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 | WILMETH SWD #1 | 42-163-34266 | PILOT WATER SOLUTIONS SWD LLC | Injection | 40,000 | 4.6M | 7,860–8,450 |
| Active | LEA SWD #1 | 42-163-33514 | NGL WATERSOLUTIONS EAGLEFORD,LLC | Injection | 15,000 | 2.1M | 4,800–6,000 |
| Active | SES FRIO SWD #1 | 42-163-33465 | SELECT WATER SOLUTIONS, LLC | Injection | 25,000 | 1.5M | 5,000–5,400 |
| Active | DILLEY-SWD #2A | 42-163-33695 | TREE OPER, LLC | Disposal | 25,000 | 1.3M | 4,900–6,000 |
| Active | PEARSALL SWD #1 | 42-163-33454 | SELECT WATER SOLUTIONS, LLC | Injection | 8,000 | 791,280 | 4,300–4,600 |
| Active | CAT-DILLEY SWD #2 | 42-163-33583 | MID RIVER MIDSTREAM LLC | Disposal | 10,000 | 705,439 | 5,400–6,000 |
| Active | ALLERKAMP, ERNEST E. #1H | 42-163-32985 | BIGFOOT OIL LLC | Injection | 5,000 | 648,000 | 3,917–3,927 |
| Active | HALFF & OPPENHEIMER #1 R | 42-163-33253 | BIGFOOT OIL LLC | Injection | 5,000 | 363,000 | 3,914–4,200 |
| Active | HALFF & OPPENHEIMER #216 | 42-163-32187 | BIGFOOT OIL LLC | Injection | 2,500 | 363,000 | 3,905–3,922 |
| Active | MELMS ESTATE #1H | 42-163-34113 | BIGFOOT OIL LLC | Injection | 5,000 | 360,000 | 3,856–3,950 |
| Active | MKS SWD #2 | 42-163-33655 | MKS SERVICES, LLC | Disposal | 25,000 | 354,265 | 4,900–6,000 |
| Active | HAT CREEK HM 05 #101V | 42-163-33654 | FULCRUM ENERGY OPERATING, LLC | Disposal | 3,500 | 302,791 | 6,590–7,800 |
| Active | KNAPPICK #1 | 42-163-32715 | RCLJ CONSTRUCTION, INC | Disposal | 25,000 | 301,768 | 4,900–6,000 |
| Active | STOUT "A" #2 | 42-163-31975 | SILVER ANCHOR RESOURCES LLC | Disposal | 4,000 | 265,455 | 4,874–5,500 |
| Active | NEW WITTMAN #1 | 42-163-32760 | RCLJ CONSTRUCTION, INC | Disposal | 10,000 | 207,982 | 4,650–5,240 |
| Active | MKS SWD #1 | 42-163-33656 | MKS SERVICES, LLC | Disposal | 25,000 | 126,849 | 4,900–6,000 |
| Active | JOHNSTON RANCH #10H | 42-163-33810 | FLINT OAK ENGY, LLC | Disposal | 15,000 | 97,997 | 4,043–4,210 |
| Active | SHINER RANCH #7 | 42-163-33106 | TRINITY OPER (USG), LLC | Disposal | 3,000 | 41,976 | 5,530–5,800 |
| Active | KING, J.H. KING -E- #4 | 42-163-31806 | C6 OPER, L.L.C | Disposal | 2,000 | 34,560 | 4,500–4,525 |
| Active | MAYO #2 | 42-163-30730 | ARRCO OPERATING, LLC | Disposal | 1,500 | 17,720 | 3,900–3,940 |
| Active | HAUSSER #1SW | 42-163-33951 | FORMENTERA OPERATIONS LLC | Injection | 20,000 | 12,955 | 6,410–9,800 |
| Active | HITZFELDER #12 | 42-163-33290 | LP OPER, LLC | Injection | 400 | 9,575 | 2,622–2,632 |
| Active | MELLO 308-STX #A311VW | 42-163-34346 | FORMENTERA OPERATIONS LLC | Disposal | 20,000 | 2,131 | 4,860–5,285 |
| Active | PEARSALL SWD #1 | 42-163-33524 | NGL WATERSOLUTIONS EAGLEFORD,LLC | Injection | 30,000 | -- | 4,000–4,800 |
| Active | FF DILLEY SWD #1 | 42-163-33636 | NEC OPER, LLC | Disposal | 25,000 | -- | 4,900–5,660 |
| Active | DILLEY UNIT -A- #1 | 42-163-32642 | FIRST ROCK, INC | Disposal | 25,000 | -- | 4,900–6,000 |
| Active | G2 845-846-STX #C311VW | 42-163-34366 | FORMENTERA OPERATIONS LLC | Disposal | 20,000 | -- | 4,520–4,965 |
| Active | LEA SWD #2 | 42-163-33629 | NGL WATERSOLUTIONS EAGLEFORD,LLC | Injection | 15,000 | -- | 4,800–6,000 |
| Active | FRIO SWD #1 | 42-163-33622 | EAGLE FORD WATER AND DISPOSL LLC | Disposal | 7,500 | -- | 5,100–5,400 |
| Active | LANCASTER AGI #1 | 42-163-33468 | TARGA SOUTHTEX MDSTRM UTILITY LP | Disposal | 3,500 | -- | 8,400–9,850 |
| Active | MORALES, FRED #3 | 42-163-32278 | BLACKBRUSH O & G, LLC | Disposal | 2,000 | -- | 5,350–5,551 |
| Active | HARRIS, JOHN W. (MEYERS) #1 | 42-163-32670 | ENHANCED RS, INC | Injection | 1,000 | -- | 5,000–6,000 |
| Active | MELMS ESTATE #2 | 42-163-32070 | BIGFOOT OIL LLC | Injection | 1,000 | -- | 3,900–4,300 |
| Active | KEYSTONE/KEYSTONE RANCH #4 | 42-163-31740 | OILFIELD CLEANTECH WATER REC LLC | Disposal | 800 | -- | 4,776–5,368 |
| Active | DAVIS, RUTH DAKIN #1 | 42-163-31942 | BLOCK "T" PETRO, INC | Disposal | 500 | -- | 4,900–6,000 |
| Active | HITZFELDER #13 | 42-163-33287 | LP OPER, LLC | Injection | 400 | -- | 2,570–2,576 |
| Active | BURNS, JANE #1D | 42-163-31963 | WATSON ENGY INVESTMENTS, LLC | Disposal | 4,500 | -- | 3,300–3,800 |
| Active | BURNS, JANE A #242 | 42-163-00997 | DIAMOND ENERGY SERVICES, LP | Injection | 3,000 | -- | 3,542–3,571 |
| Active | CASEY FRIO B #1 | 42-163-32613 | MOSAIC TEXAS LLC | Disposal | 2,000 | -- | 4,050–5,200 |
| Active | BURNS, JANE #44D | 42-163-00140 | WATSON ENGY INVESTMENTS, LLC | Disposal | 1,500 | -- | 3,225–3,260 |
| Active | BURNS, JANE #40W | 42-163-01623 | DIAMOND ENERGY SERVICES, LP | Injection | 1,500 | -- | 3,480–3,515 |
| Active | DAVIES, S. B. #1 | 42-163-30193 | MAVERICK ENGY GROUP, INC | Injection | 500 | -- | 3,944–3,970 |
| Active | BIG FOOT OLMOS B SAND UNIT #125I | 42-163-00976 | MAVERICK ENGY GROUP, INC | Injection | 400 | -- | 3,200–3,350 |
| Active | BIG FOOT OLMOS B SAND UNIT #115 | 42-163-00974 | MAVERICK ENGY GROUP, INC | Injection | 400 | -- | 3,276–3,341 |
| Active | BIG FOOT OLMOS B SAND UNIT #138I | 42-163-00456 | MAVERICK ENGY GROUP, INC | Injection | 400 | -- | 3,200–3,350 |
| Active | BIG FOOT OLMOS B SAND UNIT #69 | 42-163-00501 | MAVERICK ENGY GROUP, INC | Injection | 400 | -- | 3,200–3,500 |
| Active | ROSENAUER, MATTIE #16 | 42-163-32465 | WATSON ENGY INVESTMENTS, LLC | Injection | 300 | -- | 3,400–3,600 |
| Active | ROSENAUER, MATTIE #1I | 42-163-00264 | WATSON ENGY INVESTMENTS, LLC | Injection | 300 | -- | 3,400–3,600 |
| Active | ROSENAUER, MATTIE #4I | 42-163-00269 | WATSON ENGY INVESTMENTS, LLC | Injection | 300 | -- | 3,400–3,600 |
| Active | ROSENAUER, MATTIE #15I | 42-163-32468 | WATSON ENGY INVESTMENTS, LLC | Injection | 300 | -- | 3,400–3,600 |
| Active | BIG FOOT OLMOS B SAND UNIT #218 | 42-163-00366 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,185–3,220 |
| Active | BIG FOOT OLMOS B SAND UNIT #162 | 42-163-80212 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,313–3,375 |
| Active | BIG FOOT OLMOS B SAND UNIT #16 | 42-163-80149 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,138–3,169 |
| Active | BIG FOOT OLMOS B SAND UNIT #17 | 42-163-01679 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,145–3,175 |
| Active | BIG FOOT OLMOS B SAND UNIT #373 | 42-163-00382 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,518–3,550 |
| Active | BIG FOOT OLMOS B SAND UNIT #172 | 42-163-00454 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,236–3,269 |
| Active | BIG FOOT OLMOS B SAND UNIT #337 | 42-163-00297 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,340–3,365 |
| 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 #273 | 42-163-00544 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,207–3,259 |
| 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 | 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 #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 #126 | 42-163-80185 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,251–3,298 |
| Active | BIG FOOT OLMOS B SAND UNIT #1 | 42-163-80140 | MAVERICK ENGY GROUP, INC | Injection | 100 | -- | 3,077–3,125 |
| 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 #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 |
page 1 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.