONMENTAL, LLC | Disposal | 25,000 | -- | 4,000–5,300 |
| Cancelled | DILLEY SWD #1 | 42-163-33653 | CHARLES HOLSTON, INC | Disposal | 25,000 | -- | 7,550–8,700 |
| Cancelled | SES FRIO SWD #2 | 42-163-00000 | SELECT ENGY SERVICES, LLC | Disposal | 25,000 | -- | 7,700–12,000 |
| Cancelled | LEHMAN SWD #2 | 42-163-00000 | PYOTE WELL SERVICE, LLC | Disposal | 25,000 | -- | 6,550–9,500 |
| Cancelled | CAT-DILLEY SWD #3 | 42-163-00000 | TRINITY ENVIRONMENTAL SWD,L.L.C | Disposal | 25,000 | -- | 5,400–6,500 |
| Cancelled | BRICE #2 | 42-163-00000 | BOSQUE DISPOSAL SYSTEMS, LLC | Disposal | 25,000 | -- | 5,000–6,000 |
| Cancelled | STICKERS SWD #1 #1 | 42-163-33055 | SELECT ENGY SERVICES, LLC | Disposal | 20,000 | -- | 4,900–5,100 |
| Cancelled | HAUSSER #2SW | 42-163-33998 | SN OPER, LLC | Disposal | 20,000 | -- | 6,800–9,800 |
| Plugged | GOOD #1 | 42-163-32428 | PRO FIELD SERVICES, INC | Disposal | 20,000 | -- | 4,600–6,000 |
| Plugged | DILLEY UNIT "C" #1 | 42-163-32991 | RCLJ CONSTRUCTION, INC | Disposal | 20,000 | -- | 4,900–6,000 |
| Plugged | MCKINLEY, ART #4 | 42-163-30472 | BAXTER, KELLY H | Disposal | 20,000 | -- | 4,620–4,650 |
| Cancelled | FRIO SWD #2 | 42-163-00000 | MILESTONE ENVIRO SERVICES, LLC | Disposal | 20,000 | -- | 5,100–5,400 |
| Plugged | FRIO COUNTY SCHOOL LAND #5 | 42-163-33467 | DSD-FRIO ENVIRONMENTAL, INC. | Disposal | 15,000 | -- | 4,500–6,000 |
| Plugged | FRIO COUNTY SCHOOL LAND #6 | 42-163-33725 | DSD-FRIO ENVIRONMENTAL, INC. | Disposal | 15,000 | -- | 4,500–6,000 |
| Cancelled | KLOPEK #1 | 42-163-00000 | OMBER PETRO & ENGY CORP | Disposal | 15,000 | -- | 5,090–5,200 |
| Plugged | BURNS, JANE #E 2 | 42-163-01652 | MAVERICK ENGY GROUP, INC | Disposal | 12,000 | -- | 3,456–3,490 |
| Plugged | ALLERKAMP, ERNEST E. #1 | 42-163-30154 | JENEX OPER CO OF TEXAS | Injection | 12,000 | -- | 4,280–4,380 |
| Plugged | ALLERKAMP #1 | 42-163-32261 | JENEX OPER CO OF TEXAS | Injection | 12,000 | -- | 4,276–4,352 |
| Cancelled | ALLERKAMP #2 | 42-163-00000 | JENEX OPER CO OF TEXAS | Injection | 12,000 | -- | 4,280–4,380 |
| Plugged | CEMETERY ROAD DISPOSAL #1 | 42-163-32921 | EXPRESS OIL AND GAS | Disposal | 10,500 | -- | 4,975–5,090 |
| Plugged | HURT #1D | 42-163-33055 | KEY ENGY SERVICES,INC GCD | Disposal | 10,000 | -- | 4,920–5,032 |
| Plugged | LEHMAN #1 | 42-163-32682 | COHORT PETRO MANAGEMENT, LLC | Disposal | 10,000 | -- | 4,580–5,160 |
| Plugged | HEARRELL, C.W. #1 | 42-163-32266 | PARKWAY PETRO, INC | Disposal | 10,000 | -- | 4,300–4,400 |
| Inactive | RALLY PETROLEUM #4H | 42-163-33441 | MUELLER EXPL, INC | Disposal | 10,000 | -- | 4,846–5,452 |
| Plugged | HUCK, L.M. ETAL #1 | 42-163-30801 | EXXCEL OPERATING COMPANY | Disposal | 10,000 | -- | 5,050–5,300 |
| Plugged | GOFORTH SWD #1H | 42-163-32610 | SELECT ENGY SERVICES, LLC | Disposal | 10,000 | -- | 5,325–5,825 |
| Plugged | BATTAGLIA, VIVIAN #2 | 42-163-31892 | 4 CORNERS SWD, INC. | Disposal | 10,000 | -- | 5,020–5,750 |
| Plugged | MARIA #1 | 42-163-32835 | TIDE WEST OIL CO | UIC | 10,000 | -- | 5,050–5,800 |
| Plugged | KNAPPICK, FRED #1D | 42-163-32066 | WELL SOLUTIONS, INC. | Disposal | 10,000 | -- | 5,090–5,200 |
| Plugged | BARNHART, ARTIE #2 | 42-163-30710 | LONE STAR OPER CO | Disposal | 10,000 | -- | 4,340–4,480 |
| Plugged | LEPPARD, ANNIE MAE #1 | 42-163-30664 | JOHNSON SANFORD OP CO., LTD | Disposal | 10,000 | -- | 4,800–5,100 |
| Plugged | MARIA SWD #1 | 42-163-32275 | MARIAH ENGY CORP | Disposal | 10,000 | -- | 5,050–5,800 |
| Plugged | BERRY, JOE ET AL #3 | 42-163-30456 | WHITE CREEK ENERGY, INC. | Disposal | 8,000 | -- | 4,700–5,100 |
| Plugged | BERRY, JOE ET AL #3 | 42-163-30456 | GOUGER OIL CO. | Disposal | 8,000 | -- | 4,700–5,100 |
| Cancelled | KIEFER #2D | 42-163-30421 | STRAND ENGY, L.C | Disposal | 7,200 | -- | 4,300–5,100 |
| Plugged | PANTHER HOLLOW #23D | 42-163-32241 | SANCHEZ-O'BRIEN OIL & GAS CORP | Disposal | 7,000 | -- | 4,690–4,740 |
| Plugged | LAZY T CATTLE CO. #1A | 42-163-31590 | V.A.C. PETROLEUM, INC. | Disposal | 6,500 | -- | 4,700–5,100 |
| Plugged | LAZY T CATTLE CO. #1B | 42-163-30359 | V.A.C. PETROLEUM, INC. | Disposal | 6,500 | -- | 4,710–5,100 |
| Plugged | WEST COAST FARMS #2 | 42-163-30586 | BAR-BELL, INC. | Disposal | 6,500 | -- | 5,430–5,560 |
| Plugged | HILDEBRAND SWD #5D | 42-163-32116 | LONESTAR OPER, LLC | Disposal | 6,000 | -- | 5,070–5,130 |
| Plugged | PANTHER HOLLOW #38 | 42-163-32886 | SANCHEZ-O'BRIEN OIL & GAS CORP | Disposal | 6,000 | -- | 4,650–4,850 |
| Plugged | HUCK #1 | 42-163-32653 | CHEYENNE RES | Disposal | 6,000 | -- | 5,050–5,300 |
| Plugged | HUCK, L.M. #1 | 42-163-00000 | CHEYENNE RES | Disposal | 6,000 | -- | 5,050–5,300 |
| Plugged | MARIA GALAN #1 | 42-163-30370 | C6 OPER, L.L.C | Disposal | 5,900 | -- | 4,450–4,600 |
| Plugged | ALLERKAMP, ERNEST E. #1W | 42-163-32075 | JENEX OPER CO OF TEXAS | Injection | 5,500 | -- | 3,195–3,210 |
| Plugged | WILDER, ALICE #1 | 42-163-30255 | FRIO SWD, INC. | Disposal | 5,000 | -- | 4,050–4,500 |
| Plugged | HEISER #1 | 42-163-31531 | CRYSTAL RESOURCES, INC | Disposal | 5,000 | -- | 4,900–5,600 |
| Plugged | HENLEY, HOWARD J. #1 | 42-163-30218 | GILLEY, SAM D. | Disposal | 5,000 | -- | 4,650–4,800 |
| Plugged | PARADISE #7 | 42-163-31708 | WILLIAMS, CLAYTON ENGY, INC | Disposal | 5,000 | -- | 4,378–4,490 |
| Plugged | VAUGHAN, C. C. #2 | 42-163-30233 | RAVEN SERVICES, INC. | Disposal | 5,000 | -- | 2,950–4,900 |
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.