LEASES · O-9-19118 · OIL · DISTRICT 7C
Bast 33-40
Pioneer Natural Res. USA, Inc. · Reagan County · Spraberry (Trend Area) R 40 Exc field
Bast 33-40 is an RRC oil lease (O-9-19118) in Reagan County operated by Pioneer Natural Res. USA, Inc., with one well completed on it.
It has reported 434K barrels of oil and 1.72M mcf of gas since July 2015, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 4.6K barrels of oil in the 12 months through April 2026, down 41% on the year before; the lease peaked at 29.4K barrels in August 2015.
2 operators have filed production on it, most recently Pioneer Natural Res. USA, Inc. since February 2021.
- 434K
- bbl oil, all reported
- 1.72M
- mcf gas incl. casinghead
- 4.6K
- bbl oil, 12 months through Apr 2026
- -41%
- vs the 12 before
- 1
- wells completed on it
- 29.4K
- peak month, bbl (Aug 2015)
PDQ LEASE REPORTS · FIRST JUL 2015 · 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 4,603 · prior 12 7,749(-41%)
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 180,819 · prior 12 117,178(+54%)
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.
- Parsley Energy Operations, LLCJul 2015 → Jan 2021 · 67 mo396K bbl oil · 1.21M mcf gas
- Pioneer Natural Res. USA, Inc.Feb 2021 → Jul 2026 · 66 mo38.1K bbl oil · 514K 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 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-9-19118, documented in the API reference.