LEASES · O-1-7329 · OIL · DISTRICT 01
Mauerman
ReportingSouth Sam Operating Company, LLC · Bexar County · Monksfield (350 Sand) field
Mauerman is an RRC oil lease (O-1-7329) in Bexar County operated by South Sam Operating Company, LLC, with 226 wells completed on it.
It has reported 109K barrels of oil and 143 mcf of gas since January 1993, last reporting volume in August 2025 (statewide data runs through April 2026).
The last 12 reported months total 4 barrels of oil; the lease peaked at 932 barrels in June 1993.
4 operators have filed production on it, most recently South Sam Operating Company, LLC since August 2011.
- 109K
- bbl oil, all reported
- 143
- mcf gas incl. casinghead
- 4
- bbl oil, last 12 reported
- —
- vs the 12 before
- 226
- wells completed on it
- 932
- peak month, bbl (Jun 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME AUG 2025 · 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 4 · prior 12 14(-71%)
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 0 · prior 12 0
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 77 reporting months of oil since the peak in Feb 2019. 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.
- 57%
- first-year decline from the peak (nominal Di 85%)
- 0.0
- b factor (exponential)
- 0.80
- fit R²
- 0
- bbl remaining on the curve, to 1 per month
Oil, barrels reported months since the peak, with the fitted curve and its projection
Last 12 months 4 · prior 12 14(-71%)
Fitted exponential curve from the Feb 2019 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 0 | 0 | 0 | 0 |
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.
- Caspen Operating CompanyJan 1993 → Mar 1993 · 3 mo
- South Loop Operating, L.C.Apr 1993 → Apr 2009 · 193 mo
- Diamond Horseshoe Oper Comp, LLCMay 2009 → Jul 2011 · 27 mo
- South Sam Operating Company, LLCAug 2011 → Jul 2026 · 180 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
226
wells completed on the lease
- Producing
- 151
- Plugged
- 72
- NO Type on File
- 2
- NO Production
- 1
Operates them now
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-1-7329, documented in the API reference.