LEASES · O-10-23961 · OIL · DISTRICT 08
Cowden 40 -B-
Pioneer Natural Res. USA, Inc. · Midland County · Spraberry (Trend Area) field
Cowden 40 -B- is an RRC oil lease (O-10-23961) in Midland County operated by Pioneer Natural Res. USA, Inc., with 6 wells completed on it.
It has reported 493K barrels of oil and 5.7M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 1.63K barrels of oil in the 12 months through April 2026, down 84% on the year before; the lease peaked at 7.68K barrels in August 2014.
5 operators have filed production on it, most recently Pioneer Natural Res. USA, Inc. since June 2006.
- 493K
- bbl oil, all reported
- 5.7M
- mcf gas incl. casinghead
- 1.63K
- bbl oil, 12 months through Apr 2026
- -84%
- vs the 12 before
- 6
- wells completed on it
- 7.68K
- peak month, bbl (Aug 2014)
PDQ LEASE REPORTS · FIRST JAN 1993 · 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.
12 months through Apr 2026 1,626 · prior 12 10,303(-84%)
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.
12 months through Apr 2026 4,508 · prior 12 214,127(-98%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 114 reporting months of oil since the peak in May 2016. 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.
- 22%
- first-year decline from the peak (nominal Di 25%)
- 0.0
- b factor (exponential)
- 0.91
- fit R²
- 20.6K
- 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 1,626 · prior 12 10,303(-84%)
Fitted exponential curve from the May 2016 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 373 | 330 | 292 | 258 |
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.
- Plains Petroleum Operating Co.Jan 1993 → Sep 1993 · 9 mo
- Midkiff, JohnOct 1993 → Sep 2004 · 132 mo
- Quay Valley, Inc.Oct 2004 → Apr 2006 · 19 mo
- Big Star Oil & Gas, LLCMay 2006 → May 2006 · 1 mo
- Pioneer Natural Res. USA, Inc.Jun 2006 → Jul 2026 · 242 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
6
wells completed on the lease
- Plugged
- 4
- Shut In
- 1
- Producing
- 1
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.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-23961, documented in the API reference.