Produced water and disposal in Cochran 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 →
Cochran County has 956 active injection and disposal wells, 50 of them permitted for disposal, with 1.2 million barrels a day of permitted capacity.
Operators reported 31 million barrels injected on H-10 filings in the twelve months to June 2025, down 12% on the year before, about 7% of what the permits allow.
Hilcorp Energy Company is the largest injector in the county, with 8.6 million barrels reported across 293 active wells.
- 956
- active injection wells, 50 for disposal
- 1.25M
- bbl/d permitted capacity
- 30.7M
- bbl reported, H-10 year to Jun 2025 -12%
- 7%
- of permitted capacity used
- 2,112
- UIC permits on file, all time
Reported injection, by month
H-10 FILINGS · TEN YEARS TO JUN 2025
Last 12 months 30,695,654 · prior 12 34,841,669(-12%)
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 | 8.59M | 293 | 458K |
| Manzano, LLC | 4.35M | 9 | 52.6K |
| Double Barrel Oil LLC | 2.21M | 53 | 25.9K |
| Extex Operating Company | 2.01M | 119 | 80.6K |
| Aviator Energy, LLC | 1.86M | 55 | 31K |
| Hexp Operating, LLC | 1.8M | 31 | 29.3K |
| Cross Timbers Energy, LLC | 1.41M | 91 | 80.3K |
| Kimbell Operating Company | 1.33M | 25 | 15.1K |
| Occidental Permian EOR, LLC | 1.2M | 43 | 193K |
| A.C.T. Operating Company | 985K | 39 | 23.4K |
| Walkabout Operating, LLC | 789K | 13 | 15.5K |
| G & F Oil, Inc. | 621K | 1 | 2.5K |
| Burk Royalty Co., Ltd. | 569K | 1 | 25K |
| Vision Oil and Gas LLC | 560K | 89 | 59.9K |
| Three Span Oil & Gas, Inc. | 469K | 6 | 6K |
| Prasad, Hari Production Co. | 335K | 10 | 5.4K |
| Winn Operating, LLC | 305K | 14 | 16.8K |
| Momentum Operating Co., Inc. | 300K | 4 | 3.6K |
| Hunt Cimarron Ltd. Partnership | 237K | 16 | 15.5K |
| Delray Oil, Inc. | 215K | 3 | 45K |
Injection permits
2,112 UIC PERMITS · 956 ACTIVE · PAGE 7 OF 22
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 |
|---|---|---|---|---|---|---|---|
| Calvin-Starnes Unit #J 13 | Vision Oil and Gas LLC | Active | Enhanced recovery | 576 | 800 | 5,005–5,035 | Jul 24, 1985 |
| North Central Levelland Unit #98 | Hilcorp Energy Company | Active | Enhanced recovery | 564 | 1,000 | 4,560–5,000 | May 18, 2001 |
| Calvin-Starnes Unit #K 13 | Vision Oil and Gas LLC | Active | Enhanced recovery | 561 | 300 | 4,984–4,998 | Jul 24, 1985 |
| North Central Levelland Unit #20W | Hilcorp Energy Company | Active | Enhanced recovery | 556 | 3,000 | 4,600–4,900 | Nov 22, 2024 |
| North Central Levelland Unit #64W | Hilcorp Energy Company | Active | Enhanced recovery | 556 | 1,000 | 4,630–4,840 | Oct 12, 2000 |
| North Central Levelland Unit #63W | Hilcorp Energy Company | Active | Enhanced recovery | 556 | 650 | 4,560–5,000 | Jan 27, 2000 |
| North Central Levelland Unit #216W | Hilcorp Energy Company | Active | Enhanced recovery | 547 | 1,000 | 4,805–4,838 | Mar 28, 1996 |
| Calvin-Starnes Unit #K 16 | Vision Oil and Gas LLC | Active | Enhanced recovery | 527 | 800 | 5,034–5,076 | Jul 24, 1985 |
| North Central Levelland Unit #188W | Hilcorp Energy Company | Active | Enhanced recovery | 513 | 1,000 | 4,600–4,900 | May 22, 2009 |
| Northwest Mallet Unit #34W | Occidental Permian EOR, LLC | Active | Enhanced recovery | 512 | 5,000 | 4,700–5,200 | Aug 6, 2019 |
| Seaboard-Wright #15A | Hexp Operating, LLC | Active | Enhanced recovery | 487 | 1,000 | 4,700–4,900 | Oct 17, 2013 |
| West Levelland Unit #278W | Hilcorp Energy Company | Active | Enhanced recovery | 412 | 300 | 4,750–5,000 | Dec 16, 1988 |
| Calvin-Starnes Unit #L 13 | Vision Oil and Gas LLC | Active | Enhanced recovery | 348 | 800 | 4,970–5,000 | Jul 24, 1985 |
| Whiteface Unit #19W | Double Barrel Oil LLC | Active | Disposal | 284 | 300 | 4,849–4,889 | Jul 8, 2004 |
| Calvin-Starnes Unit #L 16 | Vision Oil and Gas LLC | Active | Enhanced recovery | 283 | 800 | 4,975–5,072 | Jul 24, 1985 |
| West Levelland Unit #69W | Hilcorp Energy Company | Active | Enhanced recovery | 263 | 300 | 4,650–5,000 | Jul 2, 1991 |
| Northwest Mallet Unit #87 | Occidental Permian EOR, LLC | Active | Enhanced recovery | 181 | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Starnes Ranch "35" #2 | Vision Oil and Gas LLC | Active | Enhanced recovery | 172 | 500 | 5,033–5,066 | Jan 4, 2006 |
| Whiteface Unit #131W | Double Barrel Oil LLC | Active | Enhanced recovery | 128 | 1,000 | 4,650–4,944 | Feb 19, 2016 |
| Northwest Mallet Unit #168 | Occidental Permian EOR, LLC | Active | Enhanced recovery | 9 | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Conoco-Dean Unit #54W | Extex Operating Company | Active | Disposal | 5 | 1,000 | 4,946–5,136 | Dec 4, 1987 |
| Dean, C.S. "A-92" #1W | Hilcorp Energy Company | Active | Enhanced recovery | — | 20,000 | 11,000–11,784 | Sep 18, 2014 |
| Maddox #1 | Delray Oil, Inc. | Active | Disposal | — | 15,000 | 5,500–11,750 | Jul 13, 2017 |
| CR Starnes #1D | Delray Oil, Inc. | Active | Disposal | — | 15,000 | 11,750–12,400 | Sep 28, 2017 |
| Northwest Mallet Unit #180 | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,200 | 4,700–5,200 | Jun 22, 2017 |
| Igoe-Smith Oper. Area #21W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,150 | 4,700–5,400 | Sep 5, 2017 |
| Igoe-Smith Oper. Area #32W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,000 | 4,700–5,200 | Aug 30, 2004 |
| Northwest Mallet Unit #93W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Northwest Mallet Unit #102W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Northwest Mallet Unit #104W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Dean, Carrie Slaughter "C" #22 | Hilcorp Energy Company | Active | Enhanced recovery | — | 5,000 | 4,800–5,200 | Jun 23, 2005 |
| Northwest Mallet Unit #112 | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 5,000 | 4,700–5,200 | Apr 24, 2007 |
| Dean, Carrie Slaughter "C" #21 | Hilcorp Energy Company | Active | Enhanced recovery | — | 4,000 | 4,800–5,200 | Jun 23, 2005 |
| League 91 Project #119W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 3,200 | 4,994–5,037 | Aug 26, 1991 |
| North Central Levelland Unit #135 | Hilcorp Energy Company | Active | Enhanced recovery | — | 3,000 | 4,700–4,900 | Sep 6, 2013 |
| West Levelland Unit #37W | Hilcorp Energy Company | Active | Enhanced recovery | — | 3,000 | 4,600–4,903 | Nov 14, 2024 |
| North Central Levelland Unit #129W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,500 | 4,500–4,900 | Jul 18, 2023 |
| North Central Levelland Unit #132W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,500 | 4,500–4,900 | Jul 18, 2023 |
| West Levelland Unit #62W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,500 | 4,600–4,910 | Apr 16, 2024 |
| Veal #13W | Extex Operating Company | Active | Enhanced recovery | — | 2,500 | 4,892–5,000 | Aug 28, 2012 |
| Duggan Slaughter Unit #21AW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 2,500 | 5,021–5,060 | Jun 22, 2006 |
| Mallet Unit #1524W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,500 | 4,400–5,170 | Oct 17, 2012 |
| West Levelland Unit #38W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,240 | 4,500–5,000 | Jan 6, 2014 |
| Buckshot Unit #96W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 2,000 | 4,983–5,093 | Apr 13, 1967 |
| Mallet Unit #103W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,000 | 4,400–5,329 | Dec 31, 1999 |
| Mallet Unit #128W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,000 | 4,400–5,357 | Dec 31, 1999 |
| Mallet Unit #164W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,000 | 4,400–5,391 | Dec 31, 1999 |
| Mallet Unit #139 | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,000 | 4,400–5,365 | Dec 31, 1999 |
| Whiteface Unit #104W | Double Barrel Oil LLC | Active | Enhanced recovery | — | 2,000 | 4,622–4,940 | Oct 29, 2015 |
| Mallet Unit #1151W | Hilcorp Energy Company | Active | Enhanced recovery | — | 2,000 | 4,400–5,327 | Dec 31, 1999 |
| Southwest Levelland Unit #102W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,500 | 4,200–5,200 | Apr 10, 2024 |
| Igoe-Smith Oper. Area #2W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 1,500 | 4,988–5,054 | Mar 24, 1986 |
| Igoe-Smith Oper. Area #10W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 1,500 | 4,985–5,048 | Mar 2, 2022 |
| Igoe-Smith Oper. Area #58W | Occidental Permian EOR, LLC | Active | Enhanced recovery | — | 1,500 | 4,964–5,078 | Mar 24, 1986 |
| Magnum Levelland Unit #205 | Extex Operating Company | Active | Disposal | — | 1,500 | 4,750–5,050 | Feb 23, 1998 |
| Woodley, F. L. #89W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,500 | 4,850–5,500 | May 17, 2013 |
| Woodley, F. L. #88W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,500 | 4,850–5,500 | May 17, 2013 |
| Woodley, F. L. #98W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,500 | 4,850–5,500 | Jul 24, 2013 |
| South Mallet Unit #301W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #307W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,500–5,200 | Nov 18, 2021 |
| South Mallet Unit #309W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #312W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #316W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #317 | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #319 | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| South Mallet Unit #318W | Winn Operating, LLC | Active | Enhanced recovery | — | 1,200 | 4,800–5,600 | Nov 15, 2010 |
| Whiteface Unit #66W | Double Barrel Oil LLC | Active | Enhanced recovery | — | 1,060 | 4,635–4,942 | Aug 11, 2016 |
| Dean, C. S. "A" #82W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,035 | 4,650–5,140 | Mar 31, 2022 |
| Buckshot Unit #92W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 1,000 | 4,946–5,069 | Apr 13, 1967 |
| Buckshot Unit #134W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 1,000 | 4,987–5,102 | Apr 13, 1967 |
| Buckshot Unit #136W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 1,000 | 4,986–5,102 | Apr 13, 1967 |
| Buckshot Unit #51W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 1,000 | 4,937–5,059 | Apr 13, 1967 |
| Frost #128W | Hunt Cimarron Ltd. Partnership | Active | Enhanced recovery | — | 1,000 | 4,928–5,060 | Apr 13, 1967 |
| West Levelland Unit #6W | Hilcorp Energy Company | Active | Enhanced recovery | — | 1,000 | 4,650–4,900 | Apr 21, 2022 |
| Wright Unit #2063W | Extex Operating Company | Active | Enhanced recovery | — | 1,000 | 4,935–4,967 | Jun 30, 2014 |
| Dean Unit "B" #4W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 1,000 | 4,983–5,045 | Jan 14, 1965 |
| Dean Unit "B" #6W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 1,000 | 4,985–5,040 | Jan 14, 1965 |
| Dean Unit "B" #29W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 1,000 | 5,060–5,070 | Jan 14, 1965 |
| Dean Unit "B" #40W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 1,000 | 5,053–5,100 | Sep 29, 2025 |
| Dean Unit #28W | Vision Oil and Gas LLC | Active | Enhanced recovery | — | 1,000 | 4,894–5,103 | Dec 20, 2005 |
| Conoco-Dean Unit #61W | Extex Operating Company | Active | Disposal | — | 1,000 | 4,962–5,027 | Dec 4, 1987 |
| Conoco-Dean Unit #74W | Extex Operating Company | Active | Disposal | — | 1,000 | 4,998–5,028 | Dec 4, 1987 |
| Conoco-Dean Unit #108W | Extex Operating Company | Active | Enhanced recovery | — | 1,000 | 4,980–5,077 | Apr 24, 1996 |
| Duggan Slaughter Unit #27AW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,068–5,090 | Apr 28, 1995 |
| Duggan Slaughter Unit #27BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,078–5,084 | Apr 24, 1963 |
| Duggan Slaughter Unit #31CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 4,732–5,080 | Jul 20, 2023 |
| Duggan Slaughter Unit #55W | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,005–5,060 | Jul 16, 1996 |
| Duggan Slaughter Unit #57BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,063–5,098 | Jul 16, 1996 |
| Duggan Slaughter Unit #67BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,070–5,078 | Jul 16, 1996 |
| Duggan Slaughter Unit #71BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,021–5,099 | Jul 16, 1996 |
| Duggan Slaughter Unit #71CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,037–5,080 | May 31, 1995 |
| Duggan Slaughter Unit #87BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,050–5,113 | Aug 21, 1967 |
| Duggan Slaughter Unit #91CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,056–5,080 | Jul 16, 1996 |
| Duggan Slaughter Unit #101BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,052–5,079 | Jul 16, 1996 |
| Duggan Slaughter Unit #101CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,045–5,113 | May 31, 1995 |
| Duggan Slaughter Unit #121BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,007–5,090 | Aug 21, 1967 |
| Duggan Slaughter Unit #121CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,032–5,080 | Aug 21, 1967 |
| Duggan Slaughter Unit #141BW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,038–5,086 | Jul 16, 1996 |
| Duggan Slaughter Unit #151CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 4,800–5,079 | May 31, 1995 |
| Duggan Slaughter Unit #191CW | Cross Timbers Energy, LLC | Active | Enhanced recovery | — | 1,000 | 5,046–5,074 | Jul 16, 1996 |
Latest disposal drilling permits
W-1 drilling permits in the county tagged as produced-water disposal.
| Issued | Permit | Operator | Lease / well |
|---|---|---|---|
| Apr 18, 2022 | 879049 | Silver Creek Permian OP Co, LLC | Sherman SWD #1 07933409 |
| Apr 18, 2022 | 879049 | Manzano, LLC | Sherman SWD #1 07933409 |
| Jun 3, 2021 | 870193 | Silver Creek Permian OP Co, LLC | Virgil SWD #1 07933308 |
| Jul 23, 2019 | 855374 | Silver Creek Permian OP Co, LLC | Sherman SWD #1 07933409 |
| Mar 19, 2019 | 851096 | Silver Creek Permian OP Co, LLC | George Custer SWD #1 07931253 |
| Jan 16, 2019 | 848533 | Silver Creek Permian OP Co, LLC | M H Davis SWD #1 07900809 |
| May 14, 2018 | 839876 | Silver Creek Oil & Gas, LLC | George Custer SWD #1 07931253 |
| Apr 12, 2018 | 838673 | Silver Creek Oil & Gas, LLC | Black Bart SWD #3 07933385 |
| Mar 26, 2018 | 837877 | Mammoth Exploration LLC | Hudson SWD #3 07933381 |
| Mar 6, 2018 | 837092 | Silver Creek Oil & Gas, LLC | Black Bart SWD #1 07933380 |
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/cochran, documented in the API reference.