Produced water and disposal in Matagorda 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 →
Matagorda County has 80 active injection and disposal wells, 41 of them permitted for disposal, with 1.1 million barrels a day of permitted capacity.
Operators reported 4.2 million barrels injected on H-10 filings in the twelve months to June 2025, down 14% on the year before, about 1% of what the permits allow.
Allegiant Res, LLC is the largest injector in the county, with 2.1 million barrels reported across 11 active wells.
- 80
- active injection wells, 41 for disposal
- 1.08M
- bbl/d permitted capacity
- 4.22M
- bbl reported, H-10 year to Jun 2025 -14%
- 1%
- of permitted capacity used
- 390
- UIC permits on file, all time
Reported injection, by month
H-10 FILINGS · TEN YEARS TO JUN 2025
Last 12 months 4,222,141 · prior 12 4,893,929(-14%)
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 |
|---|---|---|---|
| Allegiant Res, LLC | 2.11M | 11 | 135K |
| Texian Operating Company, LLC | 1.49M | 4 | 28.5K |
| Midfield SWD, LLC | 377K | 2 | 21K |
| Ponderosa Oil & Gas, LLC | 199K | 2 | 10K |
| Rusk Engy Oper LLC | 26.7K | 1 | 3K |
| Rumble Energy LLC | 12.6K | 1 | 1.5K |
| Reo Oper LLC | 1.72K | 1 | 400 |
| KZ Global Energy, LLC | 635 | 2 | 1.6K |
| Qri Industries, Inc. | 564 | 1 | 200 |
| Trinidad Res, LLC | 42 | 2 | 16K |
| Underground Services Markham,llc | — | 15 | 550K |
| Atlas Oper LLC | — | 4 | 96K |
| Enterprise Underground St OP | — | 2 | 90K |
| Tres Palacios Gas Storage LLC | — | 4 | 52K |
| Oak Engy, LLC | — | 6 | 33.8K |
| Hugoton Oper Co, Inc | — | 2 | 17.5K |
| Kirkpatrick, John Oil LLC | — | 3 | 6.8K |
| Proline Energy Resources Inc | — | 1 | 5K |
| Seadrift Pipeline, LLC | — | 3 | 4.65K |
| Hilcorp Engy Co | — | 1 | 3K |
Injection permits
390 UIC PERMITS · 80 ACTIVE · PAGE 1 OF 4
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 |
|---|---|---|---|---|---|---|---|
| Ohio-Sun Unit #12K | Allegiant Res, LLC | Active | Disposal | 1.07M | 15,000 | 2,000–5,600 | Jan 13, 2020 |
| Cobb, F. G. -B- #36 | Texian Operating Company, LLC | Active | Disposal | 1.04M | 6,000 | 2,530–5,750 | Aug 6, 1997 |
| Ohio-Sun Unit #18F | Allegiant Res, LLC | Active | Disposal | 545K | 6,000 | 2,640–5,500 | Nov 12, 2003 |
| Ohio-Sun Unit #14K | Allegiant Res, LLC | Active | Disposal | 493K | 15,000 | 2,000–5,600 | Jan 13, 2020 |
| Cobb, F. G. -B- #41 | Texian Operating Company, LLC | Active | Disposal | 459K | 10,000 | 1,650–4,200 | Jan 28, 2011 |
| T. B. Bures #1 | Midfield SWD, LLC | Active | Disposal | 377K | 15,000 | 2,430–2,770 | Dec 22, 2009 |
| Taylor #3 | Ponderosa Oil & Gas, LLC | Active | Disposal | 191K | 5,000 | 1,800–3,000 | Nov 19, 2020 |
| Cleveland, May #5 | Rusk Engy Oper LLC | Active | Disposal | 26.7K | 3,000 | 1,750–2,200 | Jun 28, 2012 |
| Cornelius, L. #2D | Rumble Energy LLC | Active | Disposal | 12.6K | 1,500 | 1,925–4,050 | May 27, 2003 |
| Norris #1 | Ponderosa Oil & Gas, LLC | Active | Disposal | 7.64K | 5,000 | 2,380–4,000 | Apr 9, 2021 |
| Hudson, C. M. "A" #16 | Reo Oper LLC | Active | Disposal | 1.72K | 400 | 3,516–3,570 | Mar 28, 1995 |
| Ohio-Sun Unit #26J | Allegiant Res, LLC | Active | Disposal | 1.5K | 15,000 | 2,670–3,650 | Jun 23, 2003 |
| Myers, N. R. #9 | KZ Global Energy, LLC | Active | Enhanced recovery | 635 | 1,500 | 2,209–2,211 | Jan 14, 2008 |
| Smith, Howard, Fee #16W | Qri Industries, Inc. | Active | Enhanced recovery | 564 | 200 | 1,482–1,491 | May 11, 2006 |
| Northern Ranch #10 | Trinidad Res, LLC | Active | Enhanced recovery | 26 | 8,000 | 2,000–5,470 | Apr 5, 2002 |
| Northern Ranch #9 | Trinidad Res, LLC | Active | Enhanced recovery | 16 | 8,000 | 2,000–5,470 | Sep 21, 1999 |
| Burkhart Gas Unit #3 | Atlas Oper LLC | Active | Disposal | — | 75,000 | 3,480–4,270 | Oct 3, 2006 |
| Ohio-Sun Unit #10K | Allegiant Res, LLC | Active | Disposal | — | 15,000 | 2,010–5,350 | Mar 31, 1997 |
| Ohio-Sun Unit #13K | Allegiant Res, LLC | Active | Disposal | — | 15,000 | 2,050–5,475 | Apr 4, 1997 |
| Ohio-Sun Unit #20J | Allegiant Res, LLC | Active | Disposal | — | 15,000 | 2,100–2,870 | Jul 9, 1993 |
| Culbertson, W. J. #4 | Oak Engy, LLC | Active | Disposal | — | 15,000 | 5,200–6,100 | Apr 30, 1987 |
| Ohio Sun Unit #2E | Allegiant Res, LLC | Active | Disposal | — | 15,000 | 2,000–5,470 | Jun 13, 1997 |
| McWilliams GU #2D | Atlas Oper LLC | Active | Disposal | — | 12,000 | 2,150–6,400 | Nov 5, 2008 |
| Ohio-Sun Unit #17J | Allegiant Res, LLC | Active | Disposal | — | 8,000 | 2,048–3,978 | Feb 14, 1986 |
| Ohio-Sun Unit #9F | Allegiant Res, LLC | Active | Disposal | — | 8,000 | 1,750–2,180 | Feb 28, 1994 |
| Ohio-Sun Unit #12EU | Allegiant Res, LLC | Active | Disposal | — | 8,000 | 2,000–3,100 | Sep 23, 1993 |
| Moore Estate #15 | Texian Operating Company, LLC | Active | Disposal | — | 8,000 | 2,500–5,180 | Apr 16, 2004 |
| Blessing Pierce (-S- Unit) #83 | Hugoton Oper Co, Inc | Active | Disposal | — | 7,500 | 1,950–5,100 | Aug 3, 2001 |
| Metzger Gas Unit #3 | Atlas Oper LLC | Active | Disposal | — | 6,000 | 3,730–3,956 | Nov 29, 2011 |
| Richers, Alfred B. #1 | Midfield SWD, LLC | Active | Disposal | — | 6,000 | 3,500–8,760 | Dec 16, 2002 |
| Grant, John F. #1D | Oak Engy, LLC | Active | Disposal | — | 5,000 | 1,550–1,690 | Oct 17, 2003 |
| Bunk NO 1 Pooled Unit #3I | Proline Energy Resources Inc | Active | Disposal | — | 5,000 | 2,100–4,000 | Aug 8, 2001 |
| Bouldin, Florence #1 | Oak Engy, LLC | Active | Disposal | — | 5,000 | 6,050–6,150 | May 19, 2008 |
| Cobb, F. G., -B- #15 | Texian Operating Company, LLC | Active | Disposal | — | 4,500 | 1,650–3,450 | Mar 7, 2007 |
| Braman -C- #2D | Oak Engy, LLC | Active | Disposal | — | 3,500 | 3,150–3,185 | Mar 1, 1978 |
| Old Ocean Unit #54 | Hilcorp Engy Co | Active | Disposal | — | 3,000 | 6,250–6,600 | Jul 16, 1990 |
| Linnville SWD #1 | 84 Engy LLC | Active | Disposal | — | 3,000 | 1,920–3,100 | May 29, 2014 |
| Braman -C- #2D | Oak Engy, LLC | Active | Disposal | — | 2,800 | 1,900–3,200 | Feb 6, 2012 |
| Laurence, G. #7 | Oak Engy, LLC | Active | Disposal | — | 2,500 | 1,850–2,663 | Apr 14, 1997 |
| Trull #11 | Tres Palacios Gas Storage LLC | Active | Other | — | 52,000 | 3,600–5,700 | May 31, 2024 |
| Hiltpold-Easton #1 | Enterprise Underground St OP | Active | Other | — | 45,000 | 3,448–4,804 | Aug 11, 2022 |
| Hudson-Easton #3 | Enterprise Underground St OP | Active | Other | — | 45,000 | 2,752–5,570 | Aug 11, 2022 |
| Trull #6 | Underground Services Markham,llc | Active | Other | — | 45,000 | 3,100–7,300 | Dec 23, 2025 |
| Trull #5A | Underground Services Markham,llc | Active | Other | — | 45,000 | 2,475–6,300 | Dec 23, 2025 |
| H. Smith #10A | Underground Services Markham,llc | Active | Other | — | 41,143 | 3,210–7,350 | May 5, 2026 |
| Smith, Lewis Edwin et AL #5 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,130–6,600 | Dec 23, 2025 |
| Smith, Lewis Edwin et AL #6 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,135–6,600 | Dec 23, 2025 |
| Smith, Lewis Edwin et AL #7 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,250–6,600 | Dec 23, 2025 |
| Hudson #1 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,025–6,600 | Dec 23, 2025 |
| Hudson #4 | Underground Services Markham,llc | Active | Other | — | 40,000 | 2,900–6,600 | Dec 23, 2025 |
| Hiltpold #6 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,500–6,600 | Dec 23, 2025 |
| Hiltpold #08 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,500–6,600 | Dec 23, 2025 |
| Hiltpold #10 | Underground Services Markham,llc | Active | Other | — | 40,000 | 3,500–6,600 | Dec 23, 2025 |
| Hudson #2 | Underground Services Markham,llc | Active | Other | — | 34,285 | 3,100–6,600 | Dec 23, 2025 |
| Hudson #5 | Underground Services Markham,llc | Active | Other | — | 34,285 | 3,200–6,600 | Dec 23, 2025 |
| H. Smith #11 | Underground Services Markham,llc | Active | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| Koch State #35 | Hugoton Oper Co, Inc | Active | Disposal | — | 10,000 | 1,950–3,500 | Apr 22, 2015 |
| Wolf, Louis #B 1A | Kirkpatrick, John Oil LLC | Active | Disposal | — | 5,000 | 6,140–6,350 | Mar 26, 2008 |
| J. C Lewis SW #2 | Atlas Oper LLC | Active | Disposal | — | 3,000 | 3,300–3,900 | Aug 17, 1998 |
| Fee #1 | Seadrift Pipeline, LLC | Active | Other | — | 1,550 | 2,799–3,741 | Sep 11, 2024 |
| Fee #2LP | Seadrift Pipeline, LLC | Active | Other | — | 1,550 | 2,508–3,569 | Sep 11, 2024 |
| Fee #3LP | Seadrift Pipeline, LLC | Active | Other | — | 1,550 | 2,842–4,104 | Sep 11, 2024 |
| Wolf #2 | Kirkpatrick, John Oil LLC | Active | Disposal | — | 1,500 | 2,650–6,185 | Apr 6, 1995 |
| Krieger, Rooth #1 | Kebo Oil & Gas, Inc | Active | Enhanced recovery | — | 500 | 3,435–8,754 | Jun 9, 2022 |
| Louis Wolf #3 | Kirkpatrick, John Oil LLC | Active | Disposal | — | 300 | 2,260–2,280 | Feb 20, 1987 |
| Sisk 40 Acres #7 | KZ Global Energy, LLC | Active | Disposal | — | 100 | 2,960–2,992 | Oct 28, 1989 |
| Hiltpold - KM #2 | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,455–4,431 | Jul 25, 2023 |
| Smith,lewis Edwin #1 | Equistar Chemicals, LP | Active | Other | — | — | 3,416–6,600 | — |
| Smith,lewis Edwin #2 | Equistar Chemicals, LP | Active | Other | — | — | — | — |
| Smith,lewis Edwin #3 | Equistar Chemicals, LP | Active | Other | — | — | — | — |
| Hiltpold - KM #3 | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,275–5,376 | Feb 10, 2023 |
| Hiltpold - KM #4 | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,475–4,590 | Jul 25, 2023 |
| Hiltpold - KM #5A | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,605–4,723 | Feb 10, 2023 |
| Trull-Iellc #4 | Ingleside Ethylene, LLC | Active | Other | — | — | — | Jan 25, 2017 |
| Smith, Lewis Edwin et AL #4 | Underground Services Markham,llc | Active | Other | — | — | 3,200–7,300 | Dec 23, 2025 |
| Hiltpold - KM #7A | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,649–5,535 | Feb 10, 2023 |
| Hiltpold - KM #9 | Kinder Morgan Texas Pipeline LLC | Active | Other | — | — | 3,500–6,600 | Jul 25, 2023 |
| Trull #2A | Tres Palacios Gas Storage LLC | Active | Other | — | — | 3,500–5,750 | May 31, 2024 |
| Trull #3A | Tres Palacios Gas Storage LLC | Active | Other | — | — | 3,922–5,619 | May 31, 2024 |
| Trull #1A | Tres Palacios Gas Storage LLC | Active | Other | — | — | 3,356–5,575 | May 31, 2024 |
| Ohio-Sun Unit #1K | Allegiant Res, LLC | Inactive | Disposal | — | 8,000 | 1,676–1,706 | Dec 15, 1980 |
| Texas Brine Corp #1SW | Texas Brine Corp | Cancelled | Disposal | — | 67,000 | 2,100–2,430 | Feb 6, 1988 |
| R. B. Trull et AL #1 | Seadrift Pipeline Corp | Cancelled | Disposal | — | 50,000 | 1,500–3,000 | Oct 12, 1979 |
| H. Smith #1 | Underground Services Markham,llc | Inactive | Other | — | 45,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #10 | Underground Services Markham,llc | Cancelled | Other | — | 45,000 | 3,000–7,350 | Jun 22, 2016 |
| Texas Brine Corporat #4D | Underground Services Markham,llc | Cancelled | Disposal | — | 40,000 | 5,300–7,300 | Aug 8, 2018 |
| Texas Brine Corporat #3D | Underground Services Markham,llc | Cancelled | Disposal | — | 40,000 | 5,300–7,300 | Aug 8, 2018 |
| Texas Brine Corporat #2D | Underground Services Markham,llc | Cancelled | Disposal | — | 40,000 | 5,300–7,300 | Aug 8, 2018 |
| Texas Brine Corporat #1D | Underground Services Markham,llc | Cancelled | Disposal | — | 40,000 | 5,300–7,300 | Aug 8, 2018 |
| Fee #1D | Seadrift Pipeline Corp | Plugged | Disposal | — | 30,000 | 1,590–2,757 | May 2, 1979 |
| H. Smith #2 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #3 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #4 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #5 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #6 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #7 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #8 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #9 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #12 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
| H. Smith #13 | Underground Services Markham,llc | Inactive | Other | — | 30,000 | 3,000–7,350 | May 5, 2026 |
Latest disposal drilling permits
W-1 drilling permits in the county tagged as produced-water disposal.
| Issued | Permit | Operator | Lease / well |
|---|---|---|---|
| Oct 14, 2009 | 685817 | Texakoma Operating, L.P. | Linnville SWD #1 32132292 |
| Oct 14, 2009 | 685817 | Texakoma Operating, L.P. | Linnville SWD #1 32132292 |
| May 29, 2003 | 532255 | Hollimon Oil Corporation | Alvena SWD #1 32102029 |
| Apr 28, 1994 | 423375 | Comstock Oil & Gas, Inc. | Metzger SWD #4DR 32131704 |
| Apr 28, 1994 | 423375 | Comstock Oil & Gas, Inc. | Metzger SWD #4DR 32131704 |
| Sep 2, 1977 | 6782 | Sun Exploration & Production Co. | Braman -C- #5 32100529 |
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/matagorda, documented in the API reference.