LEASES · O-1-17670 · OIL · DISTRICT 01
Menchaca
Reporting1859 Operating LLC · Medina County · Fairfield field
Menchaca is an RRC oil lease (O-1-17670) in Medina County operated by 1859 Operating LLC, with 9 wells completed on it.
It has reported 9.79K barrels of oil since March 2014, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 610 barrels of oil, down 52% on the year before; the lease peaked at 408 barrels in June 2014.
3 operators have filed production on it, most recently 1859 Operating LLC since March 2022.
- 9.79K
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 610
- bbl oil, last 12 reported
- -52%
- vs the 12 before
- 9
- wells completed on it
- 408
- peak month, bbl (Jun 2014)
PDQ LEASE REPORTS · FIRST MAR 2014 · 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 610 · prior 12 1,269(-52%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 23 reporting months of oil since the peak in May 2024. 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.
- 76%
- first-year decline from the peak (nominal Di 325%)
- 1.0
- b factor (hyperbolic)
- 0.71
- fit R²
- 2.63K
- 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 610 · prior 12 1,269(-52%)
Fitted hyperbolic curve from the May 2024 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 26 | 22 | 19 | 16 |
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.
- Premier Minerals, Inc.Mar 2014 → Mar 2021 · 85 mo
- JM Calk Operating, LLCApr 2021 → Feb 2022 · 11 mo
- 1859 Operating LLCMar 2022 → Jul 2026 · 53 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
9
wells completed on the lease
- Producing
- 9
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-1-17670, documented in the API reference.