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KEYSTONE (WOLFCAMP), District 08, 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
36
with a page here
Operators
2
Value, all time
$983.1 M
95% of the register's 38
Discovered
1966-11-16
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 36 leases in this field that have a page here — 95% of the register's 38 — 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
Oil65612,140,261 bbl2,617,159 mcfcasinghead12,969,207 bblsince discovery
Gas000 mcf0 bblcondensate0 mcfsince 1970

The discovery well's oil measured 39.1° API gravity, perforated at 7,068 ft.

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
GasB2025-03-26330 ft0 ft400 ft
GasO2025-03-26330 ft0 ft1099,999 ft
OilB2025-03-26330 ft0 ft4099,999 ft
OilO2025-03-26330 ft0 ft1099,999 ft

Commission remarks: & SWR13(B)(4)(A).

County

Winkler County

Leases in this field

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

LeaseOperatorValue
COPBOYD & MCWILLIAMS OPERATING, LLC$271.0 M
ALLYFORMENTERA OPERATIONS LLC$93.2 M
WHITING 21FORMENTERA OPERATIONS LLC$58.0 M
WHITING 28FORMENTERA OPERATIONS LLC$39.4 M
ALLY 26FORMENTERA OPERATIONS LLC$38.6 M
COACHWHIP 25FORMENTERA OPERATIONS LLC$37.3 M
RUST 24FORMENTERA OPERATIONS LLC$36.1 M
DUDLEY 10BOYD & MCWILLIAMS OPERATING, LLC$35.6 M
WHITING 22FORMENTERA OPERATIONS LLC$31.1 M
FERNANDES GLO 18FORMENTERA OPERATIONS LLC$25.3 M
CAMPBELLFORMENTERA OPERATIONS LLC$25.2 M
DUNESFORMENTERA OPERATIONS LLC$25.2 M
V-BAR 15FORMENTERA OPERATIONS LLC$22.4 M
STONEGATE 15FORMENTERA OPERATIONS LLC$20.0 M
WHITING 10FORMENTERA OPERATIONS LLC$18.6 M
SEGUNDOFORMENTERA OPERATIONS LLC$16.9 M
WADDELL DUNES 8FORMENTERA OPERATIONS LLC$16.6 M
TATER TOTBOYD & MCWILLIAMS OPERATING, LLC$15.5 M
WHITING 8FORMENTERA OPERATIONS LLC$14.5 M
STONEGATE 6FORMENTERA OPERATIONS LLC$13.9 M
V BAR 10FORMENTERA OPERATIONS LLC$13.4 M
STONEGATE 152FORMENTERA OPERATIONS LLC$12.9 M
CAMPBELL GLO 21FORMENTERA OPERATIONS LLC$12.3 M
B.F. KENNEDY 23BOYD & MCWILLIAMS OPERATING, LLC$11.7 M
PENELOPE 10BOYD & MCWILLIAMS OPERATING, LLC$10.4 M
STONEGATE 14FORMENTERA OPERATIONS LLC$10.2 M
TERCEROFORMENTERA OPERATIONS LLC$9.4 M
WHITING 9FORMENTERA OPERATIONS LLC$8.3 M
ANADARKO 14FORMENTERA OPERATIONS LLC$7.0 M
STONEGATE 1724FORMENTERA OPERATIONS LLC$6.9 M
WHIPLASHBOYD & MCWILLIAMS OPERATING, LLC$6.2 M
DORIGHTBOYD & MCWILLIAMS OPERATING, LLC$4.5 M
WHITING NORTH 26FORMENTERA OPERATIONS LLC$4.5 M
WADDELL 5FORMENTERA OPERATIONS LLC$3.9 M
ANADARKO 11FORMENTERA OPERATIONS LLC$3.6 M
PRIMEROFORMENTERA OPERATIONS LLC$3.5 M

Field number 49129858, from the Railroad Commission's field register. The register's own index resolves 38 leases and 68 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.