LEASES · O-8-29973 · OIL · DISTRICT 7B
Stasney's Cook Ranch "57"
ReportingStasney Well Service, LLC · Shackelford County · Shackelford County Regular field
Stasney'S Cook Ranch "57" is an RRC oil lease (O-8-29973) in Shackelford County operated by Stasney Well Service, LLC, with 19 wells completed on it.
It has reported 44.9K barrels of oil since August 2007, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 295 barrels of oil, down 19% on the year before; the lease peaked at 1.32K barrels in March 2011.
2 operators have filed production on it, most recently Stasney Well Service, LLC since August 2010.
- 44.9K
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 295
- bbl oil, last 12 reported
- -19%
- vs the 12 before
- 19
- wells completed on it
- 1.32K
- peak month, bbl (Mar 2011)
PDQ LEASE REPORTS · FIRST AUG 2007 · 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 295 · prior 12 362(-19%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 96 reporting months of oil since the peak in Mar 2018. 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.
- 45%
- first-year decline from the peak (nominal Di 67%)
- 0.4
- b factor (hyperbolic)
- 0.84
- fit R²
- 1.48K
- 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 295 · prior 12 362(-19%)
Fitted hyperbolic curve from the Mar 2018 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 17 | 15 | 14 | 13 |
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.
- Stasney, H. R. & Sons, Ltd.Aug 2007 → Jul 2010 · 36 mo
- Stasney Well Service, LLCAug 2010 → Jul 2026 · 192 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
19
wells completed on the lease
- Producing
- 10
- Plugged
- 7
- Injection
- 2
Operates them now
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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