Petrora

WATER · CALLAHAN COUNTY

Produced water and disposal in Callahan 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 →

Callahan County has 116 active injection and disposal wells, 5 of them permitted for disposal, with 41,629 barrels a day of permitted capacity.

Operators reported 1.7 million barrels injected on H-10 filings in the twelve months to June 2025, up 4% on the year before, about 11% of what the permits allow.

Grayrock Energy II, LLC is the largest injector in the county, with 423,778 barrels reported across 3 active wells.

116
active injection wells, 5 for disposal
41.6K
bbl/d permitted capacity
1.68M
bbl reported, H-10 year to Jun 2025 +4%
11%
of permitted capacity used
1,244
UIC permits on file, all time

Reported injection, by month

H-10 FILINGS · TEN YEARS TO JUN 2025

Last 12 months 1,680,440 · prior 12 1,611,416(+4%)

0100K200K300K2016201720182019202020212022202320242025

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, LLC424K32.5K
Adenryen, Ltd. Co253K42.05K
Nosivad Oil, Inc185K21.1K
Braka Oper, L.L.C146K12K
3 S Prod, Inc89.8K31.19K
Golden Horse Group Corp.74K21.7K
BJB Transport LLC65.8K12K
Weaver Global Operating, LLC63.4K21.8K
Wylie Bros. Prod. & Drgl. Co,inc57.7K7400
D.J. & T. Engy50.9K21.25K
TCS Petro Co., LLC39.7K10
Quail Well Service, Inc35.6K1500
500X Oper LLC33.8K1100
Petex27.5K1400
Midsco23.9K225.8K
Tom-Tom Oper, LLC23.6K23K
Wilson Well Service Inc14.9K6930
Tracker Mineral13.8K21.6K
Whitehall Oper Inc11.5K1250
Merkaz Drilling, LLC8.18K92.22K

Injection permits

1,244 UIC PERMITS · 116 ACTIVE · PAGE 2 OF 13

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

WellOperatorStatusPurposeReported, bblbbl/d permittedZone, ftPermitted
Ramsey, Cal -B- #4M2 Squared Operating, LLCActiveEnhanced recovery—150374–405Mar 31, 2017
Alvey Estate #11Cyber Enviro-Tech IncActiveEnhanced recovery—150386–394May 9, 1990
Mask #9Sandstone Services, LLCActiveEnhanced recovery—100507–529May 31, 1995
Gifford #1Sojourner Drlg. CorpActiveEnhanced recovery—801,668–1,671Mar 19, 1991
Lytle Gap (Cook Sand) Unit #8WMomentum Oper Co., IncActiveOther—601,913–1,917—
Pecan Bayou /Cook Sand/ Unit #6Momentum Oper Co., IncActiveOther——1,858–1,860Jan 1, 1972
McFarlane, J.W. #4 DCwo Engy, LLCActiveEnhanced recovery—1,5001,342–1,415Dec 1, 2016
Boren #7Weaver Global Operating, LLCActiveEnhanced recovery—8001,720–1,748Jun 28, 2018
Green-Williams (Moran) Unit #307GGP Expl, LtdActiveEnhanced recovery—7502,096–2,106Jul 21, 1999
Harris #2Cwo Engy, LLCActiveEnhanced recovery—6001,878–1,898Jul 15, 2005
Green-Williams (Moran) Unit #305GGP Expl, LtdActiveEnhanced recovery—5002,090–2,108Apr 25, 1990
Lytle Gap (Cook Sand) Unit #12RMomentum Oper Co., IncActiveEnhanced recovery—5001,891–1,909Jan 4, 2024
Ramsey, Cal #6M2 Squared Operating, LLCActiveEnhanced recovery—300371–374Nov 16, 2022
Battle, E.R. #10MidscoActiveEnhanced recovery—1501,632–1,635Jun 5, 1981
McDaniel, Wade #W 10MidscoActiveOther—150350–378—
Burnam, M.G. #41836 Energy LLCActiveEnhanced recovery—30297–315Aug 3, 1981
Isenhower, John D. #9Clausen, A. GCancelledEnhanced recovery296150436–442Jan 9, 2001
Davis, S. M. #94Merkaz Drilling, LLCInactiveEnhanced recovery—298387–462Oct 14, 2014
Davis, S. M. #5Merkaz Drilling, LLCInactiveEnhanced recovery—220400–470Dec 31, 2014
Neuman 2041-A #2Momentum Oper Co., IncPluggedEnhanced recovery—2002,062–2,069Mar 18, 1994
Jacobs "B" #3BBlue Oil, IncPluggedEnhanced recovery—7,0003,475–3,673Sep 21, 2011
Snyder Ranch #1Quest Emg, IncCancelledEnhanced recovery—3,5001,600–1,675May 18, 2009
Hutchison "13" #1Enre CorpCancelledDisposal—3,0003,555–3,850Dec 9, 1983
Atwell "A" #8Lorac, IncCancelledEnhanced recovery—2,5001,728–1,736Nov 13, 1991
Dickey, Sybil #1 FEclipse Oil & Gas, IncCancelledEnhanced recovery—2,0004,260–4,386Dec 27, 1991
Dickey, Sybil #1DFEclipse Oil & Gas, IncCancelledEnhanced recovery—2,0004,220–4,350Dec 27, 1991
Dickey, Sybil #2DFEclipse Oil & Gas, IncCancelledEnhanced recovery—2,0004,234–4,350Dec 27, 1991
Main Hatchett Ranch #6Quest Emg, IncCancelledDisposal—1,5003,400–3,430Dec 30, 1988
Hilcher #1MJM Oil & Gas, IncCancelledEnhanced recovery—1,5004,496–4,526Feb 28, 1991
Anderson #2WSChisholm Oper, IncCancelledDisposal—1,5002,520–2,550Mar 8, 2007
Snyder-Seales #21Ryholland Fielder, IncPluggedEnhanced recovery—1,5001,422–1,430Mar 21, 2013
Wilson, Betty #1Damson Oil CorpCancelledDisposal—1,2003,664–3,710Nov 23, 1982
Wilson, Betty #3Toro Prod Co, IncCancelledDisposal—1,2003,637–3,652Jan 10, 1985
Finley "F" #2Dago Casing Pullers, Inc.CancelledDisposal—1,0004,128–4,141Jun 10, 1985
Hooks Ranch Unit #2Tracker MineralCancelledEnhanced recovery—1,0003,177–3,185Oct 7, 1991
Hooks Ranch Unit -A- #8Merit Engy CoPluggedEnhanced recovery—1,0003,100–3,234Jun 12, 1990
Hooks Ranch Unit -A- #7Merit Engy CoPluggedEnhanced recovery—1,0003,158–3,190Jun 12, 1990
Grogan #1Wittie, Edd Enterprises, IncCancelledDisposal—1,000669–672Jul 23, 1982
Parrott, Mary K. #2Smith Pipe of AbileneCancelledDisposal—1,0004,269–4,300Nov 8, 1984
McCarty & McCarty #2Westwood Engy, IncCancelledDisposal—1,0002,000–2,040Aug 19, 1988
Fry, Henry #1Bengal Gas Transmission Co.CancelledDisposal—1,0003,098–3,146Apr 19, 1991
Johnson, S. #2Smith, Joe T. IncCancelledDisposal—1,0002,672–2,720Feb 6, 1989
Windham, Marian "B" #5Tracker MineralPluggedEnhanced recovery—1,0002,528–2,532Apr 19, 1996
Jackson #5Momentum Oper Co., IncCancelledOther—1,000750–763Jan 24, 1963
Jackson #10Momentum Oper Co., IncCancelledOther—1,000722–800Jan 24, 1963
Jackson #11Momentum Oper Co., IncCancelledOther—1,000766–780Jan 24, 1963
McCown #2Brahman Oil, IncCancelledEnhanced recovery—1,0002,849–2,856Sep 14, 1989
Baum #1TK OperCancelledEnhanced recovery—1,0001,596–1,600Feb 19, 1997
Cochran #3S.B. Street Oper, IncPluggedEnhanced recovery—1,0001,200–1,405Oct 26, 2000
Hooks Ranch Unit #40Grayrock Energy II, LLCInactiveEnhanced recovery—1,0003,224–3,240Oct 6, 2006
Hooks Ranch Unit #46Merit Engy CoPluggedEnhanced recovery—1,0003,130–3,154Oct 6, 2006
Hooks Ranch Unit #16Merit Engy CoPluggedEnhanced recovery—1,0003,170–3,190Oct 6, 2006
Hooks Ranch Unit #39Grayrock Energy II, LLCInactiveEnhanced recovery—1,0003,232–3,237Oct 6, 2006
Brady "C" #1D. A. B. Oil Service, IncCancelledEnhanced recovery—1,0003,244–3,284Nov 21, 2011
Windham, Marian "B" #4Tracker MineralPluggedEnhanced recovery—1,0002,516–2,550Oct 19, 2015
3-J's #1Blue Oil, IncCancelledEnhanced recovery—1,0004,087–4,105Feb 25, 2019
Seale-Click #1 ESmith Pipe of AbileneCancelledDisposal—8503,550–4,000Nov 6, 1986
Jones Ranch #21Principal Oil CorpCancelledEnhanced recovery—8203,830–3,880Aug 14, 1991
Three Aces /Flippen/ #402Okreek Oil CoCancelledEnhanced recovery—8001,658–1,677Dec 12, 1988
Barnard #3 UNosivad Oil, IncCancelledEnhanced recovery—8001,682Oct 31, 1986
Davenport, J. B. #8Bridwell Oil CoCancelledEnhanced recovery—8003,270–3,280Apr 30, 1987
Three Aces /Flippen/ #505Okreek Oil CoCancelledEnhanced recovery—8001,648–1,656Dec 12, 1988
Boren "B" #3King Engy ResPluggedEnhanced recovery—8001,731–1,734Mar 2, 1993
Windham, James T. #1Encon Services, IncCancelledEnhanced recovery—8003,870–3,944Apr 16, 1998
Windham, James T. #3 AContour Oil & Gas, LLCPluggedEnhanced recovery—8003,900–3,960Apr 16, 1998
Rutland #7Encon Services, IncCancelledEnhanced recovery—8003,900–3,946Jun 18, 1998
Rutland #1Encon Services, IncCancelledEnhanced recovery—8003,898–3,932Feb 28, 2000
Rutland #5Encon Services, IncCancelledEnhanced recovery—8003,900–3,930Jun 6, 2001
Brady, J. W. #2Paragon CorpCancelledOther—7503,274–3,321Jan 10, 1973
Mitchell, N. H. #4Paragon CorpCancelledOther—7503,272–3,280Jan 10, 1973
Wallace #8605Oxoil, Inc.CancelledEnhanced recovery—7503,816–3,950Sep 23, 1988
Williams, L. L. #2Sequoia Fossil Fuels, IncPluggedEnhanced recovery—7503,839–3,864Jun 22, 1994
Herr-King Field Unit #191Van Oper, LtdPluggedEnhanced recovery—7502,464–2,470Mar 8, 1996
Herr-King Field Unit #420Van Oper, LtdCancelledEnhanced recovery—7502,492–2,514Jun 30, 1997
Herr-King Field Unit #423Van Oper, LtdCancelledEnhanced recovery—7502,578–2,609Jun 30, 1997
Herr-King Field Unit #424Van Oper, LtdPluggedEnhanced recovery—7502,529–2,542Jun 30, 1997
Herr-King Field Unit #426Van Oper, LtdPluggedEnhanced recovery—7502,591–2,697Jun 30, 1997
Herr-King Field Unit #430Van Oper, LtdCancelledEnhanced recovery—7502,583–2,696Jun 30, 1997
Herr-King Field Unit #432Van Oper, LtdPluggedEnhanced recovery—7502,608–2,616Jun 30, 1997
Herr-King Field Unit #711Van Oper, LtdCancelledEnhanced recovery—7502,533–2,554Jun 30, 1997
Herr-King Field Unit #718Van Oper, LtdPluggedEnhanced recovery—7502,530–2,536Jun 30, 1997
Herr-King Field Unit #720Van Oper, LtdPluggedEnhanced recovery—7502,568–2,624Oct 21, 1999
Cochran #4S.B. Street Oper, IncPluggedEnhanced recovery—7501,384–1,391Jan 2, 2003
Gist #3Paragon CorpPluggedOther—7503,282–3,285May 4, 1967
Box, I. H. #8Paragon CorpCancelledOther—7503,299–3,310May 4, 1967
Moore, Willie #3Paragon CorpPluggedOther—7503,275–3,285May 4, 1967
Box, I. H. -A- #5Paragon CorpCancelledOther—7503,300–3,307May 4, 1967
Box, I. H. -A- #9Paragon CorpPluggedOther—7503,300–3,315May 4, 1967
Spurrier, Earl #1Paragon CorpPluggedOther—7503,292–3,350May 4, 1967
Seale-Click #1 BSmith Pipe of AbileneCancelledDisposal—7003,630–3,997Apr 16, 1986
Windham #4Petranol America IncCancelledDisposal—7003,854–4,090Nov 12, 1984
Johnson Hrs. "Litigation #4Window Oper Co., TheCancelledDisposal—7002,605–2,666Apr 15, 1991
Johnson Heirs "Litigation" #4Alda Oil & Gas CorpCancelledDisposal—7003,320–3,338Nov 21, 1988
Jones Ranch #1Principal Oil CorpCancelledEnhanced recovery—7003,810–3,900Aug 3, 1995
Jones Ranch #10Principal Oil CorpCancelledEnhanced recovery—7003,840–3,983Sep 22, 1995
Windham, James T. #3CEncon Services, IncCancelledEnhanced recovery—7003,881–3,887Apr 8, 2002
Forbes #1O.G.O. RefiningCancelledEnhanced recovery—6303,687–3,691Jun 24, 1987
Jackson Estate #10Roper, Barbara JCancelledEnhanced recovery—602912–918Nov 23, 1983
Miller, E.G. #3Tracker MineralPluggedEnhanced recovery—6001,802–1,806Nov 25, 1987
Johnson Heirs "Litigation" #5Alda Oil & Gas CorpCancelledDisposal—6004,190–4,210Aug 23, 1990

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/callahan, documented in the API reference.