LEASES · O-13-33299 · OIL · DISTRICT 09
William
ReportingTatanka Operating, LLC · Grayson County · Big Mineral Creek (Viola) field
William is an RRC oil lease (O-13-33299) in Grayson County operated by Tatanka Operating, LLC, with one well completed on it.
It has reported 113K barrels of oil and 276K mcf of gas since August 2015, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 2.78K barrels of oil, down 6% on the year before; the lease peaked at 15K barrels in August 2015.
2 operators have filed production on it, most recently Tatanka Operating, LLC since April 2018.
- 113K
- bbl oil, all reported
- 276K
- mcf gas incl. casinghead
- 2.78K
- bbl oil, last 12 reported
- -6%
- vs the 12 before
- 1
- wells completed on it
- 15K
- peak month, bbl (Aug 2015)
PDQ LEASE REPORTS · FIRST AUG 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.
Last 12 months 2,778 · prior 12 2,959(-6%)
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 11,242 · prior 12 13,756(-18%)
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.
- Payson Operating, LLCAug 2015 → Mar 2018 · 32 mo
- Tatanka Operating, LLCApr 2018 → Jul 2026 · 100 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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