COBRA (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
69
with a page here
Operators
16
Value, all time
$928.0 M
88% of the register's 78
Discovered
1984-06-20
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 69 leases in this field that have a page here — 88% of the register's 78 — 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
Oil200 bbl0 mcfcasinghead22,132,757 bblsince discovery
Gas000 mcf0 bblcondensate140,693 mcfsince 1970

This field filed no production for 2025. It remains on the Commission's schedules.

The discovery well's oil measured 43.2° API gravity, perforated at 7,947 ft.

Hydrogen sulphide

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
GasB1985-03-01467 ft1,200 ft1604,500 ft
GasO1985-03-01467 ft1,200 ft803,250 ft
OilB1985-03-01467 ft1,200 ft1604,500 ft
OilO1985-03-01467 ft1,200 ft803,250 ft

Commission remarks: FIELD CHANGED FROM ONE WELL TO PRORATED 04/29/2017

County

Leases in this field

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

LeaseOperatorValue
HILGER-KOLB UNITCOBRA OIL & GAS CORPORATION$328.0 M
POWELL "11A"OXY USA INC.$63.0 M
POWELL "11F"OXY USA INC.$54.4 M
BRUNSON "19A"DE3 OPERATING LLC$43.0 M
POWELL -4- AOXY USA INC.$42.6 M
CALVERLEYFED OPERATING LLC$38.7 M
POWELL "8"OXY USA INC.$31.8 M
POWELL 11AOXY USA INC.$27.6 M
COOPERMDC OPERATING, INC.$17.2 M
HILLGER, BERTHA "A"FED OPERATING LLC$16.3 M
POWELL "4"OXY USA INC.$16.1 M
9204 JV-P WHITPARSLEY ENERGY OPERATIONS, LLC$15.8 M
POWELL "9E"OXY USA INC.$14.3 M
POWELL "4C"OXY USA INC.$12.9 M
KOLB 12COBRA OIL & GAS CORPORATION$12.1 M
9204 JV-P WHIT -C-PARSLEY ENERGY OPERATIONS, LLC$11.6 M
POWELL "16"OXY USA INC.$10.4 M
POWELL "20"OXY USA INC.$10.1 M
POWELL "11"OXY USA INC.$8.4 M
POWELL "17F"OXY USA INC.$8.2 M
7904 JV-P HILLGER "D"FED OPERATING LLC$7.7 M
POWELL "5B"OXY USA INC.$7.1 M
COOPER "301" LEASEMDC OPERATING, INC.$7.1 M
POWELL "15F"OXY USA INC.$6.9 M
POWELL, E. L.PARSLEY ENERGY OPERATIONS, LLC$6.8 M
COOPERMDC OPERATING, INC.$6.5 M
POWELL "21B"OXY USA INC.$6.2 M
POWELL "21D"RANGE PRODUCTION COMPANY$6.1 M
POWELL "2"VANGUARD OPERATING, LLC$6.1 M
POWELL "4B"OXY USA INC.$6.0 M
COOPER "B" 35OXY USA INC.$5.7 M
POWELL "15B"VANGUARD OPERATING, LLC$5.7 M
POWELL "B"MDC OPERATING, INC.$5.6 M
POWELLFED OPERATING LLC$5.5 M
POWELL "2B"OXY USA INC.$5.4 M
POWELL "20C"OXY USA INC.$5.2 M
POWELL "A" 1MDC OPERATING, INC.$5.2 M
POWELL 15GOXY USA INC.$3.8 M
BRUNSON "5"OWL OPS LLC$3.6 M
POWELL "20A"OXY USA INC.$3.4 M
7904 JV-P HILLGER 2AFED OPERATING LLC$3.1 M
8204 JV-P ELMERBTA OIL PRODUCERS$2.9 M
MCDOWELL ESTATEOCCIDENTAL PERMIAN LTD.$2.8 M
BECKNELL "A"DYAD PETROLEUM COMPANY$2.6 M
HILLGER, ALTONFED OPERATING LLC$2.4 M
HILLGER "B"DYAD PETROLEUM COMPANY$2.2 M
8204 JV-P ELMERBTA OIL PRODUCERS$2.1 M
9204 JV-P BURNSTEDTBTA OIL PRODUCERS$2.0 M
POWELL "21A"OXY USA INC.$1.7 M
COOPER 301MDC OPERATING, INC.$1.7 M
POWELL "2"TREND EXPLORATION COMPANY$1.7 M
POWELL "2D"OXY USA INC.$1.2 M
WESTERN COOPERLADD OIL & GAS CORPORATION$841 k
BRUNSON "19"`RANGE PRODUCTION COMPANY$592 k
LITTLE WHITWESTERN RESERVES OIL COMPANY INC$443 k
POWELL "15E"OXY USA INC.$406 k
MCDOWELL ESTATEOCCIDENTAL PERMIAN LTD.$360 k
POWELL "17"OXY USA INC.$190 k
9204 JV-P WHIT -B-BTA OIL PRODUCERS$169 k
CALVERLEY 24FED OPERATING LLC$158 k
COOPER 35DISCOVERY OPERATING, INC.$49 k
CALVERELY 14-AFED OPERATING LLC$44 k
HOUSTON "22"TREND EXPLORATION COMPANY$30 k
POWELL "17"TREND EXPLORATION COMPANY$25 k
POWELL "9C"TREND EXPLORATION COMPANY$19 k
COOPER 35RANGE PRODUCTION COMPANY$15 k
POWELL "15A"TREND EXPLORATION COMPANY$4 k
COOPER 3MDC OPERATING, INC.$3 k
POWELL "2"OXY USA INC.

Field number 19235700, from the Railroad Commission's field register. The register's own index resolves 78 leases and 89 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.