LEASES · G-1-258378 · GAS · DISTRICT 01
Mayer Edwin S Jr 27
ReportingUpp Operating, LLC · Schleicher County · Kelley (Ellenburger) field
Mayer Edwin S JR 27 is an RRC gas lease (G-1-258378) in Schleicher County operated by Upp Operating, LLC, with one well completed on it.
It has reported 1.18M mcf of gas since August 2010, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 14.9K mcf of gas.
3 operators have filed production on it, most recently Upp Operating, LLC since April 2019.
- 1.18M
- mcf gas, all reported
- 0
- bbl condensate and oil
- 14.9K
- mcf gas, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · FIRST AUG 2010 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
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 14,855 · prior 12 15,769(-6%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 120 reporting months of gas since the peak in May 2016. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.
- 18%
- first-year decline from the peak (nominal Di 21%)
- 0.7
- b factor (hyperbolic)
- 0.95
- fit R²
- 244K
- mcf remaining on the curve, to 1 per month
Gas, mcf reported months since the peak, with the fitted curve and its projection
Last 12 months 14,855 · prior 12 15,769(-6%)
Fitted hyperbolic curve from the May 2016 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, mcf per month | 1,115 | 1,070 | 1,029 | 990 |
Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →
Who reported it
Each run of months one operator filed the production report, oldest first.
- Highmount Expl & Prod Texas LLCAug 2010 → Sep 2014 · 50 mo
- Enervest Operating, L.L.C.Oct 2014 → Mar 2019 · 54 mo
- Upp Operating, LLCApr 2019 → Jul 2026 · 88 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/g-1-258378, documented in the API reference.