LEASES · O-10-51839 · OIL · DISTRICT 08
Cass-Ernest E20O
ReportingPioneer Natural Res. USA, Inc. · Midland County · Spraberry (Trend Area) field
Cass-Ernest E20o is an RRC oil lease (O-10-51839) in Midland County operated by Pioneer Natural Res. USA, Inc., with one well completed on it.
It has reported 355K barrels of oil and 1.06M mcf of gas since February 2019, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 15.3K barrels of oil in the 12 months through April 2026, down 38% on the year before; the lease peaked at 26.8K barrels in March 2019.
- 355K
- bbl oil, all reported
- 1.06M
- mcf gas incl. casinghead
- 15.3K
- bbl oil, 12 months through Apr 2026
- -38%
- vs the 12 before
- 1
- wells completed on it
- 26.8K
- peak month, bbl (Mar 2019)
PDQ LEASE REPORTS · FIRST FEB 2019 · 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 15,276 · prior 12 24,793(-38%)
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 219,405 · prior 12 129,061(+70%)
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.Feb 2019 → Jul 2026 · 90 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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