Produced water and disposal in Refugio 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 →
Refugio County has 231 active injection and disposal wells, 90 of them permitted for disposal, with 2.1 million barrels a day of permitted capacity.
Operators reported 74 million barrels injected on H-10 filings in the twelve months to June 2025, down 11% on the year before, about 10% of what the permits allow.
Hilcorp Energy Company is the largest injector in the county, with 51 million barrels reported across 143 active wells.
- 231
- active injection wells, 90 for disposal
- 2.11M
- bbl/d permitted capacity
- 73.5M
- bbl reported, H-10 year to Jun 2025 -11%
- 10%
- of permitted capacity used
- 829
- UIC permits on file, all time
Reported injection, by month
H-10 FILINGS · TEN YEARS TO JUN 2025
Last 12 months 73,523,439 · prior 12 82,376,271(-11%)
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 |
|---|---|---|---|
| Hilcorp Energy Company | 51.4M | 143 | 1.5M |
| T-C Oil Company, LLC | 10.3M | 47 | 227K |
| Dorchester Operating Company LLC | 5.44M | 13 | 133K |
| Greta Operating Company LLC | 2.17M | 4 | 47.5K |
| South Texas Operating Company | 1.33M | 1 | 15K |
| Bent Wing Energy, LLC | 1.29M | 4 | 17K |
| Bes, Environmental Services,inc. | 461K | 1 | 25K |
| San Isidro Development Co, L. C. | 350K | 1 | 10K |
| Dewbre Petroleum Corporation | 333K | 2 | 2.4K |
| Allegiant Resources, LLC | 142K | 4 | 40K |
| Rising Star Energy Partners II, | 101K | 2 | 20K |
| Finaly Resources LLC | 85.1K | 1 | 3K |
| Paleo Oil Company LLC | 77.5K | 1 | 8K |
| Digital Operating Company LLC | 24.9K | 1 | 25K |
| Dallas Petroleum Group, LLC | 15.4K | 1 | 25K |
| Paloma Operating, LLC | 1.9K | 1 | 1K |
| Devon Energy Production Co, L.P. | — | 1 | 4K |
| 2 D Oil & Gas LLC | — | 1 | 1K |
| Salida Exploration, LLC | — | 1 | 800 |
| Magnum Producing, LP | — | 1 | 750 |
Injection permits
829 UIC PERMITS · 231 ACTIVE · PAGE 2 OF 9
Active permits first, by reported volume, then canceled, plugged, and never-activated permits.
| Well | Operator | Status | Purpose | Reported, bbl | bbl/d permitted | Zone, ft | Permitted |
|---|---|---|---|---|---|---|---|
| T-C Oil Co.-O'Connor #63 | T-C Oil Company, LLC | Active | Disposal | 79.2K | 6,000 | 3,670–3,980 | Nov 5, 2013 |
| Williams, Maude, Etal -A- #53A | Hilcorp Energy Company | Active | Disposal | 79K | 5,000 | 3,385–3,429 | Apr 3, 1979 |
| Heard, A. W. J. #2 | Paleo Oil Company LLC | Active | Enhanced recovery | 77.5K | 8,000 | 4,942–5,584 | Jul 16, 2024 |
| Fagan #16 | Allegiant Resources, LLC | Active | Enhanced recovery | 71.3K | 10,000 | 3,180–4,062 | Aug 23, 2018 |
| Fagan #32 | Allegiant Resources, LLC | Active | Enhanced recovery | 71K | 10,000 | 3,190–4,080 | Jan 28, 2009 |
| O'Connor, Thomas "A" #5W | Hilcorp Energy Company | Active | Enhanced recovery | 65.8K | 10,000 | 5,665–5,799 | Dec 20, 2024 |
| Tom Oconnor (5800 SD) Fld. Unit #Q119E | Hilcorp Energy Company | Active | Enhanced recovery | 62.4K | 10,000 | 5,860–5,990 | Jul 11, 2025 |
| Tom Oconnor (5800 SD) Fld. Unit #Q243 | Hilcorp Energy Company | Active | Enhanced recovery | 59.1K | 4,000 | 5,811–5,821 | Feb 17, 1998 |
| O'Connor #10 | T-C Oil Company, LLC | Active | Enhanced recovery | 58.9K | 2,500 | 4,490–4,700 | Sep 1, 2011 |
| Rooke. B.D. #32 | Rising Star Energy Partners II, | Active | Disposal | 53.5K | 10,000 | 4,530–4,750 | Mar 8, 2007 |
| T-C Oil Co.- O'Connor #72 | T-C Oil Company, LLC | Active | Disposal | 50.4K | 2,500 | 3,430–4,000 | Oct 3, 2011 |
| Rooke. B.D. #48 | Rising Star Energy Partners II, | Active | Disposal | 47.3K | 10,000 | 4,530–4,760 | Mar 8, 2007 |
| O'Connor -H- #1 | T-C Oil Company, LLC | Active | Disposal | 37.9K | 3,000 | 3,907–3,911 | Apr 20, 2010 |
| Tom Oconnor (5800 SD) Fld. Unit #H059 | Hilcorp Energy Company | Active | Enhanced recovery | 32.1K | 10,000 | 5,769–5,812 | Mar 8, 2006 |
| Scanio, M #25 | Digital Operating Company LLC | Active | Enhanced recovery | 24.9K | 25,000 | 3,600–4,620 | Mar 3, 2014 |
| Heard, Claude E. et Al #41 | Hilcorp Energy Company | Active | Enhanced recovery | 22K | 10,000 | 4,350–4,420 | Jan 31, 2018 |
| Fox, W. J. -A- #18 | Hilcorp Energy Company | Active | Disposal | 20.3K | 10,000 | 3,570–3,900 | Mar 7, 2014 |
| Tom Oconnor (5800 SD) Fld. Unit #N111 | Hilcorp Energy Company | Active | Enhanced recovery | 15.7K | 5,000 | 5,725–5,825 | Sep 24, 1999 |
| Welder Ford #8 | Dallas Petroleum Group, LLC | Active | Enhanced recovery | 15.4K | 25,000 | 4,800–5,600 | Oct 20, 2016 |
| Heard, Clement #15 | Hilcorp Energy Company | Active | Disposal | 13.8K | 12,000 | 3,550–3,850 | Aug 28, 2002 |
| Dennis O'Connor et al -L- #L 13 | T-C Oil Company, LLC | Active | Disposal | 3.26K | 5,000 | 3,630–3,900 | Sep 6, 2007 |
| Tom O'Connor (5730 Ft. Sd.) Unit #C 4 | Hilcorp Energy Company | Active | Enhanced recovery | 2.77K | 5,000 | 5,870–5,935 | Jun 25, 2003 |
| Oconnor -H- #H 5 | T-C Oil Company, LLC | Active | Disposal | 2.72K | — | 4,435–4,780 | Jul 24, 1985 |
| Obrien,j.m.,-A- East 101 Ac. 6 #9 | Dewbre Petroleum Corporation | Active | Enhanced recovery | 2.47K | 1,200 | 4,300–4,400 | Mar 26, 2012 |
| Obrien, J. J., -B- #5 D | Greta Operating Company LLC | Active | Disposal | 2.12K | 10,000 | 3,450–3,850 | Jul 27, 1972 |
| John Mitchell #4 | Paloma Operating, LLC | Active | Disposal | 1.9K | 1,000 | 4,330–4,610 | Apr 29, 2005 |
| Williams, Maude, et al -B- #6 | Hilcorp Energy Company | Active | Enhanced recovery | 117 | 10,000 | 5,410–5,550 | Jul 12, 2018 |
| Tom Oconnor (5800 SD) Fld. Unit #P006G | Hilcorp Energy Company | Active | Disposal | — | 20,000 | 2,650–3,943 | Jun 29, 2006 |
| Oconnor, Thomas, -A- #102 | Hilcorp Energy Company | Active | Disposal | — | 20,000 | 3,690–4,010 | Jun 23, 2006 |
| Tom Oconnor (5800 SD) Fld. Unit #P072 | Hilcorp Energy Company | Active | Enhanced recovery | — | 20,000 | 4,400–4,480 | May 5, 2023 |
| Lambert, M.F. #40 | Hilcorp Energy Company | Active | Disposal | — | 20,000 | 2,875–4,025 | May 31, 2006 |
| O'Connor, Thomas -A- #42 | Hilcorp Energy Company | Active | Disposal | — | 20,000 | 3,600–3,925 | Aug 1, 2006 |
| Heard, Fannie V. W., Mrs. #56 | Hilcorp Energy Company | Active | Disposal | — | 15,000 | 3,100–3,790 | Jun 3, 2003 |
| Lambert, M. F. #G 8 | Hilcorp Energy Company | Active | Disposal | — | 15,000 | 2,900–3,847 | Sep 7, 2022 |
| Oconnor, Thomas -A- #6 | Hilcorp Energy Company | Active | Disposal | — | 15,000 | 3,475–3,800 | Mar 6, 2009 |
| Heard, J. F. B.- Tex #1 | Greta Operating Company LLC | Active | Enhanced recovery | — | 15,000 | 4,414–4,424 | Jan 25, 2001 |
| Heard, Fannie V. W. Mrs. #70 | Hilcorp Energy Company | Active | Disposal | — | 15,000 | 3,110–4,060 | Nov 7, 2005 |
| Tom Oconnor (5800 SD) Fld. Unit #Q913 | Hilcorp Energy Company | Active | Enhanced recovery | — | 15,000 | 5,690–5,890 | Aug 2, 2024 |
| Reilly, Annie et Vir #3G | Hilcorp Energy Company | Active | Disposal | — | 12,000 | 3,330–3,810 | Sep 30, 2002 |
| Oconnor, Thomas -A- #2SD | Hilcorp Energy Company | Active | Disposal | — | 12,000 | 3,455–3,480 | Jan 19, 1987 |
| O'Connor, Thomas "A" #105 | Hilcorp Energy Company | Active | Disposal | — | 12,000 | 3,650–4,050 | May 4, 2006 |
| Williams, Maude et al -A- #10 | Hilcorp Energy Company | Active | Disposal | — | 10,000 | 3,040–3,795 | Mar 8, 2023 |
| Tom O'Connor (4150 Ft. Sd.) Unit #W103A | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 4,130–4,185 | Feb 2, 2005 |
| Tom Oconnor (5800 SD) Fld. Unit #C110 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,795–5,813 | Sep 24, 2019 |
| Oconnor, Thomas -A- #101 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,870–5,970 | Apr 3, 2025 |
| Heard, Fannie V.W. #24 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 10,000 | 3,600–4,440 | May 20, 2010 |
| Tom O'Connor (4150 Ft. Sd.) Unit #W431A | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 4,126–4,180 | Nov 9, 2004 |
| Tom O'Connor (4150 Ft. Sd.) Unit #W924A | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 4,130–4,177 | Jan 6, 2005 |
| Lambert, M. F. #133 | Hilcorp Energy Company | Active | Disposal | — | 10,000 | 3,615–3,950 | Aug 31, 2005 |
| O'Brien, J.M. #312A | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 10,000 | 2,400–3,650 | Oct 13, 2006 |
| Heard, Fannie V.W. #30 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 10,000 | 3,200–3,800 | Feb 9, 2006 |
| O'Connor, Tom #4 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 10,000 | 2,865–4,200 | Jun 15, 2010 |
| Fagan #15 | Allegiant Resources, LLC | Active | Disposal | — | 10,000 | 3,190–4,080 | Jan 19, 2018 |
| Tom O'CONNOR(5600 Foot Sand)unit #W719UB | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,525–5,555 | Jun 27, 2011 |
| Tom Oconnor (5800 SD) Fld. Unit #Q118E | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,400–5,960 | Jul 11, 2025 |
| Tom Oconnor (5800 SD) Fld. Unit #Q612 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,739–5,805 | Jul 30, 2013 |
| Heard, Claude E. et Al #42 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 4,380–4,430 | Nov 19, 2014 |
| O'Connor, M. E. #11D | T-C Oil Company, LLC | Active | Enhanced recovery | — | 10,000 | 3,550–4,313 | Apr 28, 2015 |
| Tom O'CONNOR(5600 Foot Sand)unit #W443B | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,670–5,750 | Nov 4, 2016 |
| Tom Oconnor (5800 SD) Fld. Unit #Q443 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,770–5,920 | Nov 4, 2016 |
| Tom Oconnor (5800 SD) Fld. Unit #A019W | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,755–5,822 | May 12, 2017 |
| Fox, W. J. -A- #51 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,857–5,987 | Feb 23, 2018 |
| Tom Oconnor (5800 SD) Fld. Unit #P123 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,750–5,810 | Apr 4, 2018 |
| Lambert, M. F. #60 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,600–5,640 | Mar 11, 2022 |
| Williams, Maude, et al -A- #59W | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,430–5,560 | Jul 17, 2018 |
| Fagan #20 | Allegiant Resources, LLC | Active | Enhanced recovery | — | 10,000 | 3,180–4,060 | Aug 23, 2018 |
| Fox, W. J. -A- #50 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,825–5,954 | Oct 14, 2018 |
| Lambert, M. F. #159 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,590–5,760 | Mar 24, 2019 |
| Lambert E, M.F. #A 10 | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,630–5,700 | Sep 20, 2023 |
| Tom Oconnor (5800 SD) Fld. Unit #Q017E | Hilcorp Energy Company | Active | Enhanced recovery | — | 10,000 | 5,798–5,893 | Jan 30, 2025 |
| Obrien, J. M. #308 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 9,000 | 3,100–3,200 | Nov 12, 2003 |
| Heard, J.F.B. #9 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 9,000 | 3,100–3,900 | Jul 24, 2009 |
| Heard, J.F.B. #27 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 9,000 | 2,800–3,175 | Apr 28, 2004 |
| T-C Oil Co.-Oconnor #60 | T-C Oil Company, LLC | Active | Disposal | — | 8,000 | 3,466–3,546 | Aug 9, 1984 |
| Heard, J. F. B. #8 | Dorchester Operating Company LLC | Active | Enhanced recovery | — | 8,000 | 3,050–3,700 | Aug 5, 2004 |
| Fox, W. J. "B" #38 | Hilcorp Energy Company | Active | Disposal | — | 8,000 | 3,700–4,250 | May 31, 2006 |
| Obrien, J. J., -A- #5 | Greta Operating Company LLC | Active | Enhanced recovery | — | 7,500 | 4,350–4,500 | Aug 3, 1990 |
| O'Connor #69 | T-C Oil Company, LLC | Active | Disposal | — | 7,500 | 4,530–4,742 | Jun 26, 2019 |
| T-C Oil Co.-Oconnor #44 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 7,200 | 4,454–4,492 | Mar 21, 2001 |
| Tom Oconnor (5800 SD) Fld. Unit #C414 | Hilcorp Energy Company | Active | Disposal | — | 7,000 | 3,600–3,830 | Mar 31, 1992 |
| Williams, Maude, Etal -A- #D 1SW | Hilcorp Energy Company | Active | Disposal | — | 6,000 | 3,810–3,972 | Feb 10, 1986 |
| Tom Oconnor (5800 SD) Fld. Unit #C114 | Hilcorp Energy Company | Active | Enhanced recovery | — | 6,000 | 5,770–5,820 | Jan 7, 2020 |
| Williams, Maude et al -A- #D 60 | Hilcorp Energy Company | Active | Disposal | — | 6,000 | 3,725–3,910 | Dec 13, 1999 |
| WLP #3 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 6,000 | 4,486–4,526 | Apr 9, 2001 |
| Heard, Fannie V. W., Mrs. #1 | Hilcorp Energy Company | Active | Disposal | — | 5,000 | 3,204–3,234 | Jul 19, 1983 |
| Oconnor, Thomas -A- #95 | Hilcorp Energy Company | Active | Disposal | — | 5,000 | 3,002–3,040 | Apr 30, 1990 |
| Tom O'CONNOR(5800 SD) Field Unit #Q004 | Hilcorp Energy Company | Active | Disposal | — | 5,000 | 3,050–3,130 | Mar 22, 1979 |
| Tom O'Connor (5730 Ft. Sd.) Unit #A 5 | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 5,690–5,730 | Sep 19, 2000 |
| Tom O'Connor (5730 Ft. Sd.) Unit #A 8 | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 5,690–5,730 | May 20, 2002 |
| Schirmer, Etal #1 | Bent Wing Energy, LLC | Active | Disposal | — | 5,000 | 3,650–4,050 | Feb 20, 2008 |
| Lambert , M. F. #H130 | Hilcorp Energy Company | Active | Disposal | — | 5,000 | 3,644–3,950 | Jan 21, 1992 |
| Oconnor, Thomas, -A- #18 | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 5,770–5,830 | Jun 14, 2002 |
| Tom O'Connor (5730 Ft. Sd.) Unit #B 18 | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 5,765–5,790 | Feb 4, 2005 |
| O'Conner -D- #D 39 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 5,000 | 4,500–4,550 | Mar 10, 2006 |
| O'Conner -D- #D 45 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 5,000 | 4,500–4,550 | Mar 10, 2006 |
| O'Conner -D- #D 47 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 5,000 | 4,500–4,550 | Mar 10, 2006 |
| WLP #24 | T-C Oil Company, LLC | Active | Enhanced recovery | — | 5,000 | 4,514–4,562 | Mar 25, 2010 |
| Tom O'Connor (4150 Ft. Sd.) Unit #W035A | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 4,050–4,200 | May 15, 2018 |
| Lambert #4 | Devon Energy Production Co, L.P. | Active | Disposal | — | 4,000 | 3,804–3,904 | Dec 7, 1983 |
| Tom Oconnor (5800 SD) Fld. Unit #Q054 | Hilcorp Energy Company | Active | Enhanced recovery | — | 4,000 | 5,774–5,792 | Feb 17, 1998 |
Latest disposal drilling permits
W-1 drilling permits in the county tagged as produced-water disposal.
| Issued | Permit | Operator | Lease / well |
|---|---|---|---|
| Oct 1, 2026 | 919005 | Rising Star Energy Partners II, | Rooke. B.D. SWD #3 39133360 |
| Oct 1, 2026 | 919003 | Rising Star Energy Partners II, | Rooke. B.D. SWD #2 39133359 |
| Oct 1, 2026 | 919001 | Rising Star Energy Partners II, | Rooke. B.D. SWD #1 39133358 |
| Oct 29, 2013 | 772290 | Basic Energy Services, L.P. | Refugio SWD #2 39133086 |
| Jan 15, 1982 | 147541 | Amoco Production Company | Heard, Ira "A" #5 D 39100740 |
| Nov 25, 1980 | 100377 | Texas Oil & Gas Corp. | Spikes, Myra "D" #1D 39181785 |
| Nov 21, 1980 | 100125 | Texas Oil & Gas Corp. | Fagan, P. H. Estate "L" #1D 39181782 |
| Mar 21, 1980 | 75934 | Exxon Corp. | Heard, J. F. B. #9D 39100868 |
| Mar 12, 1980 | 75030 | Conoco Inc. | Welder, J. F. Heirs-R #6 39131161 |
| Mar 3, 1980 | 73988 | Amoco Production Company | O'Brien, J. M. "A" #6 D 39130189 |
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/refugio, documented in the API reference.