SHACKELFORD 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
670
with a page here
Operators
229
Value, all time
$382.9 M
50% of the register's 1,335
Discovered
1913-12-31
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 670 leases in this field that have a page here — 50% of the register's 1,335 — 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
Oil1,43272697,998 bbl40,941 mcfcasinghead105,597,505 bblsince discovery
Gas61760 mcf0 bblcondensate871,128 mcfsince 1970

The discovery well's oil measured 40.0° 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 W/DAILY 82 = 6000 TO 8000'

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 670 leases, by the value we compute. Every one of them is in the sitemap.

LeaseOperatorValue
DAWSON & CONWAY -B-OVERLAND OPERATING COMPANY, LLC$10.7 M
NAIL RANCH BLOCK 3CLAVO OIL, LLC$9.8 M
LEE, T. W. -A-JTC ROYALTIES LLC$9.1 M
NAIL "WE"PETEX$8.0 M
HOOKER TRUST -B-JTC ROYALTIES LLC$7.8 M
NAIL 80SPETEX$7.3 M
HAYDEN-HUBBARD (MORAN SAND) UNITMOMENTUM OPERATING CO., INC.$6.6 M
MORRIS, J. P.RIGGED UP, LLC$6.3 M
HOOKER TRUSTRATTLESNAKE MOUNTAIN OIL LLC$6.2 M
PARROTT-JETERJUST OIL & GAS, INC.$6.2 M
JETER, E. A.JUST OIL & GAS, INC.$6.0 M
WALLER, C. W.WALLER, C.W. OIL CO.$5.5 M
MOOREJ & TG, LLC$5.0 M
NAIL ZIJACOBS, C. E., CO.$4.9 M
NAIL, CHLOE A.CLAVO OIL, LLC$4.5 M
MORRIS, J. P., ESTATERIGGED UP, LLC$4.4 M
MOBERLEY, R. J., JR.HUGHES & PATTERSON OPER. CORP.$4.3 M
HOOKER TRUST- -KEY LEE-COBRA OIL & GAS CORPORATION$4.1 M
POLLEY UNITSOJOURNER DRILLING CORPORATION$4.0 M
HENDRICK, T. G.SOJOURNER DRILLING CORPORATION$3.9 M
NAIL TRACT 3ROBERT C. BROWER, LLC$3.6 M
NAIL WCPETEX$3.5 M
MORRIS "M"RIGGED UP, LLC$3.5 M
STASNEY'S COOK RANCH "57"STASNEY WELL SERVICE, LLC$3.4 M
DILLER, VIRGINIACROW, KEN$3.4 M
MATTHEWS - 31ROCOSO RESOURCES, LLC$3.2 M
DAVIS, W. Y.SCHKADE PRODUCTION CO.$3.2 M
HENDRICK 75BPETEX$3.2 M
DAVISDARA EXPLORATIONS, LLC$3.1 M
ACKERS 24OVERLAND OPERATING COMPANY, LLC$3.1 M
DOUGLAS, W. L.RUFF OIL CO.$2.9 M
NAIL-137DOUBLE C OPERATING LLC$2.9 M
OWENS, W. C.TABOR CREEK OIL COMPANY$2.8 M
DAVIS, MERRICKUNITED OPERATING, LLC$2.8 M
NEWELL SEC. 2CDJ OIL COMPANY, LLC$2.7 M
DAVIS, MERRICKSCHKADE PRODUCTION CO.$2.7 M
MATTHEWS, J.B.JTC ROYALTIES LLC$2.6 M
DAWSON & CONWAYRIGGED UP, LLC$2.6 M
MORRIS, J.P. "189"GOLDEN HORSE GROUP CORP.$2.5 M
PITTMAN 4COOPER OIL & GAS, LLC$2.5 M
HENDRICK, T. G. EST.VAN OPERATING, LTD.$2.3 M
SEDWICK, JOHN F. "A"JTC ROYALTIES LLC$2.3 M
REAMES "A" LEASEBLUFF CREEK PETROLEUM, LLC$2.3 M
REYNOLDS, W. D.SCOTT OPERATING, INC.$2.3 M
NAIL '136-A'BLUFF CREEK PETROLEUM, LLC$2.2 M
LEE, T. W.JTC ROYALTIES LLC$2.1 M
LEE, T. W. -E-JTC ROYALTIES LLC$2.1 M
MATTHEWS-C-JTC ROYALTIES LLC$2.0 M
DAWSON & CONWAY /WEST. TEX./SNYDER DRILLING CORP.$2.0 M
ARNOLD, J. H.DARK CANYON RESOURCES LLC$2.0 M
NAIL WKPETEX$2.0 M
MARQUERITE CHISMMIDVILLE ENERGY, LLC.$2.0 M
CALDWELLOAKTREE OIL COMPANY$1.9 M
HENDRICK, T. G. -A-MOMENTUM OPERATING CO., INC.$1.9 M
WALLER, W.WALLER, C.W. OIL CO.$1.9 M
ENGLISH, J. J.TABOR CREEK OIL COMPANY$1.8 M
LONES, H. A.BL PRODUCTION, LLC$1.8 M
ROUGH HOLLOW -A-5L PROPERTIES, INC.$1.7 M
PITTMAN, LAVER "572"SALTY LIME ENERGY, LLC$1.7 M
NAIL 12EJACOBS, C. E., CO.$1.7 M
STOKES, S. V.BASIN OPERATING INC.$1.7 M
SOUTH GREEN "2-51"BASIN OPERATING INC.$1.6 M
PRITCHARD, MRS. J. H.CROW, KEN$1.6 M
CASEY 30 "B"STRAWN OPERATING CO., L.L.C.$1.6 M
HUFFMAN-MATTHEWSWM WILD WOLF PRODUCTION LLC$1.6 M
WATERS, G. E.SIRENA HOLDINGS LLC SERIES 1$1.6 M
GREEN, NEAL ESTATEJTC ROYALTIES LLC$1.5 M
NAIL NCJACOBS, C. E., CO.$1.5 M
COMPTON, W.S. -A-TABOR CREEK OIL COMPANY$1.5 M
GREEN, W. H.-KEYBASIN OPERATING INC.$1.5 M
NAIL, ETALCLAVO OIL, LLC$1.4 M
TRICE, W. G., MRS.BASIN OPERATING INC.$1.4 M
ROUGHHOLLOWJTC ROYALTIES LLC$1.4 M
HENDRICK, T. G. EST.WILLIAMS DEVILLE OPERATING, INC.$1.4 M
DOUGLAS, W. L.PRICKLY PAIR PRODUCTION$1.4 M
MORRIS "H"RIGGED UP, LLC$1.4 M
NAIL 152BS2 OIL, LLC (1)$1.4 M
NAIL WBJACOBS, C. E., CO.$1.4 M
COOK 85-60 POOLED UNITSTASNEY WELL SERVICE, LLC$1.4 M
REAMES "A"IRON HORSE OIL & GAS, INC.$1.4 M
REYNOLDS, G. E.WHITT OIL & GAS, INC.$1.3 M
KOENIG, MERL D.PRICKLY PAIR PRODUCTION$1.3 M
MUSSELMAN "24"BASIN OPERATING INC.$1.3 M
LEE, T. W. -B-IKARD, ALAN$1.3 M
MORRIS, J. P. "N"RIGGED UP, LLC$1.2 M
NAIL, J. H. -D-CLAVO OIL, LLC$1.2 M
MORRIS J.P. "A"TOM-TOM OPERATING, LLC$1.2 M
MATTHEWS, J. B. SEC. 32GREEN, MICHAEL OIL$1.2 M
SANDERS, L. A.DARA EXPLORATIONS, LLC$1.2 M
B & DGORDON B SERVICES LLC$1.2 M
ALEXANDER, F. W.JNS PRODUCTION, LLC$1.2 M
BREWSTER, N. J.DARK CANYON RESOURCES LLC$1.2 M
OWENS, B. L.TABOR CREEK OIL COMPANY$1.2 M
DENNIS HEIRSSANDSTONE SERVICES, LLC$1.1 M
MORRIS, J. P.FTC CONSULTING, LLC$1.1 M
WALKER-BUCKER TRUST "B"SNYDER DRILLING CORP.$1.1 M
FRANK ANDREWSOAKTREE OIL COMPANY$1.1 M
LEECH HEIRSPETEX$1.1 M
MATTHEWS - 33 & 34JTC ROYALTIES LLC$1.1 M
DAWSON-CONWAY 195 "B"TAM2 SQUARED ENERGY SERVICES,LLC$1.1 M
VINES, W. C.KARPER OIL & GAS CORPORATION$1.1 M
ROYALLPETEX$1.1 M
SEDWICK, J. F.BASIN OPERATING INC.$1.0 M
SANDERS, LEE A.CLEARFORK GAS CO.$1.0 M
HENDRICK YJACOBS, C. E., CO.$994 k
NAIL WIJACOBS, C. E., CO.$993 k
STOKES, S.V.SHEETS EXPLORATION CO., INC.$983 k
ENGLISH, MARGIESANDSTONE SERVICES, LLC$981 k
SCOTT, J. S.J & TG, LLC$973 k
SCHOOLERAPEX PRODUCTION LTD.$967 k
JAMESON "C"GORDON B SERVICES LLC$964 k
SPELL, EMMARED MAN OIL, CO.$951 k
LEE, T. W.SCOTT OPERATING, INC.$950 k
MILLER, MORRIS 169GOLDEN HORSE GROUP CORP.$940 k
GREEN, WILLIE G., ETALPRICKLY PAIR PRODUCTION$936 k
BRITTINGHAM TRUST "D"SPRING TREE MANAGEMENT LC$913 k
NAIL "136"BLUFF CREEK PETROLEUM, LLC$909 k
DENNIS, J. S.SANDSTONE SERVICES, LLC$905 k
ACKERSSCHKADE PRODUCTION CO.$894 k
PETREE, GRADYOAKTREE OIL COMPANY$892 k
ALEXANDER, F. W. -A-JNS PRODUCTION, LLC$891 k
MATTHEWS, J. B.JNS PRODUCTION, LLC$885 k
DEAN BROS. "A"RATTLESNAKE MOUNTAIN OIL LLC$875 k
ALEXANDER, F. W., -B-JNS PRODUCTION, LLC$871 k
CASEY 30 "A"STRAWN OPERATING CO., L.L.C.$831 k
GRIFFIN GIVENS UNITPETEX$822 k
BROADFOOT, R. L.TABOR CREEK OIL COMPANY$817 k
WILLIAMSSOJOURNER DRILLING CORPORATION$811 k
RUFF, J. H.RUFF OIL CO.$799 k
BROOKS, TOMPETEX$781 k
FRYE, ANNA F. -B-PRICKLY PAIR PRODUCTION$772 k
NAIL RANCH BLOCK 4CLAVO OIL, LLC$763 k
ROCKY TOP 31JTC ROYALTIES LLC$757 k
POOL, FLOYD C.DARK CANYON RESOURCES LLC$747 k
MATTHEWS, WINTONDAVIS, SAMMY$745 k
WALKER-BUCKLER UNITGROTHE, M.L. EST.$736 k
JETER, E. A. -A-JUST OIL & GAS, INC.$729 k
LATIMER VICKERS FAY AUDIEBEASLEY WELL SERVICE INC.$716 k
HILLTEX 136BEEHIVE OPERATING, LLC$709 k
HUSKEY, L. C.MESQUITE LAND & MINERALS CO.$707 k
LOWETABOR CREEK OIL COMPANY$672 k
HENDRICK RANCH 'S'BLUFF CREEK PETROLEUM, LLC$659 k
HICKMAN, REAVES -A-JTC ROYALTIES LLC$658 k
BAKER, BURLSANDERS ENERGY LLC$656 k
ROXANA-RICEPRICKLY PAIR PRODUCTION$628 k
JETERJUST OIL & GAS, INC.$621 k
NAIL "D" 106M & K OPERATING LLC$620 k
HENDRICK 74CPETEX$612 k
NAIL "92"FTC CONSULTING, LLC$609 k
MORRIS, J. P. ESTATE -A-RIGGED UP, LLC$606 k
KELLY, EDNA F. ETALBRIDWELL OIL CO.$604 k
DAVIS, G. R. -D-DBC OPERATING COMPANY LLC$597 k
EDGAR, R. H.SADDLE CREEK OIL, LLC$588 k
REVES, BERTHA F. "A"PRICKLY PAIR PRODUCTION$582 k
DAVIS, G.R. JSCHKADE PRODUCTION CO.$579 k
SWENSON, W.G. "A"FTC CONSULTING, LLC$578 k
HANDRICK ESTATESOJOURNER DRILLING CORPORATION$575 k
HENDRICK D/C UNITSTOVALL OPERATING CO.$575 k
SWENSON, W.G. "B"FTC CONSULTING, LLC$572 k
NAIL 150FTC CONSULTING, LLC$569 k
STASNEY'S COOK RANCH 59STASNEY WELL SERVICE, LLC$558 k
REVES UNITSCOTT OPERATING, INC.$557 k
BRADFORD "B"GUY, JULAINE$557 k
MORRIS, J. P. -K-RIGGED UP, LLC$551 k
OWENS, B. L.RAY - A OPERATING INC.$544 k
HATERIUS, A.GLAHN RESOURCES, INC.$544 k
NEWELL "A"BEASLEY WELL SERVICE INC.$533 k
NAIL RANCH 152S2 OIL, LLC (1)$529 k
DAWSON-CONWAYSTRIKE TOO OIL$526 k
CARTER, JOHN E.RUFF OIL CO.$524 k
ANDREWS, FRANKSUNDANCE CONSULTING CORP.$515 k
ACKERS 23OVERLAND OPERATING COMPANY, LLC$515 k
BRADFORD "B"TABOR CREEK OIL COMPANY$511 k
DE LAFOSSEOAKTREE OIL COMPANY$493 k
POOL, R. B.P.I.D. DRILLING INC$492 k
BRADFORD "A"GUY, JULAINE$492 k
HENDRICK, T.G. EST. -A-BLUFF CREEK PETROLEUM, LLC$482 k
HAGO "B"JNS PRODUCTION, LLC$478 k
HUMBER, W. P.HUMBER OIL COMPANY$477 k
NAIL ZNJACOBS, C. E., CO.$476 k
CLAUSELL-LONG -575-ATWELL TECHNICAL SERVICES, INC.$475 k
HAGO "E"JNS PRODUCTION, LLC$473 k
NAIL 133BLUFF CREEK PETROLEUM, LLC$463 k
NEWELL, DELLCLAVO OIL, LLC$458 k
ENGLISH, W.L. "A"RAY - A OPERATING INC.$454 k
HAGO "D"JNS PRODUCTION, LLC$452 k
GLADDEN, M.O.OAKTREE OIL COMPANY$450 k
NAIL RANCH 152AS2 OIL, LLC (1)$450 k
CASEY '30'STRAWN OPERATING CO., L.L.C.$442 k
DAVIS, G. R.FRONTIER OPERATING CORPORATION$431 k
HAGO AJNS PRODUCTION, LLC$429 k
NEWELL "B"IRON HORSE OIL & GAS, INC.$427 k
HAGO "F"JNS PRODUCTION, LLC$426 k
WALKER-BUCKLER TRUST 380-381HILLTEX OPERATING COMPANY, LLC$424 k
GUY RANCH '78"PATTON EXPLORATION, INC.$424 k
HILLTEX RIVER RANCH 523HILLTEX OPERATING COMPANY, LLC$421 k
MORRIS "J"RIGGED UP, LLC$412 k
HAGO "C"JNS PRODUCTION, LLC$409 k
CHAMBERS, R.H. "B"WILLIAMS DEVILLE OPERATING, INC.$407 k
PICKARD, EUGENEBASIN OPERATING INC.$400 k

Field number 82522001, from the Railroad Commission's field register. The register's own index resolves 1,335 leases and 6,064 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.