Produced water and disposal in Frio County
Every injection and disposal permit in the county, what each well is permitted to take, what its operator reported, and who is reporting daily. Earthquakes in the area →
Frio County has 147 active injection and disposal wells, 24 of them permitted for disposal, with 452,100 barrels a day of permitted capacity.
Operators reported 15 million barrels injected on H-10 filings in the twelve months to June 2025, down 24% on the year before, about 9% of what the permits allow.
Pilot Water Solutions SWD LLC is the largest injector in the county, with 4.6 million barrels reported across 1 active well.
TexNet located 412 M2+ earthquakes in the county's area over the last two years, the largest M3.6.
- 147
- active injection wells, 24 for disposal
- 452K
- bbl/d permitted capacity
- 14.6M
- bbl reported, H-10 year to Jun 2025 -24%
- 9%
- of permitted capacity used
- 554
- UIC permits on file, all time
Reported injection, by month
H-10 FILINGS · TEN YEARS TO JUN 2025
Last 12 months 14,598,917 · prior 12 19,149,249(-24%)
Who injects here
Operators with active permits in the county, by reported H-10 volume over the settled year.
| Operator | Reported, bbl | Active wells | Capacity bbl/d |
|---|---|---|---|
| Pilot Water Solutions SWD LLC | 4.59M | 1 | 40K |
| Select Water Solutions, LLC | 2.29M | 2 | 33K |
| NGL Watersolutions Eagleford,llc | 2.14M | 3 | 60K |
| Bigfoot Oil LLC | 1.73M | 5 | 18.5K |
| Tree Oper, LLC | 1.33M | 1 | 25K |
| Mid River Midstream LLC | 705K | 1 | 10K |
| Rclj Construction, Inc | 510K | 2 | 35K |
| MKS Services, LLC | 481K | 2 | 50K |
| Fulcrum Energy Operating, LLC | 303K | 1 | 3.5K |
| Silver Anchor Resources LLC | 265K | 1 | 4K |
| Flint Oak Engy, LLC | 98K | 1 | 15K |
| Trinity Oper (Usg), LLC | 42K | 1 | 3K |
| C6 Oper, L.L.C | 34.6K | 1 | 2K |
| Arrco Operating, LLC | 17.7K | 1 | 1.5K |
| Formentera Operations LLC | 15.1K | 3 | 60K |
| LP Oper, LLC | 9.58K | 2 | 800 |
| First Rock, Inc | — | 1 | 25K |
| Nec Oper, LLC | — | 1 | 25K |
| Maverick Engy Group, Inc | — | 95 | 11.1K |
| Watson Engy Investments, LLC | — | 13 | 7.9K |
Injection permits
554 UIC PERMITS · 147 ACTIVE · PAGE 2 OF 6
Active permits first, by reported volume, then cancelled, plugged, and never-activated permits.
| Well | Operator | Status | Purpose | Reported, bbl | bbl/d permitted | Zone, ft | Permitted |
|---|---|---|---|---|---|---|---|
| Big Foot Olmos B Sand Unit #108 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,211–3,262 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #110 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,224–3,284 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #118 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,190–3,215 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #120 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,208–3,257 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #126 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,251–3,298 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #135 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,235–3,280 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #144 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,210–3,247 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #149 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,249–3,297 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #151 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,279–3,329 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #156 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,215–3,277 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #158 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,222–3,266 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #216 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,166–3,191 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #218 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,185–3,220 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #273 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,207–3,259 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #277 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,299–3,360 | Jan 9, 2020 |
| Big Foot Olmos B Sand Unit #292 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,204–3,226 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #293 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,214–3,263 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #296 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,294–3,353 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #297 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,319–3,378 | Jan 7, 2020 |
| Big Foot Olmos B Sand Unit #298 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,345–3,398 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #301 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,458–3,474 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #309 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,217–3,251 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #311 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,284–3,345 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #312 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,306–3,349 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #314 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,362–3,411 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #317 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,477–3,503 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #326 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,341–3,388 | Aug 23, 2019 |
| Big Foot Olmos B Sand Unit #328 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,361–3,410 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #330 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,407–3,446 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #332 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,510–3,542 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #337 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,340–3,365 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #341 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,400–3,447 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #348 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,308–3,318 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #352 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,352–3,379 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #354 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,390–3,424 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #365 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,353–3,389 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #367 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,383–3,412 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #369 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,431–3,476 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #371 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,486–3,515 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #373 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,518–3,550 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #380 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,380–3,420 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #387 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,529–3,559 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #400 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,533–3,566 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #401 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,351–3,359 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #403 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,406–3,437 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #408 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,449–3,482 | May 1, 1992 |
| Big Foot Olmos B Sand Unit #1 | Maverick Engy Group, Inc | Active | Enhanced recovery | — | 100 | 3,077–3,125 | May 1, 1992 |
| Johnston -B- #3 | Silver Rock Energy, LLC | Cancelled | Enhanced recovery | 32K | 500 | 5,036–8,576 | Mar 7, 1995 |
| Frio SWD #3 | Milestone Enviro Services, LLC | Cancelled | Disposal | — | 20,000 | 5,100–5,400 | Feb 22, 2022 |
| Stewart #1 | Arete Oper Co, LLC | Inactive | Disposal | — | 400 | 3,920–3,955 | Oct 30, 2025 |
| Dilley SWD #1 | Charles Holston, Inc | Cancelled | Disposal | — | 25,000 | 7,550–8,700 | Jun 18, 2013 |
| Ses Frio SWD #2 | Select Engy Services, LLC | Cancelled | Disposal | — | 25,000 | 7,700–12,000 | Jul 13, 2012 |
| Brice #2 | Bosque Disposal Systems, LLC | Cancelled | Disposal | — | 25,000 | 5,000–6,000 | Aug 20, 2012 |
| Cat-Dilley SWD #3 | Trinity Environmental Swd,l.l.c | Cancelled | Disposal | — | 25,000 | 5,400–6,500 | Feb 10, 2014 |
| Graff Derby SWD #1 | Sable Environmental, LLC | Cancelled | Disposal | — | 25,000 | 4,000–5,300 | Jun 13, 2014 |
| Lehman SWD #2 | Pyote Well Service, LLC | Cancelled | Disposal | — | 25,000 | 6,550–9,500 | Dec 15, 2014 |
| McKinley, Art #4 | Baxter, Kelly H | Cancelled | Disposal | — | 20,000 | 4,620–4,650 | Apr 20, 1993 |
| Dilley Unit "C" #1 | Rclj Construction, Inc | Plugged | Disposal | — | 20,000 | 4,900–6,000 | Dec 19, 2006 |
| Good #1 | Pro Field Services, Inc | Cancelled | Disposal | — | 20,000 | 4,600–6,000 | Feb 8, 2011 |
| Hausser #2SW | SN Oper, LLC | Cancelled | Disposal | — | 20,000 | 6,800–9,800 | Aug 24, 2016 |
| Frio SWD #2 | Milestone Enviro Services, LLC | Cancelled | Disposal | — | 20,000 | 5,100–5,400 | Dec 15, 2016 |
| Stickers SWD #1 #1 | Select Engy Services, LLC | Cancelled | Disposal | — | 20,000 | 4,900–5,100 | Jan 30, 2023 |
| Klopek #1 | Omber Petro & Engy Corp | Cancelled | Disposal | — | 15,000 | 5,090–5,200 | May 20, 1991 |
| Frio County School Land #5 | DSD-Frio Environmental, Inc. | Plugged | Disposal | — | 15,000 | 4,500–6,000 | Apr 4, 2012 |
| Frio County School Land #6 | DSD-Frio Environmental, Inc. | Plugged | Disposal | — | 15,000 | 4,500–6,000 | Oct 29, 2012 |
| Burns, Jane #E 2 | Maverick Engy Group, Inc | Cancelled | Disposal | — | 12,000 | 3,456–3,490 | Apr 18, 1998 |
| Allerkamp, Ernest E. #1 | Jenex Oper Co of Texas | Cancelled | Enhanced recovery | — | 12,000 | 4,280–4,380 | Jun 6, 1991 |
| Allerkamp #1 | Jenex Oper Co of Texas | Cancelled | Enhanced recovery | — | 12,000 | 4,276–4,352 | Jun 6, 1991 |
| Allerkamp #2 | Jenex Oper Co of Texas | Cancelled | Enhanced recovery | — | 12,000 | 4,280–4,380 | Jun 6, 1991 |
| Cemetery Road Disposal #1 | Express Oil and Gas | Cancelled | Disposal | — | 10,500 | 4,975–5,090 | Apr 15, 1991 |
| Knappick, Fred #1D | Well Solutions, Inc. | Cancelled | Disposal | — | 10,000 | 5,090–5,200 | Sep 10, 1990 |
| Battaglia, Vivian #2 | 4 Corners SWD, Inc. | Cancelled | Disposal | — | 10,000 | 5,020–5,750 | Mar 8, 1993 |
| Huck, L.M. Etal #1 | Exxcel Operating Company | Cancelled | Disposal | — | 10,000 | 5,050–5,300 | Jan 16, 1991 |
| Hurt #1D | Key Engy Services,inc GCD | Cancelled | Disposal | — | 10,000 | 4,920–5,032 | May 3, 1991 |
| Hearrell, C.W. #1 | Parkway Petro, Inc | Cancelled | Disposal | — | 10,000 | 4,300–4,400 | Oct 23, 1991 |
| Maria SWD #1 | Mariah Engy Corp | Cancelled | Disposal | — | 10,000 | 5,050–5,800 | Jun 29, 1990 |
| Barnhart, Artie #2 | Lone Star Oper Co | Cancelled | Disposal | — | 10,000 | 4,340–4,480 | Dec 6, 1991 |
| Maria #1 | Tide West Oil Co | Cancelled | Other | — | 10,000 | 5,050–5,800 | — |
| Goforth SWD #1H | Select Engy Services, LLC | Plugged | Disposal | — | 10,000 | 5,325–5,825 | Oct 23, 2008 |
| Leppard, Annie Mae #1 | Johnson Sanford OP Co., Ltd | Plugged | Disposal | — | 10,000 | 4,800–5,100 | Sep 7, 2007 |
| Lehman #1 | Cohort Petro Management, LLC | Cancelled | Disposal | — | 10,000 | 4,580–5,160 | Oct 24, 2016 |
| Rally Petroleum #4H | Mueller Expl, Inc | Inactive | Disposal | — | 10,000 | 4,846–5,452 | Aug 9, 2023 |
| Berry, Joe et AL #3 | White Creek Energy, Inc. | Cancelled | Disposal | — | 8,000 | 4,700–5,100 | Jan 19, 1994 |
| Berry, Joe et AL #3 | Gouger Oil Co. | Cancelled | Disposal | — | 8,000 | 4,700–5,100 | Oct 31, 1991 |
| Kiefer #2D | Strand Engy, L.C | Cancelled | Disposal | — | 7,200 | 4,300–5,100 | Jan 27, 1997 |
| Panther Hollow #23D | Sanchez-O'Brien Oil & Gas Corp | Cancelled | Disposal | — | 7,000 | 4,690–4,740 | Dec 7, 1992 |
| Lazy T Cattle Co. #1A | V.A.C. Petroleum, Inc. | Cancelled | Disposal | — | 6,500 | 4,700–5,100 | Jul 24, 1991 |
| Lazy T Cattle Co. #1B | V.A.C. Petroleum, Inc. | Cancelled | Disposal | — | 6,500 | 4,710–5,100 | Aug 13, 1991 |
| West Coast Farms #2 | Bar-Bell, Inc. | Cancelled | Disposal | — | 6,500 | 5,430–5,560 | Aug 2, 1991 |
| Huck #1 | Cheyenne Res | Cancelled | Disposal | — | 6,000 | 5,050–5,300 | Aug 30, 1990 |
| Hildebrand SWD #5D | Lonestar Oper, LLC | Plugged | Disposal | — | 6,000 | 5,070–5,130 | Dec 5, 1990 |
| Panther Hollow #38 | Sanchez-O'Brien Oil & Gas Corp | Cancelled | Disposal | — | 6,000 | 4,650–4,850 | Nov 3, 1994 |
| Huck, L.M. #1 | Cheyenne Res | Cancelled | Disposal | — | 6,000 | 5,050–5,300 | Oct 19, 1990 |
| Maria Galan #1 | C6 Oper, L.L.C | Plugged | Disposal | — | 5,900 | 4,450–4,600 | Feb 6, 2013 |
| Allerkamp, Ernest E. #1W | Jenex Oper Co of Texas | Cancelled | Enhanced recovery | — | 5,500 | 3,195–3,210 | Jan 4, 1991 |
| Vaughan, C. C. #2 | Raven Services, Inc. | Cancelled | Disposal | — | 5,000 | 2,950–4,900 | Jun 24, 1992 |
| Riggs #1W | Crude Processing, Inc | Cancelled | Disposal | — | 5,000 | 4,000–4,600 | Dec 22, 1983 |
| Riggan, J.M. Jr. #1D | Lease Rollover Operations, Inc. | Cancelled | Disposal | — | 5,000 | 4,225–4,241 | Feb 5, 1985 |
| Fee -A- #3 | Williams, Clayton Engy, Inc | Cancelled | Disposal | — | 5,000 | 4,478–4,590 | Jul 30, 1990 |
| Paradise #7 | Williams, Clayton Engy, Inc | Cancelled | Disposal | — | 5,000 | 4,378–4,490 | Aug 30, 1990 |
Latest disposal drilling permits
W-1 drilling permits in the county tagged as produced-water disposal.
| Issued | Permit | Operator | Lease / well |
|---|---|---|---|
| Sep 7, 2021 | 872510 | Pilot Water Solutions SWD LLC | Wilmeth SWD #1 16334266 |
| Jan 29, 2015 | 802260 | C6 Operating, L.L.C. | King SWD #2 16331552 |
| Feb 25, 2013 | 757322 | Eagle Ford Water and Disposl LLC | Dilley-SWD #2A 16333695 |
| Feb 25, 2013 | 757322 | Tree Operating, LLC | Dilley-SWD #2A 16333695 |
| Nov 21, 2012 | 746956 | Bosque Disposal Systems, LLC | Brice SWD #2 16333648 |
| Oct 29, 2012 | 748255 | Foxborough Energy Company, LLC | Foxborough SWD #1 16333664 |
| Oct 15, 2012 | 749552 | Catarina Salt Water Disposal,llc | Cat-Dilley SWD #3 16333662 |
| Sep 26, 2012 | 748438 | MKS Services, LLC | MKS SWD #2 16333655 |
| Sep 26, 2012 | 748437 | MKS Services, LLC | MKS SWD #1 16333656 |
| Sep 21, 2012 | 748131 | Charles Holston, Inc. | Dilley SWD #1 16333653 |
About this data
RRC UIC well master and H-10 injection reports, settled through Jun 2025; TexNet daily injection for the last settled month; disposal permit tags from Petrora's sector classifier.
Developers: this page as JSON is GET /v1/data/water/tx/frio, documented in the API reference.