LEASES · O-10-57620 · OIL · DISTRICT 08
Mason Heirs
ReportingCoastal Plains Energy, Inc. · Dawson County · Spraberry (Trend Area) field
Mason Heirs is an RRC oil lease (O-10-57620) in Dawson County operated by Coastal Plains Energy, Inc., with one well completed on it.
It has reported 3.8K barrels of oil since July 2022, last reporting volume in October 2025 (statewide data runs through April 2026).
The last 12 reported months total 240 barrels of oil, down 80% on the year before; the lease peaked at 203 barrels in January 2024.
- 3.8K
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 240
- bbl oil, last 12 reported
- -80%
- vs the 12 before
- 1
- wells completed on it
- 203
- peak month, bbl (Jan 2024)
PDQ LEASE REPORTS · FIRST JUL 2022 · LAST VOLUME OCT 2025 · 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 240 · prior 12 1,219(-80%)
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.
- Coastal Plains Energy, Inc.Jul 2022 → Jul 2026 · 49 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.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-57620, documented in the API reference.