LEASES · O-6-16135 · OIL · DISTRICT 06
Whelan OU4
ReportingTanos Exploration IV, LLC · Harrison County · Whelan (Pettit) field
Whelan Ou4 is an RRC oil lease (O-6-16135) in Harrison County operated by Tanos Exploration IV, LLC, with one well completed on it.
It has reported 38.8K barrels of oil and 58K mcf of gas since June 2025, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 38.8K barrels of oil; the lease peaked at 6.63K barrels in June 2025.
- 38.8K
- bbl oil, all reported
- 58K
- mcf gas incl. casinghead
- 38.8K
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 6.63K
- peak month, bbl (Jun 2025)
PDQ LEASE REPORTS · FIRST JUN 2025 · LAST VOLUME MAR 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 38,759
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 58,033
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.
- Tanos Exploration IV, LLCJun 2025 → Jul 2026 · 14 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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