LEASES · O-13-27427 · OIL · DISTRICT 09
Walnut Bend Field Unit
ReportingSydri Operating, LLC · Cooke County · Walnut Bend (Consolidated) field
Walnut Bend Field Unit is an RRC oil lease (O-13-27427) in Cooke County operated by Sydri Operating, LLC, with 370 wells completed on it.
It has reported 6.69M barrels of oil and 1.38M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 75.5K barrels of oil, down 17% on the year before; the lease peaked at 39.7K barrels in November 2008.
7 operators have filed production on it, most recently Sydri Operating, LLC since July 2021.
- 6.69M
- bbl oil, all reported
- 1.38M
- mcf gas incl. casinghead
- 75.5K
- bbl oil, last 12 reported
- -17%
- vs the 12 before
- 370
- wells completed on it
- 39.7K
- peak month, bbl (Nov 2008)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 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 75,510 · prior 12 90,992(-17%)
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 21,434 · prior 12 22,769(-6%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 120 reporting months of oil 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.
- 9%
- first-year decline from the peak (nominal Di 9%)
- 0.0
- b factor (exponential)
- 0.88
- fit R²
- 838K
- 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 75,510 · prior 12 90,992(-17%)
Fitted exponential 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, bbl per month | 6,157 | 5,882 | 5,619 | 5,368 |
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.
- Arco Oil & Gas Co.Jan 1993 → Feb 1994 · 14 mo
- Vastar Resources, Inc.Mar 1994 → May 1999 · 63 mo
- Gruy Petroleum Management Co.Jun 1999 → Apr 2006 · 83 mo
- Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012 · 80 mo
- Merit Energy CompanyJan 2013 → Nov 2020 · 95 mo
- Team Operating, L.L.C.Dec 2020 → Jun 2021 · 7 mo
- Sydri Operating, LLCJul 2021 → Jul 2026 · 61 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
370
wells completed on the lease
- NO Type on File
- 271
- Plugged
- 94
- Shut IN
- 4
- Producing
- 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-13-27427, documented in the API reference.