LEASES · O-10-59015 · OIL · DISTRICT 08
High Lonesome B WC
ReportingSwordfish Energy Operating, LLC · Pecos County · Phantom (Wolfcamp) field
High Lonesome B WC is an RRC oil lease (O-10-59015) in Pecos County operated by Swordfish Energy Operating, LLC, with one well completed on it.
It has reported 307K barrels of oil and 505K mcf of gas since October 2022, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 38.9K barrels of oil, down 32% on the year before; the lease peaked at 27.8K barrels in December 2022.
2 operators have filed production on it, most recently Swordfish Energy Operating, LLC since July 2025.
- 307K
- bbl oil, all reported
- 505K
- mcf gas incl. casinghead
- 38.9K
- bbl oil, last 12 reported
- -32%
- vs the 12 before
- 1
- wells completed on it
- 27.8K
- peak month, bbl (Dec 2022)
PDQ LEASE REPORTS · FIRST OCT 2022 · 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 38,923 · prior 12 57,512(-32%)
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 106,885 · prior 12 135,978(-21%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 40 reporting months of oil since the peak in Dec 2022. 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 448%)
- 1.4
- b factor (hyperbolic)
- 0.87
- fit R²
- 542K
- 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 38,923 · prior 12 57,512(-32%)
Fitted hyperbolic curve from the Dec 2022 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 2,846 | 2,616 | 2,426 | 2,266 |
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.
- Pecos River Exploration, LLCOct 2022 → Jun 2025 · 33 mo
- Swordfish Energy Operating, LLCJul 2025 → Jul 2026 · 13 mo
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 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-10-59015, documented in the API reference.