COMANCHE-HALSELL (6500), District 01, 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
37
with a page here
Operators
7
Value, all time
$655.8 M
79% of the register's 47
Discovered
2002-02-01
Oil

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 37 leases in this field that have a page here — 79% of the register's 47 — 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
Oil504170,081 bbl0 mcfcasinghead10,198,393 bblsince discovery

The discovery well's oil measured 42.0° API gravity, perforated at 6,731 ft.

Hydrogen sulphide

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
OilB2020-06-16330 ft0 ft402,100 ft
OilO2020-06-16330 ft0 ft201,500 ft

Commission remarks: TOP ALLOWABLE 800 BBLS PER DAY, EFFECTIVE 06-16-20

County

Leases in this field

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

LeaseOperatorValue
COMANCHE RANCHCMR ENERGY, L.P.$301.3 M
CAGE RANCHTXCO RESOURCES INC.$82.1 M
CAGE RANCHEL TORO RESOURCES LLC$71.7 M
CAGE-BRISCOE CEL TORO RESOURCES LLC$45.0 M
CAGE-BRISCOE B145 UNITEL TORO RESOURCES LLC$28.4 M
CAGE-BRISCOE BEL TORO RESOURCES LLC$22.9 M
FELPSRIO-TEX, INC.$15.3 M
CAGE-BRISCOE C 259H UNITEL TORO RESOURCES LLC$12.7 M
CAGE-BRISCOE B 146 UNITNEWFIELD EXPLORATION COMPANY$7.9 M
CAGE-BRISCOE "B" 337H UNITEL TORO RESOURCES LLC$7.8 M
CAGE MINERALS LTD. ET ALCMR ENERGY, L.P.$6.0 M
CHICON CREEKRIO-TEX, INC.$4.9 M
CAGE-BRISCOE B 154H UNITNEWFIELD EXPLORATION COMPANY$4.8 M
CAGE-BRISCOE B244 UNITNEWFIELD EXPLORATION COMPANY$4.5 M
CAGE-KIRK B21EL TORO RESOURCES LLC$3.8 M
CAGE-BRISCOE B 128H UNITEL TORO RESOURCES LLC$3.7 M
CAGE-BRISCOE ATXCO RESOURCES INC.$3.2 M
CRCML EXPLORATION, LLC$3.1 M
CAGE RANCH "G" UNITCMR ENERGY, L.P.$3.1 M
CAGE-BRISCOE B 537 UNITNEWFIELD EXPLORATION COMPANY$2.8 M
CAGE-BRISCOE B 545H UNITEL TORO RESOURCES LLC$2.6 M
CAGE-BRISCOE B 144H UNITNEWFIELD EXPLORATION COMPANY$2.6 M
CAGE-BRISCOE B245 UNITNEWFIELD EXPLORATION COMPANY$2.5 M
CAGE-KIRK A 1-5H UNITNEWFIELD EXPLORATION COMPANY$2.0 M
CAGE-BRISCOE B 138H UNITEL TORO RESOURCES LLC$2.0 M
CAGE-WEST B 136H UNITNEWFIELD EXPLORATION COMPANY$1.9 M
CAGE-WEST A 134H UNITNEWFIELD EXPLORATION COMPANY$1.7 M
CAGE-BRISCOE B 338H UNITNEWFIELD EXPLORATION COMPANY$1.6 M
CINCO RANCHSAXET PETROLEUM, INC.$1.1 M
CAGE-WEST BTXCO RESOURCES INC.$560 k
CAGE-BRISCOE B 425 UNITTXCO RESOURCES INC.$447 k
CAGE-WEST BEL TORO RESOURCES LLC$420 k
CAGE-BRISCOE B 446H UNITNEWFIELD EXPLORATION COMPANY$385 k
CAGE-BRISCOE B 525 UNITTXCO RESOURCES INC.$346 k
CAGE-WEST "B" 437H UNITNEWFIELD EXPLORATION COMPANY$229 k
CAGE-BRISCOE A 120H UNITTXCO RESOURCES INC.$145 k
CAGE-BRISCOE A 119H UNITNEWFIELD EXPLORATION COMPANY$129 k

Field number 19890750, from the Railroad Commission's field register. The register's own index resolves 47 leases and 159 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.