WATER · TERRY COUNTY

Produced water and disposal in Terry 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 →

Terry County has 527 active injection and disposal wells, 48 of them permitted for disposal, with 1.5 million barrels a day of permitted capacity.

Operators reported 49 million barrels injected on H-10 filings in the twelve months to June 2025, up 2% on the year before, about 9% of what the permits allow.

1 deep disposal wells here report daily to TexNet; they injected 121 barrels a day in August 2026.

Highmark Energy Operating, LLC is the largest injector in the county, with 18 million barrels reported across 160 active wells.

527
active injection wells, 48 for disposal
1.46M
bbl/d permitted capacity
49.4M
bbl reported, H-10 year to Jun 2025 +2%
9%
of permitted capacity used
1,050
UIC permits on file, all time
121
bbl/d, 1 daily reporters, Aug 2026

Reported injection, by month

H-10 FILINGS · TEN YEARS TO JUN 2025

Last 12 months 49,389,051 · prior 12 48,455,214(+2%)

05M10M2016201720182019202020212022202320242025

UT BEG TexNet injection reporting tool

Deep disposal, reported daily

121
bbl per day, Aug 2026
1
wells reporting
1
operators
—
same wells vs a year earlier
WellOperatorbbl/d
44500201Bridwell Oil Co.121

Who injects here

Operators with active permits in the county, by reported H-10 volume over the settled year.

Injection permits

1,052 UIC PERMITS · 527 ACTIVE · PAGE 5 OF 11

Active permits first, by reported volume, then canceled, plugged, and never-activated permits.

WellOperatorStatusPurposeReported, bblbbl/d permittedZone, ftPermitted
Prentice Northeast Unit #9Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,700–7,400Aug 3, 2007
Prentice Northeast Unit #14 WHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #36WHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #45 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #52AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #54 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #58 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #68Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #82AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5006,200–7,300Sep 5, 1995
Prentice Northeast Unit #84AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #86AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #93AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #97AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #97BHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #124AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #80BHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #86BHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,500–7,300Aug 29, 2011
Prentice Northeast Unit #26BHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,600–7,300Sep 23, 2011
Prentice Northeast Unit #146 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #107BHighmark Energy Operating, LLCActiveDisposal—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #46WHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #145 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #145 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #54 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #5 UHighmark Energy Operating, LLCActiveDisposal—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #16 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #18 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #45 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #58 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #13 UHighmark Energy Operating, LLCActiveDisposal—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #17 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5006,510–7,050May 15, 2007
Prentice Northeast Unit #19 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #25 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #38 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #49 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #57 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #59BHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #76 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #88 UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #90AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #114AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #51AHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #88 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #19 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #266Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #13 LHighmark Energy Operating, LLCActiveDisposal—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #57 LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #94BWHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #114BWHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 5, 1995
Prentice Northeast Unit #255Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Aug 21, 1996
Prentice Northeast Unit #757Highmark Energy Operating, LLCActiveDisposal—2,5005,700–7,300May 9, 1997
Prentice Northeast Unit #606UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–6,200May 12, 1998
Prentice Northeast Unit #632UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Jun 24, 2026
Prentice Northeast Unit #632LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5006,200–7,300May 12, 1998
Prentice Northeast Unit #142UHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–6,175Oct 8, 1998
Prentice Northeast Unit #142LHighmark Energy Operating, LLCActiveEnhanced recovery—2,5006,175–7,300Oct 8, 1998
Prentice Northeast Unit #695Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Sep 26, 2001
Prentice Northeast Unit #271WHighmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Feb 14, 2011
Prentice Northeast Unit #160Highmark Energy Operating, LLCActiveEnhanced recovery—2,5005,750–7,300Oct 3, 2005
Adair Wolfcamp Unit #403Hilcorp Energy CompanyActiveEnhanced recovery—2,0008,450–8,700Feb 5, 1991
SB-A #9104Aviator Energy, LLCActiveEnhanced recovery—2,00010,005–10,189Apr 3, 2007
Adair San Andres Unit #904Hilcorp Energy CompanyActiveEnhanced recovery—2,0004,774–4,917Jun 10, 2009
Adair San Andres Unit #907Hilcorp Energy CompanyActiveEnhanced recovery—2,0004,788–4,917May 6, 2009
Nystel, J. P. "B" #11R3 Operating CorporationActiveEnhanced recovery—2,0004,832–4,868Apr 4, 2019
Mallet Land & Cattle Company #10WCross Timbers Energy, LLCActiveEnhanced recovery—1,5004,600–5,034Sep 22, 2011
Helen #1R3 Operating CorporationActiveEnhanced recovery—1,5007,150–8,150Dec 9, 2014
Gracey, H. C. #5R3 Operating CorporationActiveEnhanced recovery—1,5007,600–8,139Nov 3, 2016
Northwest Terry (Abo) Unit #311R3 Operating CorporationActiveEnhanced recovery—1,5007,500–8,100Nov 29, 2016
Northwest Terry (Abo) Unit #403R3 Operating CorporationActiveEnhanced recovery—1,5007,500–8,105Nov 29, 2016
Coons, W. A. #33WHilcorp Energy CompanyActiveEnhanced recovery—1,0007,600–8,100Jun 26, 1991
Central Glorieta Unit #4WOccidental Permian Ltd.ActiveEnhanced recovery—1,0005,896–5,977—
Mallet Land & Cattle Company #14WCross Timbers Energy, LLCActiveEnhanced recovery—1,0005,000–5,069Apr 21, 1965
Welch North Unit #1602WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—1,0004,650–4,928May 17, 2011
Morgenstern, Pauline H. #2Extex Operating CompanyActiveEnhanced recovery—1,0006,614–6,842Aug 14, 1991
Wellman SW. San Andres Unit #25Rein Pusher Operating LLCActiveEnhanced recovery—1,0005,487–5,509Jun 28, 1994
Central Glorieta Unit #9Occidental Permian Ltd.ActiveEnhanced recovery—1,0005,800–6,050Dec 2, 1988
Mallet Land & Cattle Company #108Cross Timbers Energy, LLCActiveEnhanced recovery—1,0004,206–5,065Dec 19, 1997
Prentice Northeast Unit #163Highmark Energy Operating, LLCActiveDisposal—7502,098–2,138Apr 2, 1990
Warhorse (Clearfork, Up.) Unit #902Extex Operating CompanyActiveEnhanced recovery—6006,624–6,808Oct 19, 1983
Jackson (Clearfork) Unit #20Cross Timbers Energy, LLCActiveEnhanced recovery—5506,655–6,800Dec 8, 2004
Jackson (Clearfork) Unit #28Cross Timbers Energy, LLCActiveEnhanced recovery—5506,500–6,800Dec 8, 2004
Jackson (Clearfork) Unit #5Cross Timbers Energy, LLCActiveEnhanced recovery—5506,500–6,800Dec 8, 2004
Jackson (Clearfork) Unit #8Cross Timbers Energy, LLCActiveEnhanced recovery—5506,521–6,800Dec 8, 2004
Jackson (Clearfork) Unit #17Cross Timbers Energy, LLCActiveEnhanced recovery—5506,550–6,800Dec 8, 2004
Jackson (Clearfork) Unit #22Cross Timbers Energy, LLCActiveEnhanced recovery—5506,550–6,800Dec 8, 2004
Muldrow Unit #21Cross Timbers Energy, LLCActiveEnhanced recovery—5505,250–5,355Jan 31, 2005
Muldrow Unit #14YCross Timbers Energy, LLCActiveEnhanced recovery—5505,200–5,378Dec 20, 2005
Reese Cleveland #8WBce-Mach III LLCActiveEnhanced recovery—5007,722–8,006Jul 24, 1978
Welch North Unit #1607WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,880–4,893Jun 25, 1965
Welch North Unit #1610WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,844–4,888May 9, 2003
Welch North Unit #1802WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,906–4,923Jun 15, 1965
Welch North Unit #1901WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,912–4,954Jun 15, 1965
Welch North Unit #2403WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,872–4,904Jun 15, 1965
Welch North Unit #2807WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,834–4,881—
Welch North Unit #3303WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5004,904–4,945Jun 15, 1965
Wellman West Unit #7White Rock Oil & Gas, LLCActiveEnhanced recovery—5005,490–5,650Aug 17, 1995
Wellman West Unit #12WWhite Rock Oil & Gas, LLCActiveEnhanced recovery—5005,490–5,650Aug 17, 1995
Wellman West Unit #17White Rock Oil & Gas, LLCActiveEnhanced recovery—5005,490–5,650Aug 17, 1995
Welch North Unit #1617White Rock Oil & Gas, LLCActiveEnhanced recovery—5004,861–4,906Jul 23, 2003
Welch North Unit #1705White Rock Oil & Gas, LLCActiveEnhanced recovery—5004,913–4,930Jul 23, 2003

Latest disposal drilling permits

W-1 drilling permits in the county tagged as produced-water disposal.

IssuedPermitOperatorLease / well
Dec 14, 1982180153Superior Oil Company, TheT-Y Unit SWD #1 44580579
Sep 21, 1981133939Superior Oil Company, ThePippin, O.A. SWD #1 44530991

About this data

RRC UIC well master and H-10 injection reports, settled through Jun 2025; TexNet daily injection for Aug 2026; disposal permit tags from Petrora's sector classifier.

Developers: this page as JSON is GET /v1/data/water/tx/terry, documented in the API reference.