LEASES · O-10-51907 · OIL · DISTRICT 08

Cooper 27-26 North Unit

Reporting

Permian Resources Operating, LLC · Reeves County · Wolfbone (Trend Area) field

Cooper 27-26 North Unit is an RRC oil lease (O-10-51907) in Reeves County operated by Permian Resources Operating, LLC, with 4 wells completed on it.

It has reported 1.9M barrels of oil and 3.78M mcf of gas since February 2019, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 49.1K barrels of oil, down 45% on the year before; the lease peaked at 201K barrels in March 2019.

2 operators have filed production on it, most recently Permian Resources Operating, LLC since November 2024.

1.9M
bbl oil, all reported
3.78M
mcf gas incl. casinghead
49.1K
bbl oil, last 12 reported
-45%
vs the 12 before
4
wells completed on it
201K
peak month, bbl (Mar 2019)

PDQ LEASE REPORTS · FIRST FEB 2019 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026

Oil by month

Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.

Last 12 months 49,103 · prior 12 89,234(-45%)

0100K200K300K2020202120222023202420252026

Gas by month

Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.

Last 12 months 188,024 · prior 12 207,006(-9%)

0200K400K2020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps hyperbolic curve fitted to the 86 reporting months of oil since the peak in Mar 2019. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.

79%
first-year decline from the peak (nominal Di 307%)
0.8
b factor (hyperbolic)
0.95
fit R²
604K
bbl remaining on the curve, to 1 per month

Oil, barrels reported months since the peak, with the fitted curve and its projection

Last 12 months 49,103 · prior 12 89,234(-45%)

0100K200K300K202020212022202320242025202620272028

Fitted hyperbolic curve from the Mar 2019 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month3,8803,5963,3483,129

Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. OXY USA WTP LPFeb 2019 → Oct 2024 · 69 mo
  2. Permian Resources Operating, LLCNov 2024 → Jul 2026 · 21 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

4

wells completed on the lease

Producing
4

Newest permits

All 4 wells, searchable →

About this data

Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.

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