LEASES · O-13-21222 · OIL · DISTRICT 09
Mayo, Joe Unit #1
ReportingCobra Oil & Gas Corporation · Clay County · Joy, N.W. (Marble Falls) field
Mayo, Joe Unit #1 is an RRC oil lease (O-13-21222) in Clay County operated by Cobra Oil & Gas Corporation, with one well completed on it.
It has reported 99.2K barrels of oil and 37.7K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 2.29K barrels of oil, up 8% on the year before; the lease peaked at 622 barrels in December 1994.
2 operators have filed production on it, most recently Cobra Oil & Gas Corporation since March 2019.
- 99.2K
- bbl oil, all reported
- 37.7K
- mcf gas incl. casinghead
- 2.29K
- bbl oil, last 12 reported
- +8%
- vs the 12 before
- 1
- wells completed on it
- 622
- peak month, bbl (Dec 1994)
PDQ LEASE REPORTS · FIRST JAN 1993 · 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 2,286 · prior 12 2,119(+8%)
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 558 · prior 12 533(+5%)
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.
- Spragins, EdJan 1993 → Feb 2019 · 314 mo
- Cobra Oil & Gas CorporationMar 2019 → Jul 2026 · 89 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-13-21222, documented in the API reference.