STILES RANCH (GRANITE WASH CONS), District 10, 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
809
with a page here
Operators
26
Value, all time
$8.14 bn
89% of the register's 906
Discovered
2008-06-24
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 809 leases in this field that have a page here — 89% of the register's 906 — 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
Oil000 bbl0 mcfcasinghead156,541 bblsince discovery
Gas73048721,387,399 mcf392,073 bblcondensate1,245,036,412 mcfsince 1970

The discovery well's oil measured 50.0° API gravity, perforated at 16,164 ft.

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
GasB2011-01-13467 ft0 ft400 ft
OilB2011-10-11467 ft0 ft402,100 ft

Commission remarks: FIELD. EFFECTIVE 4/12/16.

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

LeaseOperatorValue
STILES 68FORMENTERA OPERATIONS LLC$86.7 M
STILES 67UNBRIDLED RESOURCES, LLC$61.7 M
FRYEPRESIDIO PETROLEUM LLC$60.4 M
ATHERTON 69UNBRIDLED RESOURCES, LLC$53.9 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$47.1 M
STILES 18FORMENTERA OPERATIONS LLC$46.9 M
BARTZ 19FORMENTERA OPERATIONS LLC$46.2 M
DAVIS 65UNBRIDLED RESOURCES, LLC$46.0 M
STILES 3SLFORMENTERA OPERATIONS LLC$44.3 M
BRITT RANCH E 8SLPRESIDIO PETROLEUM LLC$44.1 M
DOBSON RANCH 40UNBRIDLED RESOURCES, LLC$44.0 M
STILES 3FORMENTERA OPERATIONS LLC$43.7 M
BRITT RANCH I 4SLPRESIDIO PETROLEUM LLC$43.7 M
MCCOY 27PRESIDIO PETROLEUM LLC$42.4 M
MILLER SPINNEY 39UNBRIDLED RESOURCES, LLC$40.8 M
RIZLEY-BRUMMETT 22UNBRIDLED RESOURCES, LLC$39.9 M
FRYE RANCH 10PRESIDIO PETROLEUM LLC$39.5 M
WEATHERLYPRESIDIO PETROLEUM LLC$38.4 M
DAVIS 65UNBRIDLED RESOURCES, LLC$37.5 M
STILES 18FORMENTERA OPERATIONS LLC$37.4 M
STILES 1FORMENTERA OPERATIONS LLC$37.0 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$36.8 M
MILLERUNBRIDLED RESOURCES, LLC$36.4 M
BURRELLAPACHE CORPORATION$35.8 M
ARMSTRONGUNBRIDLED RESOURCES, LLC$35.4 M
BROWNPRESIDIO PETROLEUM LLC$35.3 M
STILES RANCH 23UNBRIDLED RESOURCES, LLC$33.7 M
BLACK 50PRESIDIO PETROLEUM LLC$33.2 M
STILES 1FORMENTERA OPERATIONS LLC$33.0 M
WEATHERLYPRESIDIO PETROLEUM LLC$32.5 M
MOORE 62FORMENTERA OPERATIONS LLC$31.1 M
MILLER SPINNEY 39UNBRIDLED RESOURCES, LLC$30.6 M
BARTZ 19FORMENTERA OPERATIONS LLC$30.3 M
MILLER 2UNBRIDLED RESOURCES, LLC$29.7 M
FRYEPRESIDIO PETROLEUM LLC$29.2 M
BROWNPRESIDIO PETROLEUM LLC$28.6 M
STILES 16FORMENTERA OPERATIONS LLC$28.2 M
ATHERTON 69UNBRIDLED RESOURCES, LLC$27.9 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$27.7 M
BARTZ 19FORMENTERA OPERATIONS LLC$27.1 M
BARTZ 19FORMENTERA OPERATIONS LLC$27.0 M
HUFF RANCH 48PRESIDIO PETROLEUM LLC$26.8 M
BRITT 7PRESIDIO PETROLEUM LLC$26.2 M
WEATHERLYPRESIDIO PETROLEUM LLC$26.1 M
MCCOY 27PRESIDIO PETROLEUM LLC$25.9 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$25.8 M
BRUMMETT 22AUNBRIDLED RESOURCES, LLC$25.6 M
DAVISPRESIDIO PETROLEUM LLC$25.4 M
TYLER 55FORMENTERA OPERATIONS LLC$25.1 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$24.9 M
STILES 67UNBRIDLED RESOURCES, LLC$24.9 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$24.6 M
TYLER 55FORMENTERA OPERATIONS LLC$24.1 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$24.1 M
MCCOY 27PRESIDIO PETROLEUM LLC$23.6 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$23.5 M
JILL 54FORMENTERA OPERATIONS LLC$23.3 M
STILES 24FORMENTERA OPERATIONS LLC$23.3 M
BRITT 9PRESIDIO PETROLEUM LLC$23.0 M
STILES 16FORMENTERA OPERATIONS LLC$22.9 M
STILES 1FORMENTERA OPERATIONS LLC$22.5 M
THOMAS 5PRESIDIO PETROLEUM LLC$22.4 M
SMITH, A.C.PRESIDIO PETROLEUM LLC$22.1 M
BYRDPRESIDIO PETROLEUM LLC$21.8 M
BRYANT 21X40CUNBRIDLED RESOURCES, LLC$21.5 M
JERRI REED SLUNBRIDLED RESOURCES, LLC$21.4 M
STILES 4FORMENTERA OPERATIONS LLC$21.2 M
MARILYNFORMENTERA OPERATIONS LLC$21.2 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$21.1 M
BRITT 38UNBRIDLED RESOURCES, LLC$21.1 M
STILES 67UNBRIDLED RESOURCES, LLC$21.1 M
STILES 24FORMENTERA OPERATIONS LLC$21.0 M
STILES 68FORMENTERA OPERATIONS LLC$20.8 M
ATHERTONUNBRIDLED RESOURCES, LLC$20.8 M
ATHERTON 2X69UNBRIDLED RESOURCES, LLC$20.7 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$20.5 M
THOMASUNBRIDLED RESOURCES, LLC$20.5 M
STILES RANCH 5UNBRIDLED RESOURCES, LLC$20.4 M
STILES 1FORMENTERA OPERATIONS LLC$20.3 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$20.2 M
STILES 4FORMENTERA OPERATIONS LLC$20.1 M
DUPONT 1PRESIDIO PETROLEUM LLC$20.1 M
STILES 67UNBRIDLED RESOURCES, LLC$20.1 M
THOMASUNBRIDLED RESOURCES, LLC$19.9 M
STILES 4FORMENTERA OPERATIONS LLC$19.8 M
BRUMMETT 22AUNBRIDLED RESOURCES, LLC$19.7 M
BRITT 8PRESIDIO PETROLEUM LLC$19.7 M
DOBSON RANCH 40UNBRIDLED RESOURCES, LLC$19.5 M
TYLER 55FORMENTERA OPERATIONS LLC$19.5 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$19.5 M
STILES 18FORMENTERA OPERATIONS LLC$19.3 M
DAVIS 64UNBRIDLED RESOURCES, LLC$19.2 M
SIDNEYFORMENTERA OPERATIONS LLC$19.2 M
DAVIS 65UNBRIDLED RESOURCES, LLC$18.8 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$18.8 M
STILES 16FORMENTERA OPERATIONS LLC$18.7 M
TYLER 55FORMENTERA OPERATIONS LLC$18.6 M
DUPONT 1PRESIDIO PETROLEUM LLC$18.6 M
MCCOY 27PRESIDIO PETROLEUM LLC$18.6 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$18.5 M
CALCOTE 63FORMENTERA OPERATIONS LLC$18.4 M
STILES 24FORMENTERA OPERATIONS LLC$18.2 M
DAVIS 64UNBRIDLED RESOURCES, LLC$18.2 M
D. BRITT 4PRESIDIO PETROLEUM LLC$18.2 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$17.9 M
JILL 54FORMENTERA OPERATIONS LLC$17.7 M
DOBSON RANCH 27 WELUNBRIDLED RESOURCES, LLC$17.7 M
WILLIAMS 33PRESIDIO PETROLEUM LLC$17.6 M
MILLERUNBRIDLED RESOURCES, LLC$17.5 M
STILES 68FORMENTERA OPERATIONS LLC$17.4 M
D. BRITT 4PRESIDIO PETROLEUM LLC$17.4 M
BRITT-RATHJENUNBRIDLED RESOURCES, LLC$17.1 M
BYRDPRESIDIO PETROLEUM LLC$17.1 M
ATHERTONUNBRIDLED RESOURCES, LLC$16.9 M
STILES 1FORMENTERA OPERATIONS LLC$16.9 M
JILL 54FORMENTERA OPERATIONS LLC$16.7 M
BRITT 43UNBRIDLED RESOURCES, LLC$16.7 M
CHAMP DAVISMUSTANG FUEL CORPORATION$16.7 M
TYLER 55FORMENTERA OPERATIONS LLC$16.7 M
BRITT RANCH E8PRESIDIO PETROLEUM LLC$16.7 M
D. BRITT 4PRESIDIO PETROLEUM LLC$16.6 M
DOBSON RANCH 1PRESIDIO PETROLEUM LLC$16.6 M
STILES 3FORMENTERA OPERATIONS LLC$16.4 M
STILES 18FORMENTERA OPERATIONS LLC$16.3 M
RUTH 2UNBRIDLED RESOURCES, LLC$16.3 M
DAVIS 3UNBRIDLED RESOURCES, LLC$16.3 M
HILLPRESIDIO PETROLEUM LLC$16.3 M
HAGERMANUNBRIDLED RESOURCES, LLC$16.3 M
HINK 3SLUNBRIDLED RESOURCES, LLC$16.2 M
STILES 3FORMENTERA OPERATIONS LLC$16.2 M
STILES 4FORMENTERA OPERATIONS LLC$16.2 M
DOBSON RANCH 2PRESIDIO PETROLEUM LLC$16.1 M
LISTERMMGL TXPH, LLC$16.0 M
STILES RANCH 5UNBRIDLED RESOURCES, LLC$15.9 M
BARTZ 19FORMENTERA OPERATIONS LLC$15.7 M
SANDRAFORMENTERA OPERATIONS LLC$15.6 M
BRITT 8PRESIDIO PETROLEUM LLC$15.5 M
DAVIS 65UNBRIDLED RESOURCES, LLC$15.5 M
THOMASUNBRIDLED RESOURCES, LLC$15.4 M
STILES 17FORMENTERA OPERATIONS LLC$15.4 M
STILES 18FORMENTERA OPERATIONS LLC$15.4 M
FRYE RANCHPRESIDIO PETROLEUM LLC$15.3 M
STILES RANCH 5UNBRIDLED RESOURCES, LLC$15.2 M
BRUMMETT 22AUNBRIDLED RESOURCES, LLC$15.2 M
D BRITT 4PRESIDIO PETROLEUM LLC$15.2 M
ARMSTRONGUNBRIDLED RESOURCES, LLC$15.2 M
SANDRAFORMENTERA OPERATIONS LLC$14.7 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$14.7 M
BURRELLPRESIDIO PETROLEUM LLC$14.6 M
FRYE RANCHPRESIDIO PETROLEUM LLC$14.5 M
BRYANT 21X40AUNBRIDLED RESOURCES, LLC$14.5 M
BYRDPRESIDIO PETROLEUM LLC$14.4 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$14.4 M
STILES 1FORMENTERA OPERATIONS LLC$14.3 M
STILES 68FORMENTERA OPERATIONS LLC$14.3 M
STILES RANCH 23UNBRIDLED RESOURCES, LLC$14.2 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$14.2 M
STILES 67UNBRIDLED RESOURCES, LLC$14.2 M
DAVIS 3MUSTANG FUEL CORPORATION$14.1 M
BRITTUNBRIDLED RESOURCES, LLC$14.1 M
STILES 68FORMENTERA OPERATIONS LLC$14.0 M
LEDBETTER 66UNBRIDLED RESOURCES, LLC$14.0 M
DOBSON RANCH 40UNBRIDLED RESOURCES, LLC$13.9 M
BRITTUNBRIDLED RESOURCES, LLC$13.8 M
STILES 3TAPSTONE ENERGY, LLC$13.8 M
D. BRITT 4PRESIDIO PETROLEUM LLC$13.7 M
STILES 17FORMENTERA OPERATIONS LLC$13.6 M
BRITT 7PRESIDIO PETROLEUM LLC$13.5 M
FRYEPRESIDIO PETROLEUM LLC$13.5 M
CALCOTE 63FORMENTERA OPERATIONS LLC$13.4 M
LISTERMMGL TXPH, LLC$13.4 M
BRITTUNBRIDLED RESOURCES, LLC$13.4 M
STILES 3FORMENTERA OPERATIONS LLC$13.4 M
STILES 68FORMENTERA OPERATIONS LLC$13.3 M
STILES 3FORMENTERA OPERATIONS LLC$13.1 M
RUTH 2UNBRIDLED RESOURCES, LLC$13.0 M
MCCOY 27PRESIDIO PETROLEUM LLC$13.0 M
ATHERTON 69UNBRIDLED RESOURCES, LLC$12.9 M
HUNTER 30PRESIDIO PETROLEUM LLC$12.9 M
STILES 68TAPSTONE ENERGY, LLC$12.8 M
BRITT 43UNBRIDLED RESOURCES, LLC$12.7 M
THOMASUNBRIDLED RESOURCES, LLC$12.7 M
STILES 68TAPSTONE ENERGY, LLC$12.6 M
WILLIAMS 33PRESIDIO PETROLEUM LLC$12.6 M
REED 70UNBRIDLED RESOURCES, LLC$12.6 M
STILES 1FORMENTERA OPERATIONS LLC$12.6 M
STILES 67UNBRIDLED RESOURCES, LLC$12.6 M
LUKERUNBRIDLED RESOURCES, LLC$12.6 M
MILLER SPINNEY 39UNBRIDLED RESOURCES, LLC$12.6 M
HUFF RANCH 48PRESIDIO PETROLEUM LLC$12.5 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$12.5 M
THOMASUNBRIDLED RESOURCES, LLC$12.5 M
STILES 68FORMENTERA OPERATIONS LLC$12.5 M
MOORE 62FORMENTERA OPERATIONS LLC$12.5 M
STILES 16FORMENTERA OPERATIONS LLC$12.4 M
ARMSTRONGUNBRIDLED RESOURCES, LLC$12.4 M
DAVISPRESIDIO PETROLEUM LLC$12.3 M
BRITTUNBRIDLED RESOURCES, LLC$12.3 M
IVESTOR 57MMGL TXPH, LLC$12.3 M
BRITT RANCH UNITPRESIDIO PETROLEUM LLC$12.3 M

Field number 86125250, from the Railroad Commission's field register. The register's own index resolves 906 leases and 906 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.