LEASES · G-9-281334 · GAS · DISTRICT 7C
University 55-21
ReportingZarvona Energy LLC · Schleicher County · Holt Ranch (Consolidated) field
University 55-21 is an RRC gas lease (G-9-281334) in Schleicher County operated by Zarvona Energy LLC, with one well completed on it.
It has reported 15.7K mcf of gas since June 2016, last reporting volume in February 2026 (statewide data runs through April 2026).
The last 12 reported months total 524 mcf of gas.
2 operators have filed production on it, most recently Zarvona Energy LLC since October 2020.
- 15.7K
- mcf gas, all reported
- 0
- bbl condensate and oil
- 524
- mcf gas, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · FIRST JUN 2016 · LAST VOLUME FEB 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 524 · prior 12 693(-24%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 115 reporting months of gas since the peak in Aug 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.
- 20%
- first-year decline from the peak (nominal Di 22%)
- 0.0
- b factor (exponential)
- 0.86
- fit R²
- 1.97K
- 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 524 · prior 12 693(-24%)
Fitted exponential curve from the Aug 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 | 33 | 30 | 26 | 24 |
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.
- Approach Operating LLCJun 2016 → Sep 2020 · 52 mo
- Zarvona Energy LLCOct 2020 → Jul 2026 · 70 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-9-281334, documented in the API reference.