LEASES · O-9-21959 · OIL · DISTRICT 7C
Brook D-SW4F
ReportingPioneer Natural Res. USA, Inc. · Upton County · Spraberry (Trend Area) R 40 Exc field
Brook D-Sw4f is an RRC oil lease (O-9-21959) in Upton County operated by Pioneer Natural Res. USA, Inc., with one well completed on it.
It has reported 290K barrels of oil and 917K mcf of gas since September 2022, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 34.1K barrels of oil, down 18% on the year before; the lease peaked at 28.8K barrels in January 2023.
- 290K
- bbl oil, all reported
- 917K
- mcf gas incl. casinghead
- 34.1K
- bbl oil, last 12 reported
- -18%
- vs the 12 before
- 1
- wells completed on it
- 28.8K
- peak month, bbl (Jan 2023)
PDQ LEASE REPORTS · FIRST SEP 2022 · 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 34,081 · prior 12 41,352(-18%)
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 184,047 · prior 12 191,684(-4%)
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.
- Pioneer Natural Res. USA, Inc.Sep 2022 → Jul 2026 · 47 mo
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 Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
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