Petrora

WATER · NOLAN COUNTY

Produced water and disposal in Nolan 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 →

Nolan County has 193 active injection and disposal wells, 67 of them permitted for disposal, with 548,189 barrels a day of permitted capacity.

Operators reported 13 million barrels injected on H-10 filings in the twelve months to September 2025, up 1% on the year before, about 6% of what the permits allow.

Grayrock Energy II, LLC is the largest injector in the county, with 4.0 million barrels reported across 71 active wells.

193
active injection wells, 67 for disposal
548K
bbl/d permitted capacity
12.6M
bbl reported, H-10 year to Sep 2025 +1%
6%
of permitted capacity used
851
UIC permits on file, all time

Reported injection, by month

H-10 FILINGS · TEN YEARS TO SEP 2025

Last 12 months 12,583,804 · prior 12 12,505,979(+1%)

01M2M2016201720182019202020212022202320242025

Who injects here

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

OperatorReported, bblActive wellsCapacity bbl/d
Grayrock Energy II, LLC4M7185.8K
Scout Energy Management LLC3.87M1771.8K
R2Q Operating LLC1.12M1059.5K
D.K.D.866K563.5K
Clear Fork, Incorporated714K724K
Citation Oil & Gas Corp.433K2961.2K
Daylight Petroleum LLC333K25.5K
Patton, E. N. Oil Company, Inc.322K15K
Double M Petroproperties, Inc.260K28K
Sojourner Drilling Corporation197K317K
Lone Star Operations LLC111K36K
Gungoll, Carl E. Exploration LLC71.3K226.4K
Goodrock Natural Resources, LLC53.9K739.7K
Chisholm Operating, Inc.50.4K11K
Golden Oil and Ranch, LLC47.6K1500
Williams Oil Company28.5K11K
DJ & T Services, LLC24.9K12K
Shaida, John H.16.7K1250
VX Operating, LLC15.2K1500
Nec Operating, LLC14.6K1300

Injection permits

851 UIC PERMITS · 193 ACTIVE · PAGE 3 OF 9

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

WellOperatorStatusPurposeReported, bblbbl/d permittedZone, ftPermitted
Thornberg #1BJB Transport LLCInactiveDisposal—5,0007,051–7,057May 20, 2014
Group 4000 Unit #8AWinchester Energy, LLCCanceledEnhanced recovery—3,0003,500–4,054Aug 6, 2004
Beall B #9R2Q Operating LLCInactiveEnhanced recovery—2,0005,260–5,862Nov 19, 2021
South Lake Trammel Unit #8Grayrock Energy II, LLCCanceledEnhanced recovery—1,5005,000–5,400Oct 4, 2011
South Lake Trammel Unit #27Grayrock Energy II, LLCCanceledEnhanced recovery—1,5005,000–5,400Oct 4, 2011
Lake Trammel Unit #34Grayrock Energy II, LLCCanceledEnhanced recovery—1,5004,900–5,600Sep 12, 2013
Lake Trammel Unit #85Grayrock Energy II, LLCCanceledEnhanced recovery—1,5004,980–5,213Jan 24, 2011
Joe Young #3Scout Energy Management LLCCanceledEnhanced recovery—5005,651–5,661Feb 19, 2009
Joe Young #9Scout Energy Management LLCCanceledEnhanced recovery—5005,614–5,622Feb 19, 2009
Boyd, C. E. #1159Clear Fork, IncorporatedInactiveEnhanced recovery—5004,873–4,931Jun 29, 2010
Sims #2Scout Energy Management LLCCanceledEnhanced recovery—5005,600–5,700Aug 26, 2010
Cox SWD #2Cox Investments, LLCCanceledDisposal—25,0005,700–6,000Feb 5, 2014
Moore '30' #2 AVanco Oil & Gas Corp.CanceledDisposal—25,0004,720–6,564Apr 9, 2014
Cox SWD #2Cox Investments, LLCCanceledDisposal—25,0006,530–7,700Sep 9, 2014
Herbert Williams #1Agua Libre Midstream LLCPluggedDisposal—25,0005,674–7,100Nov 16, 2015
Hood WD #1WDClear Fork, IncorporatedPluggedDisposal—24,0004,200–6,115Dec 10, 2020
Schroeder #1Chisholm Operating, Inc.CanceledDisposal—20,0004,430–6,610Dec 17, 2012
West Sweetwater SWD #1Probity SWD, LLCCanceledDisposal—20,0002,700–4,600Oct 29, 2013
Southwest Nena Lucia Unit #1206Oryx Energy CompanyCanceledEnhanced recovery—18,0006,897–7,004Nov 8, 1961
Southwest Nena Lucia Unit #2302WOryx Energy CompanyCanceledEnhanced recovery—18,0006,959–7,044Nov 8, 1961
Southwest Nena Lucia Unit #3104WOryx Energy CompanyCanceledEnhanced recovery—18,0006,920–7,044Nov 8, 1961
Southwest Nena Lucia Unit #3105WOryx Energy CompanyCanceledEnhanced recovery—18,0006,878–6,964Nov 8, 1961
Southwest Nena Lucia Unit #3505WOryx Energy CompanyCanceledEnhanced recovery—18,0006,867–6,921Nov 8, 1961
North Nena Lucia Unit #6Wagner, Duer & Co.CanceledEnhanced recovery—15,0006,896–6,994May 17, 1966
North Nena Lucia Unit #11Oryx Energy CompanyCanceledEnhanced recovery—15,0006,938–7,020Sep 13, 1961
North Nena Lucia Unit #29Sheridan Production Company, LLCPluggedEnhanced recovery—15,0006,918–6,942Sep 13, 1961
North Nena Lucia Unit #36Oryx Energy CompanyCanceledEnhanced recovery—15,0006,840–6,963Sep 13, 1961
North Nena Lucia Unit #45Wagner, Duer & Co.CanceledEnhanced recovery—15,0006,719–6,790Sep 13, 1961
North Nena Lucia Unit #46Wagner, Duer & Co.CanceledEnhanced recovery—15,0006,681–6,799Nov 22, 1961
North Nena Lucia Unit #54Oryx Energy CompanyCanceledEnhanced recovery—15,0006,852–6,965Sep 13, 1961
North Nena Lucia Unit #59Aethon I LPCanceledEnhanced recovery—15,0006,853–6,907Sep 13, 1961
North Nena Lucia Unit #67Patterson Petroleum, Inc.CanceledEnhanced recovery—15,0006,804–6,960May 23, 1974
North Nena Lucia Unit #75Oryx Energy CompanyCanceledEnhanced recovery—15,0006,799–7,022Sep 13, 1961
North Nena Lucia Unit #81Oryx Energy CompanyCanceledEnhanced recovery—15,0006,693–6,708Sep 13, 1961
North Nena Lucia Unit #83Oryx Energy CompanyCanceledEnhanced recovery—15,0006,826–6,846Sep 13, 1961
North Nena Lucia Unit #89Oryx Energy CompanyCanceledEnhanced recovery—15,0006,793–6,939Sep 13, 1961
North Nena Lucia Unit #97Oryx Energy CompanyCanceledEnhanced recovery—15,0006,737–6,816Sep 13, 1961
North Nena Lucia Unit #101Oryx Energy CompanyCanceledEnhanced recovery—15,0006,752–6,796Sep 13, 1961
North Nena Lucia Unit #103Kerr-McGee Oil & Gas Onshore LLCCanceledEnhanced recovery—15,0006,908–6,938Sep 13, 1961
Lance Sears #2SDTCS Petroleum Co., LLCCanceledDisposal—12,0003,260–3,568Feb 17, 2015
Withers, Gertrude #2L.C.S. Production CompanyPluggedDisposal—10,0005,154–6,641Jan 11, 2013
Davis #5Clear Fork, IncorporatedPluggedDisposal—10,0004,100–5,890Mar 22, 2013
Oxo #1WDMid-Con Energy Operating, LLCPluggedDisposal—10,0006,500–6,800Dec 5, 2011
Dinger #1WDL.C.S. Production CompanyCanceledDisposal—10,0006,240–6,350Mar 7, 2012
Dinger #2WDL.C.S. Production CompanyCanceledDisposal—10,0006,400–7,500Mar 7, 2012
McElmurray, W. W. -A- #1Scout Energy Management LLCInactiveDisposal—10,0003,100–3,400Dec 1, 2016
McAdams Lambert Unit #1Scout Energy Management LLCInactiveDisposal—10,0006,590–6,690Mar 4, 2022
Whitaker, E. G. #18Scout Energy Management LLCInactiveDisposal—7,5003,100–3,500Mar 16, 2016
TXL #6Union Pacific Resources CompanyPluggedDisposal—7,0005,907–5,976Jul 6, 1977
Whitaker, E. G. #9Scout Energy Management LLCInactiveDisposal—7,0003,100–3,500Apr 8, 2016
TXL #5O'Ryan Oil and GasInactiveDisposal—6,0002,500–5,930Oct 13, 2014
Lake Tramel "96" #120Merit Energy CompanyCanceledDisposal—6,0004,524–4,555Jul 19, 2012
North Nena Lucia Unit #94FDL Operating, LLCPluggedDisposal—5,0003,480–3,630Mar 10, 1983
Sears-Streater #1Richman Petroleum Corp.CanceledDisposal—5,0003,250–3,600May 31, 1989
Sears-Streater "A" #4Texzona Oil & Gas, Inc.CanceledDisposal—5,0003,260–3,568Jun 4, 1990
Petty, R. R. #10Atlas Operating LLCPluggedDisposal—5,0003,760–3,770Jun 14, 2005
Lfy #2WDL.C.S. Production CompanyCanceledDisposal—5,0007,150–7,500Feb 29, 2012
Bobo #1WDL.C.S. Production CompanyCanceledDisposal—5,0006,338–6,450Mar 27, 2012
Bobo #2WDL.C.S. Production CompanyCanceledDisposal—5,0006,380–6,400Mar 27, 2012
Wight #1WDL.C.S. Production CompanyCanceledDisposal—5,0004,000–7,300May 8, 2012
Wight #3WDL.C.S. Production CompanyCanceledDisposal—5,0004,300–7,400May 10, 2012
Wight #2WDL.C.S. Production CompanyCanceledDisposal—5,0004,300–7,300May 16, 2012
Fitzgerald #1WDL.C.S. Production CompanyCanceledDisposal—5,0005,700–6,600May 31, 2012
Fitzgerald #2WDL.C.S. Production CompanyCanceledDisposal—5,0005,500–6,600May 31, 2012
Brooks #1051WDL.C.S. Production CompanyCanceledDisposal—5,0007,300–7,500Jul 5, 2012
Brooks #1041WDL.C.S. Production CompanyCanceledDisposal—5,0007,300–7,500Jul 5, 2012
Brooks #1031WDL.C.S. Production CompanyCanceledDisposal—5,0004,450–4,600Jul 5, 2012
Brooks #721WDL.C.S. Production CompanyCanceledDisposal—5,0007,300–7,500Jul 16, 2012
Brooks #611WDL.C.S. Production CompanyCanceledDisposal—5,0006,450–6,800Jul 10, 2012
Brooks #511WDL.C.S. Production CompanyCanceledDisposal—5,0006,450–6,800Aug 21, 2012
Withers, Gertrude #7WDMid-Con Energy Operating, LLCCanceledDisposal—5,0006,610–6,950Aug 23, 2012
Brooks #11WDL.C.S. Production CompanyCanceledDisposal—5,0006,350–6,550Aug 29, 2012
Brooks #551WDL.C.S. Production CompanyCanceledDisposal—5,0006,300–6,500Sep 5, 2012
Brooks #581WDL.C.S. Production CompanyCanceledDisposal—5,0006,100–6,300Sep 6, 2012
Brooks #541WDL.C.S. Production CompanyCanceledDisposal—5,0007,200–7,400Sep 24, 2012
Brooks #631WDL.C.S. Production CompanyCanceledDisposal—5,0007,000–7,100Jan 3, 2013
Brooks #601WDL.C.S. Production CompanyCanceledDisposal—5,0007,000–7,100Jan 3, 2013
Brooks #58XL.C.S. Production CompanyCanceledDisposal—5,0007,000–7,100Feb 4, 2013
Headrick #1WDL.C.S. Production CompanyCanceledDisposal—5,0003,900–6,410Mar 12, 2013
Rojean #27WIScout Energy Management LLCPluggedEnhanced recovery—5,0002,928–3,360Mar 14, 2014
Sears-Wells "B" #2Patton, E. N. Oil Company, Inc.InactiveDisposal—5,0003,455–3,700Oct 3, 2013
Rojean #1L.C.S. Production CompanyCanceledDisposal—5,0003,030–3,360Jan 13, 2014
Freeman G M #22WIL.C.S. Production CompanyCanceledEnhanced recovery—5,0005,000–5,200Jul 8, 2014
Freeman G M #23WIL.C.S. Production CompanyCanceledEnhanced recovery—5,0005,000–5,200Jul 8, 2014
Freeman G M #23WIL.C.S. Production CompanyCanceledEnhanced recovery—5,0005,000–5,200Jul 8, 2014
BMC #2Whiting Oil and Gas CorporationCanceledDisposal—4,0003,488–3,806Feb 25, 2002
Brooks #2DClear Fork, IncorporatedCanceledDisposal—4,0005,630–5,706Jul 1, 2011
Byrd, J.W. #1Williams Oil CompanyPluggedDisposal—4,0004,165–6,153Jan 16, 2013
Jaynes George Unit #1R2Q Operating LLCInactiveEnhanced recovery—4,0005,564–5,579Jan 29, 2020
Tex-McReynolds #1Sojourner Drilling CorporationCanceledEnhanced recovery—4,0004,771–4,786Aug 10, 2022
Withers, Gertrude #7Bristol Resources CorporationCanceledDisposal—3,5006,438–6,800Jun 1, 1984
Sears-Streater "B" #3Patton, E. N. Oil Company, Inc.PluggedDisposal—3,5003,250–3,576Oct 5, 1988
Sears-Streater "F" #1Patton, E. N. Oil Company, Inc.PluggedDisposal—3,5003,250–3,570May 11, 2001
Sears, Lance "A" #1 DKey Energy Services, Inc. PBDCanceledDisposal—3,0003,400–3,800Jan 28, 1994
Bradford "A" #3Daylight Petroleum LLCPluggedEnhanced recovery—3,0006,484–6,502Feb 22, 2001
Bridgford A #1Stonebriar Oil LLCPluggedDisposal—3,0006,035–6,306Oct 30, 1998
McElmurray 'CD' #2CScout Energy Management LLCInactiveDisposal—3,0003,000–3,500Dec 4, 2013
Young, Fox, Coleman #741HVFletcher Petroleum Corp.CanceledDisposal—3,0002,000–5,235Mar 30, 2017
Beall B #12R2Q Operating LLCInactiveEnhanced recovery—3,0005,638–5,730Jul 15, 2021
Hanks, Billie -A- #9Pioneer Exploration CompanyCanceledEnhanced recovery—2,5004,568–4,580May 21, 1973

Latest disposal drilling permits

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

IssuedPermitOperatorLease / well
Apr 18, 2023889364D.K.D.Roscoe SWD #1 35333746
Dec 15, 2015812533Cinnabar Operating, LLCBrooks Ranch SWD #1D 35332304
Jul 28, 2015808692Santa Rita Holdings, LLCCox SWD #1 35333575
Jun 1, 1981119677A & a Transports, Inc.Sears, Lance "A" #1 D 35330140
Oct 17, 197960929Price, W. H.Whiteside #2D 35330739

About this data

RRC UIC well master and H-10 injection reports, settled through Sep 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/nolan, documented in the API reference.