LEASES · O-13-31699 · OIL · DISTRICT 09
Big Mineral Creek (UV Sand) Unit
ReportingFlintlock Exploration, LLC · Grayson County · Big Mineral Creek (UV Sand Unit) field
Big Mineral Creek (UV Sand) Unit is an RRC oil lease (O-13-31699) in Grayson County operated by Flintlock Exploration, LLC, with 31 wells completed on it.
It has reported 548K barrels of oil and 1.7M mcf of gas since September 2010, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 20.6K barrels of oil, down 34% on the year before; the lease peaked at 7.34K barrels in December 2018.
3 operators have filed production on it, most recently Flintlock Exploration, LLC since September 2025.
- 548K
- bbl oil, all reported
- 1.7M
- mcf gas incl. casinghead
- 20.6K
- bbl oil, last 12 reported
- -34%
- vs the 12 before
- 31
- wells completed on it
- 7.34K
- peak month, bbl (Dec 2018)
PDQ LEASE REPORTS · FIRST SEP 2010 · 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 20,601 · prior 12 31,155(-34%)
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 41,733 · prior 12 75,187(-44%)
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.
- Blackwell BMC, LLCSep 2010 → May 2011 · 9 mo
- Jetta Operating Company, Inc.Jun 2011 → Aug 2025 · 171 mo
- Flintlock Exploration, LLCSep 2025 → Jul 2026 · 11 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
31
wells completed on the lease
- Producing
- 12
- Injection
- 7
- Shut In
- 6
- Plugged
- 4
- Not on Schedule
- 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.
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