LEASES · O-9-4088 · OIL · DISTRICT 7C
Pembrook Unit
ReportingPioneer Natural Res. USA, Inc. · Upton County · Spraberry (Trend Area) field
Pembrook Unit is an RRC oil lease (O-9-4088) in Upton County operated by Pioneer Natural Res. USA, Inc., with 333 wells completed on it.
It has reported 21.3M barrels of oil and 41.5M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 1.41M barrels of oil, up 87% on the year before; the lease peaked at 217K barrels in August 2021.
3 operators have filed production on it, most recently Pioneer Natural Res. USA, Inc. since August 2005.
- 21.3M
- bbl oil, all reported
- 41.5M
- mcf gas incl. casinghead
- 1.41M
- bbl oil, last 12 reported
- +87%
- vs the 12 before
- 333
- wells completed on it
- 217K
- peak month, bbl (Aug 2021)
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.
Last 12 months 1,411,130 · prior 12 756,213(+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.
Last 12 months 3,512,715 · prior 12 2,929,097(+20%)
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.
- Exxon Corp.Jan 1993 → Mar 2000 · 87 mo
- Exxon Mobil CorporationApr 2000 → Jul 2005 · 64 mo
- Pioneer Natural Res. USA, Inc.Aug 2005 → Jul 2026 · 252 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
333
wells completed on the lease
- Plugged
- 223
- Shut IN
- 51
- Producing
- 34
- NO Type on File
- 20
- Injection
- 5
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-9-4088, documented in the API reference.