LEASES · G-9-59231 · GAS · DISTRICT 7C
Richardson 138
Upp Operating, LLC · Sutton County · Sawyer (Canyon) field
Richardson 138 is an RRC gas lease (G-9-59231) in Sutton County operated by Upp Operating, LLC, with one well completed on it.
It has reported 77.8K mcf of gas and 399 barrels of condensate since the record begins in January 1993, last reporting volume in July 2026 (statewide data runs through August 2026).
It reported 722 mcf of gas in the 12 months through August 2026.
6 operators have filed production on it, most recently Upp Operating, LLC since April 2019.
- 77.8K
- mcf gas, all reported
- 399
- bbl condensate, all reported
- 722
- mcf gas, 12 months through Aug 2026
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH · LAST VOLUME JUL 2026 · STATEWIDE DATA THROUGH AUG 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.
12 months through Aug 2026 722 · prior 12 849(-15%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 113 reporting months of gas since the peak in Mar 2017. 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.
- 4%
- first-year decline from the peak (nominal Di 4%)
- 0.0
- b factor (exponential)
- 0.80
- fit R²
- 16.2K
- 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 722 · prior 12 849(-15%)
Fitted exponential curve from the Mar 2017 peak, dashed 24 months past the last report
| Projected month | Feb 2027 | Aug 2027 | Feb 2028 | Aug 2028 |
|---|---|---|---|---|
| On the curve, mcf per month | 64 | 63 | 62 | 60 |
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, with what it reported in them.
- American Exploration CompanyJan 1993 → Jul 1995 · 31 mo0 bbl oil · 24.5K mcf gas
- Dreyfus, Louis Natural Gas CorpAug 1995 → Nov 2001 · 76 mo7 bbl oil · 15.9K mcf gas
- Dominion Oklahoma Texas E&P, IncDec 2001 → Dec 2007 · 73 mo5 bbl oil · 14.9K mcf gas
- Highmount Expl & Prod Texas LLCJan 2008 → Sep 2014 · 81 mo4 bbl oil · 10.6K mcf gas
- Enervest Operating, L.L.C.Oct 2014 → Mar 2019 · 54 mo377 bbl oil · 5.14K mcf gas
- Upp Operating, LLCApr 2019 → Nov 2026 · 92 mo6 bbl oil · 6.82K mcf gas
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 Aug 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-9-59231, documented in the API reference.