LEASES · O-10-47471 · OIL · DISTRICT 08
Windowpane 4
Diamondback E&P LLC · Midland County · Spraberry (Trend Area) field
Windowpane 4 is an RRC oil lease (O-10-47471) in Midland County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 72K barrels of oil and 139K mcf of gas since February 2016, last reporting volume in December 2025 (statewide data runs through August 2026).
It reported 270 barrels of oil in the 12 months through August 2026, down 87% on the year before; the lease peaked at 2.78K barrels in May 2016.
2 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 72K
- bbl oil, all reported
- 139K
- mcf gas incl. casinghead
- 270
- bbl oil, 12 months through Aug 2026
- -87%
- vs the 12 before
- 1
- wells completed on it
- 2.78K
- peak month, bbl (May 2016)
PDQ LEASE REPORTS · FIRST FEB 2016 · LAST VOLUME DEC 2025 · STATEWIDE DATA THROUGH AUG 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 Aug 2026 270 · prior 12 2,051(-87%)
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 Aug 2026 2,731 · prior 12 14,627(-81%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first, with what it reported in them.
- Endeavor Energy Resources L.P.Feb 2016 → Dec 2024 · 107 mo70.5K bbl oil · 126K mcf gas
- Diamondback E&P LLCJan 2025 → Nov 2026 · 23 mo1.58K bbl oil · 12.4K mcf gas
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
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 Aug 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-10-47471, documented in the API reference.