CALLAHAN COUNTY REGULAR, District 7B, Texas

A field is the Railroad Commission's unit of geology and of regulation. Its spacing rule is what decides how many wells an acreage can hold.

Leases
317
with a page here
Operators
179
Value, all time
$97.0 M
42% of the register's 751
Discovered
1924-12-31
Oil and gas

Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 317 leases in this field that have a page here — 42% of the register's 751 — so it understates the field.

Production, 2025

The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.

WellsIn the fieldProducingProduced in 2025Also producedCumulative
Oil51931519,016 bbl10,169 mcfcasinghead41,275,770 bblsince discovery
Gas41123 mcf0 bblcondensate145,064 mcfsince 1970

The discovery well's oil measured 36.0° API gravity.

Spacing rule

What the Commission requires of a well on this field.

The register files no field rule here. Statewide spacing applies.

Commission remarks: CLASS 4 (B) 6,000 - 8,000 467' - 1200' 40 AC 85 BARRELS

County

Leases in this field

Every lease here files this field's number with the Commission and has a page on this site.

Showing the 200 largest of 317 leases, by the value we compute. Every one of them is in the sitemap.

LeaseOperatorValue
HOOKS RANCH UNITGRAYROCK ENERGY II, LLC$5.7 M
SIMMONSUS. FUELS, INC.$3.7 M
DAVIS, J. T. ESTATEWYLIE BROS. PROD. & DRGL. CO,INC$3.3 M
FRANKE, WM.SIMPLE OPERATING LLC$3.2 M
MCFARLANESOUTHWEST GAS SYSTEMS, INC.$3.2 M
SNYDER-SEALESTOM-TOM OPERATING, LLC$3.0 M
JACKSON "D"HERD PRODUCING COMPANY, INC.$3.0 M
GEORGE 76CHARTER PETROLEUM COMPANY$2.9 M
EUBANK, R. O.500X OPERATING LLC$2.8 M
HARRIS-BARTONRUBY OPERATING COMPANY, INC$2.7 M
GREEN-WILLIAMS (MORAN) UNITGGP EXPLORATION, LTD.$2.4 M
HOOKS RANCH UNIT -A-GRAYROCK ENERGY II, LLC$2.3 M
OWENS, LUDIE H., -C-GOLDEN HORSE GROUP CORP.$2.2 M
MCFARLANE, J. W.ADENRYEN, LTD. CO.$2.2 M
WILLIAMS 2046AMPAK OIL COMPANY$2.1 M
RUDLOFF, JOHNWILSON WELL SERVICE INC.$1.9 M
MCDANIEL, WADEMIDSCO$1.6 M
BOOTHUS. FUELS, INC.$1.5 M
KING, KITTYROCK OPERATING$1.4 M
BREWER, FLOYDBRIDWELL OIL CO.$1.4 M
ANTILLEY, JOE I.SHAHAN, DONALD ALLAN$1.4 M
SEALE, F. L. TRUST -B-CDJ OIL COMPANY, LLC$1.4 M
SNYDER 211QUAIL WELL SERVICE, INC.$1.2 M
DAVIS, S. M.MERKAZ DRILLING, LLC$1.2 M
CROCKETT, J. E.K & W VANPELT COMPANY$1.2 M
WILLIAMS "2976"PETEX$1.1 M
BROWN UNITXTREME OPERATING COMPANY LLC$1.1 M
MCDANIEL, B. D.LANDMASTER PARTNERS, INC.$1.1 M
NORVELL, CHESTERWYLIE BROS. PROD. & DRGL. CO,INC$1.0 M
GARFIELDTCS PETROLEUM CO., LLC$965 k
ALVEY ESTATECYBER ENVIRO-TECH INC$961 k
WESTERMAN, C. C.WILSON WELL SERVICE INC.$905 k
PURCELL, LAWRENCE "A"INTERSTATE EXPLORATIONS LLC$891 k
HARRIS, L. T.RUFF OIL CO.$809 k
SEALE, F. L., TRUSTCDJ OIL COMPANY, LLC$756 k
KENNARD, MABELC & C PETROLEUM MANAGEMENT, LLC$726 k
SHIRLEY, JEWELL R.SWEET TEXAS T ENERGY LLC$677 k
JACKSON -E-OHLHAUSEN OIL COMPANY$665 k
HUBBARDMOMENTUM OPERATING CO., INC.$652 k
WINDHAM '22'TRACKER MINERAL$621 k
JACK REESED.J. & T. ENERGY$619 k
MORRISSETT "A"SOJOURNER DRILLING CORPORATION$602 k
MCCOLLUMUS. FUELS, INC.$563 k
CHAPMANPROBE EXPLORATION COMPANY$548 k
RAMSEY, CAL -B-M2 SQUARED OPERATING, LLC$539 k
EVANS, J. W. -B-TEXAS SANDS RESOURCES, LLC$538 k
WYLIE,FRED JR.HASKIT, KENDALL$535 k
NEUMANN, J. G. /JACK/ENTERRA CAPITAL, INC.$526 k
FRED HARTJ & TG, LLC$506 k
SNYDER "117"WILLIAMS DEVILLE OPERATING, INC.$495 k
SNYDER, LULAH C OIL COMPANY$457 k
FLORES, JACKTCS PETROLEUM CO., LLC$438 k
SNYDER, C.B.GNG OPERATING LLC$432 k
WILLIAMS, R. D.DARK CANYON RESOURCES LLC$429 k
ISENHOWER, JOHN D.CLAUSEN, A. G.$424 k
RAMSEY, CALM2 SQUARED OPERATING, LLC$402 k
PUCKETT, RAMONINTERSTATE EXPLORATIONS LLC$397 k
CAUTHEN, J. D. ET UXINTERSTATE EXPLORATIONS LLC$385 k
LAREATAHESS, JERRY OPERATING CO.$381 k
DAVIS ESTATE "A"COUCH OIL & GAS, INC.$380 k
HENDERSON, E. E.WILSON WELL SERVICE INC.$371 k
ISBELLD.J. & T. ENERGY$366 k
SCOTT-BARTONRUBY OPERATING COMPANY, INC$363 k
MCWILLIAMS 207QUAIL WELL SERVICE, INC.$338 k
PRUET, G.S.SWEET TEXAS T ENERGY LLC$305 k
SHARP, A. J.MOMENTUM OPERATING CO., INC.$293 k
ARROWOOD, W. A.WILSON WELL SERVICE INC.$287 k
3-J'STCS PETROLEUM CO., LLC$267 k
JACKSON, I. N.OHLHAUSEN OIL COMPANY$259 k
FOSTER, NATHANREO OPERATING LLC$258 k
HOOKS5L PROPERTIES, INC.$256 k
WILLIAMS, R. D.SWEET TEXAS T ENERGY LLC$255 k
HENDERSON, E. E.K R WELL TECHNOLOGY, LLC$247 k
STACY, F. W.COTULA OIL & GAS CO., INC.$247 k
DAVISON 6NOSIVAD OIL, INC.$244 k
BARTON, TOMRUBY OPERATING COMPANY, INC$243 k
ROSS ADARA EXPLORATIONS, LLC$241 k
SIMMONS "B"US. FUELS, INC.$241 k
GUYGRAYROCK ENERGY II, LLC$240 k
BAUMD.J.F. SERVICES, INC.$239 k
PIPPEN, J. L.INTERSTATE EXPLORATIONS LLC$239 k
BURNAM, M.G., "A"1836 ENERGY LLC$232 k
ISENHOWERDIAMOND S MASADA LLC$231 k
DAKOTAD.J.F. SERVICES, INC.$230 k
GUITARGRAYROCK ENERGY II, LLC$226 k
ABRAMS -A-MILLER, DONNY$215 k
JOBEGIDEON OPERATING$214 k
ISENHOWERCLAUSEN, A. G.$203 k
ROSS, A.C. '110'BACON ENERGY$201 k
HENDERSON, E. E. -B-WILSON WELL SERVICE INC.$197 k
WILLIAMS, LOUIETX (GEORGIA) HOLDINGS, INC.$196 k
SHIRLEY "B"SWEET TEXAS T ENERGY LLC$193 k
PARK, J. F., ET ALPM OIL & GAS, INC.$187 k
DILLER, SAM A.SWEET TEXAS T ENERGY LLC$181 k
GUITAR "79"GRAYROCK ENERGY II, LLC$181 k
BAUMD.J.F. SERVICES, INC.$178 k
DUGANATWELL TECHNICAL SERVICES, INC.$175 k
WYLIE 'C'HASKIT, KENDALL$170 k
LONG, E. M.K R WELL TECHNOLOGY, LLC$168 k
WILLIAMS, LOUIE "B"TX (GEORGIA) HOLDINGS, INC.$150 k
ODOM, BLANMOMENTUM OPERATING CO., INC.$138 k
"4" SNYDER MINERAL TRUSTMC GLOVER, LLC$138 k
GRIGGS, R. L.SOUTHWEST GAS SYSTEMS, INC.$137 k
BAUMTK OPERATING$135 k
JACKSON, ELMAWILLIAMS DEVILLE OPERATING, INC.$135 k
BAILEY, HENRYISBELL, BOB G. OPERATING$131 k
BOND, E. F.MIDSCO$131 k
JOBEBEASLEY WELL SERVICE INC.$130 k
FANOUSIRON BELL OPERATING, LLC$128 k
MASKSANDSTONE SERVICES, LLC$127 k
JACKSON "A"ABERNATHY AUTO, INC.$122 k
BLACK, J. R.HUMPHREY-BASHFORD OIL, INC.$121 k
BETCHER, ALBERT, JR.ATWELL TECHNICAL SERVICES, INC.$120 k
CROCKETT, D. T.CROCKETT BROS. OF CROSS PLAINS$118 k
EDINGTON, R. E.K & W VANPELT COMPANY$116 k
MASKRG1 ENERGY, LLC$115 k
PRUETT 2277SEQUOIA ENERGY RESOURCES$114 k
LOVING, P.B.WHITT OIL & GAS, INC.$104 k
ISBELLKASLE ENERGY INC.$102 k
BURNAMMASADA OIL & GAS COMPANY LTD.$101 k
JACKSON -C-SEQUOIA FOSSIL FUELS, INC.$100 k
FRANKE, WM.TURNER, GREG$98 k
PRUETT, W. E.SWEET TEXAS T ENERGY LLC$98 k
WILLIAMS, R. D. "A"DIAMOND S MASADA LLC$95 k
CONNELLY, FAITHPETROFIEDA$91 k
HOOKS "91"GRAYROCK ENERGY II, LLC$86 k
RAMSEY, E.V.SABRE OIL AND GAS CORP.$80 k
SNYDER-189AMERICAN OPERATING COMPANY (A)$77 k
MCFARLANE, J.W.CWO ENERGY, LLC$76 k
JACKSON, ELMAABERNATHY AUTO, INC.$72 k
SMITHSABRE OIL AND GAS CORP.$70 k
WYLIE 'K'HASKIT, KENDALL$69 k
BAUM "A"D.J.F. SERVICES, INC.$69 k
DAVIS, J.L. ESTATELOW-END OIL LLC$67 k
CARTERREO OPERATING LLC$66 k
MACDONALDWHITEHEAD PROD. CO., INC.$65 k
DUDLEY SOUTH UNITJONES, JANSEN M.$64 k
BURNSIDE,M.L. & HURST,L.L.HUNT OPERATING, LLC$60 k
PARKSIRON BELL OPERATING, LLC$58 k
ODOM, BLAN -B-ALLEGRO OPERATING, INC.$57 k
DICKEYFRONTIER OPERATING CORPORATION$56 k
KENNARD, MABEL -A-OHLHAUSEN OIL COMPANY$56 k
GREENE RANCHGREENE, R. E.$56 k
WHITEHEAD, L. K.ABERNATHY AUTO, INC.$55 k
SURLES, MARSTONBRIDGER PETROLEUM, LLC$55 k
BURNAM, M.G.1836 ENERGY LLC$55 k
FINLEY, N. L.WELLS OILFIELD SERVICES, INC.$54 k
JACKSONSEQUOIA FOSSIL FUELS, INC.$53 k
WESTWOOD-BONDCLARK, B. C.$52 k
RONE, FRANKDJM BEASLEY WELL SERVICE$52 k
NEUMANNCLAUSEN, A. G.$51 k
HICKMANKING OIL & GAS CO.$51 k
WILLIAMS, L.SWEET TEXAS T ENERGY LLC$50 k
EDWARDS, S. E.MOMENTUM OPERATING CO., INC.$49 k
JONES A.M.RAYCO OPERATING, INC.$43 k
LA REATABLUE OIL, INC.$42 k
MITCHAM, G. P.L.C.S. PRODUCTION COMPANY$42 k
ROGGENSTEINMASADA OIL & GAS COMPANY LTD.$42 k
SOWELLABILENE AMERICAN ENERGY, LLC$42 k
SNYDER MINERAL TRUST 143L.C.S. PRODUCTION COMPANY$41 k
GRANNYNOSIVAD OIL, INC.$41 k
EDINGTON "A"K & W VANPELT COMPANY$39 k
HAVENS, SILASAYERS, R.B.$38 k
HOWESEQUOIA FOSSIL FUELS, INC.$37 k
SNYDER RANCHQUEST EMG, INC.$34 k
EDWARDS, S. E.ALLEGRO OPERATING, INC.$33 k
NEUMANNNEUMANN VENTURES, INC.$33 k
NEUMAN, J.MASADA OIL & GAS COMPANY LTD.$31 k
MOOREMOORE, MILES INC.$30 k
WILLIAMS, LOUIE "A"TX (GEORGIA) HOLDINGS, INC.$29 k
HOWE NORTHSEQUOIA FOSSIL FUELS, INC.$28 k
JACKSON ESTATEW.G. OIL$28 k
ELLIOTT 55 "A"LOS HIJOS DE SANCHEZ J LLC$28 k
JACKSONVAN OPERATING, LTD.$26 k
BROWN, JOSIE W. -A-WILCO PROPERTIES, INC.$26 k
PARSONS, WILLIEF & S PRODUCTION$26 k
MORRISET "Z"JENN OIL$24 k
LAREATA 'A'HESS, JERRY OPERATING CO.$22 k
MCKINNEY, R. L.COUCH, GILBERT$21 k
HOUGH, WILLISCRUDE PRODUCTION COMPANY$21 k
HAVENS IIMIDSCO$21 k
INGRAM, JOE "A"SOJOURNER DRILLING CORPORATION$20 k
RAMSEY, MARY "B"SWEET TEXAS T ENERGY LLC$20 k
HOGAN, BILLIE B.WYLIE BROS. PROD. & DRGL. CO,INC$20 k
COUGHRAN, G. W.JOINT RESOURCES COMPANY$20 k
PIPPEN, J.L. "A"STEWART, JOSEPH THOMAS$17 k
RAMSEY, MARY "C"SWEET TEXAS T ENERGY LLC$17 k
MORRISSETT "X"JENN OIL$17 k
WILLIAMS, R. D.HUNTER OIL & GAS CO.$17 k
CLEMMERT & B OIL & GAS$16 k
FANOUSWEST INLAND ENERGY, INC.$16 k
HARTJ & TG, LLC$16 k
MEADOWS, C.C.TRACKER MINERAL$15 k
RAMSEY, MARY "A"SWEET TEXAS T ENERGY LLC$14 k
WAGLEY, H.V.STEWART, JOSEPH THOMAS$14 k
DAVIS ESTATE 'B'COUCH OIL & GAS, INC.$13 k
JACKSON "5"SEQUOIA FOSSIL FUELS, INC.$13 k
WILLIAMS. L.L.SEQUOIA FOSSIL FUELS, INC.$12 k
ALLEN-BARNARDNOSIVAD OIL, INC.$12 k
MCFARLANE, J. W. -A-FURRY OIL & GAS, INC.$11 k

Field number 14820001, from the Railroad Commission's field register. The register's own index resolves 751 leases and 3,583 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.