LEASES · O-10-43408 · OIL · DISTRICT 08
David L. Marston
ReportingN & B Oil and Gas LLC · Ward County · Marston Ranch (Clearfork) field
David L. Marston is an RRC oil lease (O-10-43408) in Ward County operated by N & B Oil And Gas LLC, with 17 wells completed on it.
It has reported 517K barrels of oil and 1.4M mcf of gas since December 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 12.5K barrels of oil, down 17% on the year before; the lease peaked at 8.14K barrels in September 2015.
4 operators have filed production on it, most recently N & B Oil And Gas LLC since September 2025.
- 517K
- bbl oil, all reported
- 1.4M
- mcf gas incl. casinghead
- 12.5K
- bbl oil, last 12 reported
- -17%
- vs the 12 before
- 17
- wells completed on it
- 8.14K
- peak month, bbl (Sep 2015)
PDQ LEASE REPORTS · FIRST DEC 2012 · 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 12,491 · prior 12 15,130(-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 75,696 · prior 12 86,077(-12%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 98 reporting months of oil since the peak in Mar 2018. 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.
- 35%
- first-year decline from the peak (nominal Di 48%)
- 0.5
- b factor (hyperbolic)
- 0.90
- fit R²
- 92.8K
- 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 12,491 · prior 12 15,130(-17%)
Fitted hyperbolic curve from the Mar 2018 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 724 | 670 | 623 | 580 |
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.
- Atlantic Exploration, LLCDec 2012 → Aug 2014 · 21 mo
- Centennial Resource Prod, LLCSep 2014 → Oct 2014 · 2 mo
- Blackbeard Operating, LLCNov 2014 → Aug 2025 · 130 mo
- N & B Oil and Gas LLCSep 2025 → Jul 2026 · 11 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
17
wells completed on the lease
- Producing
- 17
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-10-43408, documented in the API reference.