LEASES · O-9-23547 · OIL · DISTRICT 7C
Big Bertha 0310 F
ReportingFirebird Energy II LLC · Upton County · Spraberry (Trend Area) field
Big Bertha 0310 F is an RRC oil lease (O-9-23547) in Upton County operated by Firebird Energy II LLC, with 2 wells completed on it.
It has reported 77.4K barrels of oil and 113K mcf of gas since January 2026, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 77.4K barrels of oil; the lease peaked at 31K barrels in April 2026.
- 77.4K
- bbl oil, all reported
- 113K
- mcf gas incl. casinghead
- 77.4K
- bbl oil, last 12 reported
- —
- vs the 12 before
- 2
- wells completed on it
- 31K
- peak month, bbl (Apr 2026)
PDQ LEASE REPORTS · FIRST JAN 2026 · 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 77,428
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 113,070
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.
- Firebird Energy II LLCJan 2026 → Jul 2026 · 7 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Producing
- 1
- Shut IN
- 1
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-9-23547, documented in the API reference.