ST. JO RIDGE (BARNETT SHALE), District 09, 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
68
with a page here
Operators
12
Value, all time
$231.4 M
99% of the register's 69
Discovered
2001-09-07
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 68 leases in this field that have a page here — 99% of the register's 69 — 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
Oil251314,202 bbl317,518 mcfcasinghead2,415,909 bblsince discovery
Gas157121,399 mcf375 bblcondensate1,581,016 mcfsince 1970

The discovery well's oil measured 38.0° API gravity, perforated at 8,288 ft.

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
OilB2006-03-14467 ft1,200 ft1604,500 ft
OilO2006-03-14467 ft1,200 ft402,100 ft

Commission remarks: WITHIN DESIGN. INTERVAL OF FIELD, WHICH IS 7410'-8370'.

Counties

Leases in this field

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

LeaseOperatorValue
MOSLEYELEON OPERATORS, LLC$36.4 M
CRUMPEOG RESOURCES, INC.$22.1 M
SCALINGELEON OPERATORS, LLC$13.6 M
CRUMP-LUCAS UNIT 2EOG RESOURCES, INC.$11.3 M
GRANTELEON OPERATORS, LLC$10.5 M
MEADOR #3 UNITEOG RESOURCES, INC.$8.4 M
LUCAS UNIT #1EOG RESOURCES, INC.$8.2 M
MEADOR UNIT 1EOG RESOURCES, INC.$7.7 M
SCOTT RANCH #1ELEON OPERATORS, LLC$6.8 M
OLD BRASS & NEEDLEEOG RESOURCES, INC.$6.4 M
CRUMP-LUCAS UNIT #1EOG RESOURCES, INC.$5.8 M
SCOTTELEON OPERATORS, LLC$4.7 M
MEADOR UNIT #2EOG RESOURCES, INC.$4.4 M
LUCAS-OBN UNIT #2EOG RESOURCES, INC.$4.3 M
LUCAS-OBN UNIT 1EOG RESOURCES, INC.$4.3 M
LUCAS-OBN UNIT #3EOG RESOURCES, INC.$4.1 M
OLD BRASS & NEEDLE A1083LIME ROCK RESOURCES IV-A, L.P.$4.1 M
PAYNE RANCHEOG RESOURCES, INC.$4.0 M
THOMAS-MOSLEYELEON OPERATORS, LLC$3.9 M
WINGATE UNITHAWKBEND LLC$3.4 M
BOWIE, NEILEAGLERIDGE OPERATING, LLC$3.3 M
BLAKE-ALLISONLIME ROCK RESOURCES IV-A, L.P.$3.0 M
SEIBOLDEOG RESOURCES, INC.$2.9 M
FREEMAN A4EOG RESOURCES, INC.$2.7 M
SCOTT-THOMPSONCANAN OPERATING, INC.$2.7 M
WEGER THOMPSONEAGLERIDGE OPERATING, LLC$2.6 M
MEADOR RANCH 1-HEOG RESOURCES, INC.$2.3 M
FIELDS NO. 2 BARNETTSHALE UNITEOG RESOURCES, INC.$2.3 M
OBN-PAYNE UNIT #1EOG RESOURCES, INC.$2.1 M
BLOOMEREOG RESOURCES, INC.$2.0 M
LUCAS UNIT #2EOG RESOURCES, INC.$1.9 M
EMBRYARROWHEAD PRODUCTIONS, LP$1.9 M
OLD BRASS & NEEDLE A1083HAWKBEND LLC$1.9 M
LUCAS-OBN UNIT 1EOG RESOURCES, INC.$1.8 M
MCCOYW&W OIL AND GAS, INC.$1.7 M
CRUMP-LUCAS UNIT #1EOG RESOURCES, INC.$1.7 M
PHILLIPSW&W OIL AND GAS, INC.$1.7 M
FIELDSEOG RESOURCES, INC.$1.5 M
HAMILTON A1160LIME ROCK RESOURCES IV-A, L.P.$1.5 M
BAKERSAGE OIL AND GAS, LLC$1.3 M
HARRISEOG RESOURCES, INC.$1.3 M
WALTERSCHEIDWBH ENERGY PARTNERS LLC$1.2 M
RICHARDS A35EOG RESOURCES, INC.$1.2 M
LUCAS-STATE #2-1EOG RESOURCES, INC.$1.2 M
PERRYMANEAGLERIDGE OPERATING, LLC$1.1 M
MANNEOG RESOURCES, INC.$1.1 M
CRUMP-HARRIS #1EOG RESOURCES, INC.$1.1 M
LUCAS - STATE #1EOG RESOURCES, INC.$1.1 M
PAYNEEOG RESOURCES, INC.$1.0 M
LUCAS - STATE #1EOG RESOURCES, INC.$751 k
JONES A707LIME ROCK RESOURCES IV-A, L.P.$632 k
KUYKENDALL A - 583EOG RESOURCES, INC.$516 k
DENNISEOG RESOURCES, INC.$443 k
LINDSLEY A771ENCANA OIL & GAS(USA) INC.$318 k
LUCAS UNIT #2EOG RESOURCES, INC.$217 k
MEADOR UNIT #2EOG RESOURCES, INC.$153 k
BLAKE-ALLISONLIME ROCK RESOURCES IV-A, L.P.$143 k
LUCAS UNIT #1EOG RESOURCES, INC.$142 k
NUNNELEY A - 29CANAN OPERATING, INC.$71 k
RUNNING NEOG RESOURCES, INC.$71 k
LINDSLEY A771ENERVEST OPERATING, L.L.C.$50 k
OBN-PAYNE UNIT #1EOG RESOURCES, INC.$43 k
OLD BRASS & NEEDLEEOG RESOURCES, INC.$20 k
LUCAS-STATE #2-1EOG RESOURCES, INC.$7 k
MEADOR RANCH 1-HEOG RESOURCES, INC.$5 k
MANNEOG RESOURCES, INC.$3 k
SEIBOLDEOG RESOURCES, INC.$2 k
PAYNE RANCHEOG RESOURCES, INC.$1 k

Field number 79656050, from the Railroad Commission's field register. The register's own index resolves 69 leases and 78 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.